85842760dc
This PR change the internal representation for StringType from java.lang.String to UTF8String, which is implemented use ArrayByte. This PR should not break any public API, Row.getString() will still return java.lang.String. This is the first step of improve the performance of String in SQL. cc rxin Author: Davies Liu <davies@databricks.com> Closes #5350 from davies/string and squashes the following commits: 3b7bfa8 [Davies Liu] fix schema of AddJar 2772f0d [Davies Liu] fix new test failure 6d776a9 [Davies Liu] Merge branch 'master' of github.com:apache/spark into string 59025c8 [Davies Liu] address comments from @marmbrus 341ec2c [Davies Liu] turn off scala style check in UTF8StringSuite 744788f [Davies Liu] Merge branch 'master' of github.com:apache/spark into string b04a19c [Davies Liu] add comment for getString/setString 08d897b [Davies Liu] Merge branch 'master' of github.com:apache/spark into string 5116b43 [Davies Liu] rollback unrelated changes 1314a37 [Davies Liu] address comments from Yin 867bf50 [Davies Liu] fix String filter push down 13d9d42 [Davies Liu] Merge branch 'master' of github.com:apache/spark into string 2089d24 [Davies Liu] add hashcode check back ac18ae6 [Davies Liu] address comment fd11364 [Davies Liu] optimize UTF8String 8d17f21 [Davies Liu] fix hive compatibility tests e5fa5b8 [Davies Liu] remove clone in UTF8String 28f3d81 [Davies Liu] Merge branch 'master' of github.com:apache/spark into string 28d6f32 [Davies Liu] refactor 537631c [Davies Liu] some comment about Date 9f4c194 [Davies Liu] convert data type for data source 956b0a4 [Davies Liu] fix hive tests 73e4363 [Davies Liu] Merge branch 'master' of github.com:apache/spark into string 9dc32d1 [Davies Liu] fix some hive tests 23a766c [Davies Liu] refactor 8b45864 [Davies Liu] fix codegen with UTF8String bb52e44 [Davies Liu] fix scala style c7dd4d2 [Davies Liu] fix some catalyst tests 38c303e [Davies Liu] fix python sql tests 5f9e120 [Davies Liu] fix sql tests 6b499ac [Davies Liu] fix style a85fb27 [Davies Liu] refactor d32abd1 [Davies Liu] fix utf8 for python api 4699c3a [Davies Liu] use Array[Byte] in UTF8String 21f67c6 [Davies Liu] cleanup 685fd07 [Davies Liu] use UTF8String instead of String for StringType |
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