Allow table name as column reference to return row as struct#4195
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arnaud-lacurie wants to merge 7 commits into
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Allow table name as column reference to return row as struct#4195arnaud-lacurie wants to merge 7 commits into
arnaud-lacurie wants to merge 7 commits into
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…ource SELECT (T.*) now names the outer column after T; SELECT (*) from a single table names it after the table/alias. With multiple tables in scope the column remains anonymous.
When an identifier in the SELECT list matches a table name or alias but no column with that name exists, return the full row as a struct — equivalent to SELECT (*) FROM <table>. Column names always take priority over table names. SELECT restaurant FROM restaurant; SELECT r FROM restaurant r;
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Summary
SELECTlist matches a table name or alias but no column with that name exists, return the full row as a struct (equivalent toSELECT (*) FROM <table>)SELECT t FROM foo t) works as expectedImplementation
Added
resolveAsTableRowMaybeinSemanticAnalyzeras a fallback inresolveIdentifier— reuses the existingexpandStarpath, same asSELECT (T.*).Updated
SELECTreference docs to cover(*)and the new shorthand, which were previously undocumented.Built on top of #4182