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Review request for hive. Summary ------- clients always wants to know from where the column _col8 has come. this is for that. Diffs ----- ql/src/java/org/apache/hadoop/hive/ql/exec/ColumnTracker.java PRE-CREATION ql/src/java/org/apache/hadoop/hive/ql/exec/ExplainTask.java fe95cb1 ql/src/java/org/apache/hadoop/hive/ql/exec/HashTableSinkOperator.java 9cffc10 ql/src/java/org/apache/hadoop/hive/ql/exec/MapJoinOperator.java c7784c9 ql/src/java/org/apache/hadoop/hive/ql/exec/TableScanOperator.java 141df13 ql/src/java/org/apache/hadoop/hive/ql/optimizer/ColumnPrunerProcFactory.java 6d9b988 ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMapRedUtils.java ae33079 ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/LocalMapJoinProcFactory.java 8f2fef4 ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java dc9ab1b ql/src/java/org/apache/hadoop/hive/ql/plan/AggregationDesc.java ab70bab ql/src/java/org/apache/hadoop/hive/ql/plan/Explain.java 85c9f8f ql/src/java/org/apache/hadoop/hive/ql/plan/ExprNodeGenericFuncDesc.java e264709 ql/src/java/org/apache/hadoop/hive/ql/plan/FilterDesc.java 769c70d ql/src/java/org/apache/hadoop/hive/ql/plan/GroupByDesc.java 9ebbb33 ql/src/java/org/apache/hadoop/hive/ql/plan/HashTableSinkDesc.java 4a729e8 ql/src/java/org/apache/hadoop/hive/ql/plan/JoinDesc.java df9097d ql/src/java/org/apache/hadoop/hive/ql/plan/MapJoinDesc.java ada9826 ql/src/java/org/apache/hadoop/hive/ql/plan/ReduceSinkDesc.java d7f0476 ql/src/java/org/apache/hadoop/hive/ql/plan/SelectDesc.java 97ae10d ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFWrapper.java PRE-CREATION ql/src/test/queries/clientpositive/explain_columns.q PRE-CREATION ql/src/test/results/clientpositive/explain_columns.q.out PRE-CREATION Diff: https://reviews.apache.org/r/1303/diff Testing ------- Thanks, Navis
