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fix: allow trusted halfvec tenant search casts (#2402)

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Co-authored-by: dadachann <185672915+dadachann@users.noreply.github.com>
This commit is contained in:
Hyu
2026-08-05 22:09:01 +08:00
committed by GitHub
parent cdd5c6589c
commit 211710e24c
2 changed files with 5 additions and 4 deletions
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src/langbot/pkg/persistence/tenant_uow.py
+3 -3
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@@ -13,7 +13,7 @@ import typing
import sqlalchemy
import sqlalchemy.ext.asyncio as sqlalchemy_asyncio
import sqlalchemy.orm as sqlalchemy_orm
from pgvector.sqlalchemy import Vector
from pgvector.sqlalchemy import HALFVEC, Vector
from sqlalchemy.dialects.postgresql.dml import OnConflictDoNothing as PostgreSQLOnConflictDoNothing
from sqlalchemy.dialects.postgresql.dml import OnConflictDoUpdate as PostgreSQLOnConflictDoUpdate
from sqlalchemy.dialects.sqlite.dml import OnConflictDoNothing as SQLiteOnConflictDoNothing
@@ -281,7 +281,7 @@ def _validate_scoped_sql_type(
return
seen.add(identity)
if type(sql_type) is Vector:
if type(sql_type) in {Vector, HALFVEC}:
return
if not type(sql_type).__module__.startswith('sqlalchemy.'):
raise ScopedSessionTransactionError('TenantUnitOfWork does not allow custom SQL types in public statements')
@@ -462,7 +462,7 @@ def _validate_scoped_statement_call(args: tuple[typing.Any, ...], kwargs: dict[s
if isinstance(element, sqlalchemy.sql.elements.BindParameter) and element.literal_execute:
raise ScopedSessionTransactionError('TenantUnitOfWork does not allow literal-execute SQL parameters')
if isinstance(element, sqlalchemy.sql.elements.Cast) and type(element.type) is not Vector:
if isinstance(element, sqlalchemy.sql.elements.Cast) and type(element.type) not in {Vector, HALFVEC}:
raise ScopedSessionTransactionError(
'TenantUnitOfWork only allows the trusted pgvector cast used by tenant vector search'
)