mirror of https://github.com/citusdata/citus.git
871 lines
37 KiB
Plaintext
871 lines
37 KiB
Plaintext
--
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-- MULTI_MX_EXPLAIN
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--
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ALTER SEQUENCE pg_catalog.pg_dist_shardid_seq RESTART 1320000;
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\c - - - :worker_1_port
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\c - - - :worker_2_port
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\c - - - :master_port
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\a\t
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SET citus.task_executor_type TO 'real-time';
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SET citus.explain_distributed_queries TO on;
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VACUUM ANALYZE lineitem_mx;
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VACUUM ANALYZE orders_mx;
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VACUUM ANALYZE customer_mx;
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VACUUM ANALYZE supplier_mx;
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\c - - - :worker_1_port
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-- Function that parses explain output as JSON
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CREATE FUNCTION explain_json(query text)
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RETURNS jsonb
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AS $BODY$
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DECLARE
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result jsonb;
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BEGIN
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EXECUTE format('EXPLAIN (FORMAT JSON) %s', query) INTO result;
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RETURN result;
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END;
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$BODY$ LANGUAGE plpgsql;
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-- Function that parses explain output as XML
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CREATE FUNCTION explain_xml(query text)
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RETURNS xml
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AS $BODY$
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DECLARE
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result xml;
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BEGIN
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EXECUTE format('EXPLAIN (FORMAT XML) %s', query) INTO result;
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RETURN result;
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END;
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$BODY$ LANGUAGE plpgsql;
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\c - - - :worker_2_port
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-- Function that parses explain output as JSON
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CREATE FUNCTION explain_json(query text)
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RETURNS jsonb
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AS $BODY$
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DECLARE
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result jsonb;
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BEGIN
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EXECUTE format('EXPLAIN (FORMAT JSON) %s', query) INTO result;
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RETURN result;
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END;
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$BODY$ LANGUAGE plpgsql;
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-- Function that parses explain output as XML
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CREATE FUNCTION explain_xml(query text)
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RETURNS xml
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AS $BODY$
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DECLARE
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result xml;
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BEGIN
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EXECUTE format('EXPLAIN (FORMAT XML) %s', query) INTO result;
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RETURN result;
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END;
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$BODY$ LANGUAGE plpgsql;
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-- Test Text format
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EXPLAIN (COSTS FALSE, FORMAT TEXT)
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SELECT l_quantity, count(*) count_quantity FROM lineitem_mx
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GROUP BY l_quantity ORDER BY count_quantity, l_quantity;
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Sort
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Sort Key: COALESCE((pg_catalog.sum((COALESCE((pg_catalog.sum(remote_scan.count_quantity))::bigint, '0'::bigint))))::bigint, '0'::bigint), remote_scan.l_quantity
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-> HashAggregate
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Group Key: remote_scan.l_quantity
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-> Custom Scan (Citus Real-Time)
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Task Count: 16
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Tasks Shown: One of 16
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> HashAggregate
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Group Key: l_quantity
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-> Seq Scan on lineitem_mx_1220052 lineitem_mx
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-- Test JSON format
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EXPLAIN (COSTS FALSE, FORMAT JSON)
