I want to use pgsql to send the command:
Copy sometable from 'sometable.csv';
But only if 'sometable.csv' exists;
If 'sometable.csv' does not exist as an input table I want to continue
the next command.
My full procedure is as follows and any help is greatly appreciated.
Thanks
Richard
CREATE OR REPLACE FUNCTION restore_database(text) RETURNS text AS
$BODY$
declare
tblname record;
cnt record;
tname varchar :='';
tquery varchar :='';
filename varchar :='';
begin
tname := '';
for tblname in select tablename from pg_tables WHERE not(tablename like
'pg_%') and not(tablename like 't_%')
and not(tablename like '%_list') order by tablename loop raise notice '%',tblname.tablename; tquery := 'delete from
'|| tblname.tablename ; execute tquery; filename := '/'||$1||'/'|| lower(tblname.tablename)||'.csv'; tquery := 'copy
'|| tblname.tablename || ' from ' ||
quote_literal(filename); execute tquery;
end loop;
return tquery;
end;
$BODY$ LANGUAGE 'plpgsql' VOLATILE;
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