437 lines
19 KiB
Plaintext
437 lines
19 KiB
Plaintext
INSTALL PLUGIN clone SONAME 'CLONE_PLUGIN';
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CREATE TABLE t1(col1 INT PRIMARY KEY, col2 int, col3 varchar(64), col4 BLOB);
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CREATE TABLE t2(col1 INT PRIMARY KEY, col2 int, col3 varchar(64), col4 BLOB)
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PARTITION BY KEY(col1) PARTITIONS 5;
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CREATE PROCEDURE execute_dml(
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p_dml_type INT,
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p_key_min INT,
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p_key_range INT,
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p_loop_count INT,
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p_frequency INT,
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p_is_rand INT)
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BEGIN
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DECLARE v_idx INT DEFAULT 0;
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DECLARE v_commit INT DEFAULT 0;
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DECLARE v_key INT DEFAULT 0;
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/* Loop and INSERT data at random position */
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WHILE(v_idx < p_loop_count) DO
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/* Generate key between 1 to p_loop_count */
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IF p_is_rand = 1 THEN
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SET v_key = p_key_min + FLOOR(RAND() * p_key_range);
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ELSE
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SET v_key = p_key_min + (v_idx % p_key_range);
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END IF;
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CASE p_dml_type
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WHEN 0 THEN
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SET @clol3_text = CONCAT('Clone Test Row - ', v_key);
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INSERT INTO t1 VALUES(v_key, v_key * 10,
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@clol3_text, REPEAT('Large Column Data ', 2048))
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ON DUPLICATE KEY UPDATE col2 = col2 + 1;
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INSERT INTO t2 VALUES(v_key, v_key * 10,
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@clol3_text, REPEAT('Large Column Data ', 2048))
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ON DUPLICATE KEY UPDATE col2 = col2 + 1;
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WHEN 1 THEN
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UPDATE t1 SET col2 = v_idx + 1 WHERE col1 = v_key;
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UPDATE t2 SET col2 = v_idx + 1 WHERE col1 = v_key;
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WHEN 2 THEN
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DELETE FROM t1 WHERE col1 = v_key;
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DELETE FROM t2 WHERE col1 = v_key;
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ELSE
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DELETE FROM t1;
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DELETE FROM t2;
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END CASE;
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SET v_idx = v_idx + 1;
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/* Commit or rollback work at specified frequency. */
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IF v_idx % p_frequency = 0 THEN
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SET v_commit = FLOOR(RAND() * 2);
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IF v_commit = 0 AND p_is_rand = 1 THEN
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ROLLBACK;
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START TRANSACTION;
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ELSE
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COMMIT;
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START TRANSACTION;
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END IF;
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END IF;
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END WHILE;
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END|
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DROP TABLE t1;
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DROP TABLE t2;
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CREATE TABLE t1(col1 INT PRIMARY KEY, col2 int, col3 varchar(64), col4 BLOB)
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ROW_FORMAT = COMPRESSED;
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CREATE TABLESPACE tbs1 ADD DATAFILE 'tbs1_data1.ibd';
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CREATE TABLE t2(col1 INT PRIMARY KEY, col2 int, col3 varchar(64), col4 BLOB)
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TABLESPACE = tbs1;
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call execute_dml(0, 0, 20, 20, 10, 0);
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`col1` int(11) NOT NULL,
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`col2` int(11) DEFAULT NULL,
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`col3` varchar(64) DEFAULT NULL,
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`col4` blob,
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PRIMARY KEY (`col1`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPRESSED
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SELECT count(*) from t1;
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count(*)
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20
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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4 40 Clone Test Row - 4 umn Data Large Column Data Large
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5 50 Clone Test Row - 5 umn Data Large Column Data Large
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6 60 Clone Test Row - 6 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 DESC LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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19 190 Clone Test Row - 19 umn Data Large Column Data Large
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18 180 Clone Test Row - 18 umn Data Large Column Data Large
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17 170 Clone Test Row - 17 umn Data Large Column Data Large
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16 160 Clone Test Row - 16 umn Data Large Column Data Large
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15 150 Clone Test Row - 15 umn Data Large Column Data Large
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14 140 Clone Test Row - 14 umn Data Large Column Data Large
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13 130 Clone Test Row - 13 umn Data Large Column Data Large
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12 120 Clone Test Row - 12 umn Data Large Column Data Large
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11 110 Clone Test Row - 11 umn Data Large Column Data Large
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10 100 Clone Test Row - 10 umn Data Large Column Data Large
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`col1` int(11) NOT NULL,
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`col2` int(11) DEFAULT NULL,
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`col3` varchar(64) DEFAULT NULL,
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`col4` blob,
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PRIMARY KEY (`col1`)