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SELECT l_quantity, count(*) count_quantity FROM lineitem_mx
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GROUP BY l_quantity ORDER BY count_quantity, l_quantity;
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[
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{
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"Plan": {
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"Node Type": "Sort",
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"Parallel Aware": false,
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"Sort Key": ["COALESCE((pg_catalog.sum((COALESCE((pg_catalog.sum(remote_scan.count_quantity))::bigint, '0'::bigint))))::bigint, '0'::bigint)", "remote_scan.l_quantity"],
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"Plans": [
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{
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"Node Type": "Aggregate",
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"Strategy": "Hashed",
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"Partial Mode": "Simple",
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"Parent Relationship": "Outer",
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"Parallel Aware": false,
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"Group Key": ["remote_scan.l_quantity"],
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"Plans": [
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{
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"Node Type": "Custom Scan",
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"Parent Relationship": "Outer",
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"Custom Plan Provider": "Citus Real-Time",
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"Parallel Aware": false,
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"Distributed Query": {
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"Job": {
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"Task Count": 16,
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"Tasks Shown": "One of 16",
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"Tasks": [
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{
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"Node": "host=localhost port=57637 dbname=regression",
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"Remote Plan": [
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[
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{
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"Plan": {
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"Node Type": "Aggregate",
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"Strategy": "Hashed",
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"Partial Mode": "Simple",
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"Parallel Aware": false,
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"Group Key": ["l_quantity"],
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"Plans": [
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{
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"Node Type": "Seq Scan",
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"Parent Relationship": "Outer",
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"Parallel Aware": false,
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"Relation Name": "lineitem_mx_1220052",
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"Alias": "lineitem_mx"
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}
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]
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}
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}
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]
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]
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}
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]
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}
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}
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}
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]
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}
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]
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}
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}
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]
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-- Validate JSON format
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SELECT true AS valid FROM explain_json($$
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SELECT l_quantity, count(*) count_quantity FROM lineitem_mx
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GROUP BY l_quantity ORDER BY count_quantity, l_quantity$$);
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t
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\c - - - :worker_1_port
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-- Test XML format
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EXPLAIN (COSTS FALSE, FORMAT XML)
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SELECT l_quantity, count(*) count_quantity FROM lineitem_mx
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GROUP BY l_quantity ORDER BY count_quantity, l_quantity;
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<explain xmlns="http://www.postgresql.org/2009/explain">
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<Query>
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<Plan>
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<Node-Type>Sort</Node-Type>
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<Parallel-Aware>false</Parallel-Aware>
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<Sort-Key>
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<Item>COALESCE((pg_catalog.sum((COALESCE((pg_catalog.sum(remote_scan.count_quantity))::bigint, '0'::bigint))))::bigint, '0'::bigint)</Item>
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<Item>remote_scan.l_quantity</Item>
