[FLINK-35545][doc] Revert dbz doc 2.0 back to 1.9

docs/content.zh/docs/connectors/flink-sources/db2-cdc.md

@@ -78,7 +78,7 @@ more released versions will be available in the Maven central warehouse.
 Setup Db2 server
 ----------------
 
-Follow the steps in the [Debezium Db2 Connector](https://debezium.io/documentation/reference/2.0/connectors/db2.html#setting-up-db2).
+Follow the steps in the [Debezium Db2 Connector](https://debezium.io/documentation/reference/1.9/connectors/db2.html#setting-up-db2).
 
 
 Notes
@@ -199,7 +199,7 @@ for more detailed information.</td>
       <td>String</td>
       <td>The session time zone in database server, e.g. "Asia/Shanghai". 
           It controls how the TIMESTAMP type in Db2 converted to STRING.
-          See more <a href="https://debezium.io/documentation/reference/2.0/connectors/db2.html#db2-temporal-types">here</a>.
+          See more <a href="https://debezium.io/documentation/reference/1.9/connectors/db2.html#db2-temporal-types">here</a>.
           If not set, then ZoneId.systemDefault() is used to determine the server time zone.
       </td>
     </tr>
@@ -251,7 +251,7 @@ for more detailed information.</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from 
 Db2 server.
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/db2.html#db2-connector-properties">Debezium's Db2 Connector properties</a></td> 
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/db2.html#db2-connector-properties">Debezium's Db2 Connector properties</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>

docs/content.zh/docs/connectors/flink-sources/mysql-cdc.md

@@ -102,7 +102,7 @@ mysql> GRANT SELECT, SHOW DATABASES, REPLICATION SLAVE, REPLICATION CLIENT ON *.
 mysql> FLUSH PRIVILEGES;
 ```
 
-查看更多用户权限问题请参考 [权限说明](https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-creating-user).
+查看更多用户权限问题请参考 [权限说明](https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-creating-user).
 
 
 注意事项
@@ -306,7 +306,7 @@ Flink SQL> SELECT * FROM orders;
       <td>String</td>
       <td>数据库服务器中的会话时区， 例如： "Asia/Shanghai". 
           它控制 MYSQL 中的时间戳类型如何转换为字符串。
-          更多请参考 <a href="https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-temporal-types"> 这里</a>.
+          更多请参考 <a href="https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-temporal-types"> 这里</a>.
           如果没有设置，则使用ZoneId.systemDefault()来确定服务器时区。
       </td>
     </tr>
@@ -361,7 +361,7 @@ Flink SQL> SELECT * FROM orders;
       <td>String</td>
       <td>将 Debezium 的属性传递给 Debezium 嵌入式引擎，该引擎用于从 MySQL 服务器捕获数据更改。
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          查看更多关于 <a href="https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-connector-properties"> Debezium 的  MySQL 连接器属性</a></td> 
+          查看更多关于 <a href="https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-connector-properties"> Debezium 的  MySQL 连接器属性</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>

docs/content.zh/docs/connectors/flink-sources/oracle-cdc.md

@@ -234,7 +234,7 @@ Overall, the steps for configuring CDB database is quite similar to non-CDB data
      exit
    ```
 
-See more about the [Setting up Oracle](https://debezium.io/documentation/reference/2.0/connectors/oracle.html#setting-up-oracle)
+See more about the [Setting up Oracle](https://debezium.io/documentation/reference/1.9/connectors/oracle.html#setting-up-oracle)
 
 How to create an Oracle CDC table
 ----------------
@@ -401,7 +401,7 @@ Connector Options
       <td>String</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from Oracle server.
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/oracle.html#oracle-connector-properties">Debezium's Oracle Connector properties</a></td> 
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/oracle.html#oracle-connector-properties">Debezium's Oracle Connector properties</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>
@@ -509,7 +509,7 @@ Features
 
 ### Exactly-Once Processing
 
-The Oracle CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/2.0/connectors/oracle.html#how-the-oracle-connector-works).
+The Oracle CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/1.9/connectors/oracle.html#how-the-oracle-connector-works).
 
 ### Startup Reading Position
 

docs/content.zh/docs/connectors/flink-sources/overview.md

@@ -186,7 +186,7 @@ The following JSON data show the change event in JSON format.
   "transaction": null
 }
 ```
-**Note:** Please refer [Debezium documentation](https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-events
+**Note:** Please refer [Debezium documentation](https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-events
 )  to know the meaning of each field.
 
 In some cases, users can use the `JsonDebeziumDeserializationSchema(true)` Constructor to enabled include schema in the message. Then the Debezium JSON message may look like this:

docs/content.zh/docs/connectors/flink-sources/postgres-cdc.md

@@ -186,7 +186,7 @@ Connector Options
       <td>String</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from Postgres server.
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/postgresql.html#postgresql-connector-properties">Debezium's Postgres Connector properties</a></td>
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/postgresql.html#postgresql-connector-properties">Debezium's Postgres Connector properties</a></td>
     </tr>
     <tr>
       <td>debezium.snapshot.select.statement.overrides</td>
@@ -241,7 +241,7 @@ Connector Options
 </div>
 <div>
 
-Note: `slot.name` is recommended to set for different tables to avoid the potential `PSQLException: ERROR: replication slot "flink" is active for PID 974` error. See more [here](https://debezium.io/documentation/reference/2.0/connectors/postgresql.html#postgresql-property-slot-name).
+Note: `slot.name` is recommended to set for different tables to avoid the potential `PSQLException: ERROR: replication slot "flink" is active for PID 974` error. See more [here](https://debezium.io/documentation/reference/1.9/connectors/postgresql.html#postgresql-property-slot-name).
 
