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- John Pullokkaran On Dec. 19, 2014, 6:28 p.m., pengcheng xiong wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/28797/ > ----------------------------------------------------------- > > (Updated Dec. 19, 2014, 6:28 p.m.) > > > Review request for hive and John Pullokkaran. > > > Repository: hive-git > > > Description > ------- > > Current version (Hive 0.14) does not support union (or union distinct). It > only supports union all. In this patch, we try to add this new feature by > rewriting union distinct to union all followed by group by. > > > Diffs > ----- > > itests/src/test/resources/testconfiguration.properties 1e67a67 > > ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/translator/ASTConverter.java > c02a65e > ql/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g 4e98e9b > ql/src/java/org/apache/hadoop/hive/ql/parse/QBExpr.java e923bca > ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java 29be691 > ql/src/test/queries/clientpositive/unionDistinct_1.q PRE-CREATION > ql/src/test/queries/clientpositive/unionDistinct_2.q PRE-CREATION > ql/src/test/results/clientpositive/explain_logical.q.out 41c8a2b > ql/src/test/results/clientpositive/groupby_sort_1_23.q.out cb94faa > ql/src/test/results/clientpositive/groupby_sort_skew_1_23.q.out bbc0de4 > ql/src/test/results/clientpositive/input_part7.q.out 6094f9c > ql/src/test/results/clientpositive/join34.q.out e053e44 > ql/src/test/results/clientpositive/join35.q.out 579920b > ql/src/test/results/clientpositive/optimize_nullscan.q.out fb66f5e > ql/src/test/results/clientpositive/tez/optimize_nullscan.q.out e598191 > ql/src/test/results/clientpositive/tez/unionDistinct_1.q.out PRE-CREATION > ql/src/test/results/clientpositive/tez/unionDistinct_2.q.out PRE-CREATION > ql/src/test/results/clientpositive/union22.q.out 672fa77 > ql/src/test/results/clientpositive/union24.q.out 8755025 > ql/src/test/results/clientpositive/unionDistinct_1.q.out PRE-CREATION > ql/src/test/results/clientpositive/unionDistinct_2.q.out PRE-CREATION > ql/src/test/results/clientpositive/union_ppr.q.out 0610337 > > Diff: https://reviews.apache.org/r/28797/diff/ > > > Testing > ------- > > > Thanks, > > pengcheng xiong > >
