Advanced Elasticsearch 7.0

Dynamic templates

When you create an index, Elasticsearch lets you create templates for your mapping rules to augment the newly added fields with the supported mapping types. A mapping rule contains two parts: the matcher and the corresponding mapping datatype. The matcher can be performed on one of the following:

• The data type of the field: Using match_mapping_type for the datatype
• The name of the field: Using match pattern and/or unmatch pattern for the field name
• The full dotted path of the field: Using path_match and path_unmatch for the dotted path

Basically, the syntax of the dynamic templates is as follows:

"mappings":{    "dynamic_templates" :[        {            "template_name_1": {                ...mapping rules...,                "mapping": {...}            }        },        { "template_name_2":{...}, ...