All Questions
7 questions
7
votes
1
answer
5k
views
Performance issues with inherited tables and indices
I have a PostgreSQL database with a master table and 2 child tables.
My master table:
CREATE TABLE test (
id serial PRIMARY KEY,
date timestamp without time zone
);
CREATE INDEX ON test(...
- 285
3
votes
1
answer
4k
views
Postgres 9.5 foreign table inheritance not using indexes
In PostgreSQL 9.5.0 I have a partitioned table that collects data by months. I tried to use the new PostgreSQL feature of foreign table inheritance and pushed one month of data to another PostgreSQL ...
1
vote
1
answer
771
views
Improve PostgreSQL SELECT performance in a parent table (inheritance)
I have a PostgreSQL 9.2 database where each account has a schema, like below:
My_Database
|-> Schemas
|-> AccountA
|-> AccountB
|-> AccountC
|-> AccountD
|-> ...
- 113
1
vote
1
answer
539
views
Will switching from Concrete Table Inheritance to Single Table Inheritance improve the performance of my queries?
I currently have an application that allows people to view and share 10 different types of posts (ex SportsPost, WorldNewsPost, TechnologyPost, etc). All posts types are conceptually the same, but ...
- 111
1
vote
0
answers
1k
views
PostgreSQL doesn't use index on inherited tables
I have two tables in PostgreSQL 9.4.5 deployed on Amazon RDS:
an append only, weekly partitioned, All Positions table. These store all position readings from about 100,000 sensors. There are about 50 ...
- 111
0
votes
1
answer
429
views
Progressive child tables scan in PostgreSQL?
We have append-only events table where events from different devices are being collected.
We use PostgreSQL 9.6 and pg_partman to split the table into monthly partitions.
Data is partitioned using ...
0
votes
1
answer
437
views
Is it possible to set order in which inherited tables a scanned in postgresql?
I have a postgresql measurement table which is partitioned based on logdate column by month. Suppose I have city_id integer column and want to select latest row with city_id = 125.
When I run explain ...
- 1