101 lines
2.4 KiB
Plaintext
101 lines
2.4 KiB
Plaintext
# TestNoopFunctions
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# issues 14448, 19383, 17734, 52432
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# variable changes in the test will not affect the plan cache
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set tidb_enable_non_prepared_plan_cache=0;
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY);
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INSERT INTO t1 VALUES (1),(2),(3);
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SET @@tidb_enable_noop_functions='ON';
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1;
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SELECT * FROM t1 LOCK IN SHARE MODE;
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# test the fast path for point-get queries
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SELECT * FROM t1 WHERE a=1 LOCK IN SHARE MODE;
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SELECT * FROM t1 GROUP BY a DESC;
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SELECT * FROM t1 GROUP BY a ASC;
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SET @@tidb_enable_noop_functions='WARN';
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--enable_warnings
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1;
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SELECT * FROM t1 LOCK IN SHARE MODE;
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SELECT * FROM t1 WHERE a=1 LOCK IN SHARE MODE;
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SELECT * FROM t1 GROUP BY a DESC;
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SELECT * FROM t1 GROUP BY a ASC;
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--disable_warnings
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SET @@tidb_enable_noop_functions='OFF';
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--error 1235
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 1;
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--error 1235
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SELECT * FROM t1 LOCK IN SHARE MODE;
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--error 1235
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SELECT * FROM t1 WHERE a=1 LOCK IN SHARE MODE;
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--error 1235
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SELECT * FROM t1 GROUP BY a DESC;
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--error 1235
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SELECT * FROM t1 GROUP BY a ASC;
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# After each of these statements execute, we need to reset the values
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# because otherwise tidb_enable_noop_functions can't be changed.
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SET @@tidb_enable_noop_functions='ON';
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START TRANSACTION READ ONLY;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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SET TRANSACTION READ ONLY;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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SET tx_read_only = 1;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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SET transaction_read_only = 1;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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SET @@tidb_enable_noop_functions='WARN';
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--enable_warnings
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START TRANSACTION READ ONLY;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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SET TRANSACTION READ ONLY;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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SET tx_read_only = 1;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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SET transaction_read_only = 1;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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--disable_warnings
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SET @@tidb_enable_noop_functions='OFF';
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--error 1235
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START TRANSACTION READ ONLY;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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--error 1235
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SET TRANSACTION READ ONLY;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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--error 1235
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SET tx_read_only = 1;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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--error 1235
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SET transaction_read_only = 1;
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SET tx_read_only = 0;
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SET transaction_read_only = 0;
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