射影関数
JSON_AVG(json, jsonpath)
Computes the average value of a JSON array within a JSON object.
- json: The column containing JSON data.
- jsonpath: The path to the json array.
JSON_COUNT(json, jsonpath)
Returns the number of elements in a JSON array within a JSON object.
- json: The column containing JSON data.
- jsonpath: The path to the json array.
JSON_MAX(json, jsonpath)
Gets the maximum value in a JSON array within a JSON object.
- json: The column containing JSON data.
- jsonpath: The path to the json array.
JSON_MIN(json, jsonpath)
Gets the minimum value in a JSON array within a JSON object.
- json: The column containing JSON data.
- jsonpath: The path to the json array.
JSON_SUM(json, jsonpath)
Computes the sum of the elements in a JSON within a JSON object.
- json: The column containing JSON data.
- jsonpath: The path to the json array.