Hi All,<br />I need to check type of expressions appearing in a Query tree and I am using exprType() for that. But for
certainexpressions their type is not defined like List, FromExpr, JoinExpr. Such expressions are acceptable in the
code,but expressions which have a type need to obey certain criteria like they can not be composite type etc.
exprType()throws error when it's passed expressions which do not have type and hence I can not use it directly. Is
therea function, which would tell me whether a given expression can have a type or not?<br clear="all" /><br />-- <br
/>BestWishes,<br />Ashutosh Bapat<br />EntepriseDB Corporation<br />The Enterprise Postgres Company<br /><br />