NobiGo commented on code in PR #3219:
URL: https://github.com/apache/calcite/pull/3219#discussion_r1245997578
##########
core/src/main/java/org/apache/calcite/sql/dialect/PostgresqlSqlDialect.java:
##########
@@ -97,6 +104,39 @@ public PostgresqlSqlDialect(Context context) {
SqlParserPos.ZERO);
}
+ @Override public SqlNode rewriteSingleValueExpr(SqlNode aggCall, RelDataType
relDataType) {
+ final SqlNode operand = ((SqlBasicCall) aggCall).operand(0);
+ final SqlLiteral nullLiteral = SqlLiteral.createNull(SqlParserPos.ZERO);
+ final SqlNode unionOperand =
Review Comment:
When we use `select null union all select null`, The PostgreSQL will throw
"ERROR: CASE types text and bigint(The input type) cannot be matched", So we
need to tell it the NULL's type.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
