ATLAS-772 Ordering of columns is not maintained in schema query response, where…

addons/hive-bridge/src/main/java/org/apache/atlas/hive/bridge/HiveMetaStoreBridge.java

@@ -576,7 +576,7 @@ public class HiveMetaStoreBridge {
 
     public List<Referenceable> getColumns(List<FieldSchema> schemaList, Referenceable tableReference) throws Exception {
         List<Referenceable> colList = new ArrayList<>();
-
+        int columnPosition = 0;
         for (FieldSchema fs : schemaList) {
             LOG.debug("Processing field " + fs);
             Referenceable colReferenceable = new Referenceable(HiveDataTypes.HIVE_COLUMN.getName());
@@ -585,9 +585,11 @@ public class HiveMetaStoreBridge {
             colReferenceable.set(AtlasClient.NAME, fs.getName());
             colReferenceable.set(AtlasClient.OWNER, tableReference.get(AtlasClient.OWNER));
             colReferenceable.set("type", fs.getType());
+            colReferenceable.set(HiveDataModelGenerator.POSITION, columnPosition++);
             colReferenceable.set(HiveDataModelGenerator.COMMENT, fs.getComment());
             colReferenceable.set(HiveDataModelGenerator.TABLE, tableReference.getId());
 
+
             colList.add(colReferenceable);
         }
         return colList;

addons/hive-bridge/src/main/java/org/apache/atlas/hive/model/HiveDataModelGenerator.java

@@ -64,6 +64,7 @@ public class HiveDataModelGenerator {
     public static final String COMMENT = "comment";
     public static final String PARAMETERS = "parameters";
     public static final String COLUMNS = "columns";
+    public static final String POSITION = "position";
     public static final String PART_COLS = "partitionKeys";
     public static final String TABLE_ALIAS_LIST = "aliases";
 
@@ -224,7 +225,8 @@ public class HiveDataModelGenerator {
                 new AttributeDefinition(COMMENT, DataTypes.STRING_TYPE.getName(), Multiplicity.OPTIONAL, false, null),
                 //Making this optional since this is an incompatible change
                 //Reverse attribute to 'columns' in Table
-                new AttributeDefinition(TABLE, HiveDataTypes.HIVE_TABLE.getName(), Multiplicity.OPTIONAL, false, COLUMNS),};
+                new AttributeDefinition(TABLE, HiveDataTypes.HIVE_TABLE.getName(), Multiplicity.OPTIONAL, false, COLUMNS),
+                new AttributeDefinition(POSITION, DataTypes.INT_TYPE.getName(), Multiplicity.OPTIONAL, false, false, false, null)};
 
         HierarchicalTypeDefinition<ClassType> definition =
                 new HierarchicalTypeDefinition<>(ClassType.class, HiveDataTypes.HIVE_COLUMN.getName(), null,

release-log.txt

@@ -10,6 +10,7 @@ ATLAS-1060 Add composite indexes for exact match performance improvements for al
 ATLAS-1127 Modify creation and modification timestamps to Date instead of Long(sumasai)
 
 ALL CHANGES:
+ATLAS-772 Ordering of columns is not maintained in schema query response, where as hive table entity response maintains the ordering (sarath.kum4r@gmail.com via kevalbhatt)
 ATLAS-1140 All the tag's attributes are not seen while applying a tag to entity (kevalbhatt)
 ATLAS-1141 UI-Issue - Tag with spaces, when searched, then it is wrongly set in search textbox. (Kalyanikashikar via kevalbhatt)
 ATLAS-1129 Remove notification failed logs on retry and add sleep between retries (svimal2106 via sumasai)