[[esql-index-options]]
=== {esql} index options

++++
<titleabbrev>Index options</titleabbrev>
++++

The `OPTIONS` directive of the <<esql-from,FROM>> command allows configuring
the way {esql} accesses the data to be queried. The argument passed to this
directive is a comma-separated list of option name-value pairs, with the option
name and the corresponding value double-quoted.

[source,esql]
----
FROM index_pattern [OPTIONS "option1"="value1"[,...[,"optionN"="valueN"]]]
----

These options can only be provided as part of a <<esql-from,FROM>> command,
and they apply to all the indices provided or matched by an index pattern.

The option names and their values are the same as used by the
<<search-search-api-query-params,Search API>>, however note that the default
values may differ.

The currently supported options are:

include::{es-ref-dir}/rest-api/common-parms.asciidoc[tag=allow-no-indices]
+
Defaults to `true`.

// unlike "allow-no-indices", "index-ignore-unavailable" includes a default
// in common-parms.asciidoc, which is different from QL's -- we need to
// provide the full text here.
`ignore_unavailable`::
(Optional, Boolean) If `false`, the request returns an error if it targets a
missing or closed index.
+
Defaults to `true`.

include::{es-ref-dir}/search/search.asciidoc[tag=search-preference]

*Examples*

[source.merge.styled,esql]
----
include::{esql-specs}/from.csv-spec[tag=convertFromDatetimeWithOptions]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/from.csv-spec[tag=convertFromDatetimeWithOptions-result]
|===