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Category: How To

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Here you can find all blog posts about the Category: How To. You can go back to all blog posts or take a look into our other categories & tags.

Beating Uber with a PostgreSQL prototype

by Hans-Jürgen Schönig | 05.2016
How to beat the latency of Uber's geo-fencing query by just using nice PostgreSQL code and 30 minutes of programming time.

Migrating from Oracle: One word about pg_type

by Hans-Jürgen Schönig | 04.2016
Here is some pg_type related trickery, which might be entertaining. A workaround for porting the pg_type table from Oracle to PostgreSQL.

Registering PostgreSQL as a service on Windows with pg_ctl

by Hans-Jürgen Schönig | 04.2016
If you happen to run Windows, pg_ctl provides a nice way to register a PostgreSQL service. We show you how to do it right.

pg_service.conf: The forgotten config file

by Hans-Jürgen Schönig | 02.2016
Configure services in a config file: pg_service.conf, and address them without having to worry about host, port, user and so on.

Permissions: A little trickery

by Hans-Jürgen Schönig | 12.2015
Learn how to use the INHERIT keyword in PostgreSQL, which allows a role to inherit permissions from another role. There is a catch, however.

Producing LaTeX output

by Hans-Jürgen Schönig | 12.2015
By coincidence I noticed that psql can produce perfect LaTeX code. How cool is that? We show you how to do it, with examples.

Flexible grouping: Some dirty SQL trickery

by Hans-Jürgen Schönig | 11.2015
How to group PostgreSQL data with some dirty SQL trickery. Find the difference between timestamps; how to use flexible grouping.

Scaling PostgreSQL: Using more than just one core for aggregation

by Hans-Jürgen Schönig | 09.2015
Unfortunately PostgreSQL cannot scale a single query to more than one core. We have done some experiments to see how scaling up can work.

Fuzzy search unleashed

by Hans-Jürgen Schönig | 08.2015
Fuzzy search solves the problem of spelling errors in searches. The goal is really to make sure that users have a chance - even with typos.

Turning xlog into JSON

by Hans-Jürgen Schönig | 08.2015
JSON is used for configuration, data transfer, and a lot more. Luckily PostgreSQL is pretty good at it. Turn xlog into JSON.
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