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[SPARK-8240][SQL] string function: concat
Author: Reynold Xin <rxin@databricks.com> Closes #7486 from rxin/concat and squashes the following commits: 5217d6e [Reynold Xin] Removed Hive's concat test. f5cb7a3 [Reynold Xin] Concat is never nullable. ae4e61f [Reynold Xin] Removed extra import. fddcbbd [Reynold Xin] Fixed NPE. 22e831c [Reynold Xin] Added missing file. 57a2352 [Reynold Xin] [SPARK-8240][SQL] string function: concat
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- 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 37 additions, 0 deletions...che/spark/sql/catalyst/expressions/stringOperations.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala 23 additions, 1 deletion...ark/sql/catalyst/expressions/StringExpressionsSuite.scala
- sql/core/src/main/scala/org/apache/spark/sql/functions.scala 22 additions, 0 deletionssql/core/src/main/scala/org/apache/spark/sql/functions.scala
- sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala 0 additions, 242 deletions.../scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala
- sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala 284 additions, 0 deletions...est/scala/org/apache/spark/sql/StringFunctionsSuite.scala
- sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala 3 additions, 1 deletion...che/spark/sql/hive/execution/HiveCompatibilitySuite.scala
- unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java 37 additions, 3 deletions...c/main/java/org/apache/spark/unsafe/types/UTF8String.java
- unsafe/src/test/java/org/apache/spark/unsafe/types/UTF8StringSuite.java 14 additions, 0 deletions...t/java/org/apache/spark/unsafe/types/UTF8StringSuite.java
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