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[SQL]Add base row updating methods for JoinedRow #1187

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[SQL]Add base row updating methods for JoinedRow #1187

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17 changes: 17 additions & 0 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Projection.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,18 @@ class JoinedRow extends Row {
this
}

/** Updates this JoinedRow by updating its left base row. Returns itself. */
def withLeft(newLeft: Row): Row = {
row1 = newLeft
this
}

/** Updates this JoinedRow by updating its right base row. Returns itself. */
def withRight(newRight: Row): Row = {
row2 = newRight
this
}

def iterator = row1.iterator ++ row2.iterator

def length = row1.length + row2.length
Expand Down Expand Up @@ -124,4 +136,9 @@ class JoinedRow extends Row {
}
new GenericRow(copiedValues)
}

override def toString() = {
val row = (if (row1 != null) row1 else Seq[Any]()) ++ (if (row2 != null) row2 else Seq[Any]())
s"[${row.mkString(",")}]"
}
}