sdfasdfas sdfasdfs <descuarinjado@xxxxxxxx> writes:
> I have a table with this index:
> create index ARTISTS_NAME on ARTISTS (
> lower(AR_NAME)
> );
> Te index is over a colum with this definition:
> AR_NAME VARCHAR(256) null,
> I want to optimize this query:
> select * from artists where lower(ar_name) like
> lower('a%') order by lower(ar_name) limit 20;
> I think the planner should use the index i have.
Update to 7.4, or declare the column as TEXT instead of VARCHAR.
Older versions aren't very bright about situations involving
implicit coercions.
regards, tom lane
