Searching and Querying Data 🧩
Elasticsearch provides powerful query DSL (Domain Specific Language) to perform precise searches. Example: Searching for users named 'Jane':
GET /my_index/_search
{
"query": {
"match": { "name": "Jane" }
}
}
Common queries include:
- Match: Full-text search.
- Term: Exact value matching.
- Range: Numeric or date ranges.
- Bool: Combining multiple query conditions.
Sample query with filters:
GET /my_index/_search
{
"query": {
"bool": {
"must": [
{ "match": { "name": "Jane" } }
],
"filter": [
{ "range": { "age": { "gte": 25, "lte": 35 } } }
]
}
}
}
Effective querying is central to leveraging Elasticsearch’s full potential for real-time data insights.