mirror of https://github.com/citusdata/citus.git
1875 lines
70 KiB
SQL
1875 lines
70 KiB
SQL
--
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-- multi subquery complex queries aims to expand existing subquery pushdown
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-- regression tests to cover more caeses
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-- the tables that are used depends to multi_insert_select_behavioral_analytics_create_table.sql
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--
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-- We don't need shard id sequence here, so commented out to prevent conflicts with concurrent tests
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-- ALTER SEQUENCE pg_catalog.pg_dist_shardid_seq RESTART 1400000;
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ALTER SEQUENCE pg_catalog.pg_dist_jobid_seq RESTART 1400000;
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SET citus.subquery_pushdown TO TRUE;
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SET citus.enable_router_execution TO FALSE;
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--
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-- UNIONs and JOINs mixed
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--
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SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
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FROM
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( SELECT *, random()
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FROM
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( SELECT "t"."user_id",
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"t"."time",
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unnest("t"."collected_events") AS "event_types"
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FROM
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( SELECT "t1"."user_id",
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min("t1"."time") AS "time",
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array_agg(("t1"."event")
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ORDER BY TIME ASC, event DESC) AS collected_events
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FROM (
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(SELECT *
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FROM
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(SELECT "events"."user_id",
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"events"."time",
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0 AS event
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FROM events_table as "events"
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WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."user_id", "events"."time", 1 AS event
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FROM events_table as "events"
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WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."user_id", "events"."time", 2 AS event
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FROM events_table as "events"
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WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."user_id", "events"."time", 3 AS event
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FROM events_table as "events"
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WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
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GROUP BY "t1"."user_id") AS t) "q"
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INNER JOIN
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(SELECT "users"."user_id"
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FROM users_table as "users"
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WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
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GROUP BY types
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ORDER BY types;
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-- same query with target entries shuffled inside UNIONs
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SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
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FROM
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( SELECT *, random()
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FROM
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( SELECT "t"."user_id",
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"t"."time",
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unnest("t"."collected_events") AS "event_types"
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FROM
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( SELECT "t1"."user_id",
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min("t1"."time") AS "time",
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array_agg(("t1"."event")
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ORDER BY TIME ASC, event DESC) AS collected_events
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FROM (
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(SELECT *
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FROM
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(SELECT
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"events"."time",
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0 AS event,
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"events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 1 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 2 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 3 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
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GROUP BY "t1"."user_id") AS t) "q"
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INNER JOIN
