cloud-fan commented on code in PR #37320:
URL: https://github.com/apache/spark/pull/37320#discussion_r940865099
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sql/catalyst/src/main/java/org/apache/spark/sql/connector/expressions/Cast.java:
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@@ -42,4 +42,9 @@ public Cast(Expression expression, DataType dataType) {
@Override
public Expression[] children() { return new Expression[]{ expression() }; }
+
+ @Override
+ public String toString() {
Review Comment:
is this the only missing one? maybe we should add a default implementation
in the base class `Expression` using `ToStringSQLBuilder`?
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