Current File : //usr/share/mysql-test/suite/perfschema/t/table_name.test
#
# Performance Schema
#
# Verify that the Performance Schema correctly identifies normal and temporary
# tables with non-standard names.
# The server uses the table name prefix "#sql" for temporary and intermediate
# tables, however user-defined tables having the "#sql" prefix are also permitted.
# Independent of the table name, temporary or intermediate tables always have the
# "#sql" prefix in the filename. (For non-temporary tables starting with "#",
# the "#" is encoded to @0023 in the filename.)
#
# Given the ambiguity with temporary table names, the Performance Schema identifies
# temporary tables tables either by the table category or by the filename.
#
--source include/have_perfschema.inc
--source include/not_embedded.inc
--echo
--echo #
--echo # TEST 1: Normal tables prefixed with "#sql" and "sql".
--echo #
USE test;
CREATE TABLE `#sql_1` (a int, b text);
# INSERT forces path through get_table_share()
INSERT INTO `#sql_1` VALUES(1,'one');
--echo
CREATE TABLE `sql_1` (a int, b text);
INSERT INTO `sql_1` VALUES(1,'one');
--echo
--echo # Verify that the tables are treated as normal tables .
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo # Drop the tables, verify that the table objects are removed.
--echo
DROP TABLE `#sql_1`;
DROP TABLE `sql_1`;
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo #
--echo # TEST 2: Temporary tables, no special prefix.
--echo #
CREATE TEMPORARY TABLE sql_temp2_myisam (a int, b text) ENGINE=MYISAM;
INSERT INTO sql_temp2_myisam VALUES(1,'one');
--echo
CREATE TEMPORARY TABLE sql_temp2_innodb (a int, b text) ENGINE=INNODB;
INSERT INTO sql_temp2_innodb VALUES(1,'one');
--echo
--echo # Confirm that the temporary tables are ignored.
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo # Drop the tables, verify that the table objects are not created.
--echo
DROP TABLE sql_temp2_myisam;
DROP TABLE sql_temp2_innodb;
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo #
--echo # TEST 3: Temporary tables with the "#sql" prefix.
--echo #
CREATE TEMPORARY TABLE `#sql_temp3_myisam` (a int, b text) ENGINE=MYISAM;
CHECK TABLE `#sql_temp3_myisam`;
INSERT INTO `#sql_temp3_myisam` VALUES(1,'one');
--echo
CREATE TEMPORARY TABLE `#sql_temp3_innodb` (a int, b text) ENGINE=INNODB;
CHECK TABLE `#sql_temp3_innodb`;
INSERT INTO `#sql_temp3_innodb` VALUES(1,'one');
--echo
--echo # Confirm that the temporary tables are ignored.
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo # Drop the temporary tables.
--echo
DROP TABLE `#sql_temp3_myisam`;
DROP TABLE `#sql_temp3_innodb`;
--echo
--echo # Confirm that the temporary tables are still ignored.
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo #
--echo # TEST 4: Special case: MyISAM temporary tables are recreated as non-temporary
--echo # when they are truncated.
--echo #
CREATE TEMPORARY TABLE `sql_temp4_myisam` (a int, b text) ENGINE=MYISAM;
INSERT INTO `sql_temp4_myisam` VALUES(1,'one');
--echo
CREATE TEMPORARY TABLE `#sql_temp4_myisam` (a int, b text) ENGINE=MYISAM;
INSERT INTO `#sql_temp4_myisam` VALUES(1,'one');
--echo
--echo # Confirm that the MyISAM temporary tables are ignored.
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo # Truncate the MyISAM temporary tables, forcing them to be recreated as non-temporary.
--echo
TRUNCATE TABLE `sql_temp4_myisam`;
TRUNCATE TABLE `#sql_temp4_myisam`;
--echo
--echo # Confirm that the recreated MyISAM tables are still regarded as temporary and ignored.
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo # Drop the recreated MyISAM tables;
--echo
DROP TABLE `sql_temp4_myisam`;
DROP TABLE `#sql_temp4_myisam`;
--echo
--echo # Confirm that the recreated temporary tables are still ignored.
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo #
--echo # TEST 5: Generate temporary tables with ALTER MyISAM table.
--echo #
USE test;
CREATE TABLE t1 (a int) ENGINE=MYISAM;
INSERT INTO t1 VALUES (1), (2), (3);
# Force a path throug mysql_alter_table() and ha_create_table().
ALTER TABLE t1 ADD COLUMN (b int);
--echo
--echo # Confirm that the recreated temporary tables are still ignored.
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
--echo
--echo # Drop the MyISAM table
--echo
DROP TABLE t1;
--echo
--echo # Confirm that no tables remain;
--echo
SELECT object_type, object_schema, object_name
FROM performance_schema.objects_summary_global_by_type
WHERE object_schema="test";
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