71 lines
2.3 KiB
Plaintext
71 lines
2.3 KiB
Plaintext
--source include/force_myisam_default.inc
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--source include/have_myisam.inc
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#
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# The test is to run IS.TABLES query using two mode of reading
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# dynamic table statistics.
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#
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# Case 1. Using IS.TABLES query definition that joins with
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# mysql.tables.
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#
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# Case 2. Using IS.TABLES query definition that invokes UDF
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# that read stats.
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#
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# Approach 2) deals with opening the table while query execution for
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# non-InnoDB tables. And for InnoDB tables, the UDF's do not do
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# complete open_table() and invoke new handlerton API,
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# handlerton::get_table_statistics().
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#
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CREATE TABLE t1 (f0 INT KEY AUTO_INCREMENT, f1 INT, f2 INT);
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CREATE TABLE t2 (f0 INT KEY AUTO_INCREMENT, f1 INT, f2 INT) ENGINE=MYISAM;
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CREATE TABLE t3 (f0 INT KEY AUTO_INCREMENT, f1 INT, f2 INT, KEY (f0), KEY (f1), KEY (f1, f2));
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INSERT INTO t1 (f1, f2) VALUES (1,1 ),(2,2),(3,3),(4,4);
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INSERT INTO t1 (f1, f2) SELECT f1, f2 FROM t1;
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INSERT INTO t1 (f1, f2) SELECT f1, f2 FROM t1;
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INSERT INTO t1 (f1, f2) SELECT f1, f2 FROM t1;
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INSERT INTO t2 (f1, f2) SELECT f1, f2 FROM t1;
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INSERT INTO t3 (f1, f2) SELECT f1, f2 FROM t1;
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DELETE FROM t1 WHERE f1=1;
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DELETE FROM t2 WHERE f1=1;
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ANALYZE TABLE t1;
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ANALYZE TABLE t2;
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ANALYZE TABLE t3;
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SELECT COUNT(*) FROM t1;
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SELECT COUNT(*) FROM t2;
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SELECT COUNT(*) FROM t3;
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--echo Case 1: IS query uses mysql.table_stats to read dynamic table statistics
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SET SESSION information_schema_stats_expiry=default;
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--replace_column 9 #
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SELECT table_rows, avg_row_length, data_length, max_data_length, index_length,
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data_free, auto_increment, checksum, update_time, check_time
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FROM information_schema.tables WHERE table_name in ('t1', 't2');
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SELECT * FROM information_schema.statistics WHERE table_name='t3'
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ORDER BY index_name, seq_in_index;
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--echo Case 2: IS query uses UDF's to read dynamic table statistics
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SET SESSION information_schema_stats_expiry=0;
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--replace_column 9 #
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SELECT table_rows, avg_row_length, data_length, max_data_length, index_length,
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data_free, auto_increment, checksum, update_time, check_time
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FROM information_schema.tables WHERE table_name in ('t1', 't2');
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SELECT * FROM information_schema.statistics WHERE table_name='t3'
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ORDER BY index_name, seq_in_index;
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SET SESSION information_schema_stats_expiry=default;
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DROP TABLE t1;
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DROP TABLE t2;
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DROP TABLE t3;
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