Comments (4)
Thanks! While this fix should probably be applied anyway, I wonder how you found this.
Do you know which dialects allow qualified wildcards "inside" expressions, like count(foo.*)
in your PR's testcase? ANSI SQL defines <aggregate function> ::= COUNT <left paren> <asterisk> <right paren> ...
, MSSQL agrees by reporting a syntax error in count(foo.*)
, and the construct doesn't make sense to me. I guess COUNT(distinct foo.*)
could make sense, but I don't know of a RDBMs that supports that either.
(The widely supported SELECT foo.*
is handled correctly now, because we convert ASTNode::SQLQualifiedWildcard
to SQLSelectItem::QualifiedWildcard
here -- I was initially confused how this was not caught by an existing test.)
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I am not too sure exactly which databases support it, but it is a valid syntax.
Stack overflow link recommending its use.
I would have to manually test it in different databases to see which support it.
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Thanks! no need to test, I was wondering if you knew one off-hand. Turns out Postgres does support it, though I didn't find it mentioned in their docs.
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The PR was merged. Thanks again!
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