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
..
2015-02-28 17:19:55 +01:00
2015-05-05 10:38:05 +02:00

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