statement error ^External error: unimplemented_sql/n5cs7ue5gzpde: SHOW VARIABLES \(MySQL syntax\)$
SHOW VARIABLES;

statement error ^External error: unimplemented_sql/n5cs7ue5gzpde: SHOW VARIABLES \(MySQL syntax\)$
SHOW GLOBAL VARIABLES;

statement error ^External error: unimplemented_sql/n5cs7ue5gzpde: SHOW VARIABLES \(MySQL syntax\)$
SHOW SESSION VARIABLES;

statement error ^External error: unimplemented_sql/n5cs7ue5gzpde: SHOW VARIABLES \(MySQL syntax\)$
SHOW VARIABLES LIKE '%foo%';