modify the _mapping in Elastic Search shows strange behavior

Question

I have modified a field type of CompanyName in PoCo in c# (NEST) from string to int (just for testing). first thing is that it is not reflecting in mapping of type. it is still showing string there

    "properties": {
       "AddressNumber": {
          "type": "string"
       },
       "City": {
          "type": "string"
       },
       "CompanyName": {
          "type": "string"
       },
       "ContactName": {
          "type": "string"
       },

But it does allow me to save the integer value of CompanyName. In marvel also, the data is showing like int.

Previous Document in ES

             {  "CompanyName": "1231",
               "ContactName": "sdfsdf",
               "City": "Schenectady"
             }

Last saved document after changing the field type to int

                 { "CompanyName": 1231,
                   "ContactName": "shivang",
                   "City": "Leeds"
                 }

It is searching fine with string and int values,If we try to save some string in it, it is showing CompanyName as 0 ( which is fine ). But why it is not showing the mapping correctly?

NOTE : I did not recreated the index. It is the existing index

Did you recreated index? More info [here](https://www.elastic.co/blog/changing-mapping-with-zero-downtime). — Rob, May 13 '15 at 08:13
@Rob: No, I did not recreated the index. It is the existing index — Shivang MIttal, May 13 '15 at 08:50
You should do this after mapping changes, more details why and what for in above link. — Rob, May 13 '15 at 09:31
@Rob: Yeah, i got that. I was just wondering about the behavior of elastic search — Shivang MIttal, May 13 '15 at 10:54

score 1 · Answer 1 · edited May 23 '17 at 11:58

1

Changing Mapping With Zero Downtime will explain this thoroughly, as pointed out by @Rob here and in this SO question.

I highly recommend reading about default mapping, dynamic mapping, and especially dynamic templates. I find this really helps me keep my code clean from attributes or mapping code and let my poco's be poco's!

edited May 23 '17 at 11:58

Community

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answered May 14 '15 at 10:50

Jony Adamit

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modify the _mapping in Elastic Search shows strange behavior

1 Answers1