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fix: use correlated subquery in psa_post_log backfill to avoid invalid FROM-clause reference

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PostgreSQL UPDATE...FROM does not allow the updated table to be
referenced inside the FROM clause's JOIN conditions. Replace the
LEFT JOIN psa_connections with a correlated subquery.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
chihlasm
2026-04-09 06:31:17 +00:00
parent 034b858fc9
commit 0f33feb6d6
1 changed files with 6 additions and 2 deletions
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8
backend/alembic/versions/8aac5b372402_add_account_id_psa_notifications.py
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@@ -25,11 +25,15 @@ def upgrade() -> None:
# Step 2: BACKFILL # Step 2: BACKFILL
# psa_post_log: prefer psa_connection → fallback to posted_by user # psa_post_log: prefer psa_connection → fallback to posted_by user
# Note: cannot reference the updated table (ppl) inside the FROM clause JOIN,
# so use a correlated subquery for psa_connections lookup instead.
op.execute(""" op.execute("""
UPDATE psa_post_log ppl UPDATE psa_post_log ppl
SET account_id = COALESCE(pc.account_id, u.account_id) SET account_id = COALESCE(
(SELECT account_id FROM psa_connections WHERE id = ppl.psa_connection_id),
u.account_id
)
FROM users u FROM users u
LEFT JOIN psa_connections pc ON pc.id = ppl.psa_connection_id
WHERE ppl.posted_by = u.id WHERE ppl.posted_by = u.id
AND ppl.account_id IS NULL AND ppl.account_id IS NULL
""") """)