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
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