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# Tests for PERFORMANCE_SCHEMA --source include/no_protocol.inc --source include/not_embedded.inc --source include/have_perfschema.inc --echo --echo ================================================================================ --echo SETUP --echo ================================================================================ --echo # Save current SHOW_COMPATIBILITY_56 setting SELECT @@global.show_compatibility_56 INTO @show_compatibility_56_save; SET @@global.show_compatibility_56=OFF; # Create a new connection, to get clean statistics connect(con1, localhost, root,,); # Create a table CREATE TABLE test.t1 (c1 INT); #prepare a statement PREPARE stmt1 FROM "SELECT c1 FROM test.t1"; #execute prepared statement; EXECUTE stmt1; # Check status from SHOW STATUS SHOW SESSION STATUS LIKE "%com_stmt_%prepare%"; #check the statistics SELECT * FROM performance_schema.session_status WHERE VARIABLE_NAME LIKE "%com_stmt%"; SELECT VARIABLE_VALUE FROM performance_schema.global_status WHERE VARIABLE_NAME LIKE "Com_stmt_reprepare" INTO @count_global_reprepare_before; # Alter table to make server reprepare the statement ALTER TABLE test.t1 ADD COLUMN c2 INTEGER; #execute prepared statement; EXECUTE stmt1; # Check status from SHOW STATUS SHOW SESSION STATUS LIKE "%com_stmt_%prepare%"; #check the statistics SELECT * FROM performance_schema.session_status WHERE VARIABLE_NAME LIKE "%com_stmt%"; SELECT VARIABLE_VALUE FROM performance_schema.global_status WHERE VARIABLE_NAME LIKE "Com_stmt_reprepare" INTO @count_global_reprepare_after; # Should increment by 1 SELECT @count_global_reprepare_after - @count_global_reprepare_before; --echo --echo ================================================================================ --echo CLEANUP --echo ================================================================================ DROP TABLE test.t1; --disconnect con1 --connection default --echo # Restore SHOW_COMPATIBILITY_56 setting SET @@global.show_compatibility_56 = @show_compatibility_56_save;