danny0405 commented on a change in pull request #1066: [CALCITE-2843] Babel
parser should support PostgreSQL casting operator '::'
URL: https://github.com/apache/calcite/pull/1066#discussion_r300819396
##########
File path: babel/src/main/codegen/includes/parserImpls.ftl
##########
@@ -50,4 +50,28 @@ SqlNode DateFunctionCall() :
| < TILDE: "~" >
}
+SqlBinaryOperator SpecialBinaryOperator() :
+{
+}
+{
+ <PG_CAST> { return SqlStdOperatorTable.PG_CAST; }
+}
+
+SqlBinaryOperator PostgreSQLCasting(List<Object> list, ExprContext
exprContext) :
+{
+ SqlBinaryOperator op;
+}
+{
+ op = SpecialBinaryOperator() {
+ checkNonQueryExpression(exprContext);
+ list.add(new SqlParserUtil.ToTreeListItem(op, getPos()));
+ }
+ { final SqlDataTypeSpec dt; }
Review comment:
Move `dt` together with `op` declaration.
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