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(SELECT "users"."user_id"
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FROM users_table as "users"
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WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
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GROUP BY types
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ORDER BY types;
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-- not supported since events_subquery_2 doesn't have partition key on the target list
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-- within the shuffled target list
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SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
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FROM
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( SELECT *, random()
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FROM
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( SELECT "t"."user_id",
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"t"."time",
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unnest("t"."collected_events") AS "event_types"
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FROM
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( SELECT "t1"."user_id",
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min("t1"."time") AS "time",
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array_agg(("t1"."event")
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ORDER BY TIME ASC, event DESC) AS collected_events
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FROM (
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(SELECT *
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FROM
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(SELECT
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"events"."time",
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0 AS event,
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"events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 1 AS event, "events"."user_id" * 2
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FROM events_table as "events"
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WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 2 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 3 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
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GROUP BY "t1"."user_id") AS t) "q"
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INNER JOIN
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(SELECT "users"."user_id"
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FROM users_table as "users"
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WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
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GROUP BY types
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ORDER BY types;
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-- not supported since events_subquery_2 doesn't have partition key on the target list
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SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
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FROM
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( SELECT *, random()
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FROM
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( SELECT "t"."user_id",
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"t"."time",
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unnest("t"."collected_events") AS "event_types"
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FROM
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( SELECT "t1"."user_id",
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min("t1"."time") AS "time",
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array_agg(("t1"."event")
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ORDER BY TIME ASC, event DESC) AS collected_events
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FROM (
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(SELECT *
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FROM
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(SELECT
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"events"."time",
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0 AS event,
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"events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 1 AS event, "events"."value_2" as user_id
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FROM events_table as "events"
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WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 2 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."time", 3 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
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GROUP BY "t1"."user_id") AS t) "q"
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INNER JOIN
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(SELECT "users"."user_id"
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FROM users_table as "users"
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WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
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GROUP BY types
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ORDER BY types;
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-- not supported since events_subquery_2 doesn't have partition key on the target list
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SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
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FROM
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( SELECT *, random()
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FROM
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( SELECT "t"."user_id",
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"t"."time",
