Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/14568#discussion_r74434465
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/MonotonicallyIncreasingID.scala
---
@@ -40,13 +42,23 @@ import org.apache.spark.sql.types.{DataType, LongType}
represent the record number within each partition. The assumption is
that the data frame has
less than 1 billion partitions, and each partition has less than 8
billion records.""",
extended = "> SELECT _FUNC_();\n 0")
-case class MonotonicallyIncreasingID() extends LeafExpression with
Nondeterministic {
+case class MonotonicallyIncreasingID(offset: Long = 0) extends
LeafExpression
+ with Nondeterministic with Logging {
+
+ def this() = {
+ this(offset = 0)
+ }
+
+ def this(offset: Expression) = {
+ this(offset = MonotonicallyIncreasingID.parseExpression(offset))
+ logDebug(s"offset is $offset")
--- End diff --
Remove this line.
---
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