elasticsearchHow do I use the boolean type in Elasticsearch?
The boolean type in Elasticsearch is used to store boolean values, which are either true or false. To use the boolean type, you must first define a mapping for a field that specifies the boolean type. For example, to define a mapping for a field called "is_active":
PUT my_index
{
"mappings": {
"properties": {
"is_active": {
"type": "boolean"
}
}
}
}
Once the mapping is defined, you can add documents to the index with boolean values. For example, to add a document with the "is_active" field set to true:
PUT my_index/_doc/1
{
"is_active": true
}
You can then query the index using boolean queries. For example, to query for all documents with the "is_active" field set to true:
GET my_index/_search
{
"query": {
"bool": {
"filter": {
"term": {
"is_active": true
}
}
}
}
}
This will return all documents with the "is_active" field set to true.
- Mapping Definition: This defines the mapping for the field, specifying the boolean type.
- Adding Documents: This adds a document with the "is_active" field set to true.
- Querying the Index: This queries the index using boolean queries to return all documents with the "is_active" field set to true.
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