Deprecated, use the "ToTuple" operator instead.
This operator can be used to translate a an object (e.g. key-value/json object) to a tuple. In KeyValue case Names are JSON-Path Exceptions. If names contains special chars like ".", "*", etc. the chars will be replaced by "_". To define own names you ['Path','Name','Type'] in the schema.
Parameter
schema:
The list of requested attributes (keys) and their data type.
type:
The type of the output tuplekeepInput:
If set to true, the key-value is stored in the additional content container of the output tuple.dateFormat:
Can be used to format the timestamp. To create a timestamp an attribute of data type STARTTIMESTAMP or ENDTIMESTAMP has to be added to schema.
Example 1
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out = KEYVALUETOTUPLETOTUPLE({ schema=[['Name', 'Double']], type='Measurement', keepinput='false' }, in ) |
Example 2
Assume that a data source in
sends key-value-pairs about persons in the following (JSON-)format:
...
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out = KEYVALUETOTUPLETOTUPLE({ schema=[['person.name', 'String'], ['timestamp', 'STARTTIMESTAMP']], type='Measurement', keepinput='false' }, in ) |