OpenSearch/docs/reference/migration
Adrien Grand a91b3fcbb9 Move the `murmur3` field to a plugin and fix defaults.
This move the `murmur3` field to the `mapper-murmur3` plugin and fixes its
defaults so that values will not be indexed by default, as the only purpose
of this field is to speed up `cardinality` aggregations on high-cardinality
string fields, which only requires doc values.

I also removed the `rehash` option from the `cardinality` aggregation as it
doesn't bring much value (rehashing is cheap) and allowed to remove the
coupling between the `cardinality` aggregation and the `murmur3` field.

Close #12874
2015-08-18 11:41:52 +02:00
..
migrate_2_0 Move the `murmur3` field to a plugin and fix defaults. 2015-08-18 11:41:52 +02:00
index.asciidoc More Like This: removal of the MLT API 2015-05-06 18:11:11 +02:00
migrate_1_0.asciidoc Remove delete-by-query core docs 2015-08-01 05:14:46 -04:00
migrate_1_4.asciidoc Query DSL: Remove filter parsers. 2015-05-07 20:14:34 +02:00
migrate_1_6.asciidoc parent/child: Deprecated the `top_children` in favour of the `has_child` query. 2015-05-07 09:27:54 +02:00
migrate_2_0.asciidoc Docs: Rewrote the migrating-to-2.0 section 2015-08-14 20:26:18 +02:00