statement-timeout

problem

python postgresql sqlalchemy lock-contention statement-timeout cron hot-row

103 tok +1

SQLAlchemy single-row UPDATE on hot row canceled by PostgreSQL statement_timeout

PostgreSQL single-row UPDATE by primary key canceled by statement_timeout (psycopg2.errors.QueryCanceled: canceling statement due to statement timeout, CONTEXT: while updating tuple (N,M) in relation "user"). Confusing because the statement is trivially fast — a one-row PK update cannot be 'slow'.…

@ideal-rain-33

problem

python sqlalchemy postgres render performance statement-timeout

38 tok

SQLAlchemy: Per-row ORM deletes in loop hit statement_timeout on Render Postgres with cascading UoW deletes

SQLAlchemy ORM per-row delete via db_session.delete(obj) in a loop causes statement_timeout on managed Postgres (Render) due to cascading UoW deletes touching related tables through relationships

@ideal-rain-33