Support parsing Doris REFRESH MATERIALIZED VIEW syntax

[terrymanu]

• Add REFRESH MATERIALIZED VIEW (AUTO | COMPLETE | PARTITIONS) grammar rule to the Doris dialect
• Add DorisRefreshMaterializedViewStatement and visitRefreshMaterializedView to extract mv name, refresh type and partition names
• Add parser IT cases covering the AUTO, COMPLETE and PARTITIONS variants from issue Support parsing Doris sql #31457

Fixes #31457

[terrymanu]

Result

Review Result: Mergeable

PR #39582 adds REFRESH MATERIALIZED VIEW parsing support to the Doris dialect. The grammar matches the official documentation verbatim, the wiring is complete, and the 3 parser IT cases correspond exactly to the official examples; the three-lens discovery and convergence pass found no candidate that passes the Finding Proof Gate as a blocker.

Evidence

• Official syntax alignment: The official Apache Doris syntax is REFRESH MATERIALIZED VIEW <mv_name> {<partitionSpec> | COMPLETE | AUTO}, where mv_name is defined as a plain identifier (no database-qualified form) and no other clause variants exist (doris.apache.org/docs/dev/sql-manual/sql-statements/table-and-view/async-materialized-view/REFRESH-MATERIALIZED-VIEW/). The PR rule refreshMaterializedView : REFRESH MATERIALIZED VIEW name (partitionSpec | refreshMethod) matches it exactly and reuses the existing refreshMethod (COMPLETE | AUTO), name, and identifierList rules.
• Ambiguity and regression: The existing refresh rule (parser/sql/engine/dialect/doris/src/main/antlr4/imports/doris/DALStatement.g4:929) only accepts LDAP/CATALOG/DATABASE/TABLE after REFRESH, so its second token never intersects the new rule — no parse ambiguity; both new rules sit inside DORIS ADDED markers, consistent with the MySQL trunk/branch convention.
• Dialect family: The MySQL trunk has no REFRESH statement and MariaDB has no corresponding rule; the root cause is Doris-specific, so no trunk or sibling-dialect sync is owed.
• Dispatch registration: SQLVisitorRule.java adds DORIS_REFRESH_MATERIALIZED_VIEW("RefreshMaterializedView", DDL); the prefixed constant name correctly avoids the REFRESH_MATERIALIZED_VIEW constant already taken by PostgreSQL (consistent with the DORIS_DROP_FUNCTION/DORIS_ALTER_SYSTEM precedent).
• Field extraction and assertions: The visitor extracts mvName, the AUTO/COMPLETE flags, and the partition name list via IdentifierValue; the IT assertions cover all fields — a wrong field extraction or a dropped partition would fail the cases.
• Local verification (head bc75c1f0; local file list matches GitHub 11/11): rerun of InternalDorisParserIT — Tests run: 1361, Failures: 0, Errors: 0 (exit 0); compile, spotless, and checkstyle on identical content passed earlier (exit 0).
• Disproved or classified candidates: ① "should support db.mv qualified names" — withdrawn, since the official docs define mv_name as a plain identifier; ② "assertions only check positive flags" — non-blocking, AUTO/COMPLETE exclusivity is grammar-enforced (refreshMethod: COMPLETE | AUTO) and matches the assert style of merged Support parsing Doris CREATE RESOURCE syntax (#31458) #39552; ③ the issue Support parsing Doris sql #31457 checkbox corrections (uncheck the wrongly checked REFRESH, MATERIALIZED, VIEW row, mark CLEAN, PROFILE invalid) are issue-side bookkeeping, outside this PR's code scope.

Coverage

• Reviewed head: bc75c1f006e509df9e799acb19ff41c3684c57e2 (base 3eefbf7f146, merge-base identical; the local git diff file list matches GitHub /pulls/39582/files 11/11).
• Behavior clusters: 2 (grammar and statement modeling: 5 files; parser IT coverage: 6 files); all 11 authoritative files registered with risk axes marked; no churn-only files.
• Completed the three discovery lenses (root cause/behavior, blast radius/contracts, tests/runtime) plus a latest-head convergence pass with 0 new candidates; the review ledger validated and was cleaned up.
• Official documentation: the Doris dev REFRESH-MATERIALIZED-VIEW page (the old Utility-Statements path was reorganized; the current URL confirmed via the sitemap).
• This is a Code Correctness Review: the result covers code scope only; GitHub Actions/CI state was not queried or awaited.