Re: Partitioned table scanning all pertitions when the where clause specifies the partition key - Mailing list pgsql-admin

On 24/10/2024 18:16, Keith Fiske wrote:
>
> Since your index is functional, in order to use the index, the queries 
> must use that same function in the condition. Try doing
>
> EXPLAIN SELECT * FROM customers where lastname = upper('BORRIS');

I thought you'd need to use the same function exactly.


EXPLAIN SELECT * FROM customers where upper(lastname) = upper('BORRIS');


As the index is on 'upper(lastname)', 'upper(lastname)' has to be in the 
query


Paul