Search Options
Search options are specified by PostgreSQL GUC.
Options for ivf
These options only work for IVF algorithm. Refer to Indexing.
| Option | Type | Range | Default | Description |
|---|---|---|---|---|
| vectors.ivf_nprobe | integer | [1, 1_000_000] | 10 | Number of lists to scan. |
Options for hnsw
These options only work for HNSW algorithm. Refer to Indexing.
| Option | Type | Range | Default | Description |
|---|---|---|---|---|
| vectors.hnsw_ef_search | integer | [1, 65535] | 100 | Search scope of HNSW. |
Other Options
Query options for search mode: .
| Option | Type | Range | Default | Description |
|---|---|---|---|---|
| vectors.search_mode | enum | "basic", "vbase" | "vbase" | Search mode, Refer to Search |
| vectors.pgvector_compatibility | boolean | off | Enable or disable pgvector compatibility, Refer to pgvector compatibility | |
| vectors.enable_index | boolean | on | Enable or disable the query planner's use of vector types. |