+
+
+
diff --git a/_includes/v20.2/app/create-maxroach-user-and-bank-database.md b/_includes/v20.2/app/create-maxroach-user-and-bank-database.md
new file mode 100644
index 00000000000..4d5b4626013
--- /dev/null
+++ b/_includes/v20.2/app/create-maxroach-user-and-bank-database.md
@@ -0,0 +1,32 @@
+Start the [built-in SQL shell](cockroach-sql.html):
+
+{% include copy-clipboard.html %}
+~~~ shell
+$ cockroach sql --certs-dir=certs
+~~~
+
+In the SQL shell, issue the following statements to create the `maxroach` user and `bank` database:
+
+{% include copy-clipboard.html %}
+~~~ sql
+> CREATE USER IF NOT EXISTS maxroach;
+~~~
+
+{% include copy-clipboard.html %}
+~~~ sql
+> CREATE DATABASE bank;
+~~~
+
+Give the `maxroach` user the necessary permissions:
+
+{% include copy-clipboard.html %}
+~~~ sql
+> GRANT ALL ON DATABASE bank TO maxroach;
+~~~
+
+Exit the SQL shell:
+
+{% include copy-clipboard.html %}
+~~~ sql
+> \q
+~~~
diff --git a/_includes/v20.2/app/django-basic-sample/models.py b/_includes/v20.2/app/django-basic-sample/models.py
new file mode 100644
index 00000000000..6068f8bbb8e
--- /dev/null
+++ b/_includes/v20.2/app/django-basic-sample/models.py
@@ -0,0 +1,17 @@
+from django.db import models
+
+class Customers(models.Model):
+ id = models.AutoField(primary_key=True)
+ name = models.CharField(max_length=250)
+
+class Products(models.Model):
+ id = models.AutoField(primary_key=True)
+ name = models.CharField(max_length=250)
+ price = models.DecimalField(max_digits=18, decimal_places=2)
+
+class Orders(models.Model):
+ id = models.AutoField(primary_key=True)
+ subtotal = models.DecimalField(max_digits=18, decimal_places=2)
+ customer = models.ForeignKey(Customers, on_delete=models.CASCADE, null=True)
+ product = models.ManyToManyField(Products)
+
diff --git a/_includes/v20.2/app/django-basic-sample/settings.py b/_includes/v20.2/app/django-basic-sample/settings.py
new file mode 100644
index 00000000000..c94721d61e5
--- /dev/null
+++ b/_includes/v20.2/app/django-basic-sample/settings.py
@@ -0,0 +1,125 @@
+"""
+Django settings for myproject project.
+
+Generated by 'django-admin startproject' using Django 3.0.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.0/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/3.0/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'spl=g73)8-)ja%x*k1eje4d#&24#t)zao^s$6vc1rdk(e3t!e('
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = ['0.0.0.0']
+
+
+# Application definition
+
+INSTALLED_APPS = [
+ 'django.contrib.admin',
+ 'django.contrib.auth',
+ 'django.contrib.contenttypes',
+ 'django.contrib.sessions',
+ 'django.contrib.messages',
+ 'django.contrib.staticfiles',
+ 'myproject',
+]
+
+MIDDLEWARE = [
+ 'django.middleware.security.SecurityMiddleware',
+ 'django.contrib.sessions.middleware.SessionMiddleware',
+ 'django.middleware.common.CommonMiddleware',
+ 'django.middleware.csrf.CsrfViewMiddleware',
+ 'django.contrib.auth.middleware.AuthenticationMiddleware',
+ 'django.contrib.messages.middleware.MessageMiddleware',
+ 'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'myproject.urls'
+
+TEMPLATES = [
+ {
+ 'BACKEND': 'django.template.backends.django.DjangoTemplates',
+ 'DIRS': [],
+ 'APP_DIRS': True,
+ 'OPTIONS': {
+ 'context_processors': [
+ 'django.template.context_processors.debug',
+ 'django.template.context_processors.request',
+ 'django.contrib.auth.context_processors.auth',
+ 'django.contrib.messages.context_processors.messages',
+ ],
+ },
+ },
+]
+
+WSGI_APPLICATION = 'myproject.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/3.0/ref/settings/#databases
+
+DATABASES = {
+ 'default': {
+ 'ENGINE': 'django_cockroachdb',
+ 'NAME': 'bank',
+ 'USER': 'django',
+ 'PASSWORD': 'password',
+ 'HOST': 'localhost',
+ 'PORT': '26257',
+ }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/3.0/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+ {
+ 'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+ },
+ {
+ 'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+ },
+ {
+ 'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+ },
+ {
+ 'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+ },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/3.0/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/3.0/howto/static-files/
+
+STATIC_URL = '/static/'
diff --git a/_includes/v20.2/app/django-basic-sample/urls.py b/_includes/v20.2/app/django-basic-sample/urls.py
new file mode 100644
index 00000000000..9550d713ffa
--- /dev/null
+++ b/_includes/v20.2/app/django-basic-sample/urls.py
@@ -0,0 +1,20 @@
+from django.contrib import admin
+from django.urls import path
+
+from .views import CustomersView, OrdersView, PingView, ProductView
+
+urlpatterns = [
+ path('admin/', admin.site.urls),
+
+ path('ping/', PingView.as_view()),
+
+ # Endpoints for customers URL.
+ path('customer/', CustomersView.as_view(), name='customers'),
+ path('customer/From a SQL perspective, a table and its secondary indexes initially map to a single range, where each key-value pair in the range represents a single row in the table (also called the primary index because the table is sorted by the primary key) or a single row in a secondary index. As soon as that range reaches 512 MiB in size, it splits into two ranges. This process continues for these new ranges as the table and its indexes continue growing. +**Replica** | CockroachDB replicates each range (3 times by default) and stores each replica on a different node. +**Leaseholder** | For each range, one of the replicas holds the "range lease". This replica, referred to as the "leaseholder", is the one that receives and coordinates all read and write requests for the range.
Unlike writes, read requests access the leaseholder and send the results to the client without needing to coordinate with any of the other range replicas. This reduces the network round trips involved and is possible because the leaseholder is guaranteed to be up-to-date due to the fact that all write requests also go to the leaseholder. +**Raft Leader** | For each range, one of the replicas is the "leader" for write requests. Via the [Raft consensus protocol](https://www.cockroachlabs.com/docs/{{ page.version.version }}/architecture/replication-layer.html#raft), this replica ensures that a majority of replicas (the leader and enough followers) agree, based on their Raft logs, before committing the write. The Raft leader is almost always the same replica as the leaseholder. +**Raft Log** | For each range, a time-ordered log of writes to the range that its replicas have agreed on. This log exists on-disk with each replica and is the range's source of truth for consistent replication. diff --git a/_includes/v20.2/misc/beta-warning.md b/_includes/v20.2/misc/beta-warning.md new file mode 100644 index 00000000000..d326ecc3647 --- /dev/null +++ b/_includes/v20.2/misc/beta-warning.md @@ -0,0 +1,3 @@ +{{site.data.alerts.callout_danger}} +**This is a beta feature.** It is currently undergoing continued testing. Please [file a Github issue](https://www.cockroachlabs.com/docs/stable/file-an-issue.html) with us if you identify a bug. +{{site.data.alerts.end}} diff --git a/_includes/v20.2/misc/chrome-localhost.md b/_includes/v20.2/misc/chrome-localhost.md new file mode 100644 index 00000000000..24f9bb159a3 --- /dev/null +++ b/_includes/v20.2/misc/chrome-localhost.md @@ -0,0 +1,3 @@ +{{site.data.alerts.callout_info}} +If you are using Google Chrome, and you are getting an error about not being able to reach `localhost` because its certificate has been revoked, go to chrome://flags/#allow-insecure-localhost, enable "Allow invalid certificates for resources loaded from localhost", and then restart the browser. Enabling this Chrome feature degrades security for all sites running on `localhost`, not just CockroachDB's Admin UI, so be sure to enable the feature only temporarily. +{{site.data.alerts.end}} diff --git a/_includes/v20.2/misc/client-side-intervention-example.md b/_includes/v20.2/misc/client-side-intervention-example.md new file mode 100644 index 00000000000..347a6160dcb --- /dev/null +++ b/_includes/v20.2/misc/client-side-intervention-example.md @@ -0,0 +1,27 @@ +The Python-like pseudocode below shows how to implement an application-level retry loop; it does not require your driver or ORM to implement [advanced retry handling logic](advanced-client-side-transaction-retries.html), so it can be used from any programming language or environment. In particular, your retry loop must: + +- Raise an error if the `max_retries` limit is reached +- Retry on `40001` error codes +- [`COMMIT`](commit-transaction.html) at the end of the `try` block +- Implement [exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) logic as shown below for best performance + +~~~ python +while true: + n++ + if n == max_retries: + throw Error("did not succeed within N retries") + try: + # add logic here to run all your statements + conn.exec('COMMIT') + catch error: + if error.code != "40001": + throw error + else: + # This is a retry error, so we roll back the current transaction + # and sleep for a bit before retrying. The sleep time increases + # for each failed transaction. Adapted from + # https://colintemple.com/2017/03/java-exponential-backoff/ + conn.exec('ROLLBACK'); + sleep_ms = int(((2**n) * 100) + rand( 100 - 1 ) + 1) + sleep(sleep_ms) # Assumes your sleep() takes milliseconds +~~~ diff --git a/_includes/v20.2/misc/customizing-the-savepoint-name.md b/_includes/v20.2/misc/customizing-the-savepoint-name.md new file mode 100644 index 00000000000..ed895f906f3 --- /dev/null +++ b/_includes/v20.2/misc/customizing-the-savepoint-name.md @@ -0,0 +1,5 @@ +Set the `force_savepoint_restart` [session variable](set-vars.html#supported-variables) to `true` to enable using a custom name for the [retry savepoint](advanced-client-side-transaction-retries.html#retry-savepoints). + +Once this variable is set, the [`SAVEPOINT`](savepoint.html) statement will accept any name for the retry savepoint, not just `cockroach_restart`. In addition, it causes every savepoint name to be equivalent to `cockroach_restart`, therefore disallowing the use of [nested transactions](transactions.html#nested-transactions). + +This feature exists to support applications that want to use the [advanced client-side transaction retry protocol](advanced-client-side-transaction-retries.html), but cannot customize the name of savepoints to be `cockroach_restart`. For example, this may be necessary because you are using an ORM that requires its own names for savepoints. diff --git a/_includes/v20.2/misc/debug-subcommands.md b/_includes/v20.2/misc/debug-subcommands.md new file mode 100644 index 00000000000..379047a6441 --- /dev/null +++ b/_includes/v20.2/misc/debug-subcommands.md @@ -0,0 +1,3 @@ +While the `cockroach debug` command has a few subcommands, users are expected to use only the [`zip`](cockroach-debug-zip.html), [`encryption-active-key`](cockroach-debug-encryption-active-key.html), [`merge-logs`](cockroach-debug-merge-logs.html), and [`ballast`](cockroach-debug-ballast.html) subcommands. + +The other `debug` subcommands are useful only to CockroachDB's developers and contributors. diff --git a/_includes/v20.2/misc/delete-statistics.md b/_includes/v20.2/misc/delete-statistics.md new file mode 100644 index 00000000000..a568055e583 --- /dev/null +++ b/_includes/v20.2/misc/delete-statistics.md @@ -0,0 +1,17 @@ +To delete statistics for all tables in all databases: + +{% include copy-clipboard.html %} +~~~ sql +> DELETE FROM system.table_statistics WHERE true; +~~~ + +To delete a named set of statistics (e.g, one named "my_stats"), run a query like the following: + +{% include copy-clipboard.html %} +~~~ sql +> DELETE FROM system.table_statistics WHERE name = 'my_stats'; +~~~ + +After deleting statistics, restart the nodes in your cluster to clear the statistics caches. + +For more information about the `DELETE` statement, see [`DELETE`](delete.html). diff --git a/_includes/v20.2/misc/diagnostics-callout.html b/_includes/v20.2/misc/diagnostics-callout.html new file mode 100644 index 00000000000..a969a8cf152 --- /dev/null +++ b/_includes/v20.2/misc/diagnostics-callout.html @@ -0,0 +1 @@ +{{site.data.alerts.callout_info}}By default, each node of a CockroachDB cluster periodically shares anonymous usage details with Cockroach Labs. For an explanation of the details that get shared and how to opt-out of reporting, see Diagnostics Reporting.{{site.data.alerts.end}} diff --git a/_includes/v20.2/misc/drivers.md b/_includes/v20.2/misc/drivers.md new file mode 100644 index 00000000000..871f6a830a4 --- /dev/null +++ b/_includes/v20.2/misc/drivers.md @@ -0,0 +1,18 @@ +{{site.data.alerts.callout_info}} +Applications may encounter incompatibilities when using advanced or obscure features of a driver or ORM with **beta-level** support. If you encounter problems, please [open an issue](https://github.com/cockroachdb/cockroach/issues/new) with details to help us make progress toward full support. +{{site.data.alerts.end}} + +| App Language | Drivers | ORMs | Support level | +|--------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------------------------+------| +| Python | [psycopg2](build-a-python-app-with-cockroachdb.html) | [SQLAlchemy](build-a-python-app-with-cockroachdb-sqlalchemy.html)
