chore: port Greenplum dialect (#4661)#2673
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- SQLFluff #4661 added the Greenplum dialect (a massively parallel Postgres). Ported it to sqruff: new `DialectKind::Greenplum`, `greenplum.rs` (derived from postgres) with the `DISTRIBUTED BY (...) | RANDOMLY | REPLICATED` clause on `CREATE TABLE` and `DISTRIBUTED`/`RANDOMLY`/`REPLICATED` reserved keywords, wired into the dialect registry, feature list, and test harness. - Greenplum storage option values accept literals, bare identifiers, reserved-word identifiers, and quoted identifiers (e.g. `compresstype = zstd`, `orientation = column`, `compresstype = "zstd"`). - Added the `greenplum/create_table` fixture (.sql + .yml); the dialect test parses it with no unparsable segments. Parser-only change. - Follow-up (not in this PR, and not supported by SQLFluff #4661 either): `CREATE TABLE ... AS SELECT ... DISTRIBUTED ...` (CTAS) — the trailing DISTRIBUTED clause needs deeper select parse-mode work. Ported from SQLFluff 32095f823ee6a8b597b3dc8cb688d55449f85b64 sqlfluff/sqlfluff#4661 sqlfluff/sqlfluff@32095f8
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Summary
DialectKind::Greenplum,greenplum.rs(derived from postgres) with theDISTRIBUTED BY (...) | RANDOMLY | REPLICATEDclause onCREATE TABLEandDISTRIBUTED/RANDOMLY/REPLICATEDreserved keywords, wired into the dialect registry, feature list, and test harness.compresstype = zstd,orientation = column,compresstype = "zstd").greenplum/create_tablefixture (.sql + .yml); the dialect test parses it with no unparsable segments. Parser-only change.CREATE TABLE ... AS SELECT ... DISTRIBUTED ...(CTAS) — the trailing DISTRIBUTED clause needs deeper select parse-mode work.Ported from SQLFluff 32095f823ee6a8b597b3dc8cb688d55449f85b64
sqlfluff/sqlfluff#4661
sqlfluff/sqlfluff@32095f8