Changing elasticsearch mapping

Question

Take the simplest case of indexing the following document in elasticsearch

{ "name": "Mark", "age": 28 }

With automatic mapping the mapping for this index would now look like

"properties" : { "doc" : { "properties" : { "age" : { "type" : "long"}, "name" : { "type" : "string" } } },

But say I then wanted to allow the case where this document should be indexed

{ "name": "Bill", "age": "seven" }

If I try this the mapping does not update and elasticsearch throws an error since there is a conflict with the type of the age property. Is there any way to do this so both docs could be automatically indexed and consequently queryable?

Please follow this link - stackoverflow.com/questions/35999012/… — Chitra
– Chitra, Commented Nov 24, 2020 at 2:40

MeiSign · Accepted Answer · 2014-01-29 12:02:09Z

2

Mappings are defined per type so what you could do is having two types in your index:

numeric
alphabetical

And split the documents according to the value in the age field. If you run a query you can query both types.

answered Jan 29, 2014 at 12:02

MeiSign

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2 Comments

erbdex Over a year ago

@MeiSign- How do i go about telling elasticsearch to Consider everything but dates as strings?

MeiSign Over a year ago

I never did that actually but I guess if you create the Index you could set the numeric detection to false for example:|elasticsearch.org/guide/en/elasticsearch/reference/current/…

score 1 · Accepted Answer · 2014-01-31 05:24:36Z

you can add new fields and update a mapping. But you cannot update a mapping.To do that you need to drop the index and create a new mapping and index the data..!

For more info refer this link reference

krishna kumar · Accepted Answer · 2016-02-23 05:31:38Z

You can't change existing mapping.You can only add new field in it. Or you have to delete old mapping & create a new mapping for that particular index.

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