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This enables optimizer_trace output for the next SQL command. Identical as if one would have done: - Store value of @@optimizer_trace - Set @optimizer_trace="enabled=on" - Run query - SELECT * from OPTIMIZER_TRACE - Restore value of @@optimizer_trace This is a great time saver when one wants to quickly check the optimizer trace for a query in a mtr test. |
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| .. | ||
| async_example.c | ||
| client_priv.h | ||
| CMakeLists.txt | ||
| completion_hash.cc | ||
| completion_hash.h | ||
| echo.c | ||
| my_readline.h | ||
| mysql.cc | ||
| mysql_plugin.c | ||
| mysql_upgrade.c | ||
| mysqladmin.cc | ||
| mysqlbinlog.cc | ||
| mysqlcheck.c | ||
| mysqldump.c | ||
| mysqlimport.c | ||
| mysqlshow.c | ||
| mysqlslap.c | ||
| mysqltest.cc | ||
| readline.cc | ||
| sql_string.cc.dontuse | ||
| sql_string.h.dontuse | ||