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45 lines
1.7 KiB
SQL
45 lines
1.7 KiB
SQL
SELECT '====array====';
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DROP TABLE IF EXISTS t_arr;
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CREATE TABLE t_arr (a Array(UInt32)) ENGINE = MergeTree ORDER BY tuple() SETTINGS min_bytes_for_wide_part = 0;
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INSERT INTO t_arr VALUES ([1]) ([]) ([1, 2, 3]) ([1, 2]);
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SYSTEM DROP MARK CACHE;
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SELECT a.size0 FROM t_arr;
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SYSTEM FLUSH LOGS;
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SELECT ProfileEvents.Values[indexOf(ProfileEvents.Names, 'FileOpen')]
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FROM system.query_log
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WHERE (type = 'QueryFinish') AND (lower(query) LIKE lower('SELECT a.size0 FROM %t_arr%'))
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AND event_time > now() - INTERVAL 10 SECOND AND current_database = currentDatabase();
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SELECT '====tuple====';
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DROP TABLE IF EXISTS t_tup;
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CREATE TABLE t_tup (t Tuple(s String, u UInt32)) ENGINE = MergeTree ORDER BY tuple() SETTINGS min_bytes_for_wide_part = 0;
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INSERT INTO t_tup VALUES (('foo', 1)) (('bar', 2)) (('baz', 42));
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SYSTEM DROP MARK CACHE;
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SELECT t.s FROM t_tup;
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SYSTEM DROP MARK CACHE;
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SELECT t.u FROM t_tup;
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SYSTEM FLUSH LOGS;
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SELECT ProfileEvents.Values[indexOf(ProfileEvents.Names, 'FileOpen')]
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FROM system.query_log
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WHERE (type = 'QueryFinish') AND (lower(query) LIKE lower('SELECT t._ FROM %t_tup%'))
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AND event_time > now() - INTERVAL 10 SECOND AND current_database = currentDatabase();
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SELECT '====nullable====';
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DROP TABLE IF EXISTS t_nul;
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CREATE TABLE t_nul (n Nullable(UInt32)) ENGINE = MergeTree ORDER BY tuple() SETTINGS min_bytes_for_wide_part = 0;
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INSERT INTO t_nul VALUES (1) (NULL) (2) (NULL);
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SYSTEM DROP MARK CACHE;
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SELECT n.null FROM t_nul;
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SYSTEM FLUSH LOGS;
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SELECT ProfileEvents.Values[indexOf(ProfileEvents.Names, 'FileOpen')]
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FROM system.query_log
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WHERE (type = 'QueryFinish') AND (lower(query) LIKE lower('SELECT n.null FROM %t_nul%'))
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AND event_time > now() - INTERVAL 10 SECOND AND current_database = currentDatabase();
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