release-23.2: sql: allow DISCARD in read-only transactions #127548
Merged
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Backport 1/1 commits from #127298.
/cc @cockroachdb/release
To match PostgreSQL, allow DISCARD in read-only transactions.
Fixes: #124150
Release note (sql change): Fix a bug in which the DISCARD statement was disallowed with
default_transaction_read_only = on
.Release justification: low-risk fix for ORM-breaking issue.