> It is not difficult to output parsed query in some tool readable > format but it comes with a maintain overhead: once tools rely on it, > we have to conform to some schema continuously, like the xml/xmlns. Do > we want to take this? Depends on how far the tools can go with this > exposed information.
I think part of the problems could be resolved by using adequate API to the parse tree. For example, pgpool-II imports PostgreSQL's raw parser to do a query rewriting. The parse tree format could be changed release by release but essential API for it (for example tree_walker) is very stable. As a result, the workforce for rewriting rarely needs to be modified. Best regards, -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese:http://www.sraoss.co.jp -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
