address comments

Author: gatorsmile

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala

@@ -57,7 +57,7 @@ trait CheckAnalysis extends PredicateHelper {
       case o: Int => failAnalysis(
         s"number_rows in limit clause must be equal to or greater than 0. number_rows:$o")
       case o => failAnalysis(
-        s"""number_rows in limit clause cannot be cast to integer:\"$o\".""")
+        s"""number_rows in limit clause must be integer. number_rows:\"$o\".""")
     }
   }
 

sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala

@@ -684,12 +684,12 @@ class SQLQuerySuite extends QueryTest with SharedSQLContext {
     var e = intercept[AnalysisException] {
       sql("SELECT * FROM testData LIMIT true")
     }.getMessage
-    assert(e.contains("number_rows in limit clause cannot be cast to integer:\"true\""))
+    assert(e.contains("number_rows in limit clause must be integer. number_rows:\"true\""))
 
     e = intercept[AnalysisException] {
       sql("SELECT * FROM testData LIMIT 'a'")
     }.getMessage
-    assert(e.contains("number_rows in limit clause cannot be cast to integer:\"a\""))
+    assert(e.contains("number_rows in limit clause must be integer. number_rows:\"a\""))
   }
 
   test("negative in LIMIT or TABLESAMPLE") {