Mohammad Heykal Abdillah wrote:
> Hi all,
>
> Right now i am trying to understand how SQL parser is work.
>
> My question is there anyway to get list of table name and its atribut
> before raw parser is analyze?
>
> Because i like to understand how PostgreSQL "break-down" the asterik at
> target list, specialy in "natural join" case where PostgreSQL can give
> query result that have unabigous attribut and match the right join key.
>
>
>
AIUI, expanding '*' is not done in the parser. The parser just makes an
A_star node.
See src/backend/gram.y for the parser spec.
Maybe you need to explain what exactly you're trying to do.
cheers
andrew
