Monthly Cohort analysis in PSQL
I have a table orders which have a column user_id. I am trying to create User Cohort.
How to get list of customized options in postgres
In postgres I can define custom option using
Copying tab-delimited file in Postgress with empty files
I’m trying to import a tab-delimited file using the PSql COPY command
How to create index on several ORDER BY conditions?
On postgresql@12 I have a table with 300 millions rows and first query executes < 1s, but the second is 2 minutes. Why? I created all possible indexes.
First query (< 1s):