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Hive >> mail # dev >> Review Request: HIVE-4119: ANALYZE TABLE ... COMPUTE STATISTICS FOR COLUMNS fails with NPE if the table is empty


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Shreepadma Venugopalan 2013-03-14, 20:53
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Carl Steinbach 2013-03-22, 08:19
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Shreepadma Venugopalan 2013-03-23, 01:32
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Re: Review Request: HIVE-4119: ANALYZE TABLE ... COMPUTE STATISTICS FOR COLUMNS fails with NPE if the table is empty

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/9929/
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(Updated March 23, 2013, 1:32 a.m.)
Review request for hive.
Changes
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Addresses review comments from revision # 1.
Description
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Enhances the column stats UDF and column stats task to handle empty tables. Adds new q file tests.
This addresses bug HIVE-4119.
    https://issues.apache.org/jira/browse/HIVE-4119
Diffs (updated)
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  ql/src/java/org/apache/hadoop/hive/ql/exec/ColumnStatsTask.java de28766
  ql/src/java/org/apache/hadoop/hive/ql/plan/ColumnStatsWork.java 0e3846e
  ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFComputeStats.java e09efb7
  ql/src/test/queries/clientpositive/columnstats_tbllvl.q 187e8be
  ql/src/test/queries/clientpositive/compute_stats_empty_table.q PRE-CREATION
  ql/src/test/results/clientpositive/columnstats_tbllvl.q.out 3390ca0
  ql/src/test/results/clientpositive/compute_stats_empty_table.q.out PRE-CREATION

Diff: https://reviews.apache.org/r/9929/diff/
Testing
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Adds new q file tests which test column stats against an empty table.
Thanks,

Shreepadma Venugopalan