Thank you very much, Tom. We'll try it and report if there is any
significant impact performance-wise.
Best regards,
KC.
At 00:25 06/03/25, Tom Lane wrote:
K C Lau <kclau60@xxxxxxxxxxxxxx> writes:
> Indeed, I get rejected even with:
> .. WHERE ANY(array) = 'xx'
> It would only work as documented in the manual (8.10.5):
> SELECT * FROM sal_emp WHERE 10000 = ANY (pay_by_quarter);
That's not changing any time soon; the SQL spec defines only the second
syntax for ANY, and I believe there would be syntactic ambiguity if we
tried to allow the other.
> With 8.1.3, I get an error when trying to do this on a Text[] column :
> .. WHERE ANY(array) LIKE 'xx%'
If you're really intent on doing that, make an operator for "reverse
LIKE" and use it with the ANY on the right-hand side.
regression=# create function rlike(text,text) returns bool as
regression-# 'select $2 like $1' language sql strict immutable;
CREATE FUNCTION
regression=# create operator ~~~ (procedure = rlike, leftarg = text,
regression(# rightarg = text, commutator = ~~);
CREATE OPERATOR
regression=# select 'xx%' ~~~ any(array['aaa','bbb']);
?column?
----------
f
(1 row)
regression=# select 'xx%' ~~~ any(array['aaa','xxb']);
?column?
----------
t
(1 row)
regression=#
regards, tom lane