[Django](build-a-python-app-with-cockroachdb-django.html)
[PonyORM](build-a-python-app-with-cockroachdb-pony.html)
[peewee](http://docs.peewee-orm.com/en/latest/peewee/playhouse.html#cockroach-database) | Full | +| Java | [JDBC](build-a-java-app-with-cockroachdb.html) | [Hibernate](build-a-java-app-with-cockroachdb-hibernate.html)
[jOOQ](build-a-java-app-with-cockroachdb-jooq.html) | Full | +| Go | [pq](build-a-go-app-with-cockroachdb.html) | [GORM](build-a-go-app-with-cockroachdb-gorm.html) | Full | +| Ruby | [pg](build-a-ruby-app-with-cockroachdb.html) | [ActiveRecord](build-a-ruby-app-with-cockroachdb-activerecord.html) | Beta | +| Node.js | [pg](build-a-nodejs-app-with-cockroachdb.html) | [Sequelize](build-a-nodejs-app-with-cockroachdb-sequelize.html) | Beta | +| C | [libpq](http://www.postgresql.org/docs/9.5/static/libpq.html) | No ORMs tested | Beta | +| C++ | [libpqxx](build-a-c++-app-with-cockroachdb.html) | No ORMs tested | Beta | +| C# (.NET) | [Npgsql](build-a-csharp-app-with-cockroachdb.html) | No ORMs tested | Beta | +| Clojure | [java.jdbc](build-a-clojure-app-with-cockroachdb.html) | No ORMs tested | Beta | +| PHP | [php-pgsql](build-a-php-app-with-cockroachdb.html) | No ORMs tested | Beta | +| Rust | postgres {% comment %} This link is in HTML instead of Markdown because HTML proofer dies bc of https://github.com/rust-lang/crates.io/issues/163 {% endcomment %} | No ORMs tested | Beta | +| TypeScript | No drivers tested | [TypeORM](https://typeorm.io/#/) | Beta | diff --git a/_includes/v20.2/misc/enterprise-features.md b/_includes/v20.2/misc/enterprise-features.md new file mode 100644 index 00000000000..704a3d32e34 --- /dev/null +++ b/_includes/v20.2/misc/enterprise-features.md @@ -0,0 +1,12 @@ +Feature | Description +--------+------------------------- +[Geo-Partitioning](topology-geo-partitioned-replicas.html) | This feature gives you row-level control of how and where your data is stored to dramatically reduce read and write latencies and assist in meeting regulatory requirements in multi-region deployments. +[Follower Reads](follower-reads.html) | This feature reduces read latency in multi-region deployments by using the closest replica at the expense of reading slightly historical data. +[`BACKUP`](backup.html) | This feature creates full or incremental backups of your cluster's schema and data that are consistent as of a given timestamp, stored on a service such as AWS S3, Google Cloud Storage, NFS, or HTTP storage.
Backups can be locality-aware such that each node writes files only to the backup destination that matches the node's [locality](cockroach-start.html#locality). This is useful for reducing cloud storage data transfer costs by keeping data within cloud regions and complying with data domiciling requirements. +[`RESTORE`](restore.html) | This feature restores your cluster's schemas and data from an enterprise `BACKUP`. +[Change Data Capture](change-data-capture.html) (CDC) | This feature provides efficient, distributed, row-level [change feeds into Apache Kafka](create-changefeed.html) for downstream processing such as reporting, caching, or full-text indexing. +[Node Map](enable-node-map.html) | This feature visualizes the geographical configuration of a cluster by plotting node localities on a world map. +[Locality-Aware Index Selection](cost-based-optimizer.html#preferring-the-nearest-index) | Given [multiple identical indexes](topology-duplicate-indexes.html) that have different locality constraints using [replication zones](configure-replication-zones.html), the cost-based optimizer will prefer the index that is closest to the gateway node that is planning the query. In multi-region deployments, this can lead to performance improvements due to improved data locality and reduced network traffic. +[Encryption at Rest](encryption.html#encryption-at-rest-enterprise) | Supplementing CockroachDB's encryption in flight capabilities, this feature provides transparent encryption of a node's data on the local disk. It allows encryption of all files on disk using AES in counter mode, with all key sizes allowed. +[GSSAPI with Kerberos Authentication](gssapi_authentication.html) | CockroachDB supports the Generic Security Services API (GSSAPI) with Kerberos authentication, which lets you use an external enterprise directory system that supports Kerberos, such as Active Directory. +[`EXPORT`](export.html) | This feature uses the CockroachDB distributed execution engine to quickly get large sets of data out of CockroachDB in a CSV format that can be ingested by downstream systems. diff --git a/_includes/v20.2/misc/experimental-warning.md b/_includes/v20.2/misc/experimental-warning.md new file mode 100644 index 00000000000..d38a9755593 --- /dev/null +++ b/_includes/v20.2/misc/experimental-warning.md @@ -0,0 +1,3 @@ +{{site.data.alerts.callout_danger}} +**This is an experimental feature**. The interface and output are subject to change. +{{site.data.alerts.end}} diff --git a/_includes/v20.2/misc/explore-benefits-see-also.md b/_includes/v20.2/misc/explore-benefits-see-also.md new file mode 100644 index 00000000000..72cbc961e3b --- /dev/null +++ b/_includes/v20.2/misc/explore-benefits-see-also.md @@ -0,0 +1,8 @@ +- [Replication & Rebalancing](demo-replication-and-rebalancing.html) +- [Fault Tolerance & Recovery](demo-fault-tolerance-and-recovery.html) +- [Low Latency Multi-Region Deployment](demo-low-latency-multi-region-deployment.html) +- [Serializable Transactions](demo-serializable.html) +- [Cross-Cloud Migration](demo-automatic-cloud-migration.html) +- [Follow-the-Workload](demo-follow-the-workload.html) +- [Orchestration](orchestrate-a-local-cluster-with-kubernetes-insecure.html) +- [JSON Support](demo-json-support.html) diff --git a/_includes/v20.2/misc/external-urls.md b/_includes/v20.2/misc/external-urls.md new file mode 100644 index 00000000000..9242847e5b2 --- /dev/null +++ b/_includes/v20.2/misc/external-urls.md @@ -0,0 +1,48 @@ +~~~ +[scheme]://[host]/[path]?[parameters] +~~~ + +Location | Scheme | Host | Parameters | +|-------------------------------------------------------------+-------------+--------------------------------------------------+---------------------------------------------------------------------------- +Amazon | `s3` | Bucket name | `AUTH` [1](#considerations) (optional; can be `implicit` or `specified`), `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `AWS_SESSION_TOKEN` +Azure | `azure` | N/A (see [Example file URLs](#example-file-urls) | `AZURE_ACCOUNT_KEY`, `AZURE_ACCOUNT_NAME` +Google Cloud [2](#considerations) | `gs` | Bucket name | `AUTH` (optional; can be `default`, `implicit`, or `specified`), `CREDENTIALS` +HTTP [3](#considerations) | `http` | Remote host | N/A +NFS/Local [4](#considerations) | `nodelocal` | `nodeID` or `self` [5](#considerations) (see [Example file URLs](#example-file-urls)) | N/A +S3-compatible services [6](#considerations) | `s3` | Bucket name | `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `AWS_SESSION_TOKEN`, `AWS_REGION` [7](#considerations) (optional), `AWS_ENDPOINT` + +{{site.data.alerts.callout_info}} +The location parameters often contain special characters that need to be URI-encoded. Use Javascript's [encodeURIComponent](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent) function or Go language's [url.QueryEscape](https://golang.org/pkg/net/url/#QueryEscape) function to URI-encode the parameters. Other languages provide similar functions to URI-encode special characters. +{{site.data.alerts.end}} + +{{site.data.alerts.callout_info}} +If your environment requires an HTTP or HTTPS proxy server for outgoing connections, you can set the standard `HTTP_PROXY` and `HTTPS_PROXY` environment variables when starting CockroachDB. + + If you cannot run a full proxy, you can disable external HTTP(S) access (as well as custom HTTP(S) endpoints) when performing bulk operations (e.g., `BACKUP`, `RESTORE`, etc.) by using the [`--external-io-disable-http` flag](cockroach-start.html#security). You can also disable the use of implicit credentials when accessing external cloud storage services for various bulk operations by using the [`--external-io-disable-implicit-credentials` flag](cockroach-start.html#security). +{{site.data.alerts.end}} + + + +- 1 If the `AUTH` parameter is not provided, AWS connections default to `specified` and the access keys must be provided in the URI parameters. If the `AUTH` parameter is `implicit`, the access keys can be ommitted and [the credentials will be loaded from the environment](https://docs.aws.amazon.com/sdk-for-go/api/aws/session/). + +- 2 If the `AUTH` parameter is not specified, the `cloudstorage.gs.default.key` [cluster setting](cluster-settings.html) will be used if it is non-empty, otherwise the `implicit` behavior is used. If the `AUTH` parameter is `implicit`, all GCS connections use Google's [default authentication strategy](https://cloud.google.com/docs/authentication/production#providing_credentials_to_your_application). If the `AUTH` parameter is `default`, the `cloudstorage.gs.default.key` [cluster setting](cluster-settings.html) must be set to the contents of a [service account file](https://cloud.google.com/docs/authentication/production#obtaining_and_providing_service_account_credentials_manually) which will be used during authentication. If the `AUTH` parameter is `specified`, GCS connections are authenticated on a per-statement basis, which allows the JSON key object to be sent in the `CREDENTIALS` parameter. The JSON key object should be base64-encoded (using the standard encoding in [RFC 4648](https://tools.ietf.org/html/rfc4648)). + +- 3 You can create your own HTTP server with [Caddy or nginx](create-a-file-server.html). A custom root CA can be appended to the system's default CAs by setting the `cloudstorage.http.custom_ca` [cluster setting](cluster-settings.html), which will be used when verifying certificates from HTTPS URLs. + +- 4 The file system backup location on the NFS drive is relative to the path specified by the `--external-io-dir` flag set while [starting the node](cockroach-start.html). If the flag is set to `disabled`, then imports from local directories and NFS drives are disabled. + +- 5 Using a `nodeID` is required and the data files will be in the `extern` directory of the specified node. In most cases (including single-node clusters), using `nodelocal://1/
`timeout client`
`timeout server` | Timeout values that should be suitable for most deployments. + `bind` | The port that HAProxy listens on. This is the port clients will connect to and thus needs to be allowed by your network configuration.
