[ https://issues.apache.org/jira/browse/SPARK-41152 ]
leo.zhi deleted comment on SPARK-41152:
---------------------------------
was (Author: leo.zhi):
test
> Print out schema as tree string format for state store schema checker
> ---------------------------------------------------------------------
>
> Key: SPARK-41152
> URL: https://issues.apache.org/jira/browse/SPARK-41152
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 3.4.0
> Reporter: Jungtaek Lim
> Priority: Major
>
> When the state store schema checker detects the incompatibility and produces
> the error, the error log is not human friendly for schema comparison.
> e.g.
> {code:java}
> valueSchema:
> StructType(StructField(field1,StringType,true),StructField(field2,StringType,true),StructField(field3,StringType,true),StructField(_rescued_data,StringType,true),StructField(_metadata,StructType(StructField(file_path,StringType,true),StructField(file_name,StringType,true),StructField(file_size,LongType,true),StructField(file_modification_time,TimestampType,true)),false))
> {code}
> It should be much easier to compare if we print the schema out for tree
> string format. It will be multi-line which regress the UX, but the entire
> error message is already multi-line so should not a big deal.
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