Purpose
This routine allows users to read DATASET data that is stored as a LOB using the LOB FNC routines.
Syntax
void FNC_GetDatasetInputLob( DATASET_HANDLE datasetHandle, LOB_LOCATOR* instance )
- DATASET_HANDLE datasetHandle
- A handle to a DATASET data type instance that is defined to be an input parameter to an external routine.
- LOB_LOCATOR* instance
- A pointer to a LOB_LOCATOR which will be used to read the LOB data of a DATASET instance.
Usage Notes
Use FNC_GetDatasetInputLob only when the DATASET data is stored as a LOB. If FNC_GetDatasetInfo returns dataLob > 0, you can use FNC_GetDatasetInputLob; otherwise, you should use FNC_GetInternalValue instead.
For Avro instances, this routine returns a LOB_LOCATOR which allows a user to access a buffer that contains the UTF-8 encoded schema, null-terminated, followed by the binary-encoded Avro value. This is equivalent to the transform format.
If the DATASET data is a CSV value, the value does not include any optional schema.