This tutorial assumes HAProxy is running on a separate machine from CockroachDB nodes. If you run HAProxy on the same machine as a node (not recommended), you'll need to change this port, as `26257` is likely already being used by the CockroachDB node. + `balance` | The balancing algorithm. This is set to `roundrobin` to ensure that connections get rotated amongst nodes (connection 1 on node 1, connection 2 on node 2, etc.). Check the [HAProxy Configuration Manual](http://cbonte.github.io/haproxy-dconv/1.7/configuration.html#4-balance) for details about this and other balancing algorithms. + `option httpchk` | The HTTP endpoint that HAProxy uses to check node health. [`/health?ready=1`](monitoring-and-alerting.html#health-ready-1) ensures that HAProxy doesn't direct traffic to nodes that are live but not ready to receive requests. + `server` | For each included node, this field specifies the address the node advertises to other nodes in the cluster, i.e., the addressed pass in the [`--advertise-addr` flag](cockroach-start.html#networking) on node startup. Make sure hostnames are resolvable and IP addresses are routable from HAProxy. + + {{site.data.alerts.callout_info}} + For full details on these and other configuration settings, see the [HAProxy Configuration Manual](http://cbonte.github.io/haproxy-dconv/1.7/configuration.html). + {{site.data.alerts.end}} diff --git a/_includes/v20.2/misc/install-next-steps.html b/_includes/v20.2/misc/install-next-steps.html new file mode 100644 index 00000000000..2111bdbed9c --- /dev/null +++ b/_includes/v20.2/misc/install-next-steps.html @@ -0,0 +1,16 @@ +
-
+
- If you're just getting started with CockroachDB:
+
-
+
- Start a cluster locally and talk to it via the built-in SQL client +
- Learn more about CockroachDB SQL +
- Build a simple application with CockroachDB using Postgres-compatible client drivers and ORMs +
- Explore core CockroachDB features like automatic replication, rebalancing, and fault tolerance +
+ - If you're ready to run CockroachDB in production: + + +
The CockroachDB binary for Linux requires glibc, libncurses, and tzdata, which are found by default on nearly all Linux distributions, with Alpine as the notable exception.
Setting `--log-dir` to a blank directory (`--log-dir=""`) disables logging to files. +`--log-dir-max-size` | After the log directory reaches the specified size, delete the oldest log file. The flag's argument takes standard file sizes, such as `--log-dir-max-size=1GiB`.
**Default**: 100MiB +`--log-file-max-size` | After logs reach the specified size, begin writing logs to a new file. The flag's argument takes standard file sizes, such as `--log-file-max-size=2MiB`.
**Default**: 10MiB +`--log-file-verbosity` | Only writes messages to log files if they are at or above the specified [severity level](debug-and-error-logs.html#severity-levels), such as `--log-file-verbosity=WARNING`. **Requires** logging to files.
**Default**: `INFO` +`--logtostderr` | Enable logging to `stderr` for messages at or above the specified [severity level](debug-and-error-logs.html#severity-levels), such as `--logtostderr=ERROR`
If you use this flag without specifying the severity level (e.g., `cockroach start --logtostderr`), it prints messages of *all* severities to `stderr`.
Setting `--logtostderr=NONE` disables logging to `stderr`. +`--no-color` | Do not colorize `stderr`. Possible values: `true` or `false`.
When set to `false`, messages logged to `stderr` are colorized based on [severity level](debug-and-error-logs.html#severity-levels).
**Default:** `false` +`--sql-audit-dir` | New in v2.0: If non-empty, create a SQL audit log in this directory. By default, SQL audit logs are written in the same directory as the other logs generated by CockroachDB. For more information, see [SQL Audit Logging](sql-audit-logging.html). diff --git a/_includes/v20.2/misc/mitigate-contention-note.md b/_includes/v20.2/misc/mitigate-contention-note.md new file mode 100644 index 00000000000..ffe3cff554a --- /dev/null +++ b/_includes/v20.2/misc/mitigate-contention-note.md @@ -0,0 +1,5 @@ +{{site.data.alerts.callout_info}} +It's possible to mitigate read-write contention and reduce transaction retries using the following techniques: +1. By performing reads using [`AS OF SYSTEM TIME`](performance-best-practices-overview.html#use-as-of-system-time-to-decrease-conflicts-with-long-running-queries). +2. By using [`SELECT FOR UPDATE`](select-for-update.html) to order transactions by controlling concurrent access to one or more rows of a table. This reduces retries in scenarios where a transaction performs a read and then updates the same row it just read. +{{site.data.alerts.end}} diff --git a/_includes/v20.2/misc/movr-schema.md b/_includes/v20.2/misc/movr-schema.md new file mode 100644 index 00000000000..0ce2a8f83e7 --- /dev/null +++ b/_includes/v20.2/misc/movr-schema.md @@ -0,0 +1,12 @@ +The six tables in the `movr` database store user, vehicle, and ride data for MovR: + +Table | Description +--------|---------------------------- +`users` | People registered for the service. +`vehicles` | The pool of vehicles available for the service. +`rides` | When and where users have rented a vehicle. +`promo_codes` | Promotional codes for users. +`user_promo_codes` | Promotional codes in use by users. +`vehicle_location_histories` | Vehicle location history. + +
diff --git a/_includes/v20.2/misc/movr-workflow.md b/_includes/v20.2/misc/movr-workflow.md
new file mode 100644
index 00000000000..3dc9a61b910
--- /dev/null
+++ b/_includes/v20.2/misc/movr-workflow.md
@@ -0,0 +1,49 @@
+The workflow for MovR is as follows (with approximations of the corresponding SQL for each step):
+
+1. A user loads the app and sees the 25 closest vehicles:
+
+ ~~~ sql
+ > SELECT id, city, status, ... FROM vehicles WHERE city = | Variable name | +Description | +Initial value | +Modify with
+ SET
+ ? |
+ View with
+ SHOW
+ ? |
+
+ application_name
+ |
+ The current application name for statistics collection. | +Empty string, or cockroach for sessions from the built-in SQL client. |
+ Yes | +Yes | +
+ bytea_output
+ |
+ The mode for conversions from STRING to BYTES. |
+ hex | +Yes | +Yes | +
+ crdb_version
+ |
+ The version of CockroachDB. | +`CockroachDB OSS version` | +No | +Yes | +
+ database
+ |
+ The current database. | +Database in connection string, or empty if not specified. | +Yes | +Yes | +
+ default_int_size
+ |
+ The size, in bytes, of an INT type. |
+
+ 8
+ |
+ Yes | +Yes | +
+ default_transaction_isolation
+ |
+ All transactions execute with SERIALIZABLE isolation. See Transactions: Isolation levels. |
+
+ SERIALIZABLE
+ |
+ No | +Yes | +
+ default_transaction_read_only
+ |
+ The default transaction access mode for the current session. If set to on, only read operations are allowed in transactions in the current session; if set to off, both read and write operations are allowed. See SET TRANSACTION
+ for more details. |
+
+ off
+ |
+ Yes | +Yes | +
+ distsql
+ |
+ The query distribution mode for the session. By default, CockroachDB determines which queries are faster to execute if distributed across multiple nodes, and all other queries are run through the gateway node. | +
+ auto
+ |
+ Yes | +Yes | +
+
+ enable_implicit_select_for_update
+ |
+ Indicates whether UPDATE statements acquire locks using the FOR UPDATE locking mode during their initial row scan, which improves performance for contended workloads. For more information about how FOR UPDATE locking works, see the documentation for SELECT FOR UPDATE. |
+
+ on
+ |
+ Yes | +Yes | +
+ enable_zigzag_join
+ |
+ Indicates whether the cost-based optimizer will plan certain queries using a zig-zag merge join algorithm, which searches for the desired intersection by jumping back and forth between the indexes based on the fact that after constraining indexes, they share an ordering. | +
+ on
+ |
+ Yes | +Yes | +
+ extra_float_digits
+ |
+ The number of digits displayed for floating-point values. Only values between -15 and 3 are supported. |
+
+ 0
+ |
+ Yes | +Yes | +
+ reorder_joins_limit
+ |
+ Maximum number of joins that the optimizer will attempt to reorder when searching for an optimal query execution plan. For more information, see Join reordering. | +
+ 4
+ |
+ Yes | +Yes | +
force_savepoint_restart |
+ When set to true, allows the SAVEPOINT statement to accept any name for a savepoint. |
+
+ off
+ |
+ Yes | +Yes | +
+ node_id
+ |
+ The ID of the node currently connected to. + This variable is particularly useful for verifying load balanced connections. |
+ Node-dependent | +No | +Yes | +
+ optimizer_foreign_keys
+ |
+ If off, disables optimizer-driven foreign key checks.
+ |
+ on |
+ Yes | +Yes | +
+ results_buffer_size
+ |
+ The default size of the buffer that accumulates results for a statement or a batch of statements before they are sent to the client. This can also be set for all connections using the 'sql.defaults.results_buffer_size' cluster setting. Note that auto-retries generally only happen while no results have been delivered to the client, so reducing this size can increase the number of retriable errors a client receives. On the other hand, increasing the buffer size can increase the delay until the client receives the first result row. Setting to 0 disables any buffering. + |
+ 16384
+ |
+ Yes | +Yes | +
+ require_explicit_primary_keys
+ |
+ If on, CockroachDB throws on error for all tables created without an explicit primary key defined.
+ |
+
+ off
+ |
+ Yes | +Yes | +
+ search_path
+ |
+ A list of schemas that will be searched to resolve unqualified table or function names. For more details, see SQL name resolution. | +
+ public
+ |
+ Yes | +Yes | +
+ server_version
+ |
+ The version of PostgreSQL that CockroachDB emulates. | +Version-dependent | +No | +Yes | +
+ server_version_num
+ |
+ The version of PostgreSQL that CockroachDB emulates. | +Version-dependent | +Yes | +Yes | +
+ session_id
+ |
+ The ID of the current session. | +Session-dependent | +No | +Yes | +
+ session_user
+ |
+ The user connected for the current session. | +User in connection string | +No | +Yes | +
+ sql_safe_updates
+ |
+ If false, potentially unsafe SQL statements are allowed, including DROP of a non-empty database and all dependent objects, DELETE without a WHERE clause, UPDATE without a WHERE clause, and ALTER TABLE .. DROP COLUMN. See Allow Potentially Unsafe SQL Statements for more details. |
+
+ true for interactive sessions from the built-in SQL client,false for sessions from other clients |
+ Yes | +Yes | +
+ statement_timeout
+ |
+ The amount of time a statement can run before being stopped. + This value can be an int (e.g., 10) and will be interpreted as milliseconds. It can also be an interval or string argument, where the string can be parsed as a valid interval (e.g., '4s'). A value of 0 turns it off. |
+
+ 0s
+ |
+ Yes | +Yes | +
+ timezone
+ |
+ The default time zone for the current session. + This session variable was named "time zone" (with a space) in CockroachDB 1.x. It has been renamed for compatibility with PostgreSQL. |
+
+ UTC
+ |
+ Yes | +Yes | +
+ tracing
+ |
+ The trace recording state. | +
+ off
+ |
+ + | +Yes | +
+ transaction_isolation
+ |
+ All transactions execute with SERIALIZABLE isolation. See Transactions: Isolation levels. + This session variable was called transaction isolation level (with spaces) in CockroachDB 1.x. It has been renamed for compatibility with PostgreSQL. |
+
+ SERIALIZABLE
+ |
+ No | +Yes | +
+ transaction_priority
+ |
+ The priority of the current transaction. See Transactions: Isolation levels for more details. + This session variable was called transaction priority (with a space) in CockroachDB 1.x. It has been renamed for compatibility with PostgreSQL. |
+
+ NORMAL
+ |
+ Yes | +Yes | +
+ transaction_read_only
+ |
+ The access mode of the current transaction. See Set Transaction for more details. | +
+ off
+ |
+ Yes | +Yes | +
+ transaction_status
+ |
+ The state of the current transaction. See Transactions for more details. + This session variable was called transaction status (with a space) in CockroachDB 1.x. It has been renamed for compatibility with PostgreSQL. |
+
+ NoTxn
+ |
+ No | +Yes | +
+ vectorize
+ |
+ The vectorized execution engine mode. Options include auto, on, and off.
