Marc Dahn writes:
> So -- is there a way to let the planner look through the CASE?
No. It would actually be wrong to simplify the expression in the way
you're imagining, since "1 = case when bool_expr then 1 else 0 end"
does not give the same result as the plain bool_expr if the latter
yields nu
Hi,
To maintain an externally defined interface, I'd like to define a
function hasword(haystack, needle) that (essentially) returns 1 when
to_tsvector(haystack) @@ to_tsquery(needle), 0 otherwise.
I've tried
CREATE OR REPLACE FUNCTION ivo_hasword(haystack TEXT, needle TEXT)
RETUR