elasticsearch sql translate dsl

Elasticsearch SQL is a query language that allows users to query Elasticsearch using SQL syntax. The Translate API allows users to convert SQL queries into Elasticsearch DSL queries.

To translate an Elasticsearch SQL query into DSL, follow these steps:

Install the Translate API plugin by running the following command:

bin/elasticsearch-plugin install ingest-attachment

Create an index mapping that matches the columns in your SQL query. For example:

PUT my_index
{
  "mappings": {
    "properties": {
      "id": {
        "type": "integer"
      },
      "name": {
        "type": "text"
      },
      "age": {
        "type": "integer"
      }
    }
  }
}

Use the Translate API to convert the SQL query into DSL:

POST _sql/translate
{
    "query": "SELECT * FROM my_index WHERE age > 30",
    "fetch_size": 10,
    "filter": {
        "range": {
            "age": {
                "gt": 30
            }
        }
    }
}

The API returns a JSON object containing the translated query. The fetch_size parameter determines the number of results to fetch at once, and the filter parameter contains the Elasticsearch DSL query.

Use the Elasticsearch DSL query to search the index:

GET my_index/_search
{
    "query": {
        "range": {
            "age": {
                "gt": 30
            }
        }
    }
}