Re: slow query

2021-06-08 Thread Ayub Khan
below is function definition of is_menu_item_available, for each item based on current day time it returns when it's available or not. The same api works fine on oracle, I am seeing this slowness after migrating the queries to postgresql RDS on AWS CREATE OR REPLACE FUNCTION is_menu_item_availab

Re: slow query

2021-06-08 Thread Tom Lane
Ayub Khan writes: > I checked all the indexes are defined on the tables however the query seems > slow, below is the plan. Can any one give any pointers to verify ? You might try to do something about the poor selectivity estimate here: > -> Index Scan usin

Re: slow query

2021-06-08 Thread Ayub Khan
In AWS RDS performance insights the client writes is high and the api which receives data on the mobile side is slow during load test. On Tue, 8 Jun 2021, 19:03 Ayub Khan, wrote: > > I checked all the indexes are defined on the tables however the query > seems slow, below is the plan. Can any o

Re: slow query

2021-06-08 Thread Christophe Pettus
> On Jun 8, 2021, at 09:03, Ayub Khan wrote: > I checked all the indexes are defined on the tables however the query seems > slow, below is the plan. It's currently running in slightly under six milliseconds. That seems reasonably fast given the number of operations required to fulfill it.

slow query

2021-06-08 Thread Ayub Khan
I checked all the indexes are defined on the tables however the query seems slow, below is the plan. Can any one give any pointers to verify ? SELECT a.menu_item_id, a.menu_item_name, a.menu_item_category_id, b.menu_item_category_desc, c.menu_item_variant_id, c.menu_item_variant_type_id, c.price,