Re: slow performance with cursor

2021-06-25 Thread Tom Lane
Ayub Khan writes: > Is there any setting which needs to be modified to improve the performance > of cursors. Also facing slow response with reading blobs (images) from db. > Not an ideal way for storing images in db but this is a legacy application > and wanted to check if there a quick tweak whic

Re: slow performance with cursor

2021-06-25 Thread Ayub Khan
slowness is on the database side as I see the CPU goes high for procedures returning the result using cursors. If the same query is executed as a prepared statement from Java client there is no slowness. for example there are 84 rows returning all are text data from a query. If the result is retur

Re: slow performance with cursor

2021-06-25 Thread Justin Pryzby
On Fri, Jun 25, 2021 at 07:09:31PM +0300, Ayub Khan wrote: > I am using postgresql 12 and using cursors in a stored procedure, > executing procedure which has cursor is slowing down the call. However if I > do not use the cursor and just execute the queries using JDBC (Java client) > it's fast. Is

slow performance with cursor

2021-06-25 Thread Ayub Khan
I am using postgresql 12 and using cursors in a stored procedure, executing procedure which has cursor is slowing down the call. However if I do not use the cursor and just execute the queries using JDBC (Java client) it's fast. Is there any setting which needs to be modified to improve the perfor