Alex Ksikes c347dfe91c Validate API: support for verbose explanation of succesfully validated queries
This commit adds a `rewrite` parameter to the validate API in order to shown
how the given query is re-written into primitive queries. For example, an MLT
query is re-written into a disjunction of the selected terms. Other use cases
include `fuzzy`, `common_terms`, or `match` query especially with a
`cutoff_frequency` parameter. Note that the explanation is only given for a
single randomly chosen shard only, so the output may vary from one shard to
another.

Relates #1412
Closes #10147
2015-04-13 19:17:58 +02:00
..
2014-08-21 10:34:39 +02:00