couple fixes

Author: brkyvz

python/pyspark/sql/tests.py

@@ -422,7 +422,7 @@ def test_rand_functions(self):
         rnd = df.select('key', functions.rand()).collect()
         for row in rnd:
             assert row[1] >= 0.0 and row[1] <= 1.0, "got: %s" % row[1]
-        rndn = df.select('key', functions.randn(5L)).collect()
+        rndn = df.select('key', functions.randn(5)).collect()
         for row in rndn:
             assert row[1] >= -4.0 and row[1] <= 4.0, "got: %s" % row[1]
 

sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala

@@ -1243,7 +1243,7 @@ https://cwiki.apache.org/confluence/display/Hive/Enhanced+Aggregation%2C+Cube%2C
     case Token("TOK_FUNCTION", Token(ARRAY(), Nil) :: children) =>
       CreateArray(children.map(nodeToExpr))
     case Token("TOK_FUNCTION", Token(RAND(), Nil) :: Nil) => Rand()
-    case Token("TOK_FUNCTION", Token(RAND(seed), Nil) :: Nil) => Rand(seed.toLong)
+    case Token("TOK_FUNCTION", Token(RAND(), Nil) :: seed :: Nil) => Rand(seed.toString.toLong)
     case Token("TOK_FUNCTION", Token(SUBSTR(), Nil) :: string :: pos :: Nil) =>
       Substring(nodeToExpr(string), nodeToExpr(pos), Literal.create(Integer.MAX_VALUE, IntegerType))
     case Token("TOK_FUNCTION", Token(SUBSTR(), Nil) :: string :: pos :: length :: Nil) =>