b9dc5acf2c
* Remove remaining 1.x bwc logic.
* Stop storing stored fields and indexed terms. The _parent field's only purpose is to support joins between parent and child type and only storing doc values is sufficient.
* In the mapping the parent field mapper is now known under '{parent}#{child}' key, because this is the field the parent/child join uses too.
* Added new sub fetch phase to lookup that _parent field from doc values field if that is required (before this was fetched from stored _parent field)
* Removed the ability to query directly on `_parent` in the query dsl. Instead the `{parent}#{child}` field should be used. Under the hood a doc values query is used instead of a term query, because only doc values fields are stored now.
* Added a new `parent_id` query to easily query child documents with a specific parent id without having to know what join field to use
* Also in aggregations `_parent` field can't be used any more and `{parent}#{child}` field name should be used instead to aggregate directly on the _parent join field.
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| .. | ||
| migrate_2_0 | ||
| index.asciidoc | ||
| migrate_1_0.asciidoc | ||
| migrate_1_4.asciidoc | ||
| migrate_1_6.asciidoc | ||
| migrate_2_0.asciidoc | ||
| migrate_2_1.asciidoc | ||
| migrate_2_2.asciidoc | ||
| migrate_2_3.asciidoc | ||
| migrate_3_0.asciidoc | ||