fuwhu commented on issue #26356: [SPARK-29707][SQL] Add configuration 
'spark.sql.maxMetadataValueStringLength'
URL: https://github.com/apache/spark/pull/26356#issuecomment-552267538
 
 
   > Is this just a cosmetic issue? I'd hesitate to add a whole new config for 
this.
   @srowen I agree with you on this, @HyukjinKwon but i think 
spark.sql.debug.maxToStringFields is not suitable for this, it is limit for 
number of fields, but here what we need is a length limit for converted string 
of single metadata/field value.
   And i can not find any conf whose default value is 100 and has similar 
meaning.
   Any idea?
   

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