Re: left outer join and values()

Tom Allison <tom(at)tacocat(dot)net> writes:
> select v.history.idx, v.token_idx
> from (
> values ((3,1),(3,2))) as v(history_idx, token_idx)
> left outer join history_token ht on v.history_idx = ht.history_idx
> and v.token_idx = ht.token_idx
> where ht.history_idx is null;
> ERROR: operator does not exist: record = integer
> LINE 4: left outer join history_token ht on v.history_idx = ht.histo...
> ^

You've got too many parentheses --- the system thinks that "values"
specification is a single row containing two fields that are each
two-column records. I think you want

select v.history_idx, v.token_idx
from (
values (3,1),(3,2)) as v(history_idx, token_idx)
left outer join history_token ht on v.history_idx = ht.history_idx
and v.token_idx = ht.token_idx
where ht.history_idx is null;

Note the "history.idx" typo as well.

regards, tom lane