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[SPARK-8269] [SQL] string function: initcap
This PR is based on #7208 , thanks to HuJiayin Closes #7208 Author: HuJiayin <jiayin.hu@intel.com> Author: Davies Liu <davies@databricks.com> Closes #7850 from davies/initcap and squashes the following commits: 54472e9 [Davies Liu] fix python test 17ffe51 [Davies Liu] Merge branch 'master' of github.com:apache/spark into initcap ca46390 [Davies Liu] Merge branch 'master' of github.com:apache/spark into initcap 3a906e4 [Davies Liu] implement title case in UTF8String 8b2506a [HuJiayin] Update functions.py 2cd43e5 [HuJiayin] fix python style check b616c0e [HuJiayin] add python api 1f5a0ef [HuJiayin] add codegen 7e0c604 [HuJiayin] Merge branch 'master' of https://github.com/apache/spark into initcap 6a0b958 [HuJiayin] add column c79482d [HuJiayin] support soundex 7ce416b [HuJiayin] support initcap rebase code
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- python/pyspark/sql/functions.py 12 additions, 0 deletionspython/pyspark/sql/functions.py
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/FunctionRegistry.scala 1 addition, 0 deletions...apache/spark/sql/catalyst/analysis/FunctionRegistry.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringOperations.scala 17 additions, 0 deletions...che/spark/sql/catalyst/expressions/stringOperations.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala 12 additions, 0 deletions...ark/sql/catalyst/expressions/StringExpressionsSuite.scala
- sql/core/src/main/scala/org/apache/spark/sql/functions.scala 9 additions, 0 deletionssql/core/src/main/scala/org/apache/spark/sql/functions.scala
- sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala 9 additions, 0 deletions...est/scala/org/apache/spark/sql/StringFunctionsSuite.scala
- unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java 88 additions, 0 deletions...c/main/java/org/apache/spark/unsafe/types/UTF8String.java
- unsafe/src/test/java/org/apache/spark/unsafe/types/UTF8StringSuite.java 8 additions, 0 deletions...t/java/org/apache/spark/unsafe/types/UTF8StringSuite.java
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