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You can achieve the same as the dataset schema tab "CHECK NOW" button with the following code sample:
import dataiku client = dataiku.api_client() p = client.get_project('PROJECT_KEY') future = p.get_dataset('DATASET_NAME').test_and_detect() future.wait_for_result() try: warningLevel = future.get_result()['format']['schemaDetection']['warningLevel'] print('Warning level:' + warningLevel) except KeyError: print('No warning')
In the schemaDetection dict you have many informations like the reasons of the warning in "textReasons" and the type of the warning in "type".
I hope it helps,
Thanks for the response.
Will this work with custom defined SQLServer datasets?
I get this exception on test_and_detect():
DataikuException: java.lang.ClassCastException: Cannot cast com.dataiku.dip.datasets.sql.ManagedSQLTableDatasetTestHandler to com.dataiku.dip.datasets.sql.ExternalSQLDatasetTestHandler
Actually I raised a support ticket on a similar question for which the response was that this was not currently possible with the API.
I would need something that also emulated the "Reload schema from table" button if a warning was found.
Do you get the same "Java.lang.ClassCastException" exception when using the "Check Now" button ?
You can achieve the same as the "Reload schema from table" button by extracting the detected schema from the result of "test_and_detect()" method and set it for the dataset with the DSSDataset.set_schema method
detected_schema = future.get_result()['format']['schemaDetection'["detectedSchema"]
Hope it helps,