Hello When I worked on parametrised DO statement, I had to solve following issue:
Syntax is: DO (param list) $$ ... $$ LANGUAGE ... USING expr_list What is correct way for evaluation of expr_list with specified target types? I used two techniques: 1) evaluation expressions - http://archives.postgresql.org/pgsql-hackers/2012-07/msg00340.php this code is elegant and works well - with one significant issue - doesn't support subqueries 2) SPI with parse_tree execution - SPI expect so SQL will be entered in plain text form. But sometimes we have as input parsed tree - as result of some parser. We can serialize tree to string, but then we get different queryString and we will have problem with possible error identification in queryString, I patched SPI and append a two functions for evaluation parsed tree. Probably it should be better done without SPI, but I missing some like DestSPI for general usage. http://archives.postgresql.org/pgsql-hackers/2012-07/msg00361.php What is correct way for solution of this task? I am thinking so there some interface is missing Regards Pavel -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