+ For more details, see Configuring vectorized execution for CockroachDB.
+ |
+
+ auto
+ |
+ Yes | +Yes | +
+ vectorize_row_count_threshold
+ |
+ The minimum number of rows required to use the vectorized engine to execute a query plan. + | +
+ 1000
+ |
+ Yes | +Yes | +
+ client_encoding
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ UTF8
+ |
+ No | +Yes | +
+ client_min_messages
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ notice
+ |
+ No | +Yes | +
+ datestyle
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ ISO
+ |
+ No | +Yes | +
+ integer_datetimes
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ on
+ |
+ No | +Yes | +
+ intervalstyle
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ postgres
+ |
+ No | +Yes | +
+ max_identifier_length
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ 128
+ |
+ No | +Yes | +
+ max_index_keys
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ 32
+ |
+ No | +Yes | +
+ standard_conforming_strings
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ on
+ |
+ No | +Yes | +
+ server_encoding
+ |
+ (Reserved; exposed only for ORM compatibility.) | +
+ UTF8
+ |
+ Yes | +Yes | +
+
+ 4. To verify that data is being collected, go to **Graph**, enter the `sys_uptime` variable in the field, click **Execute**, and then click the **Graph** tab. The screen should like this:
+
+ 
+
+ {{site.data.alerts.callout_success}}
+ Prometheus auto-completes CockroachDB time series metrics for you, but if you want to see a full listing, with descriptions, port-forward as described in {% if page.secure == true %}[Access the Admin UI](#step-4-access-the-admin-ui){% else %}[Access the Admin UI](#step-4-access-the-admin-ui){% endif %} and then point your browser to http://localhost:8080/_status/vars.
+
+ For more details on using the Prometheus UI, see their [official documentation](https://prometheus.io/docs/introduction/getting_started/).
+ {{site.data.alerts.end}}
+
+### Configure Alertmanager
+
+Active monitoring helps you spot problems early, but it is also essential to send notifications when there are events that require investigation or intervention. This section shows you how to use [Alertmanager](https://prometheus.io/docs/alerting/alertmanager/) and CockroachDB's starter [alerting rules](https://github.com/cockroachdb/cockroach/blob/master/cloud/kubernetes/prometheus/alert-rules.yaml) to do this.
+
+1. Download our alertmanager-config.yaml configuration file:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ curl -OOOOOOOOO \
+ https://raw.githubusercontent.com/cockroachdb/cockroach/master/cloud/kubernetes/prometheus/alertmanager-config.yaml
+ ~~~
+
+2. Edit the `alertmanager-config.yaml` file to [specify the desired receivers for notifications](https://prometheus.io/docs/alerting/configuration/#receiver). Initially, the file contains a dummy web hook.
+
+3. Add this configuration to the Kubernetes cluster as a secret, renaming it to `alertmanager.yaml` and labelling it to make it easier to find:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl create secret generic alertmanager-cockroachdb \
+ --from-file=alertmanager.yaml=alertmanager-config.yaml
+ ~~~
+
+ ~~~
+ secret/alertmanager-cockroachdb created
+ ~~~
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl label secret alertmanager-cockroachdb app=cockroachdb
+ ~~~
+
+ ~~~
+ secret/alertmanager-cockroachdb labeled
+ ~~~
+
+ {{site.data.alerts.callout_danger}}
+ The name of the secret, `alertmanager-cockroachdb`, must match the name used in the `alertmanager.yaml` file. If they differ, the Alertmanager instance will start without configuration, and nothing will happen.
+ {{site.data.alerts.end}}
+
+4. Use our [`alertmanager.yaml`](https://github.com/cockroachdb/cockroach/blob/master/cloud/kubernetes/prometheus/alertmanager.yaml) file to create the various objects necessary to run an Alertmanager instance, including a ClusterIP service so that Prometheus can forward alerts:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl apply \
+ -f https://raw.githubusercontent.com/cockroachdb/cockroach/master/cloud/kubernetes/prometheus/alertmanager.yaml
+ ~~~
+
+ ~~~
+ alertmanager.monitoring.coreos.com/cockroachdb created
+ service/alertmanager-cockroachdb created
+ ~~~
+
+5. Verify that Alertmanager is running:
+
+ 1. Port-forward from your local machine to the pod running Alertmanager:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl port-forward alertmanager-cockroachdb-0 9093
+ ~~~
+
+ 2. Go to http://localhost:9093 in your browser. The screen should look like this:
+
+ 
+
+6. Ensure that the Alertmanagers are visible to Prometheus by opening http://localhost:9090/status. The screen should look like this:
+
+ 
+
+7. Add CockroachDB's starter [alerting rules](https://github.com/cockroachdb/cockroach/blob/master/cloud/kubernetes/prometheus/alert-rules.yaml):
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl apply \
+ -f https://raw.githubusercontent.com/cockroachdb/cockroach/master/cloud/kubernetes/prometheus/alert-rules.yaml
+ ~~~
+
+ ~~~
+ prometheusrule.monitoring.coreos.com/prometheus-cockroachdb-rules created
+ ~~~
+
+8. Ensure that the rules are visible to Prometheus by opening http://localhost:9090/rules. The screen should look like this:
+
+ 
+
+9. Verify that the `TestAlertManager` example alert is firing by opening http://localhost:9090/alerts. The screen should look like this:
+
+ 
+
+10. To remove the example alert:
+
+ 1. Use the `kubectl edit` command to open the rules for editing:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl edit prometheusrules prometheus-cockroachdb-rules
+ ~~~
+
+ 2. Remove the `dummy.rules` block and save the file:
+
+ ~~~
+ - name: rules/dummy.rules
+ rules:
+ - alert: TestAlertManager
+ expr: vector(1)
+ ~~~
diff --git a/_includes/v20.2/orchestration/kubernetes-remove-nodes-insecure.md b/_includes/v20.2/orchestration/kubernetes-remove-nodes-insecure.md
new file mode 100644
index 00000000000..cf1eaeea910
--- /dev/null
+++ b/_includes/v20.2/orchestration/kubernetes-remove-nodes-insecure.md
@@ -0,0 +1,130 @@
+To safely remove a node from your cluster, you must first decommission the node and only then adjust the `spec.replicas` value of your StatefulSet configuration to permanently remove it. This sequence is important because the decommissioning process lets a node finish in-flight requests, rejects any new requests, and transfers all range replicas and range leases off the node.
+
+{{site.data.alerts.callout_danger}}
+If you remove nodes without first telling CockroachDB to decommission them, you may cause data or even cluster unavailability. For more details about how this works and what to consider before removing nodes, see [Decommission Nodes](remove-nodes.html).
+{{site.data.alerts.end}}
+
+1. Launch a temporary interactive pod and use the `cockroach node status` command to get the internal IDs of nodes:
+
+ 
+
+5. Finish the upgrade.
+
+ {{site.data.alerts.callout_info}}
+ This step is relevant only when upgrading from v20.1.x to v20.2. For upgrades within the v20.2.x series, skip this step.
+ {{site.data.alerts.end}}
+
+ If you disabled auto-finalization in step 1 above, monitor the stability and performance of your cluster for as long as you require to feel comfortable with the upgrade (generally at least a day). If during this time you decide to roll back the upgrade, repeat the rolling restart procedure with the old binary.
+
+ Once you are satisfied with the new version, re-enable auto-finalization:
+
+ {% if page.secure == true %}
+
+ 1. Get a shell into the pod with the `cockroach` binary created earlier and start the CockroachDB [built-in SQL client](cockroach-sql.html):
+
+ When using `minikube`, persistent volumes are external temporary directories that endure until they are manually deleted or until the entire Kubernetes cluster is deleted. +[persistent volume claim](http://kubernetes.io/docs/user-guide/persistent-volumes/#persistentvolumeclaims) | When pods are created (one per CockroachDB node), each pod will request a persistent volume claim to “claim” durable storage for its node. + +## Step 1. Start Kubernetes + +1. Follow Kubernetes' [documentation](https://kubernetes.io/docs/tasks/tools/install-minikube/) to install `minikube`, the tool used to run Kubernetes locally, for your OS. This includes installing a hypervisor and `kubectl`, the command-line tool used to manage Kubernetes from your local workstation. + + {{site.data.alerts.callout_info}}Make sure you install
minikube version 0.21.0 or later. Earlier versions do not include a Kubernetes server that supports the maxUnavailability field and PodDisruptionBudget resource type used in the CockroachDB StatefulSet configuration.{{site.data.alerts.end}}
+
+2. Start a local Kubernetes cluster:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ minikube start
+ ~~~
diff --git a/_includes/v20.2/orchestration/monitor-cluster.md b/_includes/v20.2/orchestration/monitor-cluster.md
new file mode 100644
index 00000000000..16914b30ca3
--- /dev/null
+++ b/_includes/v20.2/orchestration/monitor-cluster.md
@@ -0,0 +1,69 @@
+To access the cluster's [Admin UI](admin-ui-overview.html):
+
+{% if page.secure == true %}
+
+1. On secure clusters, [certain pages of the Admin UI](admin-ui-overview.html#admin-ui-access) can only be accessed by `admin` users.
+
+ Get a shell into the pod and start the CockroachDB [built-in SQL client](cockroach-sql.html):
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl exec -it cockroachdb-client-secure \
+ -- ./cockroach sql \
+ --certs-dir=/cockroach-certs \
+ --host=cockroachdb-public
+ ~~~
+
+1. Assign `roach` to the `admin` role (you only need to do this once):
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > GRANT admin TO roach;
+ ~~~
+
+1. Exit the SQL shell and pod:
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > \q
+ ~~~
+
+{% endif %}
+
+1. In a new terminal window, port-forward from your local machine to one of the pods:
+
+ port-forward command must be run on the same machine as the web browser in which you want to view the Admin UI. If you have been running these commands from a cloud instance or other non-local shell, you will not be able to view the UI without configuring kubectl locally and running the above port-forward command on your local machine.{{site.data.alerts.end}}
+
+{% if page.secure == true %}
+
+1. Go to https://localhost:8080 and log in with the username and password you created earlier.
+
+ {% include {{ page.version.version }}/misc/chrome-localhost.md %}
+
+{% else %}
+
+1. Go to http://localhost:8080.
+
+{% endif %}
+
+1. In the UI, verify that the cluster is running as expected:
+ - Click **View nodes list** on the right to ensure that all nodes successfully joined the cluster.
+ - Click the **Databases** tab on the left to verify that `bank` is listed.
diff --git a/_includes/v20.2/orchestration/start-cockroachdb-helm-insecure.md b/_includes/v20.2/orchestration/start-cockroachdb-helm-insecure.md
new file mode 100644
index 00000000000..35ca5d4ea70
--- /dev/null
+++ b/_includes/v20.2/orchestration/start-cockroachdb-helm-insecure.md
@@ -0,0 +1,94 @@
+1. [Install the Helm client](https://helm.sh/docs/intro/install) (version 3.0 or higher) and add the official `stable` chart repository:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ helm repo add stable https://kubernetes-charts.storage.googleapis.com
+ ~~~
+
+ ~~~
+ "stable" has been added to your repositories
+ ~~~
+
+2. Update your Helm chart repositories to ensure that you're using the [latest CockroachDB chart](https://github.com/helm/charts/blob/master/stable/cockroachdb/Chart.yaml):
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ helm repo update
+ ~~~
+
+3. Modify our Helm chart's [`values.yaml`](https://github.com/helm/charts/blob/master/stable/cockroachdb/values.yaml) parameters for your deployment scenario.
