Reindex changing types

Elastic Stack Elasticsearch
1

Hello!

It's possible to reindex, changing datatype of a field? Or it's not possible and I have to delete bad fields and reindex without them?

Thanks so much.

2

You can use ingest node feature while reindexing but what is exactly the problem you have?

3

it's simple. I have an index like this:

"field": {
    "properties": {
        "subfield1": {
            "type": "float"
        },
        "subfield2": {
            "type": "float"
        },
        "subfield3": {
            "type": "text"
        }
    }
}

and I want to change a subfield. More or less like that:

"field": {
    "properties": {
        "subfield1": {
            "type": "float"
        },
        "subfield2": {
            "type": "float"
        },
        "subfield3": {
            "type": "float"
        }
    }
}

Right now I have some data with the original mapping, but it doesn't matter if some subfield3 data must be deleted.

Any idea?

4

Please format your code using </> icon as explained in this guide. It will make your post more readable.

Or use markdown style like:

```
CODE
```

I edited your post.

  1. Define an ingest pipeline which uses https://www.elastic.co/guide/en/elasticsearch/reference/master/convert-processor.html
  2. Use this ingest pipeline in the reindex operation.
5

Thanks so much. You're right, much more readable.

I'm going to try your solution.