liukun4515 commented on issue #3557:
URL:
https://github.com/apache/arrow-datafusion/issues/3557#issuecomment-1259144527
I go through code of trait `ExprRewritable`, how to rewrite the `subquery`
for the sub query expr like below:
```
Expr::InSubquery {
expr,
subquery,
negated,
} => Expr::InSubquery {
expr: rewrite_boxed(expr, rewriter)?,
subquery,
negated,
},
```
Above code just rewrite the expr, and don't rewrite the sub query plan, why
not rewrite the subquery plan with its exprs?
cc @andygrove
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