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</Sort-Key>
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<Plans>
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<Plan>
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<Node-Type>Aggregate</Node-Type>
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<Strategy>Hashed</Strategy>
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<Partial-Mode>Simple</Partial-Mode>
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<Parent-Relationship>Outer</Parent-Relationship>
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<Parallel-Aware>false</Parallel-Aware>
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<Group-Key>
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<Item>remote_scan.l_quantity</Item>
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</Group-Key>
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<Plans>
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<Plan>
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<Node-Type>Custom Scan</Node-Type>
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<Parent-Relationship>Outer</Parent-Relationship>
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<Custom-Plan-Provider>Citus Real-Time</Custom-Plan-Provider>
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<Parallel-Aware>false</Parallel-Aware>
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<Distributed-Query>
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<Job>
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<Task-Count>16</Task-Count>
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<Tasks-Shown>One of 16</Tasks-Shown>
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<Tasks>
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<Task>
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<Node>host=localhost port=57637 dbname=regression</Node>
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<Remote-Plan>
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<explain xmlns="http://www.postgresql.org/2009/explain">
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<Query>
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<Plan>
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<Node-Type>Aggregate</Node-Type>
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<Strategy>Hashed</Strategy>
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<Partial-Mode>Simple</Partial-Mode>
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<Parallel-Aware>false</Parallel-Aware>
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<Group-Key>
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<Item>l_quantity</Item>
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</Group-Key>
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<Plans>
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<Plan>
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<Node-Type>Seq Scan</Node-Type>
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<Parent-Relationship>Outer</Parent-Relationship>
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<Parallel-Aware>false</Parallel-Aware>
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<Relation-Name>lineitem_mx_1220052</Relation-Name>
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<Alias>lineitem_mx</Alias>
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</Plan>
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</Plans>
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</Plan>
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</Query>
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</explain>
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</Remote-Plan>
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</Task>
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</Tasks>
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</Job>
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</Distributed-Query>
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</Plan>
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</Plans>
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</Plan>
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</Plans>
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</Plan>
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</Query>
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</explain>
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-- Validate XML format
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SELECT true AS valid FROM explain_xml($$
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SELECT l_quantity, count(*) count_quantity FROM lineitem_mx
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GROUP BY l_quantity ORDER BY count_quantity, l_quantity$$);
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t
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-- Test YAML format
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EXPLAIN (COSTS FALSE, FORMAT YAML)
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SELECT l_quantity, count(*) count_quantity FROM lineitem_mx
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GROUP BY l_quantity ORDER BY count_quantity, l_quantity;
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- Plan:
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Node Type: "Sort"
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Parallel Aware: false
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Sort Key:
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- "COALESCE((pg_catalog.sum((COALESCE((pg_catalog.sum(remote_scan.count_quantity))::bigint, '0'::bigint))))::bigint, '0'::bigint)"
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- "remote_scan.l_quantity"
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Plans:
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- Node Type: "Aggregate"
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Strategy: "Hashed"
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Partial Mode: "Simple"
