ADD: creator handles now operators within an expression subtree (according to issue 66).
ADD: creator handles now operators within an expression subtree (according to issue 66).
google-code-export/php-sql-parser,mnpenner/php-sql-parser,sulheru/php-sql-parser,476552238li/php-sql-parser,maietta/php-sql-parser,xiaoyao-work/php-sql-parser