This section contains reference documentation for the JSONPATHLONG function.
Extracts the Long value from jsonField based on 'jsonPath', use optional defaultValuefor null or parsing error. This function can only be used in an ingestion transformation function.
JSONPATHLONG(jsonField, 'jsonPath', [defaultValue])
'jsonPath'` is a literal. Pinot uses single quotes to distinguish them from identifiers.
You can use the to test JSON expressions before you import any data.
The usage examples are based on extracting fields from the following JSON document:
This function can be used in the to extract the age property into the age column, as described below:
jsonField
An Identifier/Expression contains JSON documents.
'jsonPath'
Follows JsonPath Syntax to read values from JSON documents.
JSONPATHLONG(data, '$.age')
24
{
"data": {
"name": "Pete",
"age": 24,
"subjects": [
{
"name": "maths",
"homework_grades": [80, 85, 90, 95, 100],
"grade": "A",
"score": 90
},
{
"name": "english",
"homework_grades": [60, 65, 70, 85, 90],
"grade": "B",
"score": 70
}
]
}
}{
"tableConfig":{
"ingestionConfig":{
"transformConfigs":[
{
"columnName":"age",
"transformFunction":"JSONPATHLONG(data, '$.age')"
}
]
}
}
}