From 97b307c87c0f262ea3e020bf3d72383deef76619 Mon Sep 17 00:00:00 2001
From: actuaryzhang <actuaryzhang10@gmail.com>
Date: Thu, 22 Jun 2017 10:12:33 +0100
Subject: [PATCH] [SQL][DOC] Fix documentation of lpad
## What changes were proposed in this pull request?
Fix incomplete documentation for `lpad`.
Author: actuaryzhang <actuaryzhang10@gmail.com>
Closes #18367 from actuaryzhang/SQLDoc.
---
.../src/main/scala/org/apache/spark/sql/functions.scala | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala
index 9a35a5c465..839cbf4202 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala
@@ -2292,7 +2292,8 @@ object functions {
}
/**
- * Left-pad the string column with
+ * Left-pad the string column with pad to a length of len. If the string column is longer
+ * than len, the return value is shortened to len characters.
*
* @group string_funcs
* @since 1.5.0
@@ -2350,7 +2351,8 @@ object functions {
def unbase64(e: Column): Column = withExpr { UnBase64(e.expr) }
/**
- * Right-padded with pad to a length of len.
+ * Right-pad the string column with pad to a length of len. If the string column is longer
+ * than len, the return value is shortened to len characters.
*
* @group string_funcs
* @since 1.5.0
--
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