[
https://issues.apache.org/jira/browse/HIVE-20090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16542628#comment-16542628
]
Hive QA commented on HIVE-20090:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12931398/HIVE-20090.07.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 177 failed/errored test(s), 14651 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[dynamic_semijoin_user_level]
(batchId=153)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[explainuser_2]
(batchId=154)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_basic]
(batchId=150)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[auto_sortmerge_join_11]
(batchId=178)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[auto_sortmerge_join_16]
(batchId=170)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[bucketmapjoin1]
(batchId=178)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_gby]
(batchId=167)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_limit]
(batchId=179)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_rp_gby]
(batchId=173)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_rp_limit]
(batchId=169)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_rp_semijoin]
(batchId=158)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_semijoin]
(batchId=166)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_stats]
(batchId=159)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_subq_exists]
(batchId=176)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cbo_subq_in]
(batchId=163)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[check_constraint]
(batchId=160)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[column_access_stats]
(batchId=171)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[correlationoptimizer1]
(batchId=171)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[correlationoptimizer2]
(batchId=169)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[correlationoptimizer3]
(batchId=178)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[correlationoptimizer6]
(batchId=169)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cross_prod_3]
(batchId=156)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[cte_1]
(batchId=178)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[database]
(batchId=163)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_partition_pruning]
(batchId=163)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_semijoin_reduction]
(batchId=168)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_semijoin_reduction_2]
(batchId=175)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_semijoin_reduction_3]
(batchId=175)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_semijoin_reduction_4]
(batchId=164)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_semijoin_reduction_sw2]
(batchId=176)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[dynamic_semijoin_reduction_sw]
(batchId=157)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[explainanalyze_2]
(batchId=174)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[explainuser_1]
(batchId=165)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[groupby_groupingset_bug]
(batchId=178)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[hybridgrace_hashjoin_2]
(batchId=162)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[join32_lessSize]
(batchId=157)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[join_reordering_no_stats]
(batchId=172)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[limit_join_transpose]
(batchId=161)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[lineage2]
(batchId=170)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[lineage3]
(batchId=167)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[mapjoin_hint]
(batchId=165)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_rewrite_5]
(batchId=161)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_rewrite_6]
(batchId=174)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_rewrite_ssb]
(batchId=165)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[materialized_view_rewrite_ssb_2]
(batchId=170)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[mergejoin]
(batchId=171)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[mergejoin_3way]
(batchId=166)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[multiMapJoin1]
(batchId=168)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[multiMapJoin2]
(batchId=175)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[partialdhj]
(batchId=165)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[partition_shared_scan]
(batchId=159)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[reduce_deduplicate_extended]
(batchId=172)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[reopt_semijoin]
(batchId=178)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[results_cache_1]
(batchId=173)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[selectDistinctStar]
(batchId=175)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[semijoin]
(batchId=161)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[semijoin_hint]
(batchId=163)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[skewjoin]
(batchId=161)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[stats11]
(batchId=177)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_in]
(batchId=172)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_in_having]
(batchId=171)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_multi]
(batchId=160)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_nested_subquery]
(batchId=163)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_scalar]
(batchId=166)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_select]
(batchId=166)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_views]
(batchId=159)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[table_access_keys_stats]
(batchId=174)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_dynpart_hashjoin_2]
(batchId=165)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_dynpart_hashjoin_3]
(batchId=166)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_join_tests]
(batchId=177)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_joins_explain]
(batchId=166)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_smb_empty]
(batchId=165)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_smb_main]
(batchId=162)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[tez_vector_dynpart_hashjoin_2]
(batchId=162)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_mapjoin_reduce]
(batchId=176)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_windowing_gby2]
(batchId=173)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_windowing_gby]
(batchId=176)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorized_dynamic_partition_pruning]
(batchId=163)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorized_dynamic_semijoin_reduction2]
(batchId=167)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorized_dynamic_semijoin_reduction]
(batchId=157)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[windowing_gby]
(batchId=166)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[hybridgrace_hashjoin_2]
(batchId=106)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query10]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query11]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query12]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query13]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query14]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query15]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query16]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query17]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query18]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query19]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query1]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query20]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query21]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query22]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query23]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query24]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query25]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query26]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query27]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query29]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query2]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query30]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query31]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query32]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query33]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query34]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query35]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query36]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query37]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query38]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query39]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query3]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query40]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query42]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query43]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query45]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query46]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query47]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query48]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query49]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query4]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query50]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query51]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query52]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query53]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query54]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query55]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query56]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query57]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query58]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query59]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query5]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query60]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query61]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query63]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query64]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query65]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query66]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query67]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query68]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query69]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query6]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query70]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query71]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query72]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query73]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query74]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query75]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query76]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query77]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query78]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query79]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query7]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query80]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query81]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query82]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query83]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query84]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query85]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query86]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query87]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query88]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query89]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query8]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query90]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query91]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query92]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query93]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query94]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query95]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query96]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query97]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query98]
(batchId=262)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query99]
(batchId=262)
org.apache.hadoop.hive.ql.plan.mapping.TestOperatorCmp.testSameJoinMatched
(batchId=309)
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/12574/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/12574/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-12574/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 177 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12931398 - PreCommit-HIVE-Build
> Extend creation of semijoin reduction filters to be able to discover new
> opportunities
> --------------------------------------------------------------------------------------
>
> Key: HIVE-20090
> URL: https://issues.apache.org/jira/browse/HIVE-20090
> Project: Hive
> Issue Type: Improvement
> Components: Physical Optimizer
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Attachments: HIVE-20090.01.patch, HIVE-20090.02.patch,
> HIVE-20090.04.patch, HIVE-20090.05.patch, HIVE-20090.06.patch,
> HIVE-20090.07.patch
>
>
> Assume the following plan:
> {noformat}
> TS[0] - RS[1] - JOIN[4] - RS[5] - JOIN[8] - FS[9]
> TS[2] - RS[3] - JOIN[4]
> TS[6] - RS[7] - JOIN[8]
> {noformat}
> Currently, {{TS\[6\]}} may only be reduced with the output of {{RS\[5\]}},
> i.e., input to join between both subplans.
> However, it may be useful to consider other possibilities too, e.g., reduced
> by the output of {{RS\[1\]}} or {{RS\[3\]}}. For instance, this is important
> when, given a large plan, an edge between {{RS[5]}} and {{TS[0]}} would
> create a cycle, while an edge between {{RS[1]}} and {{TS[6]}} would not.
> This patch comprises two parts. First, it creates additional predicates when
> possible. Secondly, it removes duplicate semijoin reduction
> branches/predicates, e.g., if another semijoin that consumes the output of
> the same expression already reduces a certain table scan operator (heuristic,
> since this may not result in most efficient plan in all cases). Ultimately,
> the decision on whether to use one or another should be cost-driven
> (follow-up).
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