olivrlee commented on code in PR #3023:
URL: https://github.com/apache/calcite/pull/3023#discussion_r1070146181
##########
core/src/main/codegen/templates/Parser.jj:
##########
@@ -4609,15 +4610,116 @@ SqlLiteral DateTimeLiteral() :
}
|
<DATE> { s = span(); } p = SimpleStringLiteral() {
- return SqlParserUtil.parseDateLiteral(p, s.end(this));
+ return SqlLiteral.createUnknown("DATE", p, s.end(this));
+ }
+|
+ <DATETIME> { s = span(); } p = SimpleStringLiteral() {
+ return SqlLiteral.createUnknown("DATETIME", p, s.end(this));
}
|
<TIME> { s = span(); } p = SimpleStringLiteral() {
- return SqlParserUtil.parseTimeLiteral(p, s.end(this));
+ return SqlLiteral.createUnknown("TIME", p, s.end(this));
}
|
+ LOOKAHEAD(2)
<TIMESTAMP> { s = span(); } p = SimpleStringLiteral() {
- return SqlParserUtil.parseTimestampLiteral(p, s.end(this));
+ return SqlLiteral.createUnknown("TIMESTAMP", p, s.end(this));
+ }
+|
+ <TIMESTAMP> { s = span(); } <WITH> <LOCAL> <TIME> <ZONE> p =
SimpleStringLiteral() {
+ return SqlLiteral.createUnknown("TIMESTAMP WITH LOCAL TIME ZONE", p,
s.end(this));
+ }
+}
+
+/**
+ * Parses BigQuery's built-in DATE() function.
+ */
+SqlNode DateFunctionCall() :
+{
+ final SqlFunctionCategory funcType = SqlFunctionCategory.TIMEDATE;
+ final SqlIdentifier qualifiedName;
+ final Span s;
+ final SqlLiteral quantifier;
+ final List<? extends SqlNode> args;
+}
+{
+ <DATE> {
+ s = span();
+ qualifiedName = new SqlIdentifier(unquotedIdentifier(), getPos());
+ }
+ args = FunctionParameterList(ExprContext.ACCEPT_SUB_QUERY) {
+ quantifier = (SqlLiteral) args.get(0);
+ args.remove(0);
Review Comment:
what is this line doing?
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