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Merge pull request #1252 from citusdata/reproducible_costs 

Get reproducible costs between different PostgreSQL versions
pull/1248/head
Metin Döşlü 2017-02-22 16:04:21 +02:00 committed by GitHub
parent b8e4763a1a ee425871ee
commit e3e1436680
2 changed files with 15 additions and 4 deletions
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11
src/backend/distributed/planner/multi_master_planner.c
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@ -196,6 +196,11 @@ BuildAggregatePlan(Query *masterQuery, Plan *subPlan)
groupColumnOpArray, NIL, rowEstimate, subPlan); groupColumnOpArray, NIL, rowEstimate, subPlan);
#endif #endif
/* just for reproducible costs between different PostgreSQL versions */
aggregatePlan->plan.startup_cost = 0;
aggregatePlan->plan.total_cost = 0;
aggregatePlan->plan.plan_rows = 0;
return aggregatePlan; return aggregatePlan;
} }
@ -265,6 +270,12 @@ BuildSelectStatement(Query *masterQuery, char *masterTableName,
#else #else
Sort *sortPlan = make_sort_from_sortclauses(NULL, sortClauseList, topLevelPlan); Sort *sortPlan = make_sort_from_sortclauses(NULL, sortClauseList, topLevelPlan);
#endif #endif
/* just for reproducible costs between different PostgreSQL versions */
sortPlan->plan.startup_cost = 0;
sortPlan->plan.total_cost = 0;
sortPlan->plan.plan_rows = 0;
topLevelPlan = (Plan *) sortPlan; topLevelPlan = (Plan *) sortPlan;
} }

8
src/test/regress/output/multi_subquery_0.source
View File

@ -786,7 +786,7 @@ FROM
-> Seq Scan on events_270009 events (cost=0.00..11.79 rows=3 width=556) -> Seq Scan on events_270009 events (cost=0.00..11.79 rows=3 width=556)
Filter: ((event_type)::text = ANY ('{click,submit,pay}'::text[])) Filter: ((event_type)::text = ANY ('{click,submit,pay}'::text[]))
Master Query Master Query
-> Aggregate (cost=0.01..0.02 rows=1 width=0) -> Aggregate (cost=0.00..0.00 rows=0 width=0)
-> Seq Scan on pg_merge_job_270014 (cost=0.00..0.00 rows=0 width=0) -> Seq Scan on pg_merge_job_270014 (cost=0.00..0.00 rows=0 width=0)
(22 rows) (22 rows)
@ -892,7 +892,7 @@ GROUP BY
-> Seq Scan on events_270009 events_2 (cost=0.00..12.28 rows=1 width=32) -> Seq Scan on events_270009 events_2 (cost=0.00..12.28 rows=1 width=32)
Filter: ((composite_id >= '(1,-9223372036854775808)'::user_composite_type) AND (composite_id <= '(1,9223372036854775807)'::user_composite_type) AND ((event_type)::text = 'pay'::text)) Filter: ((composite_id >= '(1,-9223372036854775808)'::user_composite_type) AND (composite_id <= '(1,9223372036854775807)'::user_composite_type) AND ((event_type)::text = 'pay'::text))
Master Query Master Query
-> HashAggregate (cost=0.00..0.18 rows=10 width=0) -> HashAggregate (cost=0.00..0.00 rows=0 width=0)
Group Key: intermediate_column_270015_2 Group Key: intermediate_column_270015_2
-> Seq Scan on pg_merge_job_270015 (cost=0.00..0.00 rows=0 width=0) -> Seq Scan on pg_merge_job_270015 (cost=0.00..0.00 rows=0 width=0)
(40 rows) (40 rows)
@ -1046,8 +1046,8 @@ LIMIT
-> Seq Scan on events_270009 events (cost=0.00..11.95 rows=1 width=524) -> Seq Scan on events_270009 events (cost=0.00..11.95 rows=1 width=524)
Filter: (((composite_id).tenant_id = ((users.composite_id).tenant_id)) AND ((composite_id).user_id = ((users.composite_id).user_id))) Filter: (((composite_id).tenant_id = ((users.composite_id).tenant_id)) AND ((composite_id).user_id = ((users.composite_id).user_id)))
Master Query Master Query
-> Limit (cost=0.01..0.02 rows=0 width=0) -> Limit (cost=0.00..0.00 rows=0 width=0)
-> Sort (cost=0.01..0.02 rows=0 width=0) -> Sort (cost=0.00..0.00 rows=0 width=0)
Sort Key: intermediate_column_270017_2 DESC Sort Key: intermediate_column_270017_2 DESC
-> Seq Scan on pg_merge_job_270017 (cost=0.00..0.00 rows=0 width=0) -> Seq Scan on pg_merge_job_270017 (cost=0.00..0.00 rows=0 width=0)
(29 rows) (29 rows)