How to embed substituion variable into string in "psql"

Question

I'm calling a bash script which prepares some directories etc. At some point it also calls a psql script something like this:

psql $PSQL_LOGIN -v SERVER=$SERVER

So far so good.

The sql that I want to execute is something like this:

select 'wget :SERVER.xxxx.com?geoX=id1&geoY=id2' 
from table1 where id1 > zzz;

What I expect out of this is a string that looks like

wget test.xxx.com?geoX=yyy&geoY=qqq

In oracle I could do something like

select 'wget' || :SERVER '.xxx.com?geoX='|| id1 || etc etc

But I cannot make it work in postgres when it should be embedded in a string I've tried to escape the ' and withoud but so far no luck. Anybody got any ideas?

Answer 1

I've found the answer to this question. When calling from the shell script, its in the shell script itself that the escaping must be done. So instead of the above i should do the calling like this :

psql $PSQL_LOGIN -V SERVER="'$SERVER'"

that is double quote and single quote. Then the sql file can be done the same way as in Oracle :

select 'wget' || :SERVER '.example.com?geoX='|| id1 || ' etc