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Parent Relationship: "Outer"
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Parallel Aware: false
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Group Key:
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- "remote_scan.l_quantity"
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Plans:
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- Node Type: "Custom Scan"
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Parent Relationship: "Outer"
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Custom Plan Provider: "Citus Real-Time"
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Parallel Aware: false
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Distributed Query:
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Job:
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Task Count: 16
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Tasks Shown: "One of 16"
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Tasks:
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- Node: "host=localhost port=57637 dbname=regression"
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Remote Plan:
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- Plan:
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Node Type: "Aggregate"
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Strategy: "Hashed"
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Partial Mode: "Simple"
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Parallel Aware: false
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Group Key:
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- "l_quantity"
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Plans:
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- Node Type: "Seq Scan"
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Parent Relationship: "Outer"
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Parallel Aware: false
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Relation Name: "lineitem_mx_1220052"
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Alias: "lineitem_mx"
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-- Test Text format
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EXPLAIN (COSTS FALSE, FORMAT TEXT)
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SELECT l_quantity, count(*) count_quantity FROM lineitem_mx
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GROUP BY l_quantity ORDER BY count_quantity, l_quantity;
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Sort
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Sort Key: COALESCE((pg_catalog.sum((COALESCE((pg_catalog.sum(remote_scan.count_quantity))::bigint, '0'::bigint))))::bigint, '0'::bigint), remote_scan.l_quantity
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-> HashAggregate
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Group Key: remote_scan.l_quantity
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-> Custom Scan (Citus Real-Time)
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Task Count: 16
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Tasks Shown: One of 16
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> HashAggregate
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Group Key: l_quantity
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-> Seq Scan on lineitem_mx_1220052 lineitem_mx
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\c - - - :worker_2_port
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-- Test verbose
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EXPLAIN (COSTS FALSE, VERBOSE TRUE)
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SELECT sum(l_quantity) / avg(l_quantity) FROM lineitem_mx;
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Aggregate
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Output: (sum(remote_scan."?column?") / (sum(remote_scan."?column?_1") / pg_catalog.sum(remote_scan."?column?_2")))
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-> Custom Scan (Citus Real-Time)
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Output: remote_scan."?column?", remote_scan."?column?_1", remote_scan."?column?_2"
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Task Count: 16
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Tasks Shown: One of 16
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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Output: sum(l_quantity), sum(l_quantity), count(l_quantity)
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-> Seq Scan on public.lineitem_mx_1220052 lineitem_mx
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Output: l_orderkey, l_partkey, l_suppkey, l_linenumber, l_quantity, l_extendedprice, l_discount, l_tax, l_returnflag, l_linestatus, l_shipdate, l_commitdate, l_receiptdate, l_shipinstruct, l_shipmode, l_comment
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-- Test join
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EXPLAIN (COSTS FALSE)
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SELECT * FROM lineitem_mx
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JOIN orders_mx ON l_orderkey = o_orderkey AND l_quantity < 5.0
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ORDER BY l_quantity LIMIT 10;
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Limit
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-> Sort
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Sort Key: remote_scan.l_quantity
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-> Custom Scan (Citus Real-Time)
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Task Count: 16
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Tasks Shown: One of 16
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Limit
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-> Sort
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Sort Key: lineitem_mx.l_quantity
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-> Hash Join