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) /*!50100 TABLESPACE `tbs1` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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SELECT count(*) from t2;
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count(*)
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20
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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4 40 Clone Test Row - 4 umn Data Large Column Data Large
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5 50 Clone Test Row - 5 umn Data Large Column Data Large
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6 60 Clone Test Row - 6 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 DESC LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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19 190 Clone Test Row - 19 umn Data Large Column Data Large
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18 180 Clone Test Row - 18 umn Data Large Column Data Large
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17 170 Clone Test Row - 17 umn Data Large Column Data Large
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16 160 Clone Test Row - 16 umn Data Large Column Data Large
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15 150 Clone Test Row - 15 umn Data Large Column Data Large
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14 140 Clone Test Row - 14 umn Data Large Column Data Large
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13 130 Clone Test Row - 13 umn Data Large Column Data Large
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12 120 Clone Test Row - 12 umn Data Large Column Data Large
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11 110 Clone Test Row - 11 umn Data Large Column Data Large
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10 100 Clone Test Row - 10 umn Data Large Column Data Large
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# In connection default - Cloning database
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SET DEBUG_SYNC = 'clone_file_copy SIGNAL start_insert1 WAIT_FOR resume_clone1';
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SET GLOBAL clone_autotune_concurrency = OFF;
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SET GLOBAL clone_max_concurrency = 8;
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SET GLOBAL clone_valid_donor_list = 'HOST:PORT';
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CLONE INSTANCE FROM USER@HOST:PORT IDENTIFIED BY '' DATA DIRECTORY = 'CLONE_DATADIR';
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# In connection con1 - Insert [20 Rows - No commit]
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SET DEBUG_SYNC = 'now WAIT_FOR start_insert1';
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START TRANSACTION;
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call execute_dml(0, 50, 20, 20, 500, 0);
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# Flush all dirty buffers
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SET GLOBAL innodb_buf_flush_list_now = 1;
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SET DEBUG_SYNC = 'now SIGNAL resume_clone1';
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# In connection default - Cloning database
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# In connection con1
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ROLLBACK;
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# In connection default - Cloning database
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# Restart cloned database
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# restart: --datadir=CLONE_DATADIR
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`col1` int(11) NOT NULL,
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`col2` int(11) DEFAULT NULL,
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`col3` varchar(64) DEFAULT NULL,
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`col4` blob,
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PRIMARY KEY (`col1`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPRESSED
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SELECT count(*) from t1;
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count(*)
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20
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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0 Clone Test Row - 0 umn Data Large Column Data Large
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1 Clone Test Row - 1 umn Data Large Column Data Large
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2 Clone Test Row - 2 umn Data Large Column Data Large
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3 Clone Test Row - 3 umn Data Large Column Data Large
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4 Clone Test Row - 4 umn Data Large Column Data Large
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5 Clone Test Row - 5 umn Data Large Column Data Large
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6 Clone Test Row - 6 umn Data Large Column Data Large
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7 Clone Test Row - 7 umn Data Large Column Data Large
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8 Clone Test Row - 8 umn Data Large Column Data Large
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9 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 DESC LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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19 Clone Test Row - 19 umn Data Large Column Data Large
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18 Clone Test Row - 18 umn Data Large Column Data Large
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17 Clone Test Row - 17 umn Data Large Column Data Large
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16 Clone Test Row - 16 umn Data Large Column Data Large
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15 Clone Test Row - 15 umn Data Large Column Data Large
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14 Clone Test Row - 14 umn Data Large Column Data Large
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13 Clone Test Row - 13 umn Data Large Column Data Large
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12 Clone Test Row - 12 umn Data Large Column Data Large
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11 Clone Test Row - 11 umn Data Large Column Data Large
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10 Clone Test Row - 10 umn Data Large Column Data Large
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`col1` int(11) NOT NULL,
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`col2` int(11) DEFAULT NULL,
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`col3` varchar(64) DEFAULT NULL,
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`col4` blob,
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PRIMARY KEY (`col1`)
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) /*!50100 TABLESPACE `tbs1` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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SELECT count(*) from t2;
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count(*)
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20
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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0 Clone Test Row - 0 umn Data Large Column Data Large
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1 Clone Test Row - 1 umn Data Large Column Data Large
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2 Clone Test Row - 2 umn Data Large Column Data Large
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3 Clone Test Row - 3 umn Data Large Column Data Large
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4 Clone Test Row - 4 umn Data Large Column Data Large
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5 Clone Test Row - 5 umn Data Large Column Data Large
