mtree regression tests" step. Tests added (all in tests/integration/, package integration): * TestGetCDCMetadataLegacySchema — simulates a pre-migration cluster whose ace_cdc_metadata lacks pub_commit_lsn. The to_jsonb(m) ->> fallback must return empty rather than SQLSTATE 42703, and UpdateFromCDC must warn-and-skip rather than fail. Guards b5a7bf7. * TestBuildMtreePoolLeakOnNodeError — forces the first per-node iteration of BuildMtree to fail at GetCDCMetadata so the build loop never reaches n2, then asserts via pg_stat_activity that n2's ACE-flagged connections return to 0. The baseline is anchored with require.Eventually so a still-draining MtreeInit conn can't mask a regression. Guards ff67d12. * TestBuildMtreeAvoidsRedundantDDL — snapshots pg_namespace.xmin and pg_proc.xmin for pgedge_ace and bytea_xor across a BuildMtree call; CREATE OR REPLACE FUNCTION unconditionally bumps pg_proc.xmin, so unchanged xmin proves BuildMtree no longer recreates them. Catalog-side guard for 2752ea5 (vanilla-PG, deterministic). * TestBuildMtreeConcurrentSpockNodes — fires two single-node BuildMtree calls concurrently against the Spock cluster, asserting both succeed (no XX000 "tuple concurrently updated") and that ace_cdc_metadata is not in any actual Spock replication set (set_name IS NOT NULL). End-to-end guard for 2752ea5 + 113b0bc. * TestACEConnSuppressesSpockDDLReplication — opens a pool via auth.GetClusterNodeConnection and asserts SHOW returns 'off' for both spock.enable_ddl_replication and spock.include_ddl_repset. Includes a pg_extension probe so the test fails loudly on a Spock-less cluster instead of silently passing on PG's placeholder-GUC behavior. Guards 113b0bc. * TestMtreeInitReapsOrphanedSlot — seeds an orphan pg_create_logical_replication_slot then asserts MtreeInit succeeds and leaves a fresh slot with a valid restart_lsn. Exercises the drop-then-create recovery path at cdc/setup.go:53 referenced by the slot-leak mitigation comment in merkle.go:893-901. * TestUpdateMtreeReflectsInserts / Deletes / Updates — close the zero-coverage gap on UpdateMtree (merkle.go:1560). Each builds a tree, performs DML, runs UpdateMtree, then asserts root node_hash changed, no leaves remain dirty, and the relevant CDC counter reset. CI: new "Run mtree regression tests" step runs go test with 'TestBuildMtree|TestUpdateMtree|TestMtreeInit|TestACEConn' so future mtree regression tests under these prefixes are picked up automatically. TestGetCDCMetadataLegacySchema already matches the existing CDC step.

Commits

Commits on May 28, 2026

test: regression coverage for recent mtree fixes

test: ANALYZE seeded data so mtree tests build realistic trees

Commits on Jun 1, 2026

test: sanitize SQL identifiers via pgx.Identifier in test setup

test: sanitize remaining SQL identifier interpolations in new tests