EXECUTE already tab-completes the list of prepared statements, but
DEALLOCATE was missing.
From: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
else if (Matches5("CREATE", "EVENT", "TRIGGER", MatchAny, "ON"))
COMPLETE_WITH_LIST3("ddl_command_start", "ddl_command_end", "sql_drop");
+/* DEALLOCATE */
+ else if (Matches1("DEALLOCATE"))
+ COMPLETE_WITH_QUERY(Query_for_list_of_prepared_statements);
+
/* DECLARE */
else if (Matches2("DECLARE", MatchAny))
COMPLETE_WITH_LIST5("BINARY", "INSENSITIVE", "SCROLL", "NO SCROLL",