Tathagata Das created SPARK-14741:
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Summary: Streaming from partitioned directory structure captures
unintended partition columns
Key: SPARK-14741
URL: https://issues.apache.org/jira/browse/SPARK-14741
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Tathagata Das
Assignee: Tathagata Das
Consider the following directory structure
dir/col=X/some-files
If we create a text format streaming dataframe on {dir/col=X/}, then it should
not consider as partitioning in columns. Even though the streaming dataframe
does not do so, the generated batch dataframes pick up col as a partitioning
columns, causing mismatch streaming source schema and generated df schema. This
leads to runtime failure:
18:55:11.262 ERROR org.apache.spark.sql.execution.streaming.StreamExecution:
Query query-0 terminated with error
java.lang.AssertionError: assertion failed: Invalid batch: c#2 != c#7,type#8
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