kgyrtkirk commented on a change in pull request #812: [CALCITE-2507] Aliasing a
star in select list should throw a parsing e…
URL: https://github.com/apache/calcite/pull/812#discussion_r261569740
##########
File path: core/src/main/codegen/templates/Parser.jj
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@@ -1559,6 +1559,11 @@ SqlNode SelectItem() :
SqlIdentifier id;
}
{
+ LOOKAHEAD(7)
+ e = StarIdentifier() {
+ return e;
+ }
+ |
e = SelectExpression()
[
[ <AS> ]
Review comment:
instead of introducing a new identifier/etc you should be able to make the
check here - and raise an exception if whether `e` is a star identifier
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