[SQL] Re: [HACKERS] RFC - change of behaviour of pg_get_userbyid & pg_get_viewdef?

2000-09-24 Thread Philip Warner
At 19:22 24/09/00 -0500, Dominic J. Eidson wrote: > >In these cases, is NULL = 0? - What if it returns the UID for "root" >(typically UID 0)... I think an error message should/would be better in >this case. > No NULL is NULL, a special value that usually means 'nothing found'. -

pgsql-sql@postgresql.org

2000-09-24 Thread Dominic J. Eidson
On Sun, 24 Sep 2000, Philip Warner wrote: > Two routines do eccentric things when they can't find required supporting > data: > > pg_get_userbyid > > returns 'unknown (UID=)' when the UID does not exist. [Snip] > The proposal is to return NULL in the above cases - in the final case, > pro

[SQL] Re: [HACKERS] RFC - change of behaviour of pg_get_userbyid & pg_get_viewdef?

2000-09-24 Thread Tom Lane
Philip Warner <[EMAIL PROTECTED]> writes: > pg_get_viewdef > returns 'Not a view' when passed a non-existant or non-view table > it also signals errors when the underlying metadata can not be found. > The proposal is to return NULL in the above cases - in the final case, > probably also

Re: [SQL] Select between two databases

2000-09-24 Thread Stephan Szabo
On Sun, 24 Sep 2000, Indraneel Majumdar wrote: > Does any one know how I may select between two databases running on same > machine or on different machines eg. > > select colA1 from tableA1 where colA2 in (select colB1 from tableB1); > > here tableA1 and tableB1 are in different databases. The

Re: [SQL] Select between two databases

2000-09-24 Thread Indraneel Majumdar
Not working, but thanks anyway. Can anyone point out the relevant area of the source where queries are handled? Thanks, Indraneel On Sun, 24 Sep 2000, Fredrick Bartlett wrote: > Not sure if same can be accomplished with different servers. > Try the following for database's on one server, use

Re: [SQL] Select between two databases

2000-09-24 Thread Fredrick Bartlett
Not sure if same can be accomplished with different servers. Try the following for database's on one server, use alias & dot notation... select a1.colA1 from myDatabase1.tableA1 a1 where a1.A2 in (select b1.colB1 from myDatabase2.tableB1 b1) Indraneel Majumdar wrote: > Hi, > > Does any one kno

[SQL] Select between two databases

2000-09-24 Thread Indraneel Majumdar
Hi, Does any one know how I may select between two databases running on same machine or on different machines eg. select colA1 from tableA1 where colA2 in (select colB1 from tableB1); here tableA1 and tableB1 are in different databases. The two databases might be under the same postmaster or on