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CHANGELOG.md

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2.1.1

  • Fix logging with symbolized keys JSON
  • Unknown formats return raw Response::ResultSelt like regular JSON query
  • Added methods statistics, summary, headers and types to Response::ResultSet

2.1.0

  • ClickHouse.connection.insert now returns ClickHouse::Response::Summary object with methods headers, summary, written_rows, written_bytes, etc...
  • ClickHouse.connection.insert(columns: ["id"], values: [1]) now uses JSONCompactEachRow by default (to increase JSON serialization speed)
  • Methods insert_rows and insert_compact added to connection
  • Added ability to pass object directly to insert like: ClickHouse.connection.insert("table", {id: 1}) or ClickHouse.connection.insert("table", [{id: 1})] (for ruby < 3.0 use ClickHouse.connection.insert("table", [{id: 1}], {}))
  • 🔥 Added config option json_serializer (one of ClickHouse::Serializer::JsonSerializer, ClickHouse::Serializer::JsonOjSerializer)
  • 🔥 Added config option symbolize_keys
  • 🔥 Added type serialization for INSERT statements, example below:
CREATE TABLE assets(visible Boolean, tags Array(Nullable(String))) ENGINE Memory
# cache table schema in a class variable
@schema = ClickHouse.connection.table_schema('assets')

# Json each row
ClickHouse.connection.insert('assets', @schema.serialize({'visible' => true, 'tags' => ['ruby']}))

# Json compact
ClickHouse.connection.insert('assets', columns: %w[visible tags]) do |buffer|
  buffer << [
    @schema.serialize_column("visible", true),
    @schema.serialize_column("tags", ['ruby']),
  ]
end

2.0.0

  • Fixed Bigdecimal casting with high precision
  • Added nested type casting like Array(Array(Array(Nullable(T))))
  • Added Map(T1, T2) support
  • Added Tuple(T1, T2) support
  • Added support for Faraday v1 and v2
  • Added support for Oj parser
  • Time types return Time class instead of DateTime for now

1.6.3

  • PR Add option format for insert
  • PR Support X-ClickHouse-Exception-Code header
  • ISSUE Fix parameterized types parsing
  • Added LowCardinality DDL support
  • Fixed body logging with POST queries

1.6.2

  • PR Add rows_before_limit_at_least to ResultSet
  • PR Force JSON format by using "default_format" instead of modifying the query

1.6.1

  • PR call logging middleware when an error is raised

1.6.0

  • PR handle value returned as nil in float and integer types (case of Aggregate Function Combinators)
  • PR Fix Faraday deprecation

1.5.0

  • add support for 'WITH TOTALS' modifier in response
  • send SQL in GET request's body #12
  • add support of 'WITH TOTALS' on a resulting set

1.4.0

  • fix decimal type casting #11

1.3.9

  • add ClickHouse.connection.add_index, ClickHouse.connection.drop_index

1.3.8

  • fix DateTime casting for queries like ClickHouse.connection.select_value('select NOW()')
  • fix resulting set console inspection

1.3.7

  • specify required ruby version #10

1.3.6

  • fix ruby 2.7 warning maybe ** should be added to the call on ClickHouse.connection.databases

1.3.5

  • added ClickHouse.connection.explain("sql")

1.3.4

  • added ClickHouse.type_names(nullable: false)
  • fixed connection#create_table column definitions
  • ClickHouse.add_type now handles Nullable types automatically

1.3.3

  • fix logger typo

1.3.2

  • fix null logger for windows users

1.3.1

1.3.0

  • added support for IPv4/IPv6 types

1.2.7

  • rubocop version bump

1.2.6

  • Datetime64 field type support #3