An SQL statement that calls the Getlastsql () method output after a one-to-one correlation query is used with relation coherence operation query

Title:
A SQL statement that calls the Getlastsql () method output is not an associated query statement when a one-to-one correlation query is used with relation coherent operation queries.
For example:

$list $db->relation (true)->where ($where)->order (' blogID desc ')->limit ($ Page->firstrow. ', '. $Page->listrows), select ();             $sql $db->getlastsql ();

The output SQL statement is:

SELECT * from ' uch_blog ' WHERE ' category ' = 134 ORDER by blogid Desc LIMIT 0,20  

An SQL statement that calls the Getlastsql () method output after a one-to-one correlation query is used with relation coherence operation query