fix(redshift): support wildcard select items with alias (e.g. t.* AS alias)#2229
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fix(redshift): support wildcard select items with alias (e.g. t.* AS alias)#2229yoabot-droid wants to merge 1 commit intoapache:mainfrom
yoabot-droid wants to merge 1 commit intoapache:mainfrom
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…alias)
Redshift allows aliasing wildcard expressions in SELECT, e.g.:
SELECT t.* AS alias FROM t
Previously the parser would fail with:
ParserError("Expected: end of statement, found: AS")
Fix: add opt_alias field to WildcardAdditionalOptions and parse the
optional AS <alias> clause when the dialect supports it.
Adds supports_select_wildcard_with_alias() dialect method, enabled for
RedshiftSqlDialect.
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Problem
Redshift supports aliasing wildcard expressions in SELECT statements:
Previously the parser would fail with:
This was confirmed working on a live Redshift database.
Solution
opt_alias: Option<Ident>field toWildcardAdditionalOptionssupports_select_wildcard_with_alias()method to theDialecttrait (default:false)RedshiftSqlDialectparse_wildcard_additional_options, parse an optionalAS <alias>when the dialect supports itDisplayand span tracking for the new fieldTests
Added regression tests in
tests/sqlparser_redshift.rs:SELECT t.* AS all_cols FROM tSELECT * AS all_cols FROM t