mirror of https://github.com/citusdata/citus.git
357 lines
16 KiB
Plaintext
357 lines
16 KiB
Plaintext
--
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-- MULTI_NULL_MINMAX_VALUE_PRUNING
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--
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-- This test checks that we can handle null min/max values in shard statistics
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-- and that we don't partition or join prune shards that have null values.
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CREATE SCHEMA multi_null_minmax_value_pruning;
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SET search_path TO multi_null_minmax_value_pruning;
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SET citus.explain_all_tasks TO on;
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SET citus.log_multi_join_order to true;
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SET citus.enable_repartition_joins to ON;
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SET citus.next_shard_id = 290000;
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CREATE TABLE lineitem (LIKE public.lineitem);
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SELECT create_distributed_table('lineitem', 'l_orderkey', 'range');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT master_create_empty_shard('lineitem') as lineitem_shardid1 \gset
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SELECT master_create_empty_shard('lineitem') as lineitem_shardid2 \gset
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CREATE TABLE orders (LIKE public.orders);
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SELECT create_distributed_table('orders', 'o_orderkey', 'range');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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SELECT master_create_empty_shard('orders') as orders_shardid1 \gset
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SELECT master_create_empty_shard('orders') as orders_shardid2 \gset
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SET client_min_messages TO DEBUG2;
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UPDATE pg_dist_shard SET shardminvalue = '1', shardmaxvalue = '6000' WHERE shardid = :lineitem_shardid1 OR shardid = :orders_shardid1;
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UPDATE pg_dist_shard SET shardminvalue = '6001', shardmaxvalue = '20000' WHERE shardid = :lineitem_shardid2 OR shardid = :orders_shardid2;
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UPDATE pg_dist_partition SET colocationid = 87091 WHERE logicalrelid = 'orders'::regclass OR logicalrelid = 'lineitem'::regclass;
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-- Check that partition and join pruning works when min/max values exist
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-- Adding l_orderkey = 1 to make the query not router executable
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SELECT public.coordinator_plan($Q$
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EXPLAIN (COSTS FALSE)
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SELECT l_orderkey, l_linenumber, l_shipdate FROM lineitem WHERE l_orderkey = 9030 or l_orderkey = 1;
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$Q$);
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DEBUG: Router planner cannot handle multi-shard select queries
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CONTEXT: PL/pgSQL function public.coordinator_plan(text) line XX at FOR over EXECUTE statement
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LOG: join order: [ "lineitem" ]
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CONTEXT: PL/pgSQL function public.coordinator_plan(text) line XX at FOR over EXECUTE statement
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coordinator_plan
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive)
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Task Count: 2
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(2 rows)
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EXPLAIN (COSTS FALSE)
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SELECT sum(l_linenumber), avg(l_linenumber) FROM lineitem, orders
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WHERE l_orderkey = o_orderkey;
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DEBUG: Router planner cannot handle multi-shard select queries
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LOG: join order: [ "lineitem" ][ local partition join "orders" ]
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DEBUG: join prunable for intervals [1,6000] and [6001,20000]
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DEBUG: join prunable for intervals [6001,20000] and [1,6000]
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QUERY PLAN
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---------------------------------------------------------------------
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Aggregate
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-> Custom Scan (Citus Adaptive)
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Task Count: 2
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Tasks Shown: All
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-> Task
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Node: host=localhost port=xxxxx dbname=regression
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-> Aggregate
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-> Hash Join
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Hash Cond: (orders.o_orderkey = lineitem.l_orderkey)
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-> Seq Scan on orders_290002 orders
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-> Hash
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-> Seq Scan on lineitem_290000 lineitem
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-> Task
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Node: host=localhost port=xxxxx dbname=regression
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-> Aggregate
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-> Hash Join
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Hash Cond: (orders.o_orderkey = lineitem.l_orderkey)
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-> Seq Scan on orders_290003 orders
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-> Hash
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-> Seq Scan on lineitem_290001 lineitem
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(20 rows)
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-- Now set the minimum value for a shard to null. Then check that we don't apply
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-- partition or join pruning for the shard with null min value. Since it is not
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-- supported with single-repartition join, dual-repartition has been used.
