[discrete]
[[esql-where]]
=== `WHERE`

**Syntax**

[source,esql]
----
WHERE expression
----

*Parameters*

`expression`::
A boolean expression.

*Description*

The `WHERE` processing command produces a table that contains all the rows from
the input table for which the provided condition evaluates to `true`.

`WHERE` supports various <<esql-functions,functions>> and
<<esql-operators,operators>>.

*Examples*

[source,esql]
----
include::{esql-specs}/docs.csv-spec[tag=where]
----

Which, if `still_hired` is a boolean field, can be simplified to:

[source,esql]
----
include::{esql-specs}/docs.csv-spec[tag=whereBoolean]
----

Using a function:

[source,esql]
----
include::{esql-specs}/docs.csv-spec[tag=whereFunction]
----