+
+ Create a `my-values.yaml` file to override the defaults in `values.yaml`, substituting your own values in this example based on the guidelines below.
+
+ {% include copy-clipboard.html %}
+ ~~~
+ statefulset:
+ resources:
+ limits:
+ memory: "8Gi"
+ requests:
+ memory: "8Gi"
+ conf:
+ cache: "2Gi"
+ max-sql-memory: "2Gi"
+ ~~~
+
+ 1. To avoid running out of memory when CockroachDB is not the only pod on a Kubernetes node, you *must* set memory limits explicitly. This is because CockroachDB does not detect the amount of memory allocated to its pod when run in Kubernetes. We recommend setting `conf.cache` and `conf.max-sql-memory` each to 1/4 of the `memory` allocation specified in `statefulset.resources.requests` and `statefulset.resources.limits`.
+
+ {{site.data.alerts.callout_success}}
+ For example, if you are allocating 8Gi of `memory` to each CockroachDB node, allocate 2Gi to `cache` and 2Gi to `max-sql-memory`.
+ {{site.data.alerts.end}}
+
+ 2. You may want to modify `storage.persistentVolume.size` and `storage.persistentVolume.storageClass` for your use case. This chart defaults to 100Gi of disk space per pod. For more details on customizing disks for performance, see [these instructions](kubernetes-performance.html#disk-type).
+
+ {{site.data.alerts.callout_info}}
+ If necessary, you can [expand disk size](orchestrate-cockroachdb-with-kubernetes.html#expand-disk-size) after the cluster is live.
+ {{site.data.alerts.end}}
+
+4. Install the CockroachDB Helm chart.
+
+ Provide a "release" name to identify and track this particular deployment of the chart, and override the default values with those in `my-values.yaml`.
+
+ {{site.data.alerts.callout_info}}
+ This tutorial uses `my-release` as the release name. If you use a different value, be sure to adjust the release name in subsequent commands. Also be sure to start and end the name with an alphanumeric character and otherwise use lowercase alphanumeric characters, `-`, or `.` so as to comply with [CSR naming requirements](orchestrate-cockroachdb-with-kubernetes.html#csr-names).
+ {{site.data.alerts.end}}
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ helm install my-release --values my-values.yaml stable/cockroachdb
+ ~~~
+
+ Behind the scenes, this command uses our `cockroachdb-statefulset.yaml` file to create the StatefulSet that automatically creates 3 pods, each with a CockroachDB node running inside it, where each pod has distinguishable network identity and always binds back to the same persistent storage on restart.
+
+5. Confirm that CockroachDB cluster initialization has completed successfully, with the pods for CockroachDB showing `1/1` under `READY` and the pod for initialization showing `COMPLETED` under `STATUS`:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl get pods
+ ~~~
+
+ ~~~
+ NAME READY STATUS RESTARTS AGE
+ my-release-cockroachdb-0 1/1 Running 0 8m
+ my-release-cockroachdb-1 1/1 Running 0 8m
+ my-release-cockroachdb-2 1/1 Running 0 8m
+ my-release-cockroachdb-init-hxzsc 0/1 Completed 0 1h
+ ~~~
+
+6. Confirm that the persistent volumes and corresponding claims were created successfully for all three pods:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ kubectl get pv
+ ~~~
+
+ ~~~
+ NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
+ pvc-71019b3a-fc67-11e8-a606-080027ba45e5 100Gi RWO Delete Bound default/datadir-my-release-cockroachdb-0 standard 11m
+ pvc-7108e172-fc67-11e8-a606-080027ba45e5 100Gi RWO Delete Bound default/datadir-my-release-cockroachdb-1 standard 11m
+ pvc-710dcb66-fc67-11e8-a606-080027ba45e5 100Gi RWO Delete Bound default/datadir-my-release-cockroachdb-2 standard 11m
+ ~~~
+
+{{site.data.alerts.callout_success}}
+The StatefulSet configuration sets all CockroachDB nodes to log to `stderr`, so if you ever need access to a pod/node's logs to troubleshoot, use `kubectl logs 
+
+To check at a more granular level, SSH to one of the instances not running CockroachDB and run the `SHOW EXPERIMENTAL_RANGES` statement on the `vehicles` table:
+
+{% include copy-clipboard.html %}
+~~~ shell
+$ cockroach sql \
+{{page.certs}} \
+--host= \
+--database=movr \
+--execute="SELECT * FROM \
+[SHOW EXPERIMENTAL_RANGES FROM TABLE vehicles] \
+WHERE \"start_key\" IS NOT NULL \
+ AND \"start_key\" NOT LIKE '%Prefix%';"
+~~~
+
+~~~
+ start_key | end_key | range_id | replicas | lease_holder
++------------------+----------------------------+----------+----------+--------------+
+ /"boston" | /"boston"/PrefixEnd | 105 | {1,2,3} | 3
+ /"los angeles" | /"los angeles"/PrefixEnd | 121 | {7,8,9} | 8
+ /"new york" | /"new york"/PrefixEnd | 101 | {1,2,3} | 3
+ /"san francisco" | /"san francisco"/PrefixEnd | 117 | {7,8,9} | 8
+ /"seattle" | /"seattle"/PrefixEnd | 113 | {4,5,6} | 5
+ /"washington dc" | /"washington dc"/PrefixEnd | 109 | {1,2,3} | 1
+(6 rows)
+~~~
+
+For reference, here's how the nodes map to zones:
+
+Node IDs | Zone
+---------|-----
+1-3 | `us-east1-b` (South Carolina)
+4-6 | `us-west1-a` (Oregon)
+7-9 | `us-west2-a` (Los Angeles)
+
+We can see that, after partitioning, the replicas for New York, Boston, and Washington DC are located on nodes 1-3 in `us-east1-b`, replicas for Seattle are located on nodes 4-6 in `us-west1-a`, and replicas for San Francisco and Los Angeles are located on nodes 7-9 in `us-west2-a`.
diff --git a/_includes/v20.2/performance/check-rebalancing.md b/_includes/v20.2/performance/check-rebalancing.md
new file mode 100644
index 00000000000..fff329ec7cc
--- /dev/null
+++ b/_includes/v20.2/performance/check-rebalancing.md
@@ -0,0 +1,33 @@
+Since you started each node with the `--locality` flag set to its GCE zone, over the next minutes, CockroachDB will rebalance data evenly across the zones.
+
+To check this, access the Admin UI on any node at `
+
+For reference, here's how the nodes map to zones:
+
+Node IDs | Zone
+---------|-----
+1-3 | `us-east1-b` (South Carolina)
+4-6 | `us-west1-a` (Oregon)
+7-9 | `us-west2-a` (Los Angeles)
+
+To verify even balancing at range level, SSH to one of the instances not running CockroachDB and run the `SHOW EXPERIMENTAL_RANGES` statement:
+
+{% include copy-clipboard.html %}
+~~~ shell
+$ cockroach sql \
+{{page.certs}} \
+--host= \
+--database=movr \
+--execute="SHOW EXPERIMENTAL_RANGES FROM TABLE vehicles;"
+~~~
+
+~~~
+ start_key | end_key | range_id | replicas | lease_holder
++-----------+---------+----------+----------+--------------+
+ NULL | NULL | 33 | {3,4,7} | 7
+(1 row)
+~~~
+
+In this case, we can see that, for the single range containing `vehicles` data, one replica is in each zone, and the leaseholder is in the `us-west2-a` zone.
diff --git a/_includes/v20.2/performance/configure-network.md b/_includes/v20.2/performance/configure-network.md
new file mode 100644
index 00000000000..7cd3e3cbcc6
--- /dev/null
+++ b/_includes/v20.2/performance/configure-network.md
@@ -0,0 +1,18 @@
+CockroachDB requires TCP communication on two ports:
+
+- **26257** (`tcp:26257`) for inter-node communication (i.e., working as a cluster)
+- **8080** (`tcp:8080`) for accessing the Admin UI
+
+Since GCE instances communicate on their internal IP addresses by default, you do not need to take any action to enable inter-node communication. However, to access the Admin UI from your local network, you must [create a firewall rule for your project](https://cloud.google.com/vpc/docs/using-firewalls):
+
+Field | Recommended Value
+------|------------------
+Name | **cockroachweb**
+Source filter | IP ranges
+Source IP ranges | Your local network's IP ranges
+Allowed protocols | **tcp:8080**
+Target tags | `cockroachdb`
+
+{{site.data.alerts.callout_info}}
+The **tag** feature will let you easily apply the rule to your instances.
+{{site.data.alerts.end}}
diff --git a/_includes/v20.2/performance/import-movr.md b/_includes/v20.2/performance/import-movr.md
new file mode 100644
index 00000000000..a0fe2dc710a
--- /dev/null
+++ b/_includes/v20.2/performance/import-movr.md
@@ -0,0 +1,160 @@
+Now you'll import Movr data representing users, vehicles, and rides in 3 eastern US cities (New York, Boston, and Washington DC) and 3 western US cities (Los Angeles, San Francisco, and Seattle).
+
+1. Still on the fourth instance, start the [built-in SQL shell](cockroach-sql.html), pointing it at one of the CockroachDB nodes:
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ cockroach sql {{page.certs}} --host=
+ ~~~
+
+2. Create the `movr` database and set it as the default:
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > CREATE DATABASE movr;
+ ~~~
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > SET DATABASE = movr;
+ ~~~
+
+3. Use the [`IMPORT`](import.html) statement to create and populate the `users`, `vehicles,` and `rides` tables:
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > IMPORT TABLE users (
+ id UUID NOT NULL,
+ city STRING NOT NULL,
+ name STRING NULL,
+ address STRING NULL,
+ credit_card STRING NULL,
+ CONSTRAINT "primary" PRIMARY KEY (city ASC, id ASC)
+ )
+ CSV DATA (
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/users/n1.0.csv'
+ );
+ ~~~
+
+ ~~~
+ job_id | status | fraction_completed | rows | index_entries | system_records | bytes
+ +--------------------+-----------+--------------------+------+---------------+----------------+--------+
+ 390345990764396545 | succeeded | 1 | 1998 | 0 | 0 | 241052
+ (1 row)
+
+ Time: 2.882582355s
+ ~~~
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > IMPORT TABLE vehicles (
+ id UUID NOT NULL,
+ city STRING NOT NULL,
+ type STRING NULL,
+ owner_id UUID NULL,
+ creation_time TIMESTAMP NULL,
+ status STRING NULL,
+ ext JSON NULL,
+ mycol STRING NULL,
+ CONSTRAINT "primary" PRIMARY KEY (city ASC, id ASC),
+ INDEX vehicles_auto_index_fk_city_ref_users (city ASC, owner_id ASC)
+ )
+ CSV DATA (
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/vehicles/n1.0.csv'
+ );
+ ~~~
+
+ ~~~
+ job_id | status | fraction_completed | rows | index_entries | system_records | bytes
+ +--------------------+-----------+--------------------+-------+---------------+----------------+---------+
+ 390346109887250433 | succeeded | 1 | 19998 | 19998 | 0 | 3558767
+ (1 row)
+
+ Time: 5.803841493s
+ ~~~
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > IMPORT TABLE rides (
+ id UUID NOT NULL,
+ city STRING NOT NULL,
+ vehicle_city STRING NULL,
+ rider_id UUID NULL,
+ vehicle_id UUID NULL,
+ start_address STRING NULL,
+ end_address STRING NULL,
+ start_time TIMESTAMP NULL,
+ end_time TIMESTAMP NULL,
+ revenue DECIMAL(10,2) NULL,
+ CONSTRAINT "primary" PRIMARY KEY (city ASC, id ASC),
+ INDEX rides_auto_index_fk_city_ref_users (city ASC, rider_id ASC),
+ INDEX rides_auto_index_fk_vehicle_city_ref_vehicles (vehicle_city ASC, vehicle_id ASC),
+ CONSTRAINT check_vehicle_city_city CHECK (vehicle_city = city)
+ )
+ CSV DATA (
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.0.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.1.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.2.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.3.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.4.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.5.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.6.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.7.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.8.csv',
+ 'https://s3-us-west-1.amazonaws.com/cockroachdb-movr/datasets/perf-tuning/rides/n1.9.csv'
+ );
+ ~~~
+
+ ~~~
+ job_id | status | fraction_completed | rows | index_entries | system_records | bytes
+ +--------------------+-----------+--------------------+--------+---------------+----------------+-----------+
+ 390346325693792257 | succeeded | 1 | 999996 | 1999992 | 0 | 339741841
+ (1 row)
+
+ Time: 44.620371424s
+ ~~~
+
+ {{site.data.alerts.callout_success}}
+ You can observe the progress of imports as well as all schema change operations (e.g., adding secondary indexes) on the [**Jobs** page](admin-ui-jobs-page.html) of the Admin UI.
