1 of 1

JSONPATHSTRING

This section contains reference documentation for the JSONPATHSTRING function.

Extracts the String value from jsonField based on 'jsonPath', use optional defaultValuefor null or parsing error. This function can only be used in an ingestion transformation function.

Signature

JSONPATHSTRING(jsonField, 'jsonPath', [defaultValue])

Arguments

Description

'jsonPath'` is a literal. Pinot uses single quotes to distinguish them from identifiers.

Usage Examples

The usage examples are based on extracting fields from the following JSON document:

Expression

Value

This function can be used in the to extract the age property into the age column, as described below:

JSONPATHSTRING

This section contains reference documentation for the JSONPATHSTRING function.

Extracts the String value from jsonField based on 'jsonPath', use optional defaultValuefor null or parsing error. This function can only be used in an ingestion transformation function.

Signature

JSONPATHSTRING(jsonField, 'jsonPath', [defaultValue])

Arguments

Description

'jsonPath'` is a literal. Pinot uses single quotes to distinguish them from identifiers.

Usage Examples

The usage examples are based on extracting fields from the following JSON document:

Expression

Value

This function can be used in the to extract the age property into the age column, as described below:

{
  "data": {
    "name": "Pete",
    "age": 24,
    "subjects": [
      {
        "name": "maths",
        "homework_grades": [80, 85, 90, 95, 100],
        "grade": "A",
        "score": 90
      },
      {
        "name": "english",
        "homework_grades": [60, 65, 70, 85, 90],
        "grade": "B",
        "score": 70
      }
    ]
  }
}

{
  "data": {
    "name": "Pete",
    "age": 24,
    "subjects": [
      {
        "name": "maths",
        "homework_grades": [80, 85, 90, 95, 100],
        "grade": "A",
        "score": 90
      },
      {
        "name": "english",
        "homework_grades": [60, 65, 70, 85, 90],
        "grade": "B",
        "score": 70
      }
    ]
  }
}

JSONPATHSTRING

hashtagSignature

hashtagUsage Examples

JSONPATHSTRING

hashtagSignature

hashtagUsage Examples

Signature

Usage Examples

Signature

Usage Examples