Removed AS clause from job count.

resolves #3227

Author: cppwfs

spring-cloud-dataflow-server-core/src/main/java/org/springframework/cloud/dataflow/server/batch/JdbcSearchableJobExecutionDao.java

@@ -57,7 +57,7 @@ public class JdbcSearchableJobExecutionDao extends JdbcJobExecutionDao implement
 			+ "E.CREATE_TIME, E.LAST_UPDATED, E.VERSION, I.JOB_INSTANCE_ID, I.JOB_NAME";
 
 	private static final String FIELDS_WITH_STEP_COUNT = FIELDS +
-			", (SELECT COUNT(*) FROM %PREFIX%STEP_EXECUTION AS S WHERE S.JOB_EXECUTION_ID = E.JOB_EXECUTION_ID) as STEP_COUNT";
+			", (SELECT COUNT(*) FROM %PREFIX%STEP_EXECUTION S WHERE S.JOB_EXECUTION_ID = E.JOB_EXECUTION_ID) as STEP_COUNT";
 
 
 	private static final String GET_RUNNING_EXECUTIONS = "SELECT " + FIELDS