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unnest("t"."collected_events") AS "event_types"
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FROM
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( SELECT "t1"."user_id",
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min("t1"."time") AS "time",
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array_agg(("t1"."event")
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ORDER BY TIME ASC, event DESC) AS collected_events
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FROM (
|
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(SELECT *
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FROM
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|
(SELECT "events"."user_id",
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"events"."time",
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0 AS event
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FROM events_table as "events"
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WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."user_id", "events"."time", 1 AS event
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FROM events_table as "events"
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WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."user_id", "events"."time", 2 AS event
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FROM events_table as "events"
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WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
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UNION
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(SELECT *
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FROM
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(SELECT "events"."user_id", "events"."time", 3 AS event
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FROM events_table as "events"
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WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
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GROUP BY "t1"."user_id") AS t) "q"
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INNER JOIN
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(SELECT "users"."user_id"
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FROM users_table as "users"
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WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
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GROUP BY types
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ORDER BY types;
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-- we can support arbitrary subqueries within UNIONs
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SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
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FROM
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( SELECT *, random()
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FROM
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( SELECT "t"."user_id",
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"t"."time",
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unnest("t"."collected_events") AS "event_types"
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FROM
|
|
( SELECT "t1"."user_id",
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min("t1"."time") AS "time",
|
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array_agg(("t1"."event")
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ORDER BY TIME ASC, event DESC) AS collected_events
|
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FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT
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|
"events"."time",
|
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0 AS event,
|
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"events"."user_id"
|
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FROM events_table as "events"
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WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
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UNION
|
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(SELECT *
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FROM
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(
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SELECT * FROM
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(
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SELECT
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max("events"."time"),
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0 AS event,
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"events"."user_id"
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FROM
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events_table as "events", users_table as "users"
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WHERE
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events.user_id = users.user_id AND
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event_type IN (10, 11, 12, 13, 14, 15)
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GROUP BY "events"."user_id"
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) as events_subquery_5
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) events_subquery_2)
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UNION
|
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(SELECT *
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FROM
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(SELECT "events"."time", 2 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
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UNION
|
|
(SELECT *
|
|
FROM
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|
(SELECT "events"."time", 3 AS event, "events"."user_id"
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FROM events_table as "events"
