feat(core): support refreshable materialized views (NUM-6762)#110
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alvarogar4 merged 2 commits intomainfrom Apr 20, 2026
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Add an optional `refresh` field to `materializedView()` covering all clauses
ClickHouse supports for refreshable MVs (GA since 24.10): EVERY/AFTER,
OFFSET, RANDOMIZE FOR, DEPENDS ON, SETTINGS, APPEND, and EMPTY.
The planner emits `ALTER TABLE ... MODIFY REFRESH ...` for schedule-only
changes and drop+recreate for structural ones. APPEND is treated as
structural because ClickHouse rejects toggling it via ALTER, and MODIFY
REFRESH always re-emits APPEND when present (the server rejects omitting
it on an existing APPEND MV).
Validator rejects combinations verified invalid against ClickHouse 25.12:
missing or both `every`/`after`, malformed intervals, `DEPENDS ON` paired
with `REFRESH AFTER`, and non-APPEND RMVs targeting `SharedMergeTree` /
`Replicated*` tables in the same schema.
`@chkit/plugin-pull` parses the REFRESH block out of
`system.tables.create_table_query`, strips Cloud-injected `DEFINER` / `SQL
SECURITY` clauses, and renders `refresh: { ... }` back into the generated
schema file.
Also converts `sql-validation.e2e.test.ts` from `test('setup'/'teardown')`
to `beforeAll/afterAll` so tests nested under the top-level `describe`
see an initialized client — pre-existing test-ordering bug.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Prevents ticket exports, research drafts, and other working notes from ever being tracked. Flagged in code review — Linear URLs, personal emails, and customer hostnames sometimes end up in these files. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
refreshfield tomaterializedView()covering all ClickHouse refreshable-MV clauses (EVERY/AFTER, OFFSET, RANDOMIZE FOR, DEPENDS ON, SETTINGS, APPEND, EMPTY). GA since ClickHouse 24.10.ALTER TABLE … MODIFY REFRESH …for schedule-only changes and drop+recreate for structural ones. APPEND is structural — the server rejects toggling it via ALTER, and MODIFY REFRESH always re-emits APPEND when set (verified live; undocumented).every/after, malformed intervals,DEPENDS ONwithREFRESH AFTER, and non-APPEND RMVs targeting replicated (SharedMergeTree/Replicated*) tables in the same schema.@chkit/plugin-pullparses the REFRESH block fromsystem.tables.create_table_query, strips Cloud-injectedDEFINER/SQL SECURITYnoise, and round-tripsrefresh: { … }into generated schema files.schema/refreshable-views.mdreference page;schema/dsl-reference.mdupdated with therefreshrow.sql-validation.e2e.test.tsfromtest('setup'/'teardown')tobeforeAll/afterAllso tests nested under the top-leveldescribesee an initialized client (pre-existing ordering bug — same fix as the danglingfc4d2c6commit).Test plan
bun verify(typecheck + lint + test + build via Doppler CI config — customer-chx) — 33/33 tasks, 419 tests pass, 0 fail@chkit/core(SQL rendering, diff rules, canonical, validation) and +7 in@chkit/plugin-pull(parser, DEFINER stripping, render)MODIFY REFRESH→ drop+recreate on query change → remove)chkit generate+migrate --applyflow for create/modify/dropNote on refresh execution: scheduled refreshes do not fire on customer-benchmark because of a cluster-side permission issue (
permission denied for table refresh_coordinationinsystem.view_refreshes.exception). chkit's DDL management is unaffected; worth filing a separate Numia infra ticket for the cluster.Closes NUM-6762.
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