Github user MaxGekk commented on a diff in the pull request:
https://github.com/apache/spark/pull/22429#discussion_r224418619
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/package.scala ---
@@ -167,6 +172,58 @@ package object util {
builder.toString()
}
+ /**
+ * The performance overhead of creating and logging strings for wide
schemas can be large. To
+ * limit the impact, we bound the number of fields to include by
default. This can be overridden
+ * by setting the 'spark.debug.maxToStringFields' conf in SparkEnv or by
settings the SQL config
+ * `spark.sql.debug.maxToStringFields`.
+ */
+ private[spark] def maxNumToStringFields: Int = {
+ val legacyLimit = if (SparkEnv.get != null) {
--- End diff --
I removed old core config and leaved only SQL config
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