+ {{site.data.alerts.end}}
+
+7. Logically, there should be a number of [foreign key](foreign-key.html) relationships between the tables:
+
+ Referencing columns | Referenced columns
+ --------------------|-------------------
+ `vehicles.city`, `vehicles.owner_id` | `users.city`, `users.id`
+ `rides.city`, `rides.rider_id` | `users.city`, `users.id`
+ `rides.vehicle_city`, `rides.vehicle_id` | `vehicles.city`, `vehicles.id`
+
+ As mentioned earlier, it wasn't possible to put these relationships in place during `IMPORT`, but it was possible to create the required secondary indexes. Now, let's add the foreign key constraints:
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > ALTER TABLE vehicles
+ ADD CONSTRAINT fk_city_ref_users
+ FOREIGN KEY (city, owner_id)
+ REFERENCES users (city, id);
+ ~~~
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > ALTER TABLE rides
+ ADD CONSTRAINT fk_city_ref_users
+ FOREIGN KEY (city, rider_id)
+ REFERENCES users (city, id);
+ ~~~
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > ALTER TABLE rides
+ ADD CONSTRAINT fk_vehicle_city_ref_vehicles
+ FOREIGN KEY (vehicle_city, vehicle_id)
+ REFERENCES vehicles (city, id);
+ ~~~
+
+4. Exit the built-in SQL shell:
+
+ {% include copy-clipboard.html %}
+ ~~~ sql
+ > \q
+ ~~~
diff --git a/_includes/v20.2/performance/overview.md b/_includes/v20.2/performance/overview.md
new file mode 100644
index 00000000000..8707c1daf10
--- /dev/null
+++ b/_includes/v20.2/performance/overview.md
@@ -0,0 +1,38 @@
+### Topology
+
+You'll start with a 3-node CockroachDB cluster in a single Google Compute Engine (GCE) zone, with an extra instance for running a client application workload:
+
+
+
+{{site.data.alerts.callout_info}}
+Within a single GCE zone, network latency between instances should be sub-millisecond.
+{{site.data.alerts.end}}
+
+You'll then scale the cluster to 9 nodes running across 3 GCE regions, with an extra instance in each region for a client application workload:
+
+
+
+{{site.data.alerts.callout_info}}
+Network latencies will increase with geographic distance between nodes. You can observe this in the [Network Latency page](admin-ui-network-latency-page.html) of the Admin UI.
+{{site.data.alerts.end}}
+
+To reproduce the performance demonstrated in this tutorial:
+
+- For each CockroachDB node, you'll use the [`n1-standard-4`](https://cloud.google.com/compute/docs/machine-types#standard_machine_types) machine type (4 vCPUs, 15 GB memory) with the Ubuntu 16.04 OS image and a [local SSD](https://cloud.google.com/compute/docs/disks/#localssds) disk.
+- For running the client application workload, you'll use smaller instances, such as `n1-standard-1`.
+
+### Schema
+
+Your schema and data will be based on our open-source, fictional peer-to-peer vehicle-sharing application, [MovR](movr.html).
+
+
+
+A few notes about the schema:
+
+- There are just three self-explanatory tables: In essence, `users` represents the people registered for the service, `vehicles` represents the pool of vehicles for the service, and `rides` represents when and where users have participated.
+- Each table has a composite primary key, with `city` being first in the key. Although not necessary initially in the single-region deployment, once you scale the cluster to multiple regions, these compound primary keys will enable you to [geo-partition data at the row level](partitioning.html#partition-using-primary-key) by `city`. As such, this tutorial demonstrates a schema designed for future scaling.
+- The [`IMPORT`](import.html) feature you'll use to import the data does not support foreign keys, so you'll import the data without [foreign key constraints](foreign-key.html). However, the import will create the secondary indexes required to add the foreign keys later.
+
+### Important concepts
+
+To understand the techniques in this tutorial, and to be able to apply them in your own scenarios, it's important to first understand [how reads and writes work in CockroachDB](architecture/reads-and-writes-overview.html). Review that document before getting started here.
diff --git a/_includes/v20.2/performance/partition-by-city.md b/_includes/v20.2/performance/partition-by-city.md
new file mode 100644
index 00000000000..d1c4df6e6ec
--- /dev/null
+++ b/_includes/v20.2/performance/partition-by-city.md
@@ -0,0 +1,419 @@
+For this service, the most effective technique for improving read and write latency is to [geo-partition](partitioning.html) the data by city. In essence, this means changing the way data is mapped to ranges. Instead of an entire table and its indexes mapping to a specific range or set of ranges, all rows in the table and its indexes with a given city will map to a range or set of ranges. Once ranges are defined in this way, we can then use the [replication zone](configure-replication-zones.html) feature to pin partitions to specific locations, ensuring that read and write requests from users in a specific city do not have to leave that region.
+
+1. Partitioning is an enterprise feature, so start off by [registering for a 30-day trial license](https://www.cockroachlabs.com/get-cockroachdb/).
+
+2. Once you've received the trial license, SSH to any node in your cluster and [apply the license](enterprise-licensing.html#set-a-license):
+
+ {% include copy-clipboard.html %}
+ ~~~ shell
+ $ cockroach sql \
+ {{page.certs}} \
+ --host= \
+ --execute="SET CLUSTER SETTING cluster.organization = 'This value must route to an IP address the node is listening on (with `--listen-addr` unspecified, the node listens on all IP addresses).
In some networking scenarios, you may need to use `--advertise-addr` and/or `--listen-addr` differently. For more details, see [Networking](recommended-production-settings.html#networking). +`--join` | Identifies the address of 3-5 of the initial nodes of the cluster. These addresses should match the addresses that the target nodes are advertising. diff --git a/_includes/v20.2/prod-deployment/backup.sh b/_includes/v20.2/prod-deployment/backup.sh new file mode 100644 index 00000000000..b1621eeb96a --- /dev/null +++ b/_includes/v20.2/prod-deployment/backup.sh @@ -0,0 +1,21 @@ +#!/bin/bash + +set -euo pipefail + +# This script creates full backups when run on the configured +# day of the week and incremental backups when run on other days, and tracks +# recently created backups in a file to pass as the base for incremental backups. + +what="" # Leave empty for full cluster backup, or add "DATABASE database_name" to backup a database. +base="
+
+
+
+
+
+
+
+
+
+
+
+This value must route to an IP address the node is listening on (with `--listen-addr` unspecified, the node listens on all IP addresses).
In some networking scenarios, you may need to use `--advertise-addr` and/or `--listen-addr` differently. For more details, see [Networking](recommended-production-settings.html#networking). + `--join` | Identifies the address of 3-5 of the initial nodes of the cluster. These addresses should match the addresses that the target nodes are advertising. + `--cache`
`--max-sql-memory` | Increases the node's cache size to 25% of available system memory to improve read performance. The capacity for in-memory SQL processing defaults to 25% of system memory but can be raised, if necessary, to increase the number of simultaneous client connections allowed by the node as well as the node's capacity for in-memory processing of rows when using `ORDER BY`, `GROUP BY`, `DISTINCT`, joins, and window functions. For more details, see [Cache and SQL Memory Size](recommended-production-settings.html#cache-and-sql-memory-size). + `--background` | Starts the node in the background so you gain control of the terminal to issue more commands. + + When deploying across multiple datacenters, or when there is otherwise high latency between nodes, it is recommended to set `--locality` as well. It is also required to use certain enterprise features. For more details, see [Locality](cockroach-start.html#locality). + + For other flags not explicitly set, the command uses default values. For example, the node stores data in `--store=cockroach-data` and binds Admin UI HTTP requests to `--http-addr=localhost:8080`. To set these options manually, see [Start a Node](cockroach-start.html). + +5. Repeat these steps for each additional node that you want in your cluster. + +
tpcc options, use workload run tpcc --help. For details about other load generators included in workload, use workload run --help.
+
+4. To monitor the load generator's progress, open the [Admin UI](admin-ui-access-and-navigate.html) by pointing a browser to the address in the `admin` field in the standard output of any node on startup.
+
+ Since the load generator is pointed at the load balancer, the connections will be evenly distributed across nodes. To verify this, click **Metrics** on the left, select the **SQL** dashboard, and then check the **SQL Connections** graph. You can use the **Graph** menu to filter the graph for specific nodes.
diff --git a/_includes/v20.2/prod-deployment/insecurecockroachdb.service b/_includes/v20.2/prod-deployment/insecurecockroachdb.service
new file mode 100644
index 00000000000..b027b941009
--- /dev/null
+++ b/_includes/v20.2/prod-deployment/insecurecockroachdb.service
@@ -0,0 +1,16 @@
+[Unit]
+Description=Cockroach Database cluster node
+Requires=network.target
+[Service]
+Type=notify
+WorkingDirectory=/var/lib/cockroach
+ExecStart=/usr/local/bin/cockroach start --insecure --advertise-addr=
+
+
+
+
+
+
+
+
+
+
+
+This value must route to an IP address the node is listening on (with `--listen-addr` unspecified, the node listens on all IP addresses).
In some networking scenarios, you may need to use `--advertise-addr` and/or `--listen-addr` differently. For more details, see [Networking](recommended-production-settings.html#networking). + `--join` | Identifies the address of 3-5 of the initial nodes of the cluster. These addresses should match the addresses that the target nodes are advertising. + `--cache`
`--max-sql-memory` | Increases the node's cache size to 25% of available system memory to improve read performance. The capacity for in-memory SQL processing defaults to 25% of system memory but can be raised, if necessary, to increase the number of simultaneous client connections allowed by the node as well as the node's capacity for in-memory processing of rows when using `ORDER BY`, `GROUP BY`, `DISTINCT`, joins, and window functions. For more details, see [Cache and SQL Memory Size](recommended-production-settings.html#cache-and-sql-memory-size). + `--background` | Starts the node in the background so you gain control of the terminal to issue more commands. + + When deploying across multiple datacenters, or when there is otherwise high latency between nodes, it is recommended to set `--locality` as well. It is also required to use certain enterprise features. For more details, see [Locality](cockroach-start.html#locality). + + For other flags not explicitly set, the command uses default values. For example, the node stores data in `--store=cockroach-data` and binds Admin UI HTTP requests to `--http-addr=
tpcc options, use workload run tpcc --help. For details about other load generators included in workload, use workload run --help.
+
+5. To monitor the load generator's progress, open the [Admin UI](admin-ui-access-and-navigate.html) by pointing a browser to the address in the `admin` field in the standard output of any node on startup.
+
+ For each user who should have access to the Admin UI for a secure cluster, [create a user with a password](create-user.html#create-a-user-with-a-password) and [assign them to an `admin` role if necessary](admin-ui-overview.html#admin-ui-access). On accessing the Admin UI, the users will see a Login screen, where they will need to enter their usernames and passwords.