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WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
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GROUP BY "t1"."user_id") AS t) "q"
|
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INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
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WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
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GROUP BY types
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ORDER BY types;
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-- not supported since events_subquery_5 is not joined on partition key
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SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
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FROM
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( SELECT *, random()
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FROM
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( SELECT "t"."user_id",
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"t"."time",
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unnest("t"."collected_events") AS "event_types"
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|
FROM
|
|
( SELECT "t1"."user_id",
|
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min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT
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|
"events"."time",
|
|
0 AS event,
|
|
"events"."user_id"
|
|
FROM events_table as "events"
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WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
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UNION
|
|
(SELECT *
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FROM
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|
(
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SELECT * FROM
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|
(
|
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SELECT
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max("events"."time"),
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0 AS event,
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"events"."user_id"
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|
FROM
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events_table as "events", users_table as "users"
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WHERE
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events.user_id = users.value_2 AND
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event_type IN (10, 11, 12, 13, 14, 15)
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GROUP BY "events"."user_id"
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) as events_subquery_5
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) events_subquery_2)
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UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 2 AS event, "events"."user_id"
|
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FROM events_table as "events"
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WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 3 AS event, "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- not supported since the join is not equi join
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id != q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- not supported since subquery 3 includes a JOIN with non-equi join
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT
|
|
"events"."time",
|
|
0 AS event,
|
|
"events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 1 AS event, "events"."value_2" as user_id
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 2 AS event, "events"."user_id"
|
|
FROM events_table as "events", users_table as "users"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) AND users.user_id != events.user_id) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 3 AS event, "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- similar query with more union statements (to enable UNION tree become larger)
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)
|
|
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 4 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (31, 32, 33, 34, 35, 36)) events_subquery_5)
|
|
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 5 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (37, 38, 39, 40, 41, 42)) events_subquery_6)
|
|
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 6 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (50, 51, 52, 53, 54, 55)) events_subquery_6)
|
|
) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
|
|
--
|
|
-- UNION ALL Queries
|
|
--
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- same query target list entries shuffled
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT
|
|
"events"."time",
|
|
0 AS event,
|
|
"events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 1 AS event, "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 2 AS event, "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 3 AS event, "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- not supported since subquery 3 does not have partition key
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."value_2", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- not supported since events_subquery_4 does not have partition key on the
|
|
-- target list
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT
|
|
"events"."time",
|
|
0 AS event,
|
|
"events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 1 AS event, "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 2 AS event, "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", 3 AS event, 2 * "events"."user_id"
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- union all with inner and left joins
|
|
