O [EMAIL PROTECTED] έγραψε στις Mar 17, 2006 : > > > >SELECT c1.relname,c2.relname from pg_constraint cons,pg_class c1, > pg_class > >c2 where cons.conrelid=c1.oid and cons.confrelid = c2.oid; > > > >for column(s) names you will have to do extra homework. > > Thanks! I have obtained my query! Here is: > > SELECT > (SELECT relname FROM pg_catalog.pg_class WHERE oid=conrelid) AS > fromTbl, > (SELECT relname FROM pg_catalog.pg_class WHERE oid=confrelid) AS > toTbl, > (SELECT attname FROM pg_catalog.pg_attribute WHERE attrelid=conrelid > AND conkey[1]=attnum) AS viaCol > FROM pg_catalog.pg_constraint AS rel WHERE contype='f';
Well thats it if you use only *single column* Foreign keys. In the general case the above will need extra work. Of course you will also have to ensure that the constraint is indeed a FK constraint, that the column is not droped, etc.... which leads to the answer that enabling statement logging, and then \d and watching the log is a very good friend too. > > TIA > Roberto Colmegna > > > > > Tiscali ADSL 4 Mega Flat > Naviga senza limiti con l'unica Adsl a 4 Mega di velocitΓ a soli 19,95 β¬ > al mese! > Attivala subito e hai GRATIS 2 MESI e l'ATTIVAZIONE. > http://abbonati.tiscali.it/banner/middlepagetracking.html?c=webmailadsl&r=http://abbonati.tiscali.it/adsl/sa/4flat_tc/&a=webmail&z=webmail&t=14 > -- -Achilleus ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
