englefly commented on code in PR #17661:
URL: https://github.com/apache/doris/pull/17661#discussion_r1133173444
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/FunctionBinder.java:
##########
@@ -212,4 +215,17 @@ public Expression visitBetween(Between between,
CascadesContext context) {
Between newBetween = between.withChildren(rewrittenChildren);
return TypeCoercionUtils.processBetween(newBetween);
}
+
+ @Override
+ public Expression visitInSubquery(InSubquery inSubquery, CascadesContext
context) {
+ Expression newCompareExpr = inSubquery.getCompareExpr().accept(this,
context);
+ Expression newListQuery = inSubquery.getListQuery().accept(this,
context);
+ ComparisonPredicate newCpAfterUnNestingSubquery =
+ new EqualTo(newCompareExpr, ((ListQuery)
newListQuery).getQueryPlan().getOutput().get(0));
Review Comment:
there are some exceptions.
for example: select * from T where T.a in (select b from B)
T.a is int column, and B.b is bitmap column.
the semantics of this sql is bitmap_contains( bitmap_union(B.b), T.a)
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