ReQL command: getAll

Command syntax

table.getAll([key, key2...]) → selection

Description

Get all documents where the given value matches the value of the requested index.

Example: Secondary index keys are not guaranteed to be unique so we cannot query via get when using a secondary index.

r.table("marvel").getAll("man_of_steel").optArg("index", "code_name").run(conn);

Example: Without an index argument, we default to the primary index. While get will either return the document or null when no document with such a primary key value exists, this will return either a one or zero length stream.

r.table("dc").getAll("superman").run(conn);

Example: You can get multiple documents in a single call to get_all.

r.table("dc").getAll("superman", "ant man").run(conn);

Note: getAll does not perform any de-duplication. If you pass the same key more than once, the same document will be returned multiple times.

Example: You can use args with getAll to retrieve multiple documents whose keys are in a list. This uses getAll to get a list of female superheroes, coerces that to an array, and then gets a list of villains who have those superheroes as enemies.

r.do(
    r.table("heroes").getAll("f").optArg("index", "gender")
        .g("id").coerceTo("array"),
    heroines -> r.table("villains").getAll(r.args(heroines))
).run(conn);

Calling getAll with zero arguments—which could happen in this example if the heroines list had no elements—will return nothing, i.e., a zero length stream.

Secondary indexes can be used in extremely powerful ways with getAll and other commands; read the full article on secondary indexes for examples using boolean operations, contains and more.

© RethinkDB contributors
Licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License.
https://rethinkdb.com/api/java/get_all/