+
+ Since the load generator is pointed at the load balancer, the connections will be evenly distributed across nodes. To verify this, click **Metrics** on the left, select the **SQL** dashboard, and then check the **SQL Connections** graph. You can use the **Graph** menu to filter the graph for specific nodes.
diff --git a/_includes/v20.2/prod-deployment/securecockroachdb.service b/_includes/v20.2/prod-deployment/securecockroachdb.service
new file mode 100644
index 00000000000..39054cf2e1d
--- /dev/null
+++ b/_includes/v20.2/prod-deployment/securecockroachdb.service
@@ -0,0 +1,16 @@
+[Unit]
+Description=Cockroach Database cluster node
+Requires=network.target
+[Service]
+Type=notify
+WorkingDirectory=/var/lib/cockroach
+ExecStart=/usr/local/bin/cockroach start --certs-dir=certs --advertise-addr=| Function → Returns | Description |
|---|---|
array_agg(arg1: bool) → bool[] | Aggregates the selected values into an array. + |
array_agg(arg1: bytes) → bytes[] | Aggregates the selected values into an array. + |
array_agg(arg1: date) → date[] | Aggregates the selected values into an array. + |
array_agg(arg1: decimal) → decimal[] | Aggregates the selected values into an array. + |
array_agg(arg1: float) → float[] | Aggregates the selected values into an array. + |
array_agg(arg1: inet) → inet[] | Aggregates the selected values into an array. + |
array_agg(arg1: int) → int[] | Aggregates the selected values into an array. + |
array_agg(arg1: interval) → interval[] | Aggregates the selected values into an array. + |
array_agg(arg1: string) → string[] | Aggregates the selected values into an array. + |
array_agg(arg1: time) → time[] | Aggregates the selected values into an array. + |
array_agg(arg1: timestamp) → timestamp[] | Aggregates the selected values into an array. + |
array_agg(arg1: timestamptz) → timestamptz[] | Aggregates the selected values into an array. + |
array_agg(arg1: uuid) → uuid[] | Aggregates the selected values into an array. + |
array_agg(arg1: oid) → oid[] | Aggregates the selected values into an array. + |
array_agg(arg1: timetz) → timetz[] | Aggregates the selected values into an array. + |
array_agg(arg1: varbit) → varbit[] | Aggregates the selected values into an array. + |
avg(arg1: decimal) → decimal | Calculates the average of the selected values. + |
avg(arg1: float) → float | Calculates the average of the selected values. + |
avg(arg1: int) → decimal | Calculates the average of the selected values. + |
avg(arg1: interval) → interval | Calculates the average of the selected values. + |
bit_and(arg1: int) → int | Calculates the bitwise AND of all non-null input values, or null if none. + |
bit_and(arg1: varbit) → varbit | Calculates the bitwise AND of all non-null input values, or null if none. + |
bit_or(arg1: int) → int | Calculates the bitwise OR of all non-null input values, or null if none. + |
bit_or(arg1: varbit) → varbit | Calculates the bitwise OR of all non-null input values, or null if none. + |
bool_and(arg1: bool) → bool | Calculates the boolean value of |
bool_or(arg1: bool) → bool | Calculates the boolean value of |
concat_agg(arg1: bytes) → bytes | Concatenates all selected values. + |
concat_agg(arg1: string) → string | Concatenates all selected values. + |
corr(arg1: float, arg2: float) → float | Calculates the correlation coefficient of the selected values. + |
corr(arg1: float, arg2: int) → float | Calculates the correlation coefficient of the selected values. + |
corr(arg1: int, arg2: float) → float | Calculates the correlation coefficient of the selected values. + |
corr(arg1: int, arg2: int) → float | Calculates the correlation coefficient of the selected values. + |
count(arg1: anyelement) → int | Calculates the number of selected elements. + |
count_rows() → int | Calculates the number of rows. + |
every(arg1: bool) → bool | Calculates the boolean value of |
json_agg(arg1: anyelement) → jsonb | Aggregates values as a JSON or JSONB array. + |
jsonb_agg(arg1: anyelement) → jsonb | Aggregates values as a JSON or JSONB array. + |
max(arg1: bool) → bool | Identifies the maximum selected value. + |
max(arg1: bytes) → bytes | Identifies the maximum selected value. + |
max(arg1: date) → date | Identifies the maximum selected value. + |
max(arg1: decimal) → decimal | Identifies the maximum selected value. + |
max(arg1: float) → float | Identifies the maximum selected value. + |
max(arg1: inet) → inet | Identifies the maximum selected value. + |
max(arg1: int) → int | Identifies the maximum selected value. + |
max(arg1: interval) → interval | Identifies the maximum selected value. + |
max(arg1: string) → string | Identifies the maximum selected value. + |
max(arg1: time) → time | Identifies the maximum selected value. + |
max(arg1: timestamp) → timestamp | Identifies the maximum selected value. + |
max(arg1: timestamptz) → timestamptz | Identifies the maximum selected value. + |
max(arg1: uuid) → uuid | Identifies the maximum selected value. + |
max(arg1: jsonb) → jsonb | Identifies the maximum selected value. + |
max(arg1: oid) → oid | Identifies the maximum selected value. + |
max(arg1: timetz) → timetz | Identifies the maximum selected value. + |
max(arg1: varbit) → varbit | Identifies the maximum selected value. + |
min(arg1: bool) → bool | Identifies the minimum selected value. + |
min(arg1: bytes) → bytes | Identifies the minimum selected value. + |
min(arg1: date) → date | Identifies the minimum selected value. + |
min(arg1: decimal) → decimal | Identifies the minimum selected value. + |
min(arg1: float) → float | Identifies the minimum selected value. + |
min(arg1: inet) → inet | Identifies the minimum selected value. + |
min(arg1: int) → int | Identifies the minimum selected value. + |
min(arg1: interval) → interval | Identifies the minimum selected value. + |
min(arg1: string) → string | Identifies the minimum selected value. + |
min(arg1: time) → time | Identifies the minimum selected value. + |
min(arg1: timestamp) → timestamp | Identifies the minimum selected value. + |
min(arg1: timestamptz) → timestamptz | Identifies the minimum selected value. + |
min(arg1: uuid) → uuid | Identifies the minimum selected value. + |
min(arg1: jsonb) → jsonb | Identifies the minimum selected value. + |
min(arg1: oid) → oid | Identifies the minimum selected value. + |
min(arg1: timetz) → timetz | Identifies the minimum selected value. + |
min(arg1: varbit) → varbit | Identifies the minimum selected value. + |
sqrdiff(arg1: decimal) → decimal | Calculates the sum of squared differences from the mean of the selected values. + |
sqrdiff(arg1: float) → float | Calculates the sum of squared differences from the mean of the selected values. + |
sqrdiff(arg1: int) → decimal | Calculates the sum of squared differences from the mean of the selected values. + |
stddev(arg1: decimal) → decimal | Calculates the standard deviation of the selected values. + |
stddev(arg1: float) → float | Calculates the standard deviation of the selected values. + |
stddev(arg1: int) → decimal | Calculates the standard deviation of the selected values. + |
stddev_samp(arg1: decimal) → decimal | Calculates the standard deviation of the selected values. + |
stddev_samp(arg1: float) → float | Calculates the standard deviation of the selected values. + |
stddev_samp(arg1: int) → decimal | Calculates the standard deviation of the selected values. + |
string_agg(arg1: bytes, arg2: bytes) → bytes | Concatenates all selected values using the provided delimiter. + |
string_agg(arg1: string, arg2: string) → string | Concatenates all selected values using the provided delimiter. + |
sum(arg1: decimal) → decimal | Calculates the sum of the selected values. + |
sum(arg1: float) → float | Calculates the sum of the selected values. + |
sum(arg1: int) → decimal | Calculates the sum of the selected values. + |
sum(arg1: interval) → interval | Calculates the sum of the selected values. + |
sum_int(arg1: int) → int | Calculates the sum of the selected values. + |
variance(arg1: decimal) → decimal | Calculates the variance of the selected values. + |
variance(arg1: float) → float | Calculates the variance of the selected values. + |
variance(arg1: int) → decimal | Calculates the variance of the selected values. + |
xor_agg(arg1: bytes) → bytes | Calculates the bitwise XOR of the selected values. + |
xor_agg(arg1: int) → int | Calculates the bitwise XOR of the selected values. + |
**Env Variable:** `COCKROACH_HOST`
**Default:** `localhost:26257` +`--port`
`-p` | The server port to connect to. Note: The port number can also be specified via `--host`.
**Env Variable:** `COCKROACH_PORT`
**Default:** `26257` +`--user`
`-u` | The [SQL user](create-user.html) that will own the client session.
**Env Variable:** `COCKROACH_USER`
**Default:** `root` +`--insecure` | Use an insecure connection.
**Env Variable:** `COCKROACH_INSECURE`
**Default:** `false` +`--certs-dir` | The path to the [certificate directory](cockroach-cert.html) containing the CA and client certificates and client key.
**Env Variable:** `COCKROACH_CERTS_DIR`
**Default:** `${HOME}/.cockroach-certs/` + `--url` | A [connection URL](connection-parameters.html#connect-using-a-url) to use instead of the other arguments.
