pengzhiwei2018 commented on a change in pull request #1138: [CALCITE-1581] UDTF
like in hive
URL: https://github.com/apache/calcite/pull/1138#discussion_r316592589
##########
File path: core/src/main/codegen/templates/Parser.jj
##########
@@ -1579,15 +1579,38 @@ List<SqlNode> SelectList() :
SqlNode SelectItem() :
{
SqlNode e;
- final SqlIdentifier id;
+ SqlIdentifier id;
+ final List<SqlNode> ids = new ArrayList();
+ final Span s = span();
}
{
e = SelectExpression()
[
[ <AS> ]
- id = SimpleIdentifier() {
- e = SqlStdOperatorTable.AS.createCall(span().end(e), e, id);
- }
+ (
+ (
+ id = SimpleIdentifier()
+ {
+ e = SqlStdOperatorTable.AS.createCall(s.end(e), e, id);
+ }
+ )
+ |
+ (
+ <LPAREN>
+ id = SimpleIdentifier()
+ {
+ ids.add(id);
+ }
+ ( <COMMA> id = SimpleIdentifier() { ids.add(id);} )*
+ <RPAREN>
+ {
+ if (!this.conformance.allowSelectTableFunction()) {
+ throw new
ParseException(RESOURCE.notAllowTableFunctionInSelect().str());
+ }
Review comment:
Thanks for you suggestions @danny0405 .
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