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https://github.com/FerretDB/documentdb.git
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### Does this PR have any customer impact? No
### Type (Feature, Refactoring, Bugfix, DevOps, Testing, Perf, etc) Feature
### Does it involve schema level changes? (Table, Column, Index, UDF, etc level changes) No
### Are you introducing any new config? If yes, do you have tests with and without them being set? No
### ChangeLog (Refer [Template](../oss/CHANGELOG.md))
### Description
Support `let` variables and `$$NOW` in delete queries.
The values of the variables can be accessed in the query by using `$expr`.
Example:
```
{
delete: <collection>,
deletes: [
{
q: {$expr: {$eq: ["$_id", "$$varRef"]}},
limit: 0, // multi
}
],
let: {"varRef": 1},
...
}
```
We parse the `let` value (together with the time system variables - `$$NOW`) and propagate it through the aggregation and variable contexts.
----
#### AI description (iteration 1)
#### PR Classification
New feature
#### PR Summary
This pull request adds support for the `let` clause in delete operations.
- `delete.c`: Implemented logic to handle `let` clause in delete queries, including variable specification and collation.
- `bson_aggregation_pipeline_tests_let.out`: Added extensive test cases to validate the new `let` clause functionality in delete operations.
<!-- GitOpsUserAgent=GitOps.Apps.Server.pullrequestcopilot -->
Related work items: #3423118, #3613877
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*-------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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* include/planner/documentdb_plan_cache.h
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*
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* Common declarations for the pg_documentdb plan cache.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef BSON_PLAN_CACHE_H
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#define BSON_PLAN_CACHE_H
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#include <executor/spi.h>
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/*
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* ID prefixes for different types of query.
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*
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* The first 32 bits of a query ID are used to identity the operation,
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* and the latter 32 bits to identify different query variants.
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*/
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#define QUERY_ID_INSERT (1L << 32)
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#define QUERY_ID_UPDATE_BY_TID (2L << 32)
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#define QUERY_ID_DELETE_BY_TID (3L << 32)
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/* TODO: remove once we fully support let and collation with delete */
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#define QUERY_DELETE_WITH_FILTER (4L << 32);
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#define QUERY_DELETE_WITH_FILTER_SHARDKEY (5L << 32)
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#define QUERY_DELETE_WITH_FILTER_ID (6L << 32)
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#define QUERY_DELETE_WITH_FILTER_SHARDKEY_ID (7L << 32)
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#define QUERY_CALL_UPDATE_ONE (8L << 32)
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#define QUERY_DELETE_ONE (9L << 32)
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#define QUERY_DELETE_ONE_ID (10L << 32)
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#define QUERY_DELETE_ONE_ID_RETURN_DOCUMENT (11L << 32)
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#define QUERY_UPDATE_SELECT_UPDATE_CANDIDATE (12L << 32)
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#define QUERY_UPDATE_SELECT_UPDATE_CANDIDATE_NON_OBJECT_ID (13L << 32)
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#define QUERY_UPDATE_SELECT_UPDATE_CANDIDATE_ONLY_OBJECT_ID (14L << 32)
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#define QUERY_UPDATE_SELECT_UPDATE_CANDIDATE_BOTH_FILTER (15L << 32)
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#define QUERY_ID_RETRY_RECORD_INSERT (20L << 32)
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#define QUERY_ID_RETRY_RECORD_DELETE (21L << 32)
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#define QUERY_ID_RETRY_RECORD_SELECT (22L << 32)
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#define QUERY_ID_INSERT_OR_REPLACE (23L << 32)
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#define QUERY_DELETE_WITH_FILTER_LET_AND_COLLATION (30L << 32)
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#define QUERY_DELETE_WITH_FILTER_SHARDKEY_LET_AND_COLLATION (31L << 32)
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#define QUERY_DELETE_WITH_FILTER_ID_LET_AND_COLLATION (32L << 32)
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#define QUERY_DELETE_WITH_FILTER_SHARDKEY_ID_LET_AND_COLLATION (33L << 32)
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#define QUERY_DELETE_ONE_LET_AND_COLLATION (34L << 32)
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#define QUERY_DELETE_ONE_ID_LET_AND_COLLATION (35L << 32)
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/* GUC that controls the query plan cache size */
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extern int QueryPlanCacheSizeLimit;
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void InitializeQueryPlanCache(void);
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SPIPlanPtr GetSPIQueryPlan(uint64 collectionId, uint64 queryId,
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const char *query, Oid *argTypes, int argCount);
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SPIPlanPtr GetSPIQueryPlanWithLocalShard(uint64 collectionId, const char *shardTableName,
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uint64 queryId,
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const char *query, Oid *argTypes, int argCount);
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#endif
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