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Merge 'add PRAGMA statements in COMPAT doc' from Sonny
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What? adding PRAGMA statements in COMPAT doc.
Why?
- each pragma is quite independent of each other.
- make it clear for contribution.
- maybe lower the bar of contributing.

Closes #760
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@penberg
penberg committed Jan 21, 2025
2 parents c27427d + dd436d3 commit db3fa25
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84 changes: 82 additions & 2 deletions COMPAT.md
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Expand Up @@ -7,6 +7,7 @@ This document describes the compatibility of Limbo with SQLite.
- [Features](#features)
- [SQLite query language](#sqlite-query-language)
- [Statements](#statements)
- [PRAGMA Statements](#pragma)
- [Expressions](#expressions)
- [Functions](#functions)
- [SQLite C API](#sqlite-c-api)
Expand Down Expand Up @@ -52,8 +53,6 @@ The current status of Limbo is:
| INDEXED BY | No | |
| INSERT | Partial | |
| ON CONFLICT clause | No | |
| PRAGMA | Partial | |
| PRAGMA cache_size | Yes | |
| REINDEX | No | |
| RELEASE SAVEPOINT | No | |
| REPLACE | No | |
Expand All @@ -78,6 +77,87 @@ The current status of Limbo is:
| VACUUM | No | |
| WITH clause | No | |

#### [PRAGMA](https://www.sqlite.org/pragma.html)


| Statement | Status | Comment |
|----------------------------------|------------|-------------------------------------------------|
| PRAGMA analysis_limit | No | |
| PRAGMA application_id | No | |
| PRAGMA auto_vacuum | No | |
| PRAGMA automatic_index | No | |
| PRAGMA busy_timeout | No | |
| PRAGMA busy_timeout | No | |
| PRAGMA cache_size | Yes | |
| PRAGMA cache_spill | No | |
| PRAGMA case_sensitive_like | Not Needed | deprecated in SQLite |
| PRAGMA cell_size_check | No | |
| PRAGMA checkpoint_fullsync | No | |
| PRAGMA collation_list | No | |
| PRAGMA compile_options | No | |
| PRAGMA count_changes | Not Needed | deprecated in SQLite |
| PRAGMA data_store_directory | Not Needed | deprecated in SQLite |
| PRAGMA data_version | No | |
| PRAGMA database_list | No | |
| PRAGMA default_cache_size | Not Needed | deprecated in SQLite |
| PRAGMA defer_foreign_keys | No | |
| PRAGMA empty_result_callbacks | Not Needed | deprecated in SQLite |
| PRAGMA encoding | No | |
| PRAGMA foreign_key_check | No | |
| PRAGMA foreign_key_list | No | |
| PRAGMA foreign_keys | No | |
| PRAGMA freelist_count | No | |
| PRAGMA full_column_names | Not Needed | deprecated in SQLite |
| PRAGMA fullsync | No | |
| PRAGMA function_list | No | |
| PRAGMA hard_heap_limit | No | |
| PRAGMA ignore_check_constraints | No | |
| PRAGMA incremental_vacuum | No | |
| PRAGMA index_info | No | |
| PRAGMA index_list | No | |
| PRAGMA index_xinfo | No | |
| PRAGMA integrity_check | No | |
| PRAGMA journal_mode | No | |
| PRAGMA journal_size_limit | No | |
| PRAGMA legacy_alter_table | No | |
| PRAGMA legacy_file_format | No | |
| PRAGMA locking_mode | No | |
| PRAGMA max_page_count | No | |
| PRAGMA mmap_size | No | |
| PRAGMA module_list | No | |
| PRAGMA optimize | No | |
| PRAGMA page_count | No | |
| PRAGMA page_size | No | |
| PRAGMA parser_trace | No | |
| PRAGMA pragma_list | No | |
| PRAGMA query_only | No | |
| PRAGMA quick_check | No | |
| PRAGMA read_uncommitted | No | |
| PRAGMA recursive_triggers | No | |
| PRAGMA reverse_unordered_selects | No | |
| PRAGMA schema_version | No | |
| PRAGMA secure_delete | No | |
| PRAGMA short_column_names | Not Needed | deprecated in SQLite |
| PRAGMA shrink_memory | No | |
| PRAGMA soft_heap_limit | No | |
| PRAGMA stats | No | Used for testing in SQLite |
| PRAGMA synchronous | No | |
| PRAGMA table_info | No | |
| PRAGMA table_list | No | |
| PRAGMA table_xinfo | No | |
| PRAGMA temp_store | No | |
| PRAGMA temp_store_directory | Not Needed | deprecated in SQLite |
| PRAGMA threads | No | |
| PRAGMA trusted_schema | No | |
| PRAGMA user_version | No | |
| PRAGMA vdbe_addoptrace | No | |
| PRAGMA vdbe_debug | No | |
| PRAGMA vdbe_listing | No | |
| PRAGMA vdbe_trace | No | |
| PRAGMA wal_autocheckpoint | No | |
| PRAGMA wal_checkpoint | Partial | Not supported calling with param (pragma-value) |
| PRAGMA writable_schema | No | |

### Expressions

Feature support of [sqlite expr syntax](https://www.sqlite.org/lang_expr.html).
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