Pagination and the problem of the total result count
by
Laurenz Albe |
01.2023 When processing a big result set in an interactive application, you want to paginate the result set, that is, […]
Improving GROUP BY with CREATE STATISTICS
For a PostgreSQL time series report - find out how CREATE STATISTICS can improve performance when you group on expressions
UNION ALL, data types and performance
by
Laurenz Albe |
12.2022 A while ago, I wrote about the performance impact of query parameter data types. Recently I encountered a similar […]
Faceting large result sets in PostgreSQL
While the term faceting may sound foreign to you, you almost certainly have run into it in your adventures online. […]
Partition PostgreSQL: which partition did I INSERT my data into?
When partitioning in PostgreSQL, it's not obvious how to find the location of data afterwards. Here's some great partition tips and tricks.
Rewrite OR to UNION in PostgreSQL queries
by
Laurenz Albe |
11.2022 In my article that reviles OR, I showed how in certain cases, it is possible to rewrite OR in […]
pgbouncer: Types of PostgreSQL connection pooling
Connections are not free. Conserve your resources - find out about connection pooling in PostgreSQL with pgbouncer.
LISTEN / NOTIFY: Automatic client notification in PostgreSQL
If 1000's of users constantly poll the database, a lot of load is caused for no benefit. LISTEN / NOTIFY is a better way, find out how.
PostgreSQL: Sequences vs. Invoice numbers
What's the problem with using PostgreSQL database side sequences to create unique invoice numbers to send to clients? Let's find out.
gexec in psql: PostgreSQL poweruser practice
gexec PostgreSQL poweruser practice: Learn how to use the gexec command and the `||` operator to get the best results out of your psql.
