Merge pull request #272437 from v-luckywang/0417-Difference

[Doc update] Add difference section for MySQL, MariaDB and PostgreSQL

Author: prmerger-automator[bot]

articles/data-factory/connector-mariadb.md

@@ -7,7 +7,7 @@ ms.service: data-factory
 ms.subservice: data-movement
 ms.custom: synapse
 ms.topic: conceptual
-ms.date: 02/07/2024
+ms.date: 04/17/2024
 ms.author: jianleishen
 ---
 
@@ -294,6 +294,17 @@ Here are steps that help you upgrade your MariaDB driver version:
 
 1. The latest driver version v2 supports more MariaDB versions. For more information, see [Supported capabilities](connector-mariadb.md#supported-capabilities). 
 
+## Differences between MariaDB using the recommended driver version and using the legacy driver version
+
+The table below shows the data type mapping differences between MariaDB connector using the recommended driver version and using the legacy driver version.
+
+|MariaDB data type |Interim service data type (using the recommended driver version) |Interim service data type (using the legacy driver version)|
+|:---|:---|:---|
+|bit(1)| UInt64|Boolean|
+|bit(M), M>1|UInt64|Byte[]|
+|bool|Boolean|Int16|
+|JSON|String|Byte[]|
+
 ## 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).

articles/data-factory/connector-mysql.md

@@ -7,7 +7,7 @@ ms.service: data-factory
 ms.subservice: data-movement
 ms.custom: synapse
 ms.topic: conceptual
-ms.date: 02/07/2024
+ms.date: 04/17/2024
 ms.author: jianleishen
 ---
 
@@ -323,6 +323,17 @@ Here are steps that help you upgrade your MySQL driver version:
 
 1. The latest driver version v2 supports more MySQL versions. For more information, see [Supported capabilities](connector-mysql.md#supported-capabilities).
 
+## Differences between MySQL using the recommended driver version and using the legacy driver version
+
+The table below shows the data type mapping differences between MySQL connector using the recommended driver version and using the legacy driver version.
+
+|MySQL data type |Interim service data type (using the recommended driver version) |Interim service data type (using the legacy driver version)|
+|:---|:---|:---|
+|bit(1)| UInt64|Boolean|
+|bit(M), M>1|UInt64|Byte[]|
+|bool|Boolean|Int16|
+|JSON|String|Byte[]|
+
 ## 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).

articles/data-factory/connector-postgresql.md

@@ -7,7 +7,7 @@ ms.service: data-factory
 ms.subservice: data-movement
 ms.custom: synapse
 ms.topic: conceptual
-ms.date: 03/07/2024
+ms.date: 04/17/2024
 ms.author: jianleishen
 ---
 # Copy data from PostgreSQL using Azure Data Factory or Synapse Analytics
@@ -253,7 +253,7 @@ If you were using `RelationalSource` typed source, it is still supported as-is,
 
 When copying data from PostgreSQL, the following mappings are used from PostgreSQL data types to interim data types used by the service internally. See [Schema and data type mappings](copy-activity-schema-and-type-mapping.md) to learn about how copy activity maps the source schema and data type to the sink.
 
-|PostgreSql data type | Interim service data type | Interim service data type (for the legacy driver version) |
+|PostgreSql data type | Interim service data type | Interim service data type for PostgreSQL (legacy) |
 |:---|:---|:---|
 |`SmallInt`|`Int16`|`Int16`|
 |`Integer`|`Int32`|`Int32`|
@@ -317,5 +317,17 @@ Here are steps that help you upgrade your PostgreSQL linked service:
 
 1. The data type mapping for the latest PostgreSQL linked service is different from that for the legacy version. To learn the latest data type mapping, see [Data type mapping for PostgreSQL](#data-type-mapping-for-postgresql).
 
+## Differences between PostgreSQL and PostgreSQL (legacy)
+
+The table below shows the data type mapping differences between PostgreSQL and PostgreSQL (legacy).
+
+|PostgreSQL data type|Interim service data type for PostgreSQL|Interim service data type for PostgreSQL (legacy)|
+|:---|:---|:---|
+|Money|Decimal|String|
+|Timestamp with time zone |DateTime|String|
+|Time with time zone |DateTimeOffset|String|
+|Interval | TimeSpan|String|
+|BigDecimal|Not supported. As an alternative, utilize `to_char()` function to convert BigDecimal to String.|String|
+
 ## 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).