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6 Clone Test Row - 6 umn Data Large Column Data Large
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7 Clone Test Row - 7 umn Data Large Column Data Large
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8 Clone Test Row - 8 umn Data Large Column Data Large
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9 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 DESC LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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19 Clone Test Row - 19 umn Data Large Column Data Large
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18 Clone Test Row - 18 umn Data Large Column Data Large
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17 Clone Test Row - 17 umn Data Large Column Data Large
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16 Clone Test Row - 16 umn Data Large Column Data Large
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15 Clone Test Row - 15 umn Data Large Column Data Large
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14 Clone Test Row - 14 umn Data Large Column Data Large
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13 Clone Test Row - 13 umn Data Large Column Data Large
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12 Clone Test Row - 12 umn Data Large Column Data Large
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11 Clone Test Row - 11 umn Data Large Column Data Large
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10 Clone Test Row - 10 umn Data Large Column Data Large
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call execute_dml(3, 0, 1, 1, 1, 0);
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call execute_dml(0, 0, 10, 10, 2, 0);
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commit;
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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4 40 Clone Test Row - 4 umn Data Large Column Data Large
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5 50 Clone Test Row - 5 umn Data Large Column Data Large
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6 60 Clone Test Row - 6 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 DESC LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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6 60 Clone Test Row - 6 umn Data Large Column Data Large
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5 50 Clone Test Row - 5 umn Data Large Column Data Large
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4 40 Clone Test Row - 4 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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4 40 Clone Test Row - 4 umn Data Large Column Data Large
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5 50 Clone Test Row - 5 umn Data Large Column Data Large
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6 60 Clone Test Row - 6 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 DESC LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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6 60 Clone Test Row - 6 umn Data Large Column Data Large
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5 50 Clone Test Row - 5 umn Data Large Column Data Large
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4 40 Clone Test Row - 4 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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# restart:
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# In connection default - Cloning database
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SET DEBUG_SYNC = 'clone_file_copy SIGNAL start_dml WAIT_FOR resume_clone2';
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SET DEBUG_SYNC = 'clone_page_copy SIGNAL start_insert2 WAIT_FOR resume_clone3';
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SET GLOBAL clone_autotune_concurrency = OFF;
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SET GLOBAL clone_max_concurrency = 8;
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SET GLOBAL clone_valid_donor_list = 'HOST:PORT';
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CLONE INSTANCE FROM USER@HOST:PORT IDENTIFIED BY '' DATA DIRECTORY = 'CLONE_DATADIR';
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# In connection con1 - Insert [20 Rows - No commit]
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SET DEBUG_SYNC = 'now WAIT_FOR start_dml';
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START TRANSACTION;
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call execute_dml(1, 0, 20, 20, 10, 1);
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COMMIT;
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# Flush all dirty buffers
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SET GLOBAL innodb_buf_flush_list_now = 1;
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SET DEBUG_SYNC = 'now SIGNAL resume_clone2';
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SET DEBUG_SYNC = 'now WAIT_FOR start_insert2';
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START TRANSACTION;
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call execute_dml(0, 50, 20, 20, 500, 0);
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# Flush all dirty buffers
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SET GLOBAL innodb_buf_flush_list_now = 1;
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SET DEBUG_SYNC = 'now SIGNAL resume_clone3';
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# In connection default - Cloning database
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# In connection con1
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ROLLBACK;
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# In connection default - Cloning database
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# Restart cloned database
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# restart: --datadir=CLONE_DATADIR
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`col1` int(11) NOT NULL,
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`col2` int(11) DEFAULT NULL,
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`col3` varchar(64) DEFAULT NULL,
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`col4` blob,
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PRIMARY KEY (`col1`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPRESSED
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SELECT count(*) from t1;
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count(*)
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20
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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0 Clone Test Row - 0 umn Data Large Column Data Large
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1 Clone Test Row - 1 umn Data Large Column Data Large
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2 Clone Test Row - 2 umn Data Large Column Data Large
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3 Clone Test Row - 3 umn Data Large Column Data Large
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4 Clone Test Row - 4 umn Data Large Column Data Large
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5 Clone Test Row - 5 umn Data Large Column Data Large
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6 Clone Test Row - 6 umn Data Large Column Data Large
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7 Clone Test Row - 7 umn Data Large Column Data Large
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8 Clone Test Row - 8 umn Data Large Column Data Large
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9 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 DESC LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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19 Clone Test Row - 19 umn Data Large Column Data Large
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18 Clone Test Row - 18 umn Data Large Column Data Large
