MOON
Server: Apache/2.2.21 (Unix) mod_ssl/2.2.21 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4
System: Linux vps.panamaemb.org.sg 3.10.0-1160.80.1.vz7.191.4 #1 SMP Thu Dec 15 20:31:06 MSK 2022 x86_64
User: panama (500)
PHP: 5.2.17
Disabled: NONE
Upload Files
File: //proc/3/cwd/usr/share/mysql-test/include/execute_with_statistics.inc
# include/execute_with_statistics.inc
#
# SUMMARY
#
#    Explain and execute the select statment in $query.
#    Then report 'Last_query_cost' estimate from the query
#    optimizer and total number of 'Handler_read%' when the
#    query was executed.
#    Intended usage is to verify that there are not regressions
#    in either calculated or actuall cost for $query.
#
# USAGE
#
#    let $query= <select statement>;
#    --source include/execute_with_statistics.inc
#
# EXAMPLE
#    t/greedy_optimizer.test
#

eval EXPLAIN $query;
SHOW STATUS LIKE 'Last_query_cost';

FLUSH STATUS;
eval $query;
SELECT SUM(variable_value) AS Total_handler_reads
   FROM information_schema.session_status
   WHERE variable_name LIKE 'Handler_read%';