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Enable query_plan_remove_redundant_sorting optimization by default

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Igor Nikonov 2023-01-24 13:38:21 +00:00
parent 683b1b7dbb
commit 41b94b4954
2 changed files with 5 additions and 1 deletions
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2
src/Core/Settings.h
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@ -585,7 +585,7 @@ class IColumn;
M(Bool, query_plan_optimize_primary_key, true, "Analyze primary key using query plan (instead of AST)", 0) \
M(Bool, query_plan_read_in_order, true, "Use query plan for read-in-order optimisation", 0) \
M(Bool, query_plan_aggregation_in_order, true, "Use query plan for aggregation-in-order optimisation", 0) \
M(Bool, query_plan_remove_redundant_sorting, false, "Remove redundant sorting in query plan. For example, sorting steps related to ORDER BY clauses in subqueries", 0) \
M(Bool, query_plan_remove_redundant_sorting, true, "Remove redundant sorting in query plan. For example, sorting steps related to ORDER BY clauses in subqueries", 0) \
M(UInt64, regexp_max_matches_per_row, 1000, "Max matches of any single regexp per row, used to safeguard 'extractAllGroupsHorizontal' against consuming too much memory with greedy RE.", 0) \
\
M(UInt64, limit, 0, "Limit on read rows from the most 'end' result for select query, default 0 means no limit length", 0) \

4
tests/performance/sort.xml
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@ -1,4 +1,8 @@
<test>
<settings>
<query_plan_remove_redundant_sorting>0</query_plan_remove_redundant_sorting>
</settings>
<create_query>CREATE TABLE rand_unlimited_10m_8 (key UInt8) Engine = Memory</create_query>
<create_query>CREATE TABLE rand_1k_10m_16 (key UInt16) Engine = Memory</create_query>