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partition_default_functions.inc
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# Help file for avoid duplicated tests of different DEFAULT functions # # Needs $get_handler_status_counts defined # normally as: # let $get_handler_status_counts= # SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS # WHERE VARIABLE_NAME LIKE 'HANDLER_%' AND VARIABLE_VALUE > 0; # # And a table t3 where a is a DATETIME/DATE/TIME/TIMESTAMP column # and b is a char/varchar() column. if ($null_as_now) { FLUSH STATUS; SET TIMESTAMP = 1234567890; INSERT INTO t3 (a) VALUES (NULL); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) } FLUSH STATUS; SET TIMESTAMP = 1234567891; INSERT INTO t3 VALUES (); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) FLUSH STATUS; INSERT INTO t3 (a) VALUES ('2011-01-01 00:00:00'); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) FLUSH STATUS; INSERT INTO t3 (a) VALUES ('2011-01-01 00:00:01'); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) FLUSH STATUS; INSERT INTO t3 (a) VALUES ('2011-01-01 00:00:02'), ('2011-01-01 00:00:03'); eval $get_handler_status_counts; --echo # 6 locks (1 table, 2 partition lock/unlock) --echo # 2 writes FLUSH STATUS; SET TIMESTAMP = 1234567892; INSERT INTO t3 (a) VALUES ('2011-01-01 00:00:00') ON DUPLICATE KEY UPDATE b = "DUP_KEY"; eval $get_handler_status_counts; if ($default_update) { --echo # 8 locks (1 table, 3 partition lock/unlock) --echo # No pruning due to DEFAULT function on partitioning column --echo # 1 read_key + 1 delete + 2 write (1 failed + 1 ok) --echo # 1 delete + 1 write due to moved to different partition } if (!$default_update) { --echo # 4 locks (1 table, 1 partition lock/unlock) --echo # 1 read_key + 1 update (same partition) --echo # 1 (failed) write } FLUSH STATUS; INSERT INTO t3 (a) VALUES ('2011-01-01 00:00:01') ON DUPLICATE KEY UPDATE a = '2011-01-01 00:00:05', b = "DUP_KEY2"; eval $get_handler_status_counts; --echo # 8 locks (1 table, 3 partition lock/unlock) --echo # No pruning due to updating partitioning field. --echo # 1 read_key + 1 delete + 2 write (1 failed + 1 ok) --echo # 1 delete + 1 write due to moved to different partition FLUSH STATUS; SET TIMESTAMP = 1234567893; UPDATE t3 SET b = 'Updated' WHERE a = '2011-01-01 00:00:02'; eval $get_handler_status_counts; if ($default_update) { --echo # 8 locks (1 table, 3 partition lock/unlock) --echo # No pruning due to DEFAULT function on partitioning column --echo # 2 read_key + 1 read_rnd (1 read_key due to index lookup, --echo # 1 read_rnd + 1 read_key due to positioning before update) --echo # 1 delete + 1 write due to moved to different partition --echo # + 1 (failed) write } if (!$default_update) { --echo # 4 locks (1 table, 1 partition lock/unlock) --echo # 1 read_key + 1 update (same partition) --echo # 1 (failed) write } FLUSH STATUS; REPLACE INTO t3 VALUES ('2011-01-01 00:00:04', 'Replace1'); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) FLUSH STATUS; REPLACE INTO t3 VALUES ('2011-01-01 00:00:04', 'Replace2'); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) --echo # 1 read_key + 1 update + 1 failed write --echo # --echo # Test of replace of default PK (delete might be needed first) --echo # DELETE FROM t3 WHERE a = 0; FLUSH STATUS; SET TIMESTAMP = 1234567894; REPLACE INTO t3 (b) VALUES ('Replace3'); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) FLUSH STATUS; SET TIMESTAMP = 1234567894; REPLACE INTO t3 (b) VALUES ('Replace4'); eval $get_handler_status_counts; --echo # 4 locks (1 table, 1 partition lock/unlock) --echo # 1 read_key + 1 update + 1 failed write --sorted_result SELECT * FROM t3;