**Env Variable:** `COCKROACH_URL`
**Default:** no URL diff --git a/_includes/v20.2/sql/crdb-internal-partitions-example.md b/_includes/v20.2/sql/crdb-internal-partitions-example.md new file mode 100644 index 00000000000..39819038fce --- /dev/null +++ b/_includes/v20.2/sql/crdb-internal-partitions-example.md @@ -0,0 +1,43 @@ +## Querying partitions programmatically + +The `crdb_internal.partitions` internal table contains information about the partitions in your database. In testing, scripting, and other programmatic environments, we recommend querying this table for partition information instead of using the `SHOW PARTITIONS` statement. For example, to get all `us_west` partitions of in your database, you can run the following query: + +{% include copy-clipboard.html %} +~~~ sql +> SELECT * FROM crdb_internal.partitions WHERE name='us_west'; +~~~ + +~~~ + table_id | index_id | parent_name | name | columns | column_names | list_value | range_value | zone_id | subzone_id ++----------+----------+-------------+---------+---------+--------------+-------------------------------------------------+-------------+---------+------------+ + 53 | 1 | NULL | us_west | 1 | city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 0 | 0 + 54 | 1 | NULL | us_west | 1 | city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 54 | 1 + 54 | 2 | NULL | us_west | 1 | city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 54 | 2 + 55 | 1 | NULL | us_west | 1 | city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 55 | 1 + 55 | 2 | NULL | us_west | 1 | city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 55 | 2 + 55 | 3 | NULL | us_west | 1 | vehicle_city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 55 | 3 + 56 | 1 | NULL | us_west | 1 | city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 56 | 1 + 58 | 1 | NULL | us_west | 1 | city | ('seattle'), ('san francisco'), ('los angeles') | NULL | 58 | 1 +(8 rows) +~~~ + +Other internal tables, like `crdb_internal.tables`, include information that could be useful in conjunction with `crdb_internal.partitions`. + +For example, if you want the output for your partitions to include the name of the table and database, you can perform a join of the two tables: + +{% include copy-clipboard.html %} +~~~ sql +> SELECT + partitions.name AS partition_name, column_names, list_value, tables.name AS table_name, database_name + FROM crdb_internal.partitions JOIN crdb_internal.tables ON partitions.table_id=tables.table_id + WHERE tables.name='users'; +~~~ + +~~~ + partition_name | column_names | list_value | table_name | database_name ++----------------+--------------+-------------------------------------------------+------------+---------------+ + us_west | city | ('seattle'), ('san francisco'), ('los angeles') | users | movr + us_east | city | ('new york'), ('boston'), ('washington dc') | users | movr + europe_west | city | ('amsterdam'), ('paris'), ('rome') | users | movr +(3 rows) +~~~ diff --git a/_includes/v20.2/sql/crdb-internal-partitions.md b/_includes/v20.2/sql/crdb-internal-partitions.md new file mode 100644 index 00000000000..ebab5abe4ed --- /dev/null +++ b/_includes/v20.2/sql/crdb-internal-partitions.md @@ -0,0 +1,3 @@ +{{site.data.alerts.callout_success}} +In testing, scripting, and other programmatic environments, we recommend querying the `crdb_internal.partitions` internal table for partition information instead of using the `SHOW PARTITIONS` statement. For more information, see [Querying partitions programmatically](show-partitions.html#querying-partitions-programmatically). +{{site.data.alerts.end}} diff --git a/_includes/v20.2/sql/diagrams/add_column.html b/_includes/v20.2/sql/diagrams/add_column.html new file mode 100644 index 00000000000..f59fd135d0e --- /dev/null +++ b/_includes/v20.2/sql/diagrams/add_column.html @@ -0,0 +1,52 @@ + diff --git a/_includes/v20.2/sql/diagrams/add_constraint.html b/_includes/v20.2/sql/diagrams/add_constraint.html new file mode 100644 index 00000000000..a8f3b1c9c61 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/add_constraint.html @@ -0,0 +1,38 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_column.html b/_includes/v20.2/sql/diagrams/alter_column.html new file mode 100644 index 00000000000..538c7895cd9 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_column.html @@ -0,0 +1,90 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_index_partition_by.html b/_includes/v20.2/sql/diagrams/alter_index_partition_by.html new file mode 100644 index 00000000000..55136f4ad23 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_index_partition_by.html @@ -0,0 +1,72 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_primary_key.html b/_includes/v20.2/sql/diagrams/alter_primary_key.html new file mode 100644 index 00000000000..5996d6b8681 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_primary_key.html @@ -0,0 +1,71 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_role.html b/_includes/v20.2/sql/diagrams/alter_role.html new file mode 100644 index 00000000000..6291ec7cca0 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_role.html @@ -0,0 +1,29 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_sequence_options.html b/_includes/v20.2/sql/diagrams/alter_sequence_options.html new file mode 100644 index 00000000000..7d3068e25e9 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_sequence_options.html @@ -0,0 +1,72 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_table.html b/_includes/v20.2/sql/diagrams/alter_table.html new file mode 100644 index 00000000000..47092b1ed90 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_table.html @@ -0,0 +1,255 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_table_partition_by.html b/_includes/v20.2/sql/diagrams/alter_table_partition_by.html new file mode 100644 index 00000000000..073c8794394 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_table_partition_by.html @@ -0,0 +1,81 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/alter_type.html b/_includes/v20.2/sql/diagrams/alter_type.html new file mode 100644 index 00000000000..ace962f3b99 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_type.html @@ -0,0 +1,45 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_user_password.html b/_includes/v20.2/sql/diagrams/alter_user_password.html new file mode 100644 index 00000000000..0e014933d1b --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_user_password.html @@ -0,0 +1,31 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_view.html b/_includes/v20.2/sql/diagrams/alter_view.html new file mode 100644 index 00000000000..2e481fa60aa --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_view.html @@ -0,0 +1,36 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/alter_zone_database.html b/_includes/v20.2/sql/diagrams/alter_zone_database.html new file mode 100644 index 00000000000..11eeb471abb --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_zone_database.html @@ -0,0 +1,61 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_zone_index.html b/_includes/v20.2/sql/diagrams/alter_zone_index.html new file mode 100644 index 00000000000..ef64e2314d3 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_zone_index.html @@ -0,0 +1,66 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_zone_partition.html b/_includes/v20.2/sql/diagrams/alter_zone_partition.html new file mode 100644 index 00000000000..69ee2d0eb57 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_zone_partition.html @@ -0,0 +1,84 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_zone_range.html b/_includes/v20.2/sql/diagrams/alter_zone_range.html new file mode 100644 index 00000000000..890dcc7240c --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_zone_range.html @@ -0,0 +1,61 @@ + diff --git a/_includes/v20.2/sql/diagrams/alter_zone_table.html b/_includes/v20.2/sql/diagrams/alter_zone_table.html new file mode 100644 index 00000000000..11c233ebc84 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/alter_zone_table.html @@ -0,0 +1,61 @@ + diff --git a/_includes/v20.2/sql/diagrams/backup.html b/_includes/v20.2/sql/diagrams/backup.html new file mode 100644 index 00000000000..b2e6b998113 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/backup.html @@ -0,0 +1,50 @@ + diff --git a/_includes/v20.2/sql/diagrams/begin_transaction.html b/_includes/v20.2/sql/diagrams/begin_transaction.html new file mode 100644 index 00000000000..7e40de65c56 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/begin_transaction.html @@ -0,0 +1,50 @@ + diff --git a/_includes/v20.2/sql/diagrams/cancel.html b/_includes/v20.2/sql/diagrams/cancel.html new file mode 100644 index 00000000000..5091140ae13 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/cancel.html @@ -0,0 +1,19 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/cancel_job.html b/_includes/v20.2/sql/diagrams/cancel_job.html new file mode 100644 index 00000000000..e8cbeb150fe --- /dev/null +++ b/_includes/v20.2/sql/diagrams/cancel_job.html @@ -0,0 +1,24 @@ + diff --git a/_includes/v20.2/sql/diagrams/cancel_query.html b/_includes/v20.2/sql/diagrams/cancel_query.html new file mode 100644 index 00000000000..612db072eb4 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/cancel_query.html @@ -0,0 +1,36 @@ + diff --git a/_includes/v20.2/sql/diagrams/cancel_session.html b/_includes/v20.2/sql/diagrams/cancel_session.html new file mode 100644 index 00000000000..857f87adb18 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/cancel_session.html @@ -0,0 +1,36 @@ + diff --git a/_includes/v20.2/sql/diagrams/check_column_level.html b/_includes/v20.2/sql/diagrams/check_column_level.html new file mode 100644 index 00000000000..59eec3e3c15 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/check_column_level.html @@ -0,0 +1,70 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/check_table_level.html b/_includes/v20.2/sql/diagrams/check_table_level.html new file mode 100644 index 00000000000..6066d637220 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/check_table_level.html @@ -0,0 +1,60 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/col_qual_list.html b/_includes/v20.2/sql/diagrams/col_qual_list.html new file mode 100644 index 00000000000..290034152a6 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/col_qual_list.html @@ -0,0 +1,115 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/col_qualification.html b/_includes/v20.2/sql/diagrams/col_qualification.html new file mode 100644 index 00000000000..71573b90314 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/col_qualification.html @@ -0,0 +1,154 @@ + diff --git a/_includes/v20.2/sql/diagrams/column_def.html b/_includes/v20.2/sql/diagrams/column_def.html new file mode 100644 index 00000000000..284e8dc5838 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/column_def.html @@ -0,0 +1,23 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/comment.html b/_includes/v20.2/sql/diagrams/comment.html new file mode 100644 index 00000000000..d9933514585 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/comment.html @@ -0,0 +1,53 @@ + diff --git a/_includes/v20.2/sql/diagrams/commit_transaction.html b/_includes/v20.2/sql/diagrams/commit_transaction.html new file mode 100644 index 00000000000..12914f3e1cb --- /dev/null +++ b/_includes/v20.2/sql/diagrams/commit_transaction.html @@ -0,0 +1,17 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/create_as_col_qual_list.html b/_includes/v20.2/sql/diagrams/create_as_col_qual_list.html new file mode 100644 index 00000000000..791829c3ba3 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/create_as_col_qual_list.html @@ -0,0 +1,17 @@ + diff --git a/_includes/v20.2/sql/diagrams/create_as_constraint_def.html b/_includes/v20.2/sql/diagrams/create_as_constraint_def.html new file mode 100644 index 00000000000..3699d2b1833 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/create_as_constraint_def.html @@ -0,0 +1,20 @@ + diff --git a/_includes/v20.2/sql/diagrams/create_changefeed.html b/_includes/v20.2/sql/diagrams/create_changefeed.html new file mode 100644 index 00000000000..82b77b8360e --- /dev/null +++ b/_includes/v20.2/sql/diagrams/create_changefeed.html @@ -0,0 +1,46 @@ + diff --git a/_includes/v20.2/sql/diagrams/create_database.html b/_includes/v20.2/sql/diagrams/create_database.html new file mode 100644 index 00000000000..c621b08e138 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/create_database.html @@ -0,0 +1,42 @@ + \ No newline at end of file diff --git a/_includes/v20.2/sql/diagrams/create_index.html b/_includes/v20.2/sql/diagrams/create_index.html new file mode 100644 index 00000000000..efef77b3721 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/create_index.html @@ -0,0 +1,122 @@ + diff --git a/_includes/v20.2/sql/diagrams/create_inverted_index.html b/_includes/v20.2/sql/diagrams/create_inverted_index.html new file mode 100644 index 00000000000..92de493da93 --- /dev/null +++ b/_includes/v20.2/sql/diagrams/create_inverted_index.html @@ -0,0 +1,99 @@ + diff --git a/_includes/v20.2/sql/diagrams/create_role.html b/_includes/v20.2/sql/diagrams/create_role.html new file mode 100644 index 00000000000..3c9c43dedf3 --- /dev/null +++ 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diff --git a/_includes/v20.2/sql/diagrams/validate_constraint.html b/_includes/v20.2/sql/diagrams/validate_constraint.html
new file mode 100644
index 00000000000..d470d8dd98f
--- /dev/null
+++ b/_includes/v20.2/sql/diagrams/validate_constraint.html
@@ -0,0 +1,36 @@
+
\ No newline at end of file
diff --git a/_includes/v20.2/sql/diagrams/values_clause.html b/_includes/v20.2/sql/diagrams/values_clause.html
new file mode 100644
index 00000000000..34f78e982b4
--- /dev/null
+++ b/_includes/v20.2/sql/diagrams/values_clause.html
@@ -0,0 +1,27 @@
+
diff --git a/_includes/v20.2/sql/diagrams/window_definition.html b/_includes/v20.2/sql/diagrams/window_definition.html
new file mode 100644
index 00000000000..a5335af0ee9
--- /dev/null
+++ b/_includes/v20.2/sql/diagrams/window_definition.html
@@ -0,0 +1,28 @@
+
diff --git a/_includes/v20.2/sql/diagrams/with_clause.html b/_includes/v20.2/sql/diagrams/with_clause.html
new file mode 100644
index 00000000000..be5dfbffb99
--- /dev/null
+++ b/_includes/v20.2/sql/diagrams/with_clause.html
@@ -0,0 +1,53 @@
+
diff --git a/_includes/v20.2/sql/function-special-forms.md b/_includes/v20.2/sql/function-special-forms.md
new file mode 100644
index 00000000000..b9ac987444a
--- /dev/null
+++ b/_includes/v20.2/sql/function-special-forms.md
@@ -0,0 +1,29 @@
+| Special form | Equivalent to |
+|-----------------------------------------------------------|---------------------------------------------|
+| `AT TIME ZONE` | `timezone()` |
+| `CURRENT_CATALOG` | `current_catalog()` |
+| `COLLATION FOR` | `pg_collation_for()` |
+| `CURRENT_DATE` | `current_date()` |
+| `CURRENT_ROLE` | `current_user()` |
+| `CURRENT_SCHEMA` | `current_schema()` |
+| `CURRENT_TIMESTAMP` | `current_timestamp()` |
+| `CURRENT_TIME` | `current_time()` |
+| `CURRENT_USER` | `current_user()` |
+| `EXTRACT(no references
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referenced by: +
-
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- stmt_block +
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referenced by: +
-
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-
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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referenced by: +
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++ +
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referenced by: +
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referenced by: +
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referenced by: +
-
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referenced by: +
-
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referenced by: +
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generated by Railroad Diagram Generator