SELECT user_id, count(*) as cnt
|
|
FROM
|
|
(SELECT first_query.user_id,
|
|
Random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "first_query"
|
|
INNER JOIN
|
|
(SELECT "t"."user_id"
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t
|
|
LEFT OUTER JOIN
|
|
(
|
|
SELECT DISTINCT "events"."user_id" as user_id
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (35, 36, 37, 38)
|
|
GROUP BY user_id
|
|
) as t2
|
|
on (t2.user_id = t.user_id) WHERE t2.user_id is NULL) as second_query
|
|
ON ("first_query".user_id = "second_query".user_id)) as final_query
|
|
GROUP BY user_id ORDER BY cnt DESC, user_id DESC LIMIT 10;
|
|
|
|
-- not supported since the join between t and t2 is not equi join
|
|
-- union all with inner and left joins
|
|
SELECT user_id, count(*) as cnt
|
|
FROM
|
|
(SELECT first_query.user_id,
|
|
Random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "first_query"
|
|
INNER JOIN
|
|
(SELECT "t"."user_id"
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t
|
|
LEFT OUTER JOIN
|
|
(
|
|
SELECT DISTINCT "events"."user_id" as user_id
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (35, 36, 37, 38)
|
|
GROUP BY user_id
|
|
) as t2
|
|
on (t2.user_id > t.user_id) WHERE t2.user_id is NULL) as second_query
|
|
ON ("first_query".user_id = "second_query".user_id)) as final_query
|
|
GROUP BY user_id ORDER BY cnt DESC, user_id DESC LIMIT 10;
|
|
|
|
--
|
|
-- Union, inner join and left join
|
|
--
|
|
SELECT user_id, count(*) as cnt
|
|
FROM
|
|
(SELECT first_query.user_id,
|
|
Random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "first_query"
|
|
INNER JOIN
|
|
(SELECT "t"."user_id"
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t
|
|
LEFT OUTER JOIN
|
|
(
|
|
SELECT DISTINCT "events"."user_id" as user_id
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (35, 36, 37, 38)
|
|
GROUP BY user_id
|
|
) as t2
|
|
on (t2.user_id = t.user_id) WHERE t2.user_id is NULL) as second_query
|
|
ON ("first_query".user_id = "second_query".user_id)) as final_query
|
|
GROUP BY user_id ORDER BY cnt DESC, user_id DESC LIMIT 10;
|
|
|
|
--
|
|
-- Unions, left / inner joins
|
|
--
|
|
SELECT user_id, count(*) as cnt
|
|
FROM
|
|
(SELECT first_query.user_id,
|
|
Random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "first_query"
|
|
INNER JOIN
|
|
(SELECT "t"."user_id"
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t
|
|
left OUTER JOIN
|
|
(SELECT DISTINCT("events"."user_id")
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)
|
|
GROUP BY user_id
|
|
) as t2 on t2.user_id = t.user_id where t2.user_id is NULL) as second_query
|
|
ON ("first_query".user_id = "second_query".user_id)) as final_query
|
|
GROUP BY user_id ORDER BY cnt DESC, user_id DESC LIMIT 10;
|
|
|
|
|
|
-- Simple LATERAL JOINs with GROUP BYs in each side
|
|
SELECT *
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT user_id,
|
|
Max(time) AS lastseen
|
|
FROM
|
|
(SELECT user_id,
|
|
time
|
|
FROM
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 40) "events_1"
|
|
ORDER BY time DESC
|
|
LIMIT 1000) "recent_events_1"
|
|
GROUP BY user_id
|
|
ORDER BY max(time) DESC) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 50 and users.value_2 < 55
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 50) "some_users"
|
|
order BY user_id
|
|
limit 50;
|
|
|
|
-- same query with subuqery joins in topmost select
|
|
SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT user_id,
|
|
Max(TIME) AS lastseen
|
|
FROM
|
|
(SELECT user_id,
|
|
TIME
|
|
FROM
|
|
(SELECT user_id,
|
|
TIME
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 40) "events_1"
|
|
ORDER BY TIME DESC
|
|
LIMIT 1000) "recent_events_1"
|
|
GROUP BY user_id
|
|
ORDER BY max(TIME) DESC) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 50 and users.value_2 < 55
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY user_id
|
|
limit 50;
|
|
|
|
-- not supported since JOIN is not on the partition key
|
|
SELECT *
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT user_id,
|
|
Max(time) AS lastseen
|
|
FROM
|
|
(SELECT user_id,
|
|
time
|
|
FROM
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 40) "events_1"
|
|
ORDER BY time DESC
|
|
LIMIT 1000) "recent_events_1"
|
|
GROUP BY user_id
|
|
ORDER BY max(time) DESC) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."value_1" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 50 and users.value_2 < 55
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 50) "some_users"
|
|
order BY user_id
|
|
limit 50;
|
|
|
|
-- not supported since JOIN is not on the partition key
|
|
-- see (2 * user_id as user_id) target list element
|
|
SELECT *
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT 2 * user_id as user_id,
|
|
(time) AS lastseen
|
|
FROM
|
|
(SELECT user_id,
|
|
time
|
|
FROM
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 40) "events_1"
|
|
ORDER BY time DESC
|
|
LIMIT 1000) "recent_events_1"
|
|
) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 50 and users.value_2 < 55
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 50) "some_users"
|
|
order BY user_id
|
|
limit 50;
|
|
|
|
-- LATERAL JOINs used with INNER JOINs
|
|
SELECT user_id, lastseen
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
time AS lastseen
|
|
FROM
|
|
(SELECT user_where_1_1.user_id
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_1 > 20) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_2 > 60) user_where_1_join_1
|
|
ON ("user_where_1_1".user_id = "user_where_1_join_1".user_id)) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 12 and user_id < 16 and user_id = filter_users_1.user_id
|
|
ORDER BY time DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY time DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND "users"."value_2" > 70
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 10) "some_users"
|
|
order BY user_id DESC
|
|
limit 10;
|
|
|
|
--
|
|
-- A similar query with topmost select is dropped
|
|
