Question : I have a query where I want to fetch the first few rows from the table datasets ordered […]
Tag: postgresql-9.5
can’t connect to pgbouncer administration database
Question : I installed pgbouncer and I setup the pgbouncer.ini and my application can connect to pgbouncer and make queries. […]
postgres_fdw performance is slow
Question : The following query on a foreign takes about 5 seconds to execute on 3.2 million rows: SELECT x.”IncidentTypeCode”, […]
PostgreSQL: simple equality query returning no results for indexed columns
Question : I have a very large table (around 140M rows) with five columns: CREATE TABLE IF NOT EXISTS citations […]
Postgresql one master multiple slaves failover
Question : My problem is same as the one asked in below topic Streaming Replication Failover – how to point […]
Pull Data from one database and insert to another database ( same schema )
Question : I am currently working on moving data from one database to another in PostgreSQL. I am studying python […]
Filter is applied after DISTINCT ON
Question : There’s a script at the end that will fully create the schema and populate it with sample data. […]
Set values conditionally in Postgres UPSERT
Question : We have an UPSERT feature achieved through on conflict do set. How can I set the values conditionally […]
How to (a) rewrite a query that JOINs three tables and (b) make its execution more efficient
Question : I have three tables (A, B and C) with various data regarding mining facilities in them. But only […]
Postgres cascades truncates to unrelated tables
Question : I’ve created a number of tables in my public schema. Occasionally, I need to run a seeder to […]