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[SPARK-9529] [SQL] improve TungstenSort on DecimalType
Generate prefix for DecimalType, fix the random generator of decimal cc JoshRosen Author: Davies Liu <davies@databricks.com> Closes #7857 from davies/sort_decimal and squashes the following commits: 2433959 [Davies Liu] Merge branch 'master' of github.com:apache/spark into sort_decimal de24253 [Davies Liu] fix style 0a54c1a [Davies Liu] sort decimal
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- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/SortOrder.scala 13 additions, 0 deletions...org/apache/spark/sql/catalyst/expressions/SortOrder.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/RandomDataGenerator.scala 4 additions, 1 deletion...test/scala/org/apache/spark/sql/RandomDataGenerator.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/types/DataTypeTestUtils.scala 2 additions, 1 deletion.../scala/org/apache/spark/sql/types/DataTypeTestUtils.scala
- sql/core/src/main/scala/org/apache/spark/sql/execution/SortPrefixUtils.scala 10 additions, 10 deletions...cala/org/apache/spark/sql/execution/SortPrefixUtils.scala
- sql/core/src/test/scala/org/apache/spark/sql/execution/TungstenSortSuite.scala 1 addition, 2 deletions...la/org/apache/spark/sql/execution/TungstenSortSuite.scala
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