-- and replaced by aggregation. Notice the heavy use of limit
|
|
--
|
|
SELECT "some_users_data".user_id, MAX(lastseen), count(*)
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
TIME AS lastseen
|
|
FROM
|
|
(SELECT user_where_1_1.user_id
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_1 > 20) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_2 > 60) user_where_1_join_1
|
|
ON ("user_where_1_1".user_id = "user_where_1_join_1".user_id)) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
TIME
|
|
FROM events_table as "events"
|
|
WHERE user_id > 12 and user_id < 16 and user_id = filter_users_1.user_id
|
|
ORDER BY TIME DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY TIME DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND "users"."value_2" > 70
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
GROUP BY 1
|
|
ORDER BY 2, 1 DESC
|
|
limit 10;
|
|
|
|
-- not supported since the inner JOIN is not equi join
|
|
SELECT user_id, lastseen
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
time AS lastseen
|
|
FROM
|
|
(SELECT user_where_1_1.user_id
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_1 > 20) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_2 > 60) user_where_1_join_1
|
|
ON ("user_where_1_1".user_id != "user_where_1_join_1".user_id)) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 12 and user_id < 16 and user_id = filter_users_1.user_id
|
|
ORDER BY time DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY time DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND "users"."value_2" > 70
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 10) "some_users"
|
|
order BY user_id DESC
|
|
limit 10;
|
|
|
|
-- not supported since the inner JOIN is not on the partition key
|
|
SELECT user_id, lastseen
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
time AS lastseen
|
|
FROM
|
|
(SELECT user_where_1_1.user_id
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_1 > 20) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id", "users"."value_1"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_2 > 60) user_where_1_join_1
|
|
ON ("user_where_1_1".user_id = "user_where_1_join_1".value_1)) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 12 and user_id < 16 and user_id = filter_users_1.user_id
|
|
ORDER BY time DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY time DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND "users"."value_2" > 70
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 10) "some_users"
|
|
order BY user_id DESC
|
|
limit 10;
|
|
|
|
|
|
-- not supported since upper LATERAL JOIN is not equi join
|
|
SELECT user_id, lastseen
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
time AS lastseen
|
|
FROM
|
|
(SELECT user_where_1_1.user_id
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_1 > 20) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id", "users"."value_1"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_2 > 60) user_where_1_join_1
|
|
ON ("user_where_1_1".user_id = "user_where_1_join_1".user_id)) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 12 and user_id < 16 and user_id != filter_users_1.user_id
|
|
ORDER BY time DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY time DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND "users"."value_2" > 70
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 10) "some_users"
|
|
order BY user_id DESC
|
|
limit 10;
|
|
|
|
-- not supported since lower LATERAL JOIN is not on the partition key
|
|
SELECT user_id, lastseen
|
|
FROM
|
|
(SELECT "some_users_data".user_id, lastseen
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
time AS lastseen
|
|
FROM
|
|
(SELECT user_where_1_1.user_id
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_1 > 20) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id", "users"."value_1"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 12 and user_id < 16 and value_2 > 60) user_where_1_join_1
|
|
ON ("user_where_1_1".user_id = "user_where_1_join_1".user_id)) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
time
|
|
FROM events_table as "events"
|
|
WHERE user_id > 12 and user_id < 16 and user_id = filter_users_1.user_id
|
|
ORDER BY time DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY time DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."value_1" = "some_recent_users"."user_id"
|
|
AND "users"."value_2" > 70
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY lastseen DESC
|
|
LIMIT 10) "some_users"
|
|
order BY user_id DESC
|
|
limit 10;
|
|
|
|
-- NESTED INNER JOINs
|
|
SELECT
|
|
count(*) AS value, "generated_group_field"
|
|
FROM
|
|
(SELECT DISTINCT "pushedDownQuery"."real_user_id", "generated_group_field"
|
|
FROM
|
|
(SELECT "eventQuery"."real_user_id", "eventQuery"."time", random(), ("eventQuery"."value_2") AS "generated_group_field"
|
|
FROM
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", "events"."user_id", "events"."value_2"
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 40 and event_type IN (40, 41, 42, 43, 44, 45) ) "temp_data_queries"
|
|
inner JOIN
|
|
(SELECT
|
|
user_where_1_1.real_user_id
|
|
FROM
|
|
(SELECT "users"."user_id" as real_user_id
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_2 > 50 ) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_3 > 50 ) user_where_1_join_1
|
|
ON ("user_where_1_1".real_user_id = "user_where_1_join_1".user_id)) "user_filters_1"
|
|
ON ("temp_data_queries".user_id = "user_filters_1".real_user_id)) "eventQuery") "pushedDownQuery") "pushedDownQuery"
|
|
GROUP BY "generated_group_field" ORDER BY generated_group_field DESC, value DESC;
|
|
|
|
-- not supported since the first inner join is not on the partition key
|
|
SELECT
|
|
count(*) AS value, "generated_group_field"
|
|
FROM
|
|
(SELECT DISTINCT "pushedDownQuery"."real_user_id", "generated_group_field"
|
|
FROM
|
|
(SELECT "eventQuery"."real_user_id", "eventQuery"."time", random(), ("eventQuery"."value_2") AS "generated_group_field"