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17 Clone Test Row - 17 umn Data Large Column Data Large
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16 Clone Test Row - 16 umn Data Large Column Data Large
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15 Clone Test Row - 15 umn Data Large Column Data Large
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14 Clone Test Row - 14 umn Data Large Column Data Large
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13 Clone Test Row - 13 umn Data Large Column Data Large
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12 Clone Test Row - 12 umn Data Large Column Data Large
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11 Clone Test Row - 11 umn Data Large Column Data Large
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10 Clone Test Row - 10 umn Data Large Column Data Large
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`col1` int(11) NOT NULL,
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`col2` int(11) DEFAULT NULL,
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`col3` varchar(64) DEFAULT NULL,
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`col4` blob,
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PRIMARY KEY (`col1`)
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) /*!50100 TABLESPACE `tbs1` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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SELECT count(*) from t2;
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count(*)
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20
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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0 Clone Test Row - 0 umn Data Large Column Data Large
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1 Clone Test Row - 1 umn Data Large Column Data Large
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2 Clone Test Row - 2 umn Data Large Column Data Large
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3 Clone Test Row - 3 umn Data Large Column Data Large
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4 Clone Test Row - 4 umn Data Large Column Data Large
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5 Clone Test Row - 5 umn Data Large Column Data Large
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6 Clone Test Row - 6 umn Data Large Column Data Large
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7 Clone Test Row - 7 umn Data Large Column Data Large
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8 Clone Test Row - 8 umn Data Large Column Data Large
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9 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 DESC LIMIT 10;
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col1 col3 SUBSTRING(col4, 1000, 32)
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19 Clone Test Row - 19 umn Data Large Column Data Large
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18 Clone Test Row - 18 umn Data Large Column Data Large
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17 Clone Test Row - 17 umn Data Large Column Data Large
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16 Clone Test Row - 16 umn Data Large Column Data Large
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15 Clone Test Row - 15 umn Data Large Column Data Large
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14 Clone Test Row - 14 umn Data Large Column Data Large
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13 Clone Test Row - 13 umn Data Large Column Data Large
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12 Clone Test Row - 12 umn Data Large Column Data Large
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11 Clone Test Row - 11 umn Data Large Column Data Large
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10 Clone Test Row - 10 umn Data Large Column Data Large
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call execute_dml(3, 0, 1, 1, 1, 0);
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call execute_dml(0, 0, 10, 10, 2, 0);
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commit;
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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4 40 Clone Test Row - 4 umn Data Large Column Data Large
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5 50 Clone Test Row - 5 umn Data Large Column Data Large
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6 60 Clone Test Row - 6 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t1 ORDER BY col1 DESC LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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9 90 Clone Test Row - 9 umn Data Large Column Data Large
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8 80 Clone Test Row - 8 umn Data Large Column Data Large
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7 70 Clone Test Row - 7 umn Data Large Column Data Large
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|
6 60 Clone Test Row - 6 umn Data Large Column Data Large
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|
5 50 Clone Test Row - 5 umn Data Large Column Data Large
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|
4 40 Clone Test Row - 4 umn Data Large Column Data Large
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3 30 Clone Test Row - 3 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 LIMIT 10;
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col1 col2 col3 SUBSTRING(col4, 1000, 32)
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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|
1 10 Clone Test Row - 1 umn Data Large Column Data Large
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|
2 20 Clone Test Row - 2 umn Data Large Column Data Large
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|
3 30 Clone Test Row - 3 umn Data Large Column Data Large
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|
4 40 Clone Test Row - 4 umn Data Large Column Data Large
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|
5 50 Clone Test Row - 5 umn Data Large Column Data Large
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|
6 60 Clone Test Row - 6 umn Data Large Column Data Large
|
|
7 70 Clone Test Row - 7 umn Data Large Column Data Large
|
|
8 80 Clone Test Row - 8 umn Data Large Column Data Large
|
|
9 90 Clone Test Row - 9 umn Data Large Column Data Large
|
|
SELECT col1, col2, col3, SUBSTRING(col4, 1000, 32) FROM t2 ORDER BY col1 DESC LIMIT 10;
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|
col1 col2 col3 SUBSTRING(col4, 1000, 32)
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|
9 90 Clone Test Row - 9 umn Data Large Column Data Large
|
|
8 80 Clone Test Row - 8 umn Data Large Column Data Large
|
|
7 70 Clone Test Row - 7 umn Data Large Column Data Large
|
|
6 60 Clone Test Row - 6 umn Data Large Column Data Large
|
|
5 50 Clone Test Row - 5 umn Data Large Column Data Large
|
|
4 40 Clone Test Row - 4 umn Data Large Column Data Large
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|
3 30 Clone Test Row - 3 umn Data Large Column Data Large
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2 20 Clone Test Row - 2 umn Data Large Column Data Large
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1 10 Clone Test Row - 1 umn Data Large Column Data Large
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0 0 Clone Test Row - 0 umn Data Large Column Data Large
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# restart:
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DROP TABLE t1;
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DROP TABLE t2;
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DROP PROCEDURE execute_dml;
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DROP TABLESPACE tbs1;
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UNINSTALL PLUGIN clone;
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SET DEBUG_SYNC = 'RESET';
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