> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sourcemedium.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Boolean Columns

> Naming rules for boolean fields (`is_...`) so true/false columns read like a question.

## Overview

Boolean columns are named to clearly reflect a true or false condition, and are always phrased in the form of a question.
This convention helps in understanding the purpose of the column at a glance, indicating a specific dimension of an entity
that can either be true or false.

## Boolean column name formula

`is_{{ entity }}_{{ dimension }}`

## Examples

* `is_price_tax_inclusive`, where `price` is the `entity` and `tax_inclusive` is the `dimension`
  indicating whether the price includes tax
* `is_product_gift_card`, where `product` is the `entity` and `gift_card` is the `dimension`
  indicating whether the product is a gift card