jcamachor commented on a change in pull request #1959:
URL: https://github.com/apache/hive/pull/1959#discussion_r583929715
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File path:
ql/src/test/results/clientpositive/perf/tpcds30tb/tez/cbo_query15.q.out
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@@ -15,6 +15,6 @@ HiveSortLimit(sort0=[$0], dir0=[ASC], fetch=[100])
HiveFilter(condition=[AND(IS NOT NULL($2), IS NOT NULL($33))])
HiveTableScan(table=[[default, catalog_sales]],
table:alias=[catalog_sales])
HiveProject(d_date_sk=[$0])
- HiveFilter(condition=[AND(=($6, 2000), =($10, 2))])
+ HiveFilter(condition=[AND(=($10, 2), =($6, 2000))])
Review comment:
The order in the filter conditions is determined by
`HiveFilterSortPredicates`. This change and other similar ones could happen due
to change in selectivity estimates for each of the conjuncts. We should double
check that these changes are expected. ^ @zabetak fyi
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