How to detect time-overlapping-records in Postgres + Rails

```ruby Model .where("TSRANGE(?, ?, '()') && TSRANGE(starts_at, ends_at, '()')", starts_at, ends_at) .where.not(id: record_id) .exists? ``` Bot...

How to add polish dictionary to postgres

PostgreSQL dictionary consists of 3 files: * lang.dict * lang.affix * lang.stop # Generating dictionary files 1. Download the most recent polish Isp...