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UPDATE pg_dist_shard SET shardminvalue = NULL WHERE shardid = :lineitem_shardid1;
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SELECT public.coordinator_plan($Q$
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EXPLAIN (COSTS FALSE)
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SELECT l_orderkey, l_linenumber, l_shipdate FROM lineitem WHERE l_orderkey = 9030;
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$Q$);
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DEBUG: Router planner cannot handle multi-shard select queries
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CONTEXT: PL/pgSQL function public.coordinator_plan(text) line XX at FOR over EXECUTE statement
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LOG: join order: [ "lineitem" ]
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CONTEXT: PL/pgSQL function public.coordinator_plan(text) line XX at FOR over EXECUTE statement
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coordinator_plan
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive)
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Task Count: 2
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(2 rows)
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EXPLAIN (COSTS FALSE)
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SELECT sum(l_linenumber), avg(l_linenumber) FROM lineitem, orders
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WHERE l_partkey = o_custkey;
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DEBUG: Router planner cannot handle multi-shard select queries
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LOG: join order: [ "lineitem" ][ dual partition join "orders" ]
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DEBUG: join prunable for task partitionId 0 and 1
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DEBUG: join prunable for task partitionId 0 and 2
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DEBUG: join prunable for task partitionId 0 and 3
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DEBUG: join prunable for task partitionId 0 and 4
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DEBUG: join prunable for task partitionId 0 and 5
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DEBUG: join prunable for task partitionId 1 and 0
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DEBUG: join prunable for task partitionId 1 and 2
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DEBUG: join prunable for task partitionId 1 and 3
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DEBUG: join prunable for task partitionId 1 and 4
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DEBUG: join prunable for task partitionId 1 and 5
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DEBUG: join prunable for task partitionId 2 and 0
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DEBUG: join prunable for task partitionId 2 and 1
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DEBUG: join prunable for task partitionId 2 and 3
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DEBUG: join prunable for task partitionId 2 and 4
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DEBUG: join prunable for task partitionId 2 and 5
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DEBUG: join prunable for task partitionId 3 and 0
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DEBUG: join prunable for task partitionId 3 and 1
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DEBUG: join prunable for task partitionId 3 and 2
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DEBUG: join prunable for task partitionId 3 and 4
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DEBUG: join prunable for task partitionId 3 and 5
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DEBUG: join prunable for task partitionId 4 and 0
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DEBUG: join prunable for task partitionId 4 and 1
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DEBUG: join prunable for task partitionId 4 and 2
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DEBUG: join prunable for task partitionId 4 and 3
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DEBUG: join prunable for task partitionId 4 and 5
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DEBUG: join prunable for task partitionId 5 and 0
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DEBUG: join prunable for task partitionId 5 and 1
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DEBUG: join prunable for task partitionId 5 and 2
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DEBUG: join prunable for task partitionId 5 and 3
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DEBUG: join prunable for task partitionId 5 and 4
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DEBUG: pruning merge fetch taskId 1
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DETAIL: Creating dependency on merge taskId 3
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DEBUG: pruning merge fetch taskId 2
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DETAIL: Creating dependency on merge taskId 3
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DEBUG: pruning merge fetch taskId 4
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DETAIL: Creating dependency on merge taskId 6
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DEBUG: pruning merge fetch taskId 5
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DETAIL: Creating dependency on merge taskId 6
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DEBUG: pruning merge fetch taskId 7
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DETAIL: Creating dependency on merge taskId 9
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DEBUG: pruning merge fetch taskId 8
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DETAIL: Creating dependency on merge taskId 9
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DEBUG: pruning merge fetch taskId 10
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DETAIL: Creating dependency on merge taskId 12
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DEBUG: pruning merge fetch taskId 11
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DETAIL: Creating dependency on merge taskId 12
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DEBUG: pruning merge fetch taskId 13
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DETAIL: Creating dependency on merge taskId 15
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DEBUG: pruning merge fetch taskId 14
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DETAIL: Creating dependency on merge taskId 15
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DEBUG: pruning merge fetch taskId 16
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DETAIL: Creating dependency on merge taskId 18
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DEBUG: pruning merge fetch taskId 17
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DETAIL: Creating dependency on merge taskId 18
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QUERY PLAN
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---------------------------------------------------------------------
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Aggregate
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-> Custom Scan (Citus Adaptive)
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Task Count: 6
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Tasks Shown: None, not supported for re-partition queries
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-> MapMergeJob
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Map Task Count: 2
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Merge Task Count: 6
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-> MapMergeJob
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Map Task Count: 2
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Merge Task Count: 6
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(10 rows)
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-- Next, set the maximum value for another shard to null. Then check that we
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-- don't apply partition or join pruning for this other shard either. Since it
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-- is not supported with single-repartition join, dual-repartition has been used.
