---
title: "ColumnInfo"
description: "The `ColumnInfo` entity."
section: "Reference"
group: "Types"
order: 47
---

## Definition

```ts
interface ColumnInfo {
  name: string;
  type: string;
  notNull: boolean;
  pk: boolean;
  defaultValue: string | null;
}
```

## Fields

| Field          | Type             | Notes                                                             |
| -------------- | ---------------- | ----------------------------------------------------------------- |
| `name`         | `string`         | `required` — Column name.                                         |
| `type`         | `string`         | `required` — Declared SQL type of the column.                     |
| `notNull`      | `boolean`        | `required` — True when the column is NOT NULL.                    |
| `pk`           | `boolean`        | `required` — True when the column is part of the primary key.     |
| `defaultValue` | `string \| null` | `required` — Default value expression as stored, or null if none. |