################################################################################ # # UPDATE using multiple statements. Subtract a value (4) from one field, then # add the same value to another field in the same row. # # Mind any tx errors, ROLLBACK if needed to "equalize" different engines. # ################################################################################ SET autocommit = 0; START TRANSACTION; eval SET @conn_id = CONNECTION_ID(), @thread_id = 0; --error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD UPDATE t1 SET `int1` = `int1` - 4, `id` = 4, `is_consistent` = 0, `connection_id` = @conn_id, `thread_id` = @thread_id WHERE `pk` = 4; --source suite/engines/rr_trx/include/check_for_error_rollback.inc --echo *** UPDATEing row with pk = 4 and `int1_key` +=4 if above statement succeeded (query log disabled)... if (!$error) { # This is conditional, so disable query log to avoid irrelevant diffs. --disable_query_log --error 0, ER_LOCK_DEADLOCK, ER_LOCK_WAIT_TIMEOUT, ER_CHECKREAD UPDATE t1 SET `int1_key` = `int1_key` + 4, `is_consistent` = 1, `connection_id` = @conn_id, `thread_id` = @thread_id WHERE `pk` = 4; --source suite/engines/rr_trx/include/check_for_error_rollback.inc --enable_query_log } COMMIT;
Name | Type | Size | Permission | Actions |
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init_innodb.test | File | 110 B | 0644 |
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rr_c_count_not_zero.test | File | 1.02 KB | 0644 |
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rr_c_stats.test | File | 131 B | 0644 |
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rr_i_40-44.test | File | 5.54 KB | 0644 |
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rr_id_3.test | File | 995 B | 0644 |
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rr_id_900.test | File | 5.74 KB | 0644 |
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rr_insert_select_2.test | File | 2.11 KB | 0644 |
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rr_iud_rollback-multi-50.test | File | 3.02 KB | 0644 |
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rr_replace_7-8.test | File | 3.87 KB | 0644 |
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rr_s_select-uncommitted.test | File | 387 B | 0644 |
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rr_sc_select-limit-nolimit_4.test | File | 2.34 KB | 0644 |
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rr_sc_select-same_2.test | File | 1.93 KB | 0644 |
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rr_sc_sum_total.test | File | 968 B | 0644 |
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rr_u_10-19.test | File | 15.41 KB | 0644 |
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rr_u_10-19_nolimit.test | File | 15.03 KB | 0644 |
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rr_u_4.test | File | 1.36 KB | 0644 |
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