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UPDATE pg_dist_shard SET shardmaxvalue = NULL WHERE shardid = :lineitem_shardid2;
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SELECT public.coordinator_plan($Q$
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EXPLAIN (COSTS FALSE)
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SELECT l_orderkey, l_linenumber, l_shipdate FROM lineitem WHERE l_orderkey = 9030;
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$Q$);
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DEBUG: Router planner cannot handle multi-shard select queries
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CONTEXT: PL/pgSQL function public.coordinator_plan(text) line XX at FOR over EXECUTE statement
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LOG: join order: [ "lineitem" ]
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CONTEXT: PL/pgSQL function public.coordinator_plan(text) line XX at FOR over EXECUTE statement
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coordinator_plan
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive)
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Task Count: 2
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(2 rows)
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EXPLAIN (COSTS FALSE)
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SELECT sum(l_linenumber), avg(l_linenumber) FROM lineitem, orders
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WHERE l_partkey = o_custkey;
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DEBUG: Router planner cannot handle multi-shard select queries
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LOG: join order: [ "lineitem" ][ dual partition join "orders" ]
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DEBUG: join prunable for task partitionId 0 and 1
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DEBUG: join prunable for task partitionId 0 and 2
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DEBUG: join prunable for task partitionId 0 and 3
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DEBUG: join prunable for task partitionId 0 and 4
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DEBUG: join prunable for task partitionId 0 and 5
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DEBUG: join prunable for task partitionId 1 and 0
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DEBUG: join prunable for task partitionId 1 and 2
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DEBUG: join prunable for task partitionId 1 and 3
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DEBUG: join prunable for task partitionId 1 and 4
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DEBUG: join prunable for task partitionId 1 and 5
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DEBUG: join prunable for task partitionId 2 and 0
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DEBUG: join prunable for task partitionId 2 and 1
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DEBUG: join prunable for task partitionId 2 and 3
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DEBUG: join prunable for task partitionId 2 and 4
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DEBUG: join prunable for task partitionId 2 and 5
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DEBUG: join prunable for task partitionId 3 and 0
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DEBUG: join prunable for task partitionId 3 and 1
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DEBUG: join prunable for task partitionId 3 and 2
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DEBUG: join prunable for task partitionId 3 and 4
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DEBUG: join prunable for task partitionId 3 and 5
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DEBUG: join prunable for task partitionId 4 and 0
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DEBUG: join prunable for task partitionId 4 and 1
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DEBUG: join prunable for task partitionId 4 and 2
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DEBUG: join prunable for task partitionId 4 and 3
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DEBUG: join prunable for task partitionId 4 and 5
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DEBUG: join prunable for task partitionId 5 and 0
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DEBUG: join prunable for task partitionId 5 and 1
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DEBUG: join prunable for task partitionId 5 and 2
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DEBUG: join prunable for task partitionId 5 and 3
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DEBUG: join prunable for task partitionId 5 and 4
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DEBUG: pruning merge fetch taskId 1
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DETAIL: Creating dependency on merge taskId 3
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DEBUG: pruning merge fetch taskId 2
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DETAIL: Creating dependency on merge taskId 3
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DEBUG: pruning merge fetch taskId 4
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DETAIL: Creating dependency on merge taskId 6
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DEBUG: pruning merge fetch taskId 5
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DETAIL: Creating dependency on merge taskId 6
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DEBUG: pruning merge fetch taskId 7
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DETAIL: Creating dependency on merge taskId 9
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DEBUG: pruning merge fetch taskId 8
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DETAIL: Creating dependency on merge taskId 9
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DEBUG: pruning merge fetch taskId 10
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DETAIL: Creating dependency on merge taskId 12
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DEBUG: pruning merge fetch taskId 11
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DETAIL: Creating dependency on merge taskId 12
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DEBUG: pruning merge fetch taskId 13
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DETAIL: Creating dependency on merge taskId 15
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DEBUG: pruning merge fetch taskId 14
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DETAIL: Creating dependency on merge taskId 15
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DEBUG: pruning merge fetch taskId 16
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DETAIL: Creating dependency on merge taskId 18
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DEBUG: pruning merge fetch taskId 17
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DETAIL: Creating dependency on merge taskId 18
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QUERY PLAN
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---------------------------------------------------------------------
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Aggregate
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-> Custom Scan (Citus Adaptive)
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Task Count: 6
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Tasks Shown: None, not supported for re-partition queries
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-> MapMergeJob
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Map Task Count: 2
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Merge Task Count: 6
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-> MapMergeJob
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Map Task Count: 2
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Merge Task Count: 6
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(10 rows)
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-- Last, set the minimum value to 0 and check that we don't treat it as null. We
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-- should apply partition and join pruning for this shard now. Since it is not
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-- supported with single-repartition join, dual-repartition has been used.
