Elasticsearch Mapping

PUT bankaccountdetails
{
　　　"mappings": {
　　　　　　"properties": {
　　　　　　　　　"name": {
    "type": "text"},
    "date": {
    "type": "date"},
　　　　　　　　　"balance": {
    "type": "double"},
    "liability": {
    "type": "double"}
　　　　　　}
　　　}
　}

When we run the above code, we get the following response-

{
　　　"acknowledged": true,
　　　"shards_acknowledged": true,
　　　"index": "bankaccountdetails"
}

Field Data Types

Elasticsearch supports a variety of different data types for fields in documents. This section discusses the data types used to store fields in Elasticsearch in detail.

Core Data Types

These are basic data types, such as text, keywords, dates, long integers, double precision, boolean, or IP, which are supported by almost all systems.

Complex Data Types

These data types are combinations of core data types. These include arrays, JSON objects, and nested data types. An example of nested data types is shown as follows &minus

POST　/tabletennis/_doc/1
{
　　　"group": "players",

　　　
　　　　　　{
　　　　　　　　　
　　　　　　}
　　　　　　{
　　　　　　　　　"first": "kevin", \
　　　　　　}
　　　]
}

When we run the above code, we get the following response-

{
　　　"_index": "tabletennis",

　　　"_type": "_doc",
　　　"_id": "1",
　　　_version":　2,
　　　"result": "updated",
　　　"_shards": {
　　　　　　"total":　2,
　　　　　　"successful":　1,
　　　　　　"failed": 0
　　　}
　　　"_seq_no":　1,
　　　"_primary_term":　1
}

Another example code is shown as follows-

POST　/accountdetails/_doc/1
{
　　　"from_acc":7056443341",
    "to_acc":7032460534",
　　　"date": "11/1/2016",
    "amount":10000
}

When we run the above code, we get the following response-

{
    "_index": "accountdetails",

　　　"_type": "_doc",
　　　"_id": "1",
　　　"_version":　1,
　　　"result": "created",
　　　"_shards": {
　　　　　　"total":　2,
　　　　　　"successful":　1,
　　　　　　"failed": 0
　　　}
　　　"_seq_no":　1,
　　　"_primary_term":　1
}

We can use the following command to check the above documents-

GET　/accountdetails/_mappings?include_type_name=false

Delete Mapping Type

In Elasticsearch 7indexes created in .0.0 or higher versions no longer accept the _default_ mapping. Indexes created6.x will continue to work in Elasticsearch 6The .x still works as before. In7The deprecated types in the .0 API.