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Hash Cond: (lineitem_mx.l_orderkey = orders_mx.o_orderkey)
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-> Seq Scan on lineitem_mx_1220052 lineitem_mx
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Filter: (l_quantity < 5.0)
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-> Hash
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-> Seq Scan on orders_mx_1220068 orders_mx
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-- Test insert
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EXPLAIN (COSTS FALSE)
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INSERT INTO lineitem_mx VALUES(1,0);
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Custom Scan (Citus Router)
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Task Count: 1
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Tasks Shown: All
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Insert on lineitem_mx_1220052
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-> Result
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-- Test update
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EXPLAIN (COSTS FALSE)
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UPDATE lineitem_mx
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SET l_suppkey = 12
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WHERE l_orderkey = 1 AND l_partkey = 0;
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Custom Scan (Citus Router)
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Task Count: 1
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Tasks Shown: All
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Update on lineitem_mx_1220052 lineitem_mx
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-> Index Scan using lineitem_mx_pkey_1220052 on lineitem_mx_1220052 lineitem_mx
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Index Cond: (l_orderkey = 1)
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Filter: (l_partkey = 0)
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-- Test delete
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EXPLAIN (COSTS FALSE)
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DELETE FROM lineitem_mx
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WHERE l_orderkey = 1 AND l_partkey = 0;
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Custom Scan (Citus Router)
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Task Count: 1
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Tasks Shown: All
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Delete on lineitem_mx_1220052 lineitem_mx
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-> Index Scan using lineitem_mx_pkey_1220052 on lineitem_mx_1220052 lineitem_mx
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Index Cond: (l_orderkey = 1)
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Filter: (l_partkey = 0)
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-- make the outputs more consistent
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VACUUM ANALYZE lineitem_mx;
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VACUUM ANALYZE orders_mx;
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VACUUM ANALYZE customer_mx;
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VACUUM ANALYZE supplier_mx;
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-- Test single-shard SELECT
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EXPLAIN (COSTS FALSE)
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SELECT l_quantity FROM lineitem_mx WHERE l_orderkey = 5;
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Custom Scan (Citus Router)
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Task Count: 1
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Tasks Shown: All
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Index Scan using lineitem_mx_pkey_1220055 on lineitem_mx_1220055 lineitem_mx
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Index Cond: (l_orderkey = 5)
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SELECT true AS valid FROM explain_xml($$
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SELECT l_quantity FROM lineitem_mx WHERE l_orderkey = 5$$);
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t
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SELECT true AS valid FROM explain_json($$
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SELECT l_quantity FROM lineitem_mx WHERE l_orderkey = 5$$);
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t
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-- Test CREATE TABLE ... AS
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EXPLAIN (COSTS FALSE)
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CREATE TABLE explain_result AS
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SELECT * FROM lineitem_mx;
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Custom Scan (Citus Real-Time)
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Task Count: 16
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Tasks Shown: One of 16
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Seq Scan on lineitem_mx_1220052 lineitem_mx
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-- Test all tasks output
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SET citus.explain_all_tasks TO on;
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EXPLAIN (COSTS FALSE)
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SELECT avg(l_linenumber) FROM lineitem_mx WHERE l_orderkey > 9030;
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Aggregate
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-> Custom Scan (Citus Real-Time)
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Task Count: 16
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Tasks Shown: All
