fix: accept optional colon in Spark struct DDL - #969
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Spark SHOW CREATE TABLE emits STRUCT<field: type> with an optional colon. Treat ':' as a spark operator and combine ARRAY/MAP/STRUCT angle-bracket types so the dialect can parse and format that DDL. Fixes sql-formatter-org#900 Co-authored-by: cnbei <baymy@foxmail.com>
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Fixes #900
Spark SHOW CREATE TABLE can emit struct field types as struct <c: bigint> with an optional colon. The spark dialect threw a parse error on that colon. Accept the optional colon and add spark.test.ts coverage.