Hi community,
Anyone could help to review the pr.
ISSUE: https://issues.apache.org/jira/browse/CALCITE-5000
PR: https://github.com/apache/calcite/pull/2714
This Jira aims to reduce aggregate functions, when arg of agg-call is in
the aggregate's group.
Example:
-- origin sql
select max(c1) from
+1 Babel is an appropriate place to support this. (It would not be practical to
implement in parser config, because tokenization needs to be efficient. It is
better done in a separate parser, which is what Babel has.)
XuRenhe, Please log a feature request in Jira to support MySQL-style
I do some search in:
PostgreSQL: https://www.postgresql.org/docs/9.1/sql-syntax-lexical.html
> don't support
SqlServer:
https://docs.microsoft.com/en-us/sql/relational-databases/databases/database-identifiers?view=sql-server-ver15
>don't support
Oracle:
Hello XuRenhe,
Please be aware that our dev list does not allow images.
Regarding your question, I found this on the SQL standard:
« An is any character in the Unicode General Category
classes “Lu”, “Ll”, “Lt”, “Lm”, “Lo”, or “Nl”.
NOTE 95 — The Unicode General Category classes “Lu”, “Ll”,
Hi community:
Parsing sql fails, when meeting the identifier starting with number.
Here, test case:
// org.apache.calcite.test.SqlToRelConverterTest
@Test void testIdentifierStartWithNumber() {
final String sql =
"select 1_c1 from (select deptno as 1_c1 from emp)";
sql(sql).ok();
}
It
