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I need more fields from that table, I just simplified the query for you to easily understand, so index-only scan won't work in this case

inside
– inside

2018-08-02 13:45:25 +00:00
Commented Aug 2, 2018 at 13:45
Also our current machine that runs the process has 8 gigs of RAM and 2 CPUs, do you think increasing that could make a difference?

inside
– inside

2018-08-02 14:25:48 +00:00
Commented Aug 2, 2018 at 14:25
2

@inside: Hard to say. Depends on the complete picture. What you describe sounds like "cold cache". I added some more above.

Erwin Brandstetter
– Erwin Brandstetter

2018-08-02 14:37:21 +00:00
Commented Aug 2, 2018 at 14:37
thanks a lot @erwin I'll play around with pre-warm, do you think it's feasible to prewarm the table if it has 40 million records?

inside
– inside

2018-08-02 14:45:51 +00:00
Commented Aug 2, 2018 at 14:45
@inside: Depends, depends. If you have enough cache. You may be able to only fetch relevant parts of the table into cache.

Erwin Brandstetter
– Erwin Brandstetter

2018-08-02 14:54:02 +00:00
Commented Aug 2, 2018 at 14:54

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