RE: How to tune SQL performance of function based columns of a view

["Wetmore, Matthew (CTR)" <Matthew.Wetmore@xxxxxxxxxxxxx>]

Make it a Materialized View with storage and you can index on a column. You can index a MV unlike a regular view.

 

From: M Sarwar <sarwarmd02@xxxxxxxxxxx>
Sent: Sunday, April 7, 2024 9:52 PM
To: Ron Johnson <ronljohnsonjr@xxxxxxxxx>; pgsql-admin@xxxxxxxxxxxxxxxxxxxx
Subject: [EXTERNAL] Re: How to tune SQL performance of function based columns of a view

 

 

Hi Ron,

 

I have analyzed and vacuumed following 2 tables which are used by the views. 

 

TEK_INSPECTION_LIST_MCM

TEST_PART_DETAILS_ALL_MCM_MID

 

I am still seeing unacceptable response time.

 

Is there any other way to tune a SQL which is referring a view?

 

Thanks,

Sarwar

 

 

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From: Ron Johnson <ronljohnsonjr@xxxxxxxxx>
Sent: Saturday, April 6, 2024 9:58 AM
To: pgsql-admin@xxxxxxxxxxxxxxxxxxxx <pgsql-admin@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: How to tune SQL performance of function based columns of a view

 

 

Postgresql does auto-vacuum and auto-analyze, so the table might have been analyzed and vacuumed.

 

Table pg_stat_user_tables records the last time that user tables were vacuumed and analyzed.

 

On Sat, Apr 6, 2024 at 4:44 AM M Sarwar <sarwarmd02@xxxxxxxxxxx> wrote:

This is Pg 13.

It is running on Aws / Rds.

I am not doing any Vacuum/ Analyze manually.

Thanks,

Sarwar

 

 

 

 

Sent from my Galaxy

 

 

 

-------- Original message --------

From: Ron Johnson <ronljohnsonjr@xxxxxxxxx>

Date: 4/6/24 1:15 AM (GMT-05:00)

To: pgsql-admin@xxxxxxxxxxxxxxxxxxxx

Subject: Re: How to tune SQL performance of function based columns of a view

 

On Sat, Apr 6, 2024 at 12:33 AM M Sarwar <sarwarmd02@xxxxxxxxxxx> wrote:

 

Hello,

 

I am working on SQL performance issue.

 

1. What PG version?

2. When did you last VACUUM and ANALYZE the base tables?