diff --git ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConstantPropagateProcFactory.java ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConstantPropagateProcFactory.java index bdc7448..49dff87 100644 --- ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConstantPropagateProcFactory.java +++ ql/src/java/org/apache/hadoop/hive/ql/optimizer/ConstantPropagateProcFactory.java @@ -77,6 +77,8 @@ import org.apache.hadoop.hive.ql.udf.generic.GenericUDFOPNull; import org.apache.hadoop.hive.ql.udf.generic.GenericUDFOPOr; import org.apache.hadoop.hive.ql.udf.generic.GenericUDFStruct; +import org.apache.hadoop.hive.ql.udf.generic.GenericUDFToUnixTimeStamp; +import org.apache.hadoop.hive.ql.udf.generic.GenericUDFUnixTimeStamp; import org.apache.hadoop.hive.ql.udf.generic.GenericUDFWhen; import org.apache.hadoop.hive.serde.serdeConstants; import org.apache.hadoop.hive.serde2.objectinspector.ConstantObjectInspector; @@ -817,6 +819,13 @@ private static ExprNodeDesc shortcutFunction(GenericUDF udf, List } } + if (udf instanceof GenericUDFUnixTimeStamp) { + if (newExprs.size() > 1) { + // unix_timestamp(args) -> to_unix_timestamp(args) + return ExprNodeGenericFuncDesc.newInstance(new GenericUDFToUnixTimeStamp(), newExprs); + } + } + return null; }