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220052 on lineitem_mx_1220052 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220053 on lineitem_mx_1220053 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220054 on lineitem_mx_1220054 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220055 on lineitem_mx_1220055 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220056 on lineitem_mx_1220056 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220057 on lineitem_mx_1220057 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220058 on lineitem_mx_1220058 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220059 on lineitem_mx_1220059 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220060 on lineitem_mx_1220060 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220061 on lineitem_mx_1220061 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220062 on lineitem_mx_1220062 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220063 on lineitem_mx_1220063 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220064 on lineitem_mx_1220064 lineitem_mx
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Index Cond: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57638 dbname=regression
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-> Aggregate
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-> Seq Scan on lineitem_mx_1220065 lineitem_mx
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Filter: (l_orderkey > 9030)
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-> Task
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Node: host=localhost port=57637 dbname=regression
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-> Aggregate
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-> Index Only Scan using lineitem_mx_pkey_1220066 on lineitem_mx_1220066 lineitem_mx
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|
Index Cond: (l_orderkey > 9030)
|
|
-> Task
|
|
Node: host=localhost port=57638 dbname=regression
|
|
-> Aggregate
|
|
-> Index Only Scan using lineitem_mx_pkey_1220067 on lineitem_mx_1220067 lineitem_mx
|
|
Index Cond: (l_orderkey > 9030)
|
|
SELECT true AS valid FROM explain_xml($$
|
|
SELECT avg(l_linenumber) FROM lineitem_mx WHERE l_orderkey > 9030$$);
|
|
t
|
|
SELECT true AS valid FROM explain_json($$
|
|
SELECT avg(l_linenumber) FROM lineitem_mx WHERE l_orderkey > 9030$$);
|
|
t
|
|
-- Test track tracker
|
|
SET citus.task_executor_type TO 'task-tracker';
|
|
SET citus.explain_all_tasks TO off;
|
|
EXPLAIN (COSTS FALSE)
|
|
SELECT avg(l_linenumber) FROM lineitem_mx WHERE l_orderkey > 9030;
|
|
Aggregate
|
|
-> Custom Scan (Citus Task-Tracker)
|
|
Task Count: 16
|
|
Tasks Shown: One of 16
|
|
-> Task
|
|
Node: host=localhost port=57637 dbname=regression
|
|
-> Aggregate
|
|
-> Index Only Scan using lineitem_mx_pkey_1220052 on lineitem_mx_1220052 lineitem_mx
|
|
Index Cond: (l_orderkey > 9030)
|
|
-- Test re-partition join
|
|
SET citus.large_table_shard_count TO 1;
|
|
EXPLAIN (COSTS FALSE)
|
|
SELECT count(*)
|
|
FROM lineitem_mx, orders_mx, customer_mx, supplier_mx
|
|
WHERE l_orderkey = o_orderkey
|
|
AND o_custkey = c_custkey
|
|
AND l_suppkey = s_suppkey;
|
|
Aggregate
|
|
-> Custom Scan (Citus Task-Tracker)
|
|
Task Count: 16
|
|
Tasks Shown: One of 16
|
|
-> Task
|
|
Node: host=localhost port=57637 dbname=regression
|
|
-> Aggregate
|
|
-> Hash Join
|
|
Hash Cond: (lineitem_mx.l_orderkey = orders_mx.o_orderkey)
|
|
-> Hash Join
|
|
Hash Cond: (supplier_mx.s_suppkey = lineitem_mx.l_suppkey)
|
|
-> Seq Scan on supplier_mx_1220087 supplier_mx
|
|
-> Hash
|
|
-> Seq Scan on lineitem_mx_1220052 lineitem_mx
|
|
-> Hash
|
|
-> Hash Join
|
|
Hash Cond: (customer_mx.c_custkey = orders_mx.o_custkey)
|
|
-> Seq Scan on customer_mx_1220084 customer_mx
|
|
-> Hash
|
|
-> Seq Scan on orders_mx_1220068 orders_mx
|
|
EXPLAIN (COSTS FALSE, FORMAT JSON)
|
|
SELECT count(*)
|
|
FROM lineitem_mx, orders_mx, customer_mx, supplier_mx
|
|
WHERE l_orderkey = o_orderkey
|
|
AND o_custkey = c_custkey
|
|
AND l_suppkey = s_suppkey;
|
|
[
|
|
{
|
|
"Plan": {
|
|
"Node Type": "Aggregate",
|
|
"Strategy": "Plain",
|
|
"Partial Mode": "Simple",
|
|
"Parallel Aware": false,
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Custom Scan",
|
|
"Parent Relationship": "Outer",
|
|
"Custom Plan Provider": "Citus Task-Tracker",
|
|
"Parallel Aware": false,
|
|
"Distributed Query": {
|
|
"Job": {
|
|
"Task Count": 16,
|
|
"Tasks Shown": "One of 16",
|
|
"Tasks": [
|
|
{
|
|
"Node": "host=localhost port=57637 dbname=regression",
|
|
"Remote Plan": [
|
|
[
|
|
{
|
|
"Plan": {
|
|
"Node Type": "Aggregate",
|
|
"Strategy": "Plain",
|
|
"Partial Mode": "Simple",
|
|
"Parallel Aware": false,
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Hash Join",
|
|
"Parent Relationship": "Outer",
|
|
"Parallel Aware": false,
|
|
"Join Type": "Inner",
|
|
"Hash Cond": "(lineitem_mx.l_orderkey = orders_mx.o_orderkey)",
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Hash Join",
|
|
"Parent Relationship": "Outer",
|
|
"Parallel Aware": false,
|
|
"Join Type": "Inner",
|
|
"Hash Cond": "(supplier_mx.s_suppkey = lineitem_mx.l_suppkey)",
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Seq Scan",
|
|
"Parent Relationship": "Outer",
|
|
"Parallel Aware": false,
|
|
"Relation Name": "supplier_mx_1220087",
|
|
"Alias": "supplier_mx"
|
|
},
|
|
{
|
|
"Node Type": "Hash",
|
|
"Parent Relationship": "Inner",
|
|
"Parallel Aware": false,
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Seq Scan",
|
|
"Parent Relationship": "Outer",
|
|
"Parallel Aware": false,
|
|
"Relation Name": "lineitem_mx_1220052",
|
|
"Alias": "lineitem_mx"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"Node Type": "Hash",
|
|
"Parent Relationship": "Inner",
|
|
"Parallel Aware": false,
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Hash Join",
|
|
"Parent Relationship": "Outer",
|
|
"Parallel Aware": false,
|
|
"Join Type": "Inner",
|
|
"Hash Cond": "(customer_mx.c_custkey = orders_mx.o_custkey)",
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Seq Scan",
|
|
"Parent Relationship": "Outer",
|
|
"Parallel Aware": false,
|
|
"Relation Name": "customer_mx_1220084",
|
|
"Alias": "customer_mx"
|
|
},
|
|
{
|
|
"Node Type": "Hash",
|
|
"Parent Relationship": "Inner",
|
|
