Re: insert from a select - Mailing list pgsql-sql

On Thursday, November 25, 2010 04:32:57 am Carla wrote:
> Sorry. I forgot some columns:
> 
> insert into tempclass (pkid, depart, sessionid, instrid, *classeq,
> facility, schedule*)
> Select cl.pkid, cl.depart, cl.sessionid, cl.instrid,
> cl.classseq,(select facility from esloc where esloc.pkid = cl.locationid)
> as facility, cl.schedule from esclass cl where cl.pkid in (14507,14508)
> 
> 2010/11/25 Carla <cgourofino@hotmail.com>
> 
> > Try to explicit the column names. Something like:
> > 
> > insert into tempclass (pkid, depart, sessionid, instrid)
> > 
> > Select cl.pkid, cl.depart, cl.sessionid, cl.instrid,
> > cl.classseq,(select facility from esloc where esloc.pkid = cl.locationid)
> > as
> > facility, cl.schedule from esclass cl where cl.pkid in (14507,14508)
> > 
> > 2010/11/24 John Fabiani <johnf@jfcomputer.com>
> > 
> > Hi,
> > 
> >>  I have a strange issue that is mostly likely me not understanding
> >> 
> >> something.
> >> I always thought that an insert statement would accept any select
> >> statement.
> >> I'm guessing I am wrong.
> >> 
> >> I have created a temporary table ("tempclass") that is exact match to an
> >> existing table ('esclass').
> >> 
> >> When I attempt to do the following
> >> insert into tempclass Select cl.pkid, cl.depart, cl.sessionid,
> >> cl.instrid, cl.classseq,(select facility from esloc where esloc.pkid =
> >> cl.locationid) as
> >> facility, cl.schedule from esclass cl where cl.pkid in (14507,14508)
> >> 
> >> I get the following error:
> >> 
> >> ERROR:  column "schedule" is of type date but expression is of type
> >> character
> >> varying
> >> LINE 1: ... cl.depart, cl.sessionid, cl.instrid, cl.classseq,(select
> >> fa...
> >> 
> >>                                                             ^
> >> 
> >> HINT:  You will need to rewrite or cast the expression.
> >> 
> >> The error makes no sense to me.  But most important if I just run the
> >> select
> >> statement it works perfectly.
> >> 
> >> Like I said the table "tempclass" (a temporary) is a dup of table
> >> "esclass" so
> >> none of it makes sense.  Of course I did say I'm missing something.
> >> 
> >> So why isn't the select statement working with the insert?
> >> 
> >> Johnf

Thanks to all  - after reading everyone responses I slept on it.  Today I 
realized that the order of the fields mattered as you all suggested.  

Thanks to all,
Johnf