cloud-fan commented on code in PR #41811:
URL: https://github.com/apache/spark/pull/41811#discussion_r1251127479
##########
sql/api/src/main/scala/org/apache/spark/sql/catalyst/util/StringUtils.scala:
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@@ -63,3 +66,39 @@ class StringConcat(val maxLength: Int =
ByteArrayUtils.MAX_ROUNDED_ARRAY_LENGTH)
result.toString
}
}
+
+object SparkStringUtils extends Logging {
+ /** Whether we have warned about plan string truncation yet. */
+ private val truncationWarningPrinted = new AtomicBoolean(false)
+
+ /**
+ * Format a sequence with semantics similar to calling .mkString(). Any
elements beyond
+ * maxNumToStringFields will be dropped and replaced by a "... N more
fields" placeholder.
+ *
+ * @return the trimmed and formatted string.
+ */
+ def truncatedString[T](
+ seq: Seq[T],
Review Comment:
nit: 4 spaces indentation
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