mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-05 22:12:21 +00:00
146 lines
4.4 KiB
SQL
146 lines
4.4 KiB
SQL
SET log_queries=1;
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SET log_profile_events=true;
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CREATE TABLE src Engine=MergeTree ORDER BY id AS SELECT number as id, toInt32(1) as value FROM numbers(1);
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CREATE TABLE dst (id UInt64, delta Int64) Engine=MergeTree ORDER BY id;
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-- First we try with default values (https://github.com/ClickHouse/ClickHouse/issues/9587)
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SET use_index_for_in_with_subqueries = 1;
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CREATE MATERIALIZED VIEW src2dst_true TO dst AS
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SELECT
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id,
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src.value - deltas_sum as delta
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FROM src
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LEFT JOIN
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(
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SELECT id, sum(delta) as deltas_sum FROM dst
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WHERE id IN (SELECT id FROM src WHERE not sleepEachRow(0.001))
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GROUP BY id
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) _a
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USING (id);
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-- Inserting 2 numbers should require 2 calls to sleep
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INSERT into src SELECT number + 100 as id, 1 FROM numbers(2);
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-- Describe should not need to call sleep
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DESCRIBE ( SELECT '1947 #3 QUERY - TRUE',
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id,
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src.value - deltas_sum as delta
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FROM src
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LEFT JOIN
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(
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SELECT id, sum(delta) as deltas_sum FROM dst
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WHERE id IN (SELECT id FROM src WHERE not sleepEachRow(0.001))
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GROUP BY id
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) _a
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USING (id)
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) FORMAT Null;
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SYSTEM FLUSH LOGS;
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SELECT '1947 #1 CHECK - TRUE' as test,
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ProfileEvents['SleepFunctionCalls'] as sleep_calls,
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ProfileEvents['SleepFunctionMicroseconds'] as sleep_microseconds
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FROM system.query_log
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WHERE query like '%CREATE MATERIALIZED VIEW src2dst_true%'
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AND type > 1
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AND current_database = currentDatabase()
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AND event_date >= yesterday()
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FORMAT JSONEachRow;
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SELECT '1947 #2 CHECK - TRUE' as test,
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ProfileEvents['SleepFunctionCalls'] as sleep_calls,
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ProfileEvents['SleepFunctionMicroseconds'] as sleep_microseconds
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FROM system.query_log
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WHERE query like '%INSERT into src SELECT number + 100 as id, 1 FROM numbers(2)%'
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AND type > 1
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AND current_database = currentDatabase()
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AND event_date >= yesterday()
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FORMAT JSONEachRow;
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SELECT '1947 #3 CHECK - TRUE' as test,
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ProfileEvents['SleepFunctionCalls'] as sleep_calls,
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ProfileEvents['SleepFunctionMicroseconds'] as sleep_microseconds
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FROM system.query_log
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WHERE query like '%DESCRIBE ( SELECT ''1947 #3 QUERY - TRUE'',%'
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AND type > 1
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AND current_database = currentDatabase()
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AND event_date >= yesterday()
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FORMAT JSONEachRow;
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DROP TABLE src2dst_true;
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-- Retry the same but using use_index_for_in_with_subqueries = 0
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SET use_index_for_in_with_subqueries = 0;
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CREATE MATERIALIZED VIEW src2dst_false TO dst AS
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SELECT
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id,
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src.value - deltas_sum as delta
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FROM src
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LEFT JOIN
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(
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SELECT id, sum(delta) as deltas_sum FROM dst
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WHERE id IN (SELECT id FROM src WHERE not sleepEachRow(0.001))
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GROUP BY id
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) _a
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USING (id);
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-- Inserting 2 numbers should require 2 calls to sleep
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INSERT into src SELECT number + 200 as id, 1 FROM numbers(2);
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-- Describe should not need to call sleep
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DESCRIBE ( SELECT '1947 #3 QUERY - FALSE',
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id,
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src.value - deltas_sum as delta
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FROM src
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LEFT JOIN
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(
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SELECT id, sum(delta) as deltas_sum FROM dst
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WHERE id IN (SELECT id FROM src WHERE not sleepEachRow(0.001))
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GROUP BY id
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) _a
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USING (id)
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) FORMAT Null;
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SYSTEM FLUSH LOGS;
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SELECT '1947 #1 CHECK - FALSE' as test,
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ProfileEvents['SleepFunctionCalls'] as sleep_calls,
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ProfileEvents['SleepFunctionMicroseconds'] as sleep_microseconds
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FROM system.query_log
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WHERE query like '%CREATE MATERIALIZED VIEW src2dst_false%'
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AND type > 1
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AND current_database = currentDatabase()
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AND event_date >= yesterday()
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FORMAT JSONEachRow;
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SELECT '1947 #2 CHECK - FALSE' as test,
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ProfileEvents['SleepFunctionCalls'] as sleep_calls,
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ProfileEvents['SleepFunctionMicroseconds'] as sleep_microseconds
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FROM system.query_log
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WHERE query like '%INSERT into src SELECT number + 200 as id, 1 FROM numbers(2)%'
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AND type > 1
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AND current_database = currentDatabase()
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AND event_date >= yesterday()
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FORMAT JSONEachRow;
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SELECT '1947 #3 CHECK - FALSE' as test,
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ProfileEvents['SleepFunctionCalls'] as sleep_calls,
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ProfileEvents['SleepFunctionMicroseconds'] as sleep_microseconds
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FROM system.query_log
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WHERE query like '%DESCRIBE ( SELECT ''1947 #3 QUERY - FALSE'',%'
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AND type > 1
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AND current_database = currentDatabase()
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AND event_date >= yesterday()
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FORMAT JSONEachRow;
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DROP TABLE src2dst_false;
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DROP TABLE src;
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DROP TABLE dst;
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