!75 issues-I4IJ6V: Hive的Double转换其他数据库类型数据过长问题

* issues-I4IJ6V: Hive的Double类型转换其他数据库类型数据过长问题

dbswitch-core/src/main/java/com/gitee/dbswitch/core/model/ColumnMetaData.java

@@ -356,6 +356,14 @@ public class ColumnMetaData {
             }
           }
 
+          // If we're dealing with Hive and double precision types
+          if (desc.getDbType() == DatabaseTypeEnum.HIVE && type == java.sql.Types.DOUBLE
+              && precision >= 15
+              && length >= 15) {
+            precision = 6;
+            length = 25;
+          }
+
           // if the length or precision needs a BIGNUMBER
           //if (length > 15 || precision > 15) {
           //	valtype = ColumnMetaData.TYPE_BIGNUMBER;