|
|
FROM
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", "events"."user_id", "events"."value_2"
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 40 and event_type IN (40, 41, 42, 43, 44, 45) ) "temp_data_queries"
|
|
inner JOIN
|
|
(SELECT
|
|
user_where_1_1.real_user_id
|
|
FROM
|
|
(SELECT "users"."user_id" as real_user_id
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_2 > 50 ) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_3 > 50 ) user_where_1_join_1
|
|
ON ("user_where_1_1".real_user_id = "user_where_1_join_1".user_id)) "user_filters_1"
|
|
ON ("temp_data_queries".value_2 = "user_filters_1".real_user_id)) "eventQuery") "pushedDownQuery") "pushedDownQuery"
|
|
GROUP BY "generated_group_field" ORDER BY generated_group_field DESC, value DESC;
|
|
|
|
-- not supported since the first inner join is not an equi join
|
|
SELECT
|
|
count(*) AS value, "generated_group_field"
|
|
FROM
|
|
(SELECT DISTINCT "pushedDownQuery"."real_user_id", "generated_group_field"
|
|
FROM
|
|
(SELECT "eventQuery"."real_user_id", "eventQuery"."time", random(), ("eventQuery"."value_2") AS "generated_group_field"
|
|
FROM
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", "events"."user_id", "events"."value_2"
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 40 and event_type IN (40, 41, 42, 43, 44, 45) ) "temp_data_queries"
|
|
inner JOIN
|
|
(SELECT
|
|
user_where_1_1.real_user_id
|
|
FROM
|
|
(SELECT "users"."user_id" as real_user_id
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_2 > 50 ) user_where_1_1
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_3 > 50 ) user_where_1_join_1
|
|
ON ("user_where_1_1".real_user_id >= "user_where_1_join_1".user_id)) "user_filters_1"
|
|
ON ("temp_data_queries".user_id = "user_filters_1".real_user_id)) "eventQuery") "pushedDownQuery") "pushedDownQuery"
|
|
GROUP BY "generated_group_field" ORDER BY generated_group_field DESC, value DESC;
|
|
|
|
-- single level inner joins
|
|
SELECT
|
|
"value_3", count(*) AS cnt
|
|
FROM
|
|
(SELECT "value_3", "user_id", random()
|
|
FROM
|
|
(SELECT users_in_segment_1.user_id, value_3
|
|
FROM
|
|
(SELECT user_id, value_3 * 2 as value_3
|
|
FROM
|
|
(SELECT user_id, value_3
|
|
FROM
|
|
(SELECT "users"."user_id", value_3
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_2 > 30
|
|
) simple_user_where_1
|
|
) all_buckets_1
|
|
) users_in_segment_1
|
|
JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_2 > 60
|
|
) some_users_data
|
|
ON ("users_in_segment_1".user_id = "some_users_data".user_id)
|
|
) segmentalias_1) "tempQuery"
|
|
GROUP BY "value_3"
|
|
ORDER BY cnt, value_3 DESC LIMIT 10;
|
|
|
|
|
|
-- not supported since there is no partition column equality at all
|
|
SELECT
|
|
"value_3", count(*) AS cnt
|
|
FROM
|
|
(SELECT "value_3", "user_id", random()
|
|
FROM
|
|
(SELECT users_in_segment_1.user_id, value_3
|
|
FROM
|
|
(SELECT user_id, value_3 * 2 as value_3
|
|
FROM
|
|
(SELECT user_id, value_3
|
|
FROM
|
|
(SELECT "users"."user_id", value_3
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_2 > 30) simple_user_where_1) all_buckets_1) users_in_segment_1
|
|
JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 10 and user_id < 40 and value_2 > 60) some_users_data
|
|
|
|
ON (true)) segmentalias_1) "tempQuery"
|
|
GROUP BY "value_3" ORDER BY cnt, value_3 DESC LIMIT 10;
|
|
|
|
-- nested LATERAL JOINs
|
|
SELECT *
|
|
FROM
|
|
(SELECT "some_users_data".user_id,
|
|
"some_recent_users".value_3
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
value_3
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 20 and user_id < 70 and users.value_2 = 200) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
value_3
|
|
FROM events_table as "events"
|
|
WHERE user_id > 20 and user_id < 70
|
|
AND ("events".user_id = "filter_users_1".user_id)
|
|
ORDER BY value_3 DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY value_3 DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 200
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY value_3 DESC
|
|
LIMIT 10) "some_users"
|
|
order BY
|
|
value_3 DESC
|
|
limit 10;
|
|
|
|
-- nested lateral join at top most level
|
|
SELECT "some_users_data".user_id, "some_recent_users".value_3
|
|
FROM
|
|
(SELECT filter_users_1.user_id, value_3
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 20 and user_id < 70 and users.value_2 = 200
|
|
) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id, value_3
|
|
FROM events_table as "events"
|
|
WHERE user_id > 20 and user_id < 70
|
|
AND ("events".user_id = "filter_users_1".user_id)
|
|
ORDER BY value_3 DESC
|
|
LIMIT 1
|
|
) "last_events_1" ON TRUE
|
|
ORDER BY value_3 DESC
|
|
LIMIT 10
|
|
) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 200
|
|
LIMIT 1
|
|
) "some_users_data" ON TRUE
|
|
ORDER BY value_3 DESC, user_id ASC
|
|
LIMIT 10;
|
|
|
|
-- longer nested lateral joins
|
|
SELECT *
|
|
FROM
|
|
(SELECT "some_users_data".user_id,
|
|
"some_recent_users".value_3
|
|
FROM
|
|
(SELECT filter_users_1.user_id,
|
|
value_3
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 20 and user_id < 70 and users.value_2 = 200) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id,
|
|
value_3
|
|
FROM events_table as "events"
|
|
WHERE user_id > 20 and user_id < 70
|
|
AND ("events".user_id = "filter_users_1".user_id)
|
|
ORDER BY value_3 DESC
|
|
LIMIT 1) "last_events_1" ON TRUE
|
|
ORDER BY value_3 DESC
|
|
LIMIT 10) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 200
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY value_3 DESC
|
|
LIMIT 10) "some_users"
|
|
order BY
|
|
value_3 DESC
|
|
limit 10;
|
|
|
|
-- longer nested lateral join wth top level join
|
|
SELECT "some_users_data".user_id, "some_recent_users".value_3
|
|
FROM
|
|
(SELECT filter_users_1.user_id, value_3
|
|
FROM
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 20 and user_id < 70 and users.value_2 = 200
|
|
) filter_users_1
