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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/26001/
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Review request for hive, Brock Noland and Xuefu Zhang.
Bugs: hive-8233
https://issues.apache.org/jira/browse/hive-8233
Repository: hive-git
Description
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Right now, for multi-table insertion, we will start from multiple
FileSinkOperators, and break from their lowest common ancestor, adding
temporary FileSinkOperator and TableScanOperators. A special case is when the
LCA is a ForwardOperator, in which case we don't break it, since it's already
been optimized.
However, there's a issue, considering the following plan:
...
RS_0
|
FOR
|
/ \
GBY_1 GBY_2
| |
... ...
| |
RS_1 RS_2
| |
... ...
| |
FS_1 FS_2
which may result to:
RW
/ \
RW RW
Hence, because of the issue in HIVE-7731 and HIVE-8118, both downstream
branches will get duplicated (and same) input.
Diffs
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itests/src/test/resources/testconfiguration.properties 637fbc1
ql/src/test/queries/clientpositive/spark_groupby7_noskew_multi_single_reducer.q
PRE-CREATION
ql/src/test/queries/clientpositive/spark_groupby8.q PRE-CREATION
ql/src/test/queries/clientpositive/spark_groupby8_map.q PRE-CREATION
ql/src/test/queries/clientpositive/spark_groupby8_map_skew.q PRE-CREATION
ql/src/test/queries/clientpositive/spark_groupby8_noskew.q PRE-CREATION
ql/src/test/queries/clientpositive/spark_groupby9.q PRE-CREATION
ql/src/test/queries/clientpositive/spark_groupby_multi_insert_common_distinct.q
PRE-CREATION
ql/src/test/queries/clientpositive/spark_union17.q PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_groupby7_noskew_multi_single_reducer.q.out
PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_groupby8.q.out PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_groupby8_map.q.out
PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_groupby8_map_skew.q.out
PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_groupby8_noskew.q.out
PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_groupby9.q.out PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_groupby_multi_insert_common_distinct.q.out
PRE-CREATION
ql/src/test/results/clientpositive/spark/spark_union17.q.out PRE-CREATION
Diff: https://reviews.apache.org/r/26001/diff/
Testing
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Thanks,
Chao Sun
