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[coverage] Conformance findings: METADATA-036 #476
Description
Summary
Surfaced by the multi-language coverage fan-out while conformance-testing these SPEC-IDs against databricks/databricks-sql-nodejs. Each finding is committed as an expected-failure (xfail) test in the coverage PR — the test asserts the CORRECT (post-fix) behavior and stays red until THIS driver (databricks/databricks-sql-nodejs) is fixed, then flips green as a tripwire.
Findings
- METADATA-036 [sea]: SEA getColumns with a NULL catalog never returns: kernel metadata path fails with "Statement execution timed out" after ~10min, instead of one all-catalogs columns request returning cross-catalog rows (Thrift conforms with a single GetColumns RPC)
- failing test:
METADATA-036 — getColumns with null catalog returns columns from every catalog in ONE request [sea](see the coverage PR diff undertests/)
- failing test:
Context
- The behavior was first fixed in a DIFFERENT driver — reference PR: Use SHOW COLUMNS IN ALL CATALOGS for getColumns with null catalog (same-repo, integration-test verification) databricks-jdbc#1580 — which seeded the shared language-neutral spec. This issue tracks the same conformance gap in databricks/databricks-sql-nodejs; the reference PR is for cross-referencing the intended behavior, NOT a change to this repo.
- Coverage PR carrying the reproducing xfail test(s): https://github.com/databricks/databricks-driver-test/pull/1081
Activity
vuanhphung commentedon Oct 29, 2026
I retested this on the latest release (
@databricks/sql@2.4.0, kernel binary 1.3.0) against a current SQL warehouse. WithuseKernel: true,getColumns({ schemaName: 'nyctaxi', tableName: 'trips' })with no catalog now returns in about 14 seconds. It gives the same 6 rows as the Thrift backend, fromsamples, the only catalog with that table here. It no longer times out.I couldn't see how many requests the kernel sends for this call, so the METADATA-036 xfail test in the coverage PR linked above is the final check on the single-request part. Closing as fixed.