strongduanmu commented on code in PR #4553:
URL: https://github.com/apache/calcite/pull/4553#discussion_r2430889686
##########
core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorImpl.java:
##########
@@ -2204,6 +2208,25 @@ protected void inferUnknownTypes(
}
}
+ private boolean isRowSqlNodeList(final RelDataType inferredType, final
SqlNodeList nodeList) {
+ return inferredType.isStruct() && !nodeList.isEmpty()
+ && SqlKind.ROW == nodeList.get(0).getKind();
Review Comment:
Hi @mihaibudiu @dssysolyatin, sorry for the late reply. I spent some time to
research how to support this SQL.
```sql
SELECT e.empno,r.r
FROM emp AS e, LATERAL (SELECT ROW(e.empno, e.ename) AS r) AS r
WHERE ROW(e.empno, e.ename) IN (
r.r,
ROW(?, ?)
);
```
I found that Calcite currently does not support ROW alias references in many
components, including: `TypeCoercionImpl`, `SqlToRelConverter#convertInToOr`,
and the join logic generated by Janio. So I plan to log a new Jira to record
this SQL related issue and then try to support it.
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