mirror of
https://github.com/FerretDB/documentdb.git
synced 2026-11-07 19:42:46 -05:00
Zinan Ren
4b79ce38d4
### Does this PR have any customer impact? Yes ### Type (Feature, Refactoring, Bugfix, DevOps, Testing, Perf, etc) Perf ### 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? Yes ### ChangeLog (Refer [Template](../oss/CHANGELOG.md)) ### Description Adding the GUC documentdb.enableVectorCalculateDefaultSearchParam to enable or disable the calculation of default search parameters. The default value is on Adding feature counts for the usage of default search parameters. ---- #### AI description (iteration 1) #### PR Classification This PR implements a new configuration option to enable or disable the dynamic calculation of default search parameters for vector search indexes. #### PR Summary The pull request adds a GUC flag that controls whether default search parameters (e.g., nProbes for IVF and efSearch for HNSW) are computed dynamically based on collection size. It updates internal calculation functions, test expectations, and feature counters accordingly. - `src/vector/vector_index_kind_impl.c`: Revised the IVF and HNSW search parameter calculation functions to conditionally compute default parameters when the new GUC is enabled. - `src/configs/feature_flag_configs.c` and `include/vector/vector_common.h`: Introduced the new boolean GUC `enableVectorCalculateDefaultSearchParam`. - Test files (e.g., files under `/oss/internal/pg_documentdb_distributed/src/test/regress/expected/` and corresponding `pgmongo` tests): Updated expected outputs and query plans to reflect the new default parameter values. - Feature counter outputs and related SQL tests: Modified to include metrics for the new default search parameter usage. <!-- GitOpsUserAgent=GitOps.Apps.Server.pullrequestcopilot --> Related work items: #4194082