# Simplifying Time-Based Queries with Range Columns

DevFeed: [Simplifying Time-Based Queries with Range Columns](<https://devfeed.tech/articles/simplifying-time-based-queries-with-range-columns-530.md>)

Original publisher: [Read original article](<https://supabase.com/blog/range-columns>)

Author: Tyler Shukert

Published: 2024-07-11T07:00:00Z

Content type: tutorial

Language: en

Sources: [Supabase Blog](<https://devfeed.tech/sources/supabase-blog.md>)

Topics: [SQL](<https://devfeed.tech/topics/sql.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Query (disambiguation)](<https://devfeed.tech/topics/query.md>), [Structured-data](<https://devfeed.tech/topics/structured-data.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [data](<https://devfeed.tech/tags/data.md>), [developers](<https://devfeed.tech/tags/developers.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [learn](<https://devfeed.tech/tags/learn.md>), [sql](<https://devfeed.tech/tags/sql.md>), [time](<https://devfeed.tech/tags/time.md>)

## AI overview

This tutorial explains how Postgres range columns simplify time-based queries for reservations and events. It covers representing periods as ranges, querying overlapping intervals, and adding exclusion constraints to prevent overlapping reservations.

## Source excerpt

Learn how to use range columns in Postgres to simplify time-based queries and add constraints to prevent overlaps.