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35 lines
1.3 KiB
SQL
35 lines
1.3 KiB
SQL
DROP TABLE IF EXISTS sharded_table;
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CREATE TABLE sharded_table (dummy UInt8) ENGINE = Distributed('test_cluster_two_shards', 'system', 'one');
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SET prefer_localhost_replica=0;
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SELECT * FROM sharded_table FORMAT Null SETTINGS log_comment='02985_shard_query_start_time_query_1';
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SYSTEM FLUSH LOGS;
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-- Check that there are 2 queries to shards and for each one query_start_time_microseconds is more recent
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-- than initial_query_start_time_microseconds, and initial_query_start_time_microseconds matches the original query
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-- query_start_time_microseconds
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WITH
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(
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SELECT
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(query_id, query_start_time, query_start_time_microseconds)
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FROM
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system.query_log
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WHERE
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event_date >= yesterday()
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AND current_database = currentDatabase()
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AND log_comment = '02985_shard_query_start_time_query_1'
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AND type = 'QueryFinish'
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) AS id_and_start_tuple
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SELECT
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type,
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countIf(query_start_time >= initial_query_start_time), -- Using >= because it's comparing seconds
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countIf(query_start_time_microseconds > initial_query_start_time_microseconds),
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countIf(initial_query_start_time = id_and_start_tuple.2),
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countIf(initial_query_start_time_microseconds = id_and_start_tuple.3)
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FROM
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system.query_log
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WHERE
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NOT is_initial_query AND initial_query_id = id_and_start_tuple.1
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GROUP BY type;
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