Update data type

Author: Lucky-Wang16

articles/data-factory/connector-presto.md

@@ -242,8 +242,8 @@ When you copy data from Presto, the following mappings apply from Presto's data
 | BOOLEAN | Boolean | Boolean |
 | CHAR | String | String |
 | DATE | Date | Datetime |
-| DECIMAL (Precision < 28) | BigDecimal | Decimal |
-| DECIMAL (Precision >= 28) | BigDecimal | String |
+| DECIMAL (Precision < 28) | Decimal | Decimal |
+| DECIMAL (Precision >= 28) | Decimal | String |
 | DOUBLE | Double | Decimal |
 | INTEGER | Int32 | Int32 |
 | INTERVAL_DAY_TO_SECOND | TimeSpan | Not supported. |
@@ -281,7 +281,7 @@ The Presto connector version 2.0 (Preview) offers new functionalities and is com
 
 | Version 2.0 (Preview)  | Version 1.0 | 
 | :----------- | :------- |
-| The following mappings are used from Presto data types to interim service data type.<br><br>DATE -> Date <br>DECIMAL (Precision < 28) -> BigDecimal <br>DECIMAL (Precision >= 28) -> BigDecimal <br> DOUBLE -> Double <br>INTERVAL_DAY_TO_SECOND -> TimeSpan <br>INTERVAL_YEAR_TO_MONTH -> String<br>IPADDRESS -> String<br>TIME -> Time<br>TIMESTAMPWITHTIMEZONE -> Datetimeoffset<br>TINYINT -> SByte<br>UUID -> Guid| The following mappings are used from Presto data types to interim service data type.<br><br>DATE -> Datetime <br>DECIMAL (Precision < 28) -> Decimal <br>DECIMAL (Precision >= 28) -> String <br>DOUBLE -> Decimal <br>TIME -> TimeSpan<br>TINYINT -> Int16<br> Other mappings supported by version 2.0 (Preview) listed left are not supported by version 1.0. |  
+| The following mappings are used from Presto data types to interim service data type.<br><br>DATE -> Date <br>DECIMAL (Precision >= 28) -> Decimal <br> DOUBLE -> Double <br>INTERVAL_DAY_TO_SECOND -> TimeSpan <br>INTERVAL_YEAR_TO_MONTH -> String<br>IPADDRESS -> String<br>TIME -> Time<br>TIMESTAMPWITHTIMEZONE -> Datetimeoffset<br>TINYINT -> SByte<br>UUID -> Guid| The following mappings are used from Presto data types to interim service data type.<br><br>DATE -> Datetime <br>DECIMAL (Precision >= 28) -> String <br>DOUBLE -> Decimal <br>TIME -> TimeSpan<br>TINYINT -> Int16<br> Other mappings supported by version 2.0 (Preview) listed left are not supported by version 1.0. |  
 
 ## Related content
 For a list of data stores supported as sources and sinks by the copy activity, see [supported data stores](copy-activity-overview.md#supported-data-stores-and-formats).