Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5865#discussion_r29553257
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala ---
@@ -194,12 +195,34 @@ class DataFrame private[sql](
}
}
- // Pad the cells
- rows.map { row =>
- row.zipWithIndex.map { case (cell, i) =>
- String.format(s"%-${colWidths(i)}s", cell)
- }.mkString(" ")
- }.mkString("\n")
+ // Create SeparateLine
+ val sep:String = {
+ "+" + colWidths.map {
+ size =>
+ val columnSep = new Array[Char](size)
+ for (i <- 0 until size)
+ columnSep(i) = '-'
+ String.valueOf(columnSep)
+ }.mkString("+") + "+\n"
+ }
+
+ sb.append(sep)
+
+ // append column names
+ sb.append("|").append(rows.head.zipWithIndex.map { case (cell, i) =>
+ String.format(s"%${colWidths(i)}s", cell)
--- End diff --
maybe use the padding function on string directly, rather than doing the
format.
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