---
id: predicates
title: Predicates
---

## Field Predicates

- **Bool**:
  - =, !=
- **Numeric**:
  - =, !=, >, <, >=, <=,
  - IN, NOT IN
- **Time**:
  - =, !=, >, <, >=, <=
  - IN, NOT IN
- **String**:
  - =, !=, >, <, >=, <=
  - IN, NOT IN
  - Contains, HasPrefix, HasSuffix
  - ContainsFold, EqualFold (**SQL** specific)
- **Optional** fields:
  - IsNil, NotNil

## Edge Predicates

- **HasEdge**. For example, for edge named `owner` of type `Pet`, use:

  ```go
   client.Pet.
		Query().
		Where(user.HasOwner()).
		All(ctx)
  ```

- **HasEdgeWith**. Add list of predicates for edge predicate.

  ```go
   client.Pet.
		Query().
		Where(user.HasOwnerWith(user.Name("a8m"))).
		All(ctx)
  ```


## Negation (NOT)

```go
client.Pet.
	Query().
	Where(user.Not(user.NameHasPrefix("Ari"))).
	All(ctx)
```

## Disjunction (OR)

```go
client.Pet.
	Query().
	Where(
		user.Or(
			user.HasOwner(),
			user.Not(user.HasFriends()),
		)
	).
	All(ctx)
```

## Conjunction (AND)

```go
client.Pet.
	Query().
	Where(
		user.And(
			user.HasOwner(),
			user.Not(user.HasFriends()),
		)
	).
	All(ctx)
```