HIVE-28170: Implement drop stats#6391
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soumyakanti3578 wants to merge 14 commits intoapache:masterfrom
Open
HIVE-28170: Implement drop stats#6391soumyakanti3578 wants to merge 14 commits intoapache:masterfrom
soumyakanti3578 wants to merge 14 commits intoapache:masterfrom
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…S to HiveOperationType to fix TestHiveOperationType
…ROP STATISTICS FOR COLUMNS [optional list of columns];
asf-ci-hive
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tests pending
tests unstable
and removed
tests pending
tests unstable
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kasakrisz
reviewed
Mar 30, 2026
| * ALTER TABLE src_stat DROP STATISTICS for columns; | ||
| */ | ||
| @Explain(displayName = "Column Stats Drop Work", explainLevels = {Level.USER, Level.DEFAULT, Level.EXTENDED}) | ||
| public record ColumnStatsDropWork(String dbName, String tableName) implements Serializable { |
Contributor
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Can TableName used here?
Comment on lines
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| insert into test_stats (a, b, c) values ("a", 2, 1.1); | ||
| insert into test_stats (a, b, c) values ("b", 2, 2.1); | ||
| insert into test_stats (a, b, c) values ("c", 2, 2.1); | ||
| insert into test_stats (a, b, c) values ("d", 2, 3.1); | ||
| insert into test_stats (a, b, c) values ("e", 2, 3.1); | ||
| insert into test_stats (a, b, c) values ("f", 2, 4.1); | ||
| insert into test_stats (a, b, c) values ("g", 2, 5.1); | ||
| insert into test_stats (a, b, c) values ("h", 2, 6.1); | ||
| insert into test_stats (a, b, c) values ("i", 3, 6.1); |
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Is it enough to have only 2 inserts?
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What changes were proposed in this pull request?
Implements drop stats for columns. There is an earlier PR for this: #5721 - its review comments have been addressed in this PR.
Why are the changes needed?
https://issues.apache.org/jira/browse/HIVE-28170
Does this PR introduce any user-facing change?
No, except the new feature of dropping column stats.
How was this patch tested?