GideonPotok commented on code in PR #47154:
URL: https://github.com/apache/spark/pull/47154#discussion_r1758993567
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/aggregate/Mode.scala:
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@@ -17,17 +17,20 @@
package org.apache.spark.sql.catalyst.expressions.aggregate
+import org.apache.spark.SparkUnsupportedOperationException
import org.apache.spark.sql.catalyst.InternalRow
import org.apache.spark.sql.catalyst.analysis.{ExpressionBuilder,
TypeCheckResult, UnresolvedWithinGroup}
import org.apache.spark.sql.catalyst.expressions.{Ascending, Descending,
Expression, ExpressionDescription, ImplicitCastInputTypes, SortOrder}
import org.apache.spark.sql.catalyst.trees.UnaryLike
import org.apache.spark.sql.catalyst.types.PhysicalDataType
-import org.apache.spark.sql.catalyst.util.{CollationFactory, GenericArrayData,
UnsafeRowUtils}
+import org.apache.spark.sql.catalyst.util.{ArrayData, CollationFactory,
GenericArrayData, UnsafeRowUtils}
+import org.apache.spark.sql.errors.DataTypeErrors.{toSQLId, toSQLType}
import org.apache.spark.sql.errors.QueryCompilationErrors
-import org.apache.spark.sql.types.{AbstractDataType, AnyDataType, ArrayType,
BooleanType, DataType, StringType}
+import org.apache.spark.sql.types.{AbstractDataType, AnyDataType, ArrayType,
BooleanType, DataType, MapType, StringType, StructField, StructType}
import org.apache.spark.unsafe.types.UTF8String
import org.apache.spark.util.collection.OpenHashMap
+
Review Comment:
```suggestion
```
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