71 lines
1.5 KiB
Plaintext
71 lines
1.5 KiB
Plaintext
[[query-dsl-parent-id-query]]
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=== Parent Id Query
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The `parent_id` query can be used to find child documents which belong to a particular parent.
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Given the following mapping definition:
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[source,js]
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--------------------------------------------
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PUT my_index
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{
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"mappings": {
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"doc": {
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"properties": {
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"my_join_field": {
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"type": "join",
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"relations": {
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"my_parent": "my_child"
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}
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}
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}
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}
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}
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}
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PUT my_index/doc/1?refresh
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{
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"text": "This is a parent document",
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"my_join_field": "my_parent"
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}
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PUT my_index/doc/2?routing=1&refresh
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{
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"text": "This is a child document",
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"my_join_field": {
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"name": "my_child",
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"parent": "1"
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}
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}
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--------------------------------------------
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// CONSOLE
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// TESTSETUP
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[source,js]
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--------------------------------------------------
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GET /my_index/_search
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{
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"query": {
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"parent_id": {
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"type": "my_child",
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"id": "1"
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}
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}
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}
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--------------------------------------------------
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// CONSOLE
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==== Parameters
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This query has two required parameters:
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[horizontal]
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`type`:: The **child** type name, as specified in the <<parent-join,`join` field>>.
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`id`:: The ID of the parent document.
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`ignore_unmapped`:: When set to `true` this will ignore an unmapped `type` and will not match any
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documents for this query. This can be useful when querying multiple indexes
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which might have different mappings. When set to `false` (the default value)
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the query will throw an exception if the `type` is not mapped.
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