fix(pgvector): make doc deletion query faster

kyteinsky · kyteinsky · commit 92de2851a643 · 2026-05-20T19:06:03.000+05:30
index the source_id column in the access_list table

Signed-off-by: Anupam Kumar &lt;kyteinsky@gmail.com&gt;
diff --git a/context_chat_backend/vectordb/pgvector.py b/context_chat_backend/vectordb/pgvector.py
@@ -88,6 +88,7 @@ class AccessListStore(Base):
 			f'{DOCUMENTS_TABLE_NAME}.source_id',
 			ondelete='CASCADE',
 		),
+		index=True,
 	)
 
 	__table_args__ = (

Original file line number	Diff line number	Diff line change
`@@ -88,6 +88,7 @@ class AccessListStore(Base):`
`88`	`88`	`f'{DOCUMENTS_TABLE_NAME}.source_id',`
`89`	`89`	`ondelete='CASCADE',`
`90`	`90`	`),`
	`91`	`+ index=True,`
`91`	`92`	`)`
`92`	`93`
`93`	`94`	`__table_args__ = (`