deniskuzZ commented on code in PR #5648:
URL: https://github.com/apache/hive/pull/5648#discussion_r2003624978
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iceberg/iceberg-handler/src/test/results/positive/delete_iceberg_copy_on_write_partitioned.q.out:
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@@ -121,140 +121,140 @@ STAGE PLANS:
Map Operator Tree:
TableScan
alias: tbl_ice
- Statistics: Num rows: 6 Data size: 582 Basic stats: COMPLETE
Column stats: COMPLETE
+ Statistics: Num rows: 6 Data size: 588 Basic stats: COMPLETE
Column stats: PARTIAL
Review Comment:
after the update/delete Hive doesn't recompute stats and on the next insert
it only writes stats generated by that insert since prev stats is not
accurate/no stats for prev snapshot. However, we had a bug and did a fallback
to HMS and used whatever was previously stored there (no snapshot id
validation, similar to ACID writeIds)
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