Addressed review comments. Minor fix to test, and remove extra empty …

…line

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JDBCRelation.scala

@@ -27,7 +27,6 @@ import org.apache.spark.sql.jdbc.JdbcDialects
 import org.apache.spark.sql.sources._
 import org.apache.spark.sql.types.StructType
 
-
 /**
  * Instructions on how to partition the table among workers.
  */

sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCSuite.scala

@@ -851,8 +851,8 @@ class JDBCSuite extends SparkFunSuite
     assert(sql("SELECT * FROM mixedCaseCols WHERE Id != 2").collect().size == 2)
     assert(sql("SELECT * FROM mixedCaseCols WHERE Id <=> 2").collect().size == 1)
     assert(sql("SELECT * FROM mixedCaseCols WHERE Name LIKE 'fr%'").collect().size == 1)
-    assert(sql("SELECT * FROM mixedCaseCols WHERE NAME LIKE '%ed'").collect().size == 1)
-    assert(sql("SELECT * FROM mixedCaseCols WHERE NAME LIKE '%re%'").collect().size == 1)
+    assert(sql("SELECT * FROM mixedCaseCols WHERE Name LIKE '%ed'").collect().size == 1)
+    assert(sql("SELECT * FROM mixedCaseCols WHERE Name LIKE '%re%'").collect().size == 1)
     assert(sql("SELECT * FROM mixedCaseCols WHERE Name IS NULL").collect().size == 1)
     assert(sql("SELECT * FROM mixedCaseCols WHERE Name IS NOT NULL").collect().size == 2)
     assert(sql("SELECT * FROM mixedCaseCols WHERE Name IN ('mary', 'fred')").collect().size == 2)