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Results tagged with postgresql-performance
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user 4403
Performance issues with PostgreSQL queries
2
votes
1
answer
275
views
How to gauge performance of switching to PostgreSQL table partitioning?
I have a table in a PostgreSQL database containing about 100m records that's mostly read-only with a few monthly writes to update new data.
It has over 300 columns, and is heavily indexed for specific …
- 1,385
4
votes
1
answer
4k
views
How to optimize min/max queries for large tables on PostgreSQL
How do you index a table in PostgreSQL so that min/max queries return as quickly as possible?
I have a large table with a couple hundred million rows. Each row as a source_id and a date when the reco …
- 1,385
9
votes
1
answer
17k
views
PostgreSQL not using index during count(*)
I have a COUNT(*) query in PostgreSQL that runs often, and looks like:
SELECT COUNT(*)
FROM customer
WHERE source_id IN (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
This query take …
- 1,385