|
|
JOIN LATERAL
|
|
(SELECT user_id, value_3
|
|
FROM events_table as "events"
|
|
WHERE user_id > 20 and user_id < 70
|
|
AND ("events".user_id = "filter_users_1".user_id)
|
|
ORDER BY value_3 DESC
|
|
LIMIT 1
|
|
) "last_events_1" ON TRUE
|
|
ORDER BY value_3 DESC
|
|
LIMIT 10
|
|
) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND users.value_2 > 200
|
|
LIMIT 1
|
|
) "some_users_data" ON TRUE
|
|
ORDER BY value_3 DESC
|
|
LIMIT 10;
|
|
|
|
-- LEFT JOINs used with INNER JOINs
|
|
SELECT
|
|
count(*) AS cnt, "generated_group_field"
|
|
FROM
|
|
(SELECT "eventQuery"."user_id", random(), generated_group_field
|
|
FROM
|
|
(SELECT "multi_group_wrapper_1".*, generated_group_field, random()
|
|
FROM
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."time", "events"."user_id" as event_user_id
|
|
FROM events_table as "events"
|
|
WHERE user_id > 80) "temp_data_queries"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE user_id > 80 and value_2 = 5) "user_filters_1"
|
|
on ("temp_data_queries".event_user_id = "user_filters_1".user_id)) AS "multi_group_wrapper_1"
|
|
LEFT JOIN
|
|
(SELECT "users"."user_id" AS "user_id", value_2 AS "generated_group_field"
|
|
FROM users_table as "users") "left_group_by_1"
|
|
on ("left_group_by_1".user_id = "multi_group_wrapper_1".event_user_id)) "eventQuery") "pushedDownQuery"
|
|
group BY
|
|
"generated_group_field"
|
|
ORDER BY cnt DESC, generated_group_field ASC
|
|
LIMIT 10;
|
|
|
|
-- single table subquery, no JOINS involved
|
|
SELECT
|
|
count(*) AS cnt, user_id
|
|
FROM
|
|
(SELECT "eventQuery"."user_id", random()
|
|
FROM
|
|
(SELECT "events"."user_id"
|
|
FROM events_table "events"
|
|
WHERE event_type IN (10, 20, 30, 40, 50, 60, 70, 80, 90)) "eventQuery") "pushedDownQuery"
|
|
GROUP BY
|
|
"user_id"
|
|
ORDER BY cnt DESC, user_id DESC
|
|
LIMIT 10;
|
|
|
|
-- lateral joins in the nested manner
|
|
SELECT *
|
|
FROM
|
|
(SELECT "some_users_data".user_id, value_2
|
|
FROM
|
|
(SELECT user_id,
|
|
Max(value_2) AS value_2
|
|
FROM
|
|
(SELECT user_id,
|
|
value_2
|
|
FROM
|
|
(SELECT user_id,
|
|
value_2
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 20) "events_1"
|
|
ORDER BY value_2 DESC
|
|
LIMIT 10000) "recent_events_1"
|
|
GROUP BY user_id
|
|
ORDER BY max(value_2) DESC) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."user_id" = "some_recent_users"."user_id"
|
|
AND value_2 > 75
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY value_2 DESC
|
|
LIMIT 10) "some_users"
|
|
order BY value_2 DESC, user_id DESC
|
|
limit 10;
|
|
|
|
-- not supported since join is not on the partition key
|
|
SELECT *
|
|
FROM
|
|
(SELECT "some_users_data".user_id, value_2
|
|
FROM
|
|
(SELECT user_id,
|
|
Max(value_2) AS value_2
|
|
FROM
|
|
(SELECT user_id,
|
|
value_2
|
|
FROM
|
|
(SELECT user_id,
|
|
value_2
|
|
FROM events_table as "events"
|
|
WHERE user_id > 10 and user_id < 20) "events_1"
|
|
ORDER BY value_2 DESC
|
|
LIMIT 10000) "recent_events_1"
|
|
GROUP BY user_id
|
|
ORDER BY max(value_2) DESC) "some_recent_users"
|
|
JOIN LATERAL
|
|
(SELECT "users".user_id
|
|
FROM users_table as "users"
|
|
WHERE "users"."value_2" = "some_recent_users"."user_id"
|
|
AND value_2 > 75
|
|
LIMIT 1) "some_users_data" ON TRUE
|
|
ORDER BY value_2 DESC
|
|
LIMIT 10) "some_users"
|
|
order BY value_2 DESC, user_id DESC
|
|
limit 10;
|
|
|
|
-- lets test some unsupported set operations
|
|
|
|
-- not supported since we use INTERSECT
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
INTERSECT
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- not supported due to offset
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event")
|
|
ORDER BY TIME ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id",
|
|
"events"."time",
|
|
0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13) ) events_subquery_4) OFFSET 3 ) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- not supported due to window functions
|
|
SELECT user_id,
|
|
some_vals
|
|
FROM (
|
|
SELECT * ,
|
|
Row_number() over (PARTITION BY "user_id" ORDER BY "user_id") AS "some_vals",
|
|
Random()
|
|
FROM users_table
|
|
) user_id
|
|
ORDER BY 1,
|
|
2 limit 10;
|
|
|
|
-- not supported due to non relation rte
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event") ORDER BY time ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION
|
|
(SELECT *
|
|
FROM
|
|
(SELECT 1, now(), 3 AS event) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT "users"."user_id"
|
|
FROM users_table as "users"
|
|
WHERE value_1 > 50 and value_1 < 70) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
-- similar to the above, but constant rte is on the right side of the query
|
|
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
|
|
FROM
|
|
( SELECT *, random()
|
|
FROM
|
|
( SELECT "t"."user_id",
|
|
"t"."time",
|
|
unnest("t"."collected_events") AS "event_types"
|
|
FROM
|
|
( SELECT "t1"."user_id",
|
|
min("t1"."time") AS "time",
|
|
array_agg(("t1"."event") ORDER BY time ASC, event DESC) AS collected_events
|
|
FROM (
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 0 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (10, 11, 12, 13, 14, 15) ) events_subquery_1)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 1 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (15, 16, 17, 18, 19) ) events_subquery_2)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 2 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (20, 21, 22, 23, 24, 25) ) events_subquery_3)
|
|
UNION ALL
|
|
(SELECT *
|
|
FROM
|
|
(SELECT "events"."user_id", "events"."time", 3 AS event
|
|
FROM events_table as "events"
|
|
WHERE event_type IN (26, 27, 28, 29, 30, 13)) events_subquery_4)) t1
|
|
GROUP BY "t1"."user_id") AS t) "q"
|
|
INNER JOIN
|
|
(SELECT random()::int as user_id) AS t ON (t.user_id = q.user_id)) as final_query
|
|
GROUP BY types
|
|
ORDER BY types;
|
|
|
|
SET citus.subquery_pushdown TO FALSE;
|
|
SET citus.enable_router_execution TO TRUE;
|