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

# default_filters

> Applies a filter to all rows in a topic.

Applies a filter to all rows in a topic. Filters created using this parameter are visible in workbooks and can be removed by users. For required filter conditions, use [`always_where_sql`](/modeling/topics/parameters/always-where-sql).

<Note>
  When a new `default_filter` is defined, it will only apply to new queries. The filter will not be added to existing queries.
</Note>

Refer to the [Filters documentation](/modeling/filters) for filter examples and syntax details.

## Syntax

```yaml theme={null}
default_filters:
  <view_name>.<field_name>:
    <filter_operator>: <value>
```

## Properties

<ParamField path="default_filters" type="object">
  A map of field names to filter conditions. Each key is a field in the format `view_name.field_name`, and the value is an object containing filter operators and values. Refer to the [Filters documentation](/modeling/filters) for available operators and syntax.
</ParamField>

## Examples

```yaml theme={null}
default_filters:
  users.state:
    is: California
```