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UPDATE pg_dist_shard SET shardminvalue = '0' WHERE shardid = :lineitem_shardid1;
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SELECT public.coordinator_plan($Q$
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EXPLAIN (COSTS FALSE)
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SELECT l_orderkey, l_linenumber, l_shipdate FROM lineitem WHERE l_orderkey = 9030;
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$Q$);
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DEBUG: Creating router plan
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CONTEXT: PL/pgSQL function public.coordinator_plan(text) line XX at FOR over EXECUTE statement
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coordinator_plan
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---------------------------------------------------------------------
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Custom Scan (Citus Adaptive)
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Task Count: 1
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(2 rows)
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EXPLAIN (COSTS FALSE)
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SELECT sum(l_linenumber), avg(l_linenumber) FROM lineitem, orders
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WHERE l_partkey = o_custkey;
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DEBUG: Router planner cannot handle multi-shard select queries
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LOG: join order: [ "lineitem" ][ dual partition join "orders" ]
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DEBUG: join prunable for task partitionId 0 and 1
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DEBUG: join prunable for task partitionId 0 and 2
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DEBUG: join prunable for task partitionId 0 and 3
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DEBUG: join prunable for task partitionId 0 and 4
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DEBUG: join prunable for task partitionId 0 and 5
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DEBUG: join prunable for task partitionId 1 and 0
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DEBUG: join prunable for task partitionId 1 and 2
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DEBUG: join prunable for task partitionId 1 and 3
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DEBUG: join prunable for task partitionId 1 and 4
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DEBUG: join prunable for task partitionId 1 and 5
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DEBUG: join prunable for task partitionId 2 and 0
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DEBUG: join prunable for task partitionId 2 and 1
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DEBUG: join prunable for task partitionId 2 and 3
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DEBUG: join prunable for task partitionId 2 and 4
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DEBUG: join prunable for task partitionId 2 and 5
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DEBUG: join prunable for task partitionId 3 and 0
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DEBUG: join prunable for task partitionId 3 and 1
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DEBUG: join prunable for task partitionId 3 and 2
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DEBUG: join prunable for task partitionId 3 and 4
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DEBUG: join prunable for task partitionId 3 and 5
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DEBUG: join prunable for task partitionId 4 and 0
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DEBUG: join prunable for task partitionId 4 and 1
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DEBUG: join prunable for task partitionId 4 and 2
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DEBUG: join prunable for task partitionId 4 and 3
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DEBUG: join prunable for task partitionId 4 and 5
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DEBUG: join prunable for task partitionId 5 and 0
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DEBUG: join prunable for task partitionId 5 and 1
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DEBUG: join prunable for task partitionId 5 and 2
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DEBUG: join prunable for task partitionId 5 and 3
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DEBUG: join prunable for task partitionId 5 and 4
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DEBUG: pruning merge fetch taskId 1
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DETAIL: Creating dependency on merge taskId 3
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DEBUG: pruning merge fetch taskId 2
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DETAIL: Creating dependency on merge taskId 3
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DEBUG: pruning merge fetch taskId 4
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DETAIL: Creating dependency on merge taskId 6
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DEBUG: pruning merge fetch taskId 5
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DETAIL: Creating dependency on merge taskId 6
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DEBUG: pruning merge fetch taskId 7
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DETAIL: Creating dependency on merge taskId 9
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DEBUG: pruning merge fetch taskId 8
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DETAIL: Creating dependency on merge taskId 9
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DEBUG: pruning merge fetch taskId 10
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DETAIL: Creating dependency on merge taskId 12
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DEBUG: pruning merge fetch taskId 11
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DETAIL: Creating dependency on merge taskId 12
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DEBUG: pruning merge fetch taskId 13
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DETAIL: Creating dependency on merge taskId 15
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DEBUG: pruning merge fetch taskId 14
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DETAIL: Creating dependency on merge taskId 15
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DEBUG: pruning merge fetch taskId 16
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DETAIL: Creating dependency on merge taskId 18
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DEBUG: pruning merge fetch taskId 17
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DETAIL: Creating dependency on merge taskId 18
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QUERY PLAN
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---------------------------------------------------------------------
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Aggregate
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-> Custom Scan (Citus Adaptive)
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Task Count: 6
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Tasks Shown: None, not supported for re-partition queries
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-> MapMergeJob
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Map Task Count: 2
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Merge Task Count: 6
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-> MapMergeJob
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Map Task Count: 2
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Merge Task Count: 6
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(10 rows)
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RESET client_min_messages;
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DROP SCHEMA multi_null_minmax_value_pruning CASCADE;
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NOTICE: drop cascades to 2 other objects
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DETAIL: drop cascades to table lineitem
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drop cascades to table orders
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