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Problem using from_avro function

MaximeGendre
New Contributor II

Hello everyone,
I need your help with a topic that has been preoccupying me for a few days.

"from_avro" function gives me a strange result when I pass it the json schema of a Kafka topic.

====================================================================

lastVersion = schema_registry_client.get_latest_version(topic_name +"-value")
print(f"last schema structure is {lastVersion.schema.schema_str}")
 
MaximeGendre_2-1717533967736.png

The schema looks pretty simple.

====================================================================

schema_json = """{
  "namespace": "aaa.kafkaday.planedemo",
  "type": "record",
  "name": "PlaneDemo",
  "fields": [
    {"name": "FlightNumber", "type": "string"},
    {"name": "PositionTime", "type": "long"},
    {"name": "Lat", "type": "double"},
    {"name": "Long", "type": "double"},
    {"name": "Alt", "type": "double"}
  ]
}"""

display(df.select(
  from_avro( col("value"),
            schema_json, from_avro_options)
))

MaximeGendre_0-1717533089570.png

Using from_avro on the same dataset with SchemaRegistry information it works well.

====================================================================

 
display(df.select(
  from_avro(data = F.col("value"),
            subject = topic_name +"-value",
            schemaRegistryAddress = schema_registry_address,
            options = schema_registry_options).alias("value")
    ).selectExpr("*"))

MaximeGendre_1-1717533556219.png

A suggestion on where I'm going wrong ?

Thank you.

 

 

 

 

0 REPLIES 0
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