my7ym commented on a change in pull request #1811: [CALCITE-3789] Support
validation of UNNEST multiple array columns like Presto
URL: https://github.com/apache/calcite/pull/1811#discussion_r380372342
##########
File path: core/src/main/java/org/apache/calcite/sql/SqlUnnestOperator.java
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@@ -97,6 +97,17 @@ public SqlUnnestOperator(boolean withOrdinality) {
return builder.build();
}
+ private boolean allowFlattenStruct(SqlOperatorBinding operatorBinding) {
+ if (!(operatorBinding instanceof SqlCallBinding)) {
Review comment:
@danny0405 Took a second thought on the function name, the result of the
function is actually whether **disallow flatten struct in UNNEST**. So maybe
disallowFlattenStructInUnnest? Let me know. Thanks.
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