[CARBONDATA-4291] Carbon hive table supports float datatype

Author: jack86596

core/src/main/java/org/apache/carbondata/core/datastore/page/ColumnPage.java

@@ -445,6 +445,8 @@ public Object getData(int rowId) {
       return getInt(rowId);
     } else if (dataType == LONG) {
       return getLong(rowId);
+    } else if (dataType == DataTypes.FLOAT) {
+      return getFloat(rowId);
     } else if (dataType == DataTypes.DOUBLE) {
       return getDouble(rowId);
     } else if (DataTypes.isDecimal(dataType)) {
@@ -560,6 +562,8 @@ private Object getNull(int rowId) {
       result = getInt(rowId);
     } else if (dataType == LONG) {
       result = getLong(rowId);
+    } else if (dataType == DataTypes.FLOAT) {
+      return getFloat(rowId);
     } else if (dataType == DataTypes.DOUBLE) {
       result = getDouble(rowId);
     } else if (DataTypes.isDecimal(dataType)) {

core/src/main/java/org/apache/carbondata/core/datastore/page/ColumnPageValueConverter.java

@@ -43,6 +43,12 @@ public interface ColumnPageValueConverter {
 
   long decodeLong(int value);
 
+  float decodeFloat(byte value);
+
+  float decodeFloat(short value);
+
+  float decodeFloat(int value);
+
   double decodeDouble(byte value);
 
   double decodeDouble(short value);