fix(pgvector): make doc deletion query faster

kyteinsky · kyteinsky · commit b0af445dabd8 · 2026-03-20T16:45:12.000+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
@@ -79,6 +79,7 @@ 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
`@@ -79,6 +79,7 @@ class AccessListStore(Base):`
`79`	`79`	`f'{DOCUMENTS_TABLE_NAME}.source_id',`
`80`	`80`	`ondelete='CASCADE',`
`81`	`81`	`),`
	`82`	`+ index=True,`
`82`	`83`	`)`
`83`	`84`
`84`	`85`	`__table_args__ = (`