"Parallel Aware": false,
|
|
"Plans": [
|
|
{
|
|
"Node Type": "Seq Scan",
|
|
"Parent Relationship": "Outer",
|
|
"Parallel Aware": false,
|
|
"Relation Name": "orders_mx_1220068",
|
|
"Alias": "orders_mx"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
|
|
]
|
|
}
|
|
]
|
|
}
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
SELECT true AS valid FROM explain_json($$
|
|
SELECT count(*)
|
|
FROM lineitem_mx, orders_mx, customer_mx, supplier_mx
|
|
WHERE l_orderkey = o_orderkey
|
|
AND o_custkey = c_custkey
|
|
AND l_suppkey = s_suppkey$$);
|
|
t
|
|
EXPLAIN (COSTS FALSE, FORMAT XML)
|
|
SELECT count(*)
|
|
FROM lineitem_mx, orders_mx, customer_mx, supplier_mx
|
|
WHERE l_orderkey = o_orderkey
|
|
AND o_custkey = c_custkey
|
|
AND l_suppkey = s_suppkey;
|
|
<explain xmlns="http://www.postgresql.org/2009/explain">
|
|
<Query>
|
|
<Plan>
|
|
<Node-Type>Aggregate</Node-Type>
|
|
<Strategy>Plain</Strategy>
|
|
<Partial-Mode>Simple</Partial-Mode>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Custom Scan</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Custom-Plan-Provider>Citus Task-Tracker</Custom-Plan-Provider>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Distributed-Query>
|
|
<Job>
|
|
<Task-Count>16</Task-Count>
|
|
<Tasks-Shown>One of 16</Tasks-Shown>
|
|
<Tasks>
|
|
<Task>
|
|
<Node>host=localhost port=57637 dbname=regression</Node>
|
|
<Remote-Plan>
|
|
<explain xmlns="http://www.postgresql.org/2009/explain">
|
|
<Query>
|
|
<Plan>
|
|
<Node-Type>Aggregate</Node-Type>
|
|
<Strategy>Plain</Strategy>
|
|
<Partial-Mode>Simple</Partial-Mode>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Hash Join</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Join-Type>Inner</Join-Type>
|
|
<Hash-Cond>(lineitem_mx.l_orderkey = orders_mx.o_orderkey)</Hash-Cond>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Hash Join</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Join-Type>Inner</Join-Type>
|
|
<Hash-Cond>(supplier_mx.s_suppkey = lineitem_mx.l_suppkey)</Hash-Cond>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Seq Scan</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Relation-Name>supplier_mx_1220087</Relation-Name>
|
|
<Alias>supplier_mx</Alias>
|
|
</Plan>
|
|
<Plan>
|
|
<Node-Type>Hash</Node-Type>
|
|
<Parent-Relationship>Inner</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Seq Scan</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Relation-Name>lineitem_mx_1220052</Relation-Name>
|
|
<Alias>lineitem_mx</Alias>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
<Plan>
|
|
<Node-Type>Hash</Node-Type>
|
|
<Parent-Relationship>Inner</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Hash Join</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Join-Type>Inner</Join-Type>
|
|
<Hash-Cond>(customer_mx.c_custkey = orders_mx.o_custkey)</Hash-Cond>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Seq Scan</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Relation-Name>customer_mx_1220084</Relation-Name>
|
|
<Alias>customer_mx</Alias>
|
|
</Plan>
|
|
<Plan>
|
|
<Node-Type>Hash</Node-Type>
|
|
<Parent-Relationship>Inner</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Plans>
|
|
<Plan>
|
|
<Node-Type>Seq Scan</Node-Type>
|
|
<Parent-Relationship>Outer</Parent-Relationship>
|
|
<Parallel-Aware>false</Parallel-Aware>
|
|
<Relation-Name>orders_mx_1220068</Relation-Name>
|
|
<Alias>orders_mx</Alias>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
</Query>
|
|
</explain>
|
|
</Remote-Plan>
|
|
</Task>
|
|
</Tasks>
|
|
</Job>
|
|
</Distributed-Query>
|
|
</Plan>
|
|
</Plans>
|
|
</Plan>
|
|
</Query>
|
|
</explain>
|
|
SELECT true AS valid FROM explain_xml($$
|
|
SELECT count(*)
|
|
FROM lineitem_mx, orders_mx, customer_mx, supplier_mx
|
|
WHERE l_orderkey = o_orderkey
|
|
AND o_custkey = c_custkey
|
|
AND l_suppkey = s_suppkey$$);
|
|
t
|
|
EXPLAIN (COSTS FALSE, FORMAT YAML)
|
|
SELECT count(*)
|
|
FROM lineitem_mx, orders_mx, customer_mx, supplier_mx
|
|
WHERE l_orderkey = o_orderkey
|
|
AND o_custkey = c_custkey
|
|
AND l_suppkey = s_suppkey;
|
|
- Plan:
|
|
Node Type: "Aggregate"
|
|
Strategy: "Plain"
|
|
Partial Mode: "Simple"
|
|
Parallel Aware: false
|
|
Plans:
|
|
- Node Type: "Custom Scan"
|
|
Parent Relationship: "Outer"
|
|
Custom Plan Provider: "Citus Task-Tracker"
|
|
Parallel Aware: false
|
|
Distributed Query:
|
|
Job:
|
|
Task Count: 16
|
|
Tasks Shown: "One of 16"
|
|
Tasks:
|
|
- Node: "host=localhost port=57637 dbname=regression"
|
|
Remote Plan:
|
|
- Plan:
|
|
Node Type: "Aggregate"
|
|
Strategy: "Plain"
|
|
Partial Mode: "Simple"
|
|
Parallel Aware: false
|
|
Plans:
|
|
- Node Type: "Hash Join"
|
|
Parent Relationship: "Outer"
|
|
Parallel Aware: false
|
|
Join Type: "Inner"
|
|
Hash Cond: "(lineitem_mx.l_orderkey = orders_mx.o_orderkey)"
|
|
Plans:
|
|
- Node Type: "Hash Join"
|
|
Parent Relationship: "Outer"
|
|
Parallel Aware: false
|
|
Join Type: "Inner"
|
|
Hash Cond: "(supplier_mx.s_suppkey = lineitem_mx.l_suppkey)"
|
|
Plans:
|
|
- Node Type: "Seq Scan"
|
|
Parent Relationship: "Outer"
|
|
Parallel Aware: false
|
|
Relation Name: "supplier_mx_1220087"
|
|
Alias: "supplier_mx"
|
|
- Node Type: "Hash"
|
|
Parent Relationship: "Inner"
|
|
Parallel Aware: false
|
|
Plans:
|
|
- Node Type: "Seq Scan"
|
|
Parent Relationship: "Outer"
|
|
Parallel Aware: false
|
|
Relation Name: "lineitem_mx_1220052"
|
|
Alias: "lineitem_mx"
|
|
- Node Type: "Hash"
|
|
Parent Relationship: "Inner"
|
|
Parallel Aware: false
|
|
Plans:
|
|
- Node Type: "Hash Join"
|
|
Parent Relationship: "Outer"
|
|
Parallel Aware: false
|
|
Join Type: "Inner"
|
|
Hash Cond: "(customer_mx.c_custkey = orders_mx.o_custkey)"
|
|
Plans:
|
|
- Node Type: "Seq Scan"
|
|
Parent Relationship: "Outer"
|
|
Parallel Aware: false
|
|
Relation Name: "customer_mx_1220084"
|
|
Alias: "customer_mx"
|
|
- Node Type: "Hash"
|
|
Parent Relationship: "Inner"
|
|
Parallel Aware: false
|
|
Plans:
|
|
- Node Type: "Seq Scan"
|
|
Parent Relationship: "Outer"
|
|
Parallel Aware: false
|
|
Relation Name: "orders_mx_1220068"
|
|
Alias: "orders_mx"
|
|
|