yaooqinn commented on a change in pull request #29303:
URL: https://github.com/apache/spark/pull/29303#discussion_r464165400
##########
File path:
sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkGetColumnsOperation.scala
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@@ -126,12 +124,52 @@ private[hive] class SparkGetColumnsOperation(
HiveThriftServer2.eventManager.onStatementFinish(statementId)
}
+ /**
+ * For numeric and datetime types, it returns the default size of its
catalyst type
+ * For struct type, when its elements are fixed-size, the summation of all
element sizes will be
+ * returned.
+ * For array, map, string, and binaries, the column size is variable, return
null as unknown.
+ */
+ private def getColumnSize(typ: DataType): Option[Int] = typ match {
Review comment:
Hive does not return same result for each type
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