On 3/12/2009 7:58 AM, erobles wrote:
Hi!
In postgresql 7.2 i can use this kind of querys:
select table.* ;
select * from table1 where table1.key=othertable.key;
but in postgresql 8.3 i have an error like this:
ERROR: missing FROM-clause entry for table ...
what should i do to solve this? :-)
You've already been pointed to the workaround backward-compat option.
What's happening here is that you're doing an implicit inner join. Your
query is being interpreted by PostgreSQL as if you wrote:
select * from table1, othertable where table1.key=othertable.key;
though I prefer to write it as the IMO more readable:
select * from table1 INNER JOIN othertable ON table1.key=othertable.key;
This behaviour isn't supported anymore partly is because it's way too
easy to write:
select * from table1 where table1.key=typotable.key;
and get confusing error messages or, if `typotable' exists, confusing
query results. I'm pretty sure there were more reasons too, but I wasn't
really active on the lists when that was going on.
It's also really confusing when reading a query.
So - as already pointed out, you will need to re-write your queries to
add the required tables to the from clause.
--
Craig Ringer
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