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[BAHIR-256] Fix ClassCastException in sql-streaming-mqtt#100
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mcpeanutbutter wants to merge 1 commit intoapache:masterfrom
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[BAHIR-256] Fix ClassCastException in sql-streaming-mqtt#100mcpeanutbutter wants to merge 1 commit intoapache:masterfrom
mcpeanutbutter wants to merge 1 commit intoapache:masterfrom
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In org/apache/bahir/sql/streaming/mqtt/MQTTStreamSource.scala, added conversions to the 'topic' and 'timestamp' fields in order to make them compatible with Spark SQL.
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As described in https://issues.apache.org/jira/projects/BAHIR/issues/BAHIR-256, currently the usage of the topic or timestamp columns in sql-streaming-mqtt throws ClassCastExceptions after batch 0.
From my testing, this issue can be mitigated by a simple type conversion (analogous to https://github.com/Azure/spark-cdm/pull/4/files, which apparently resolved a very similar exception).
I added the necessary conversions to org/apache/bahir/sql/streaming/mqtt/MQTTStreamSource.scala.