 ### Incremental Snapshot Options
 
@@ -432,7 +432,7 @@ and then PostgreSQL CDC Source assigns the chunks to multiple readers to read th
 
 ### Exactly-Once Processing
 
-The Postgres CDC connector is a Flink Source connector which will read database snapshot first and then continues to read binlogs with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/2.0/connectors/postgresql.html#how-the-postgresql-connector-works).
+The Postgres CDC connector is a Flink Source connector which will read database snapshot first and then continues to read binlogs with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/1.9/connectors/postgresql.html#how-the-postgresql-connector-works).
 
 ### DataStream Source
 

docs/content.zh/docs/connectors/flink-sources/sqlserver-cdc.md

@@ -217,7 +217,7 @@ Connector Options
       <td>String</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from SQLServer.
           For example: <code>'debezium.snapshot.mode' = 'initial_only'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/sqlserver.html#sqlserver-required-connector-configuration-properties">Debezium's SQLServer Connector properties</a></td> 
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/sqlserver.html#sqlserver-required-connector-configuration-properties">Debezium's SQLServer Connector properties</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>
@@ -319,7 +319,7 @@ Features
 
 ### Exactly-Once Processing
 
-The SQLServer CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/2.0/connectors/sqlserver.html#how-the-sqlserver-connector-works).
+The SQLServer CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/1.9/connectors/sqlserver.html#how-the-sqlserver-connector-works).
 
 ### Startup Reading Position
 

docs/content.zh/docs/connectors/pipeline-connectors/mysql.md

@@ -252,7 +252,7 @@ pipeline:
       <td>String</td>
       <td>将 Debezium 的属性传递给 Debezium 嵌入式引擎，该引擎用于从 MySQL 服务器捕获数据更改。
           例如: <code>'debezium.snapshot.mode' = 'never'</code>.
-          查看更多关于 <a href="https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-connector-properties"> Debezium 的  MySQL 连接器属性</a></td> 
+          查看更多关于 <a href="https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-connector-properties"> Debezium 的  MySQL 连接器属性</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>

docs/content/docs/connectors/flink-sources/db2-cdc.md

@@ -78,7 +78,7 @@ You may need to configure the following dependencies manually.
 Setup Db2 server
 ----------------
 
-Follow the steps in the [Debezium Db2 Connector](https://debezium.io/documentation/reference/2.0/connectors/db2.html#setting-up-db2).
+Follow the steps in the [Debezium Db2 Connector](https://debezium.io/documentation/reference/1.9/connectors/db2.html#setting-up-db2).
 
 
 Notes
@@ -199,7 +199,7 @@ for more detailed information.</td>
       <td>String</td>
       <td>The session time zone in database server, e.g. "Asia/Shanghai". 
           It controls how the TIMESTAMP type in Db2 converted to STRING.
-          See more <a href="https://debezium.io/documentation/reference/2.0/connectors/db2.html#db2-temporal-types">here</a>.
+          See more <a href="https://debezium.io/documentation/reference/1.9/connectors/db2.html#db2-temporal-types">here</a>.
           If not set, then ZoneId.systemDefault() is used to determine the server time zone.
       </td>
     </tr>
@@ -251,7 +251,7 @@ for more detailed information.</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from 
 Db2 server.
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/db2.html#db2-connector-properties">Debezium's Db2 Connector properties</a></td> 
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/db2.html#db2-connector-properties">Debezium's Db2 Connector properties</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>

docs/content/docs/connectors/flink-sources/mysql-cdc.md

@@ -96,7 +96,7 @@ mysql> GRANT SELECT, SHOW DATABASES, REPLICATION SLAVE, REPLICATION CLIENT ON *.
 mysql> FLUSH PRIVILEGES;
 ```
 
-See more about the [permission explanation](https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-creating-user).
+See more about the [permission explanation](https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-creating-user).
 
 
 Notes
@@ -304,7 +304,7 @@ Connector Options
       <td>String</td>
       <td>The session time zone in database server, e.g. "Asia/Shanghai". 
           It controls how the TIMESTAMP type in MYSQL converted to STRING.
-          See more <a href="https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-temporal-types">here</a>.
+          See more <a href="https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-temporal-types">here</a>.
           If not set, then ZoneId.systemDefault() is used to determine the server time zone.
       </td>
     </tr>
@@ -359,7 +359,7 @@ During a snapshot operation, the connector will query each included table to pro
       <td>String</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from MySQL server.
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-connector-properties">Debezium's MySQL Connector properties</a></td> 
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-connector-properties">Debezium's MySQL Connector properties</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>

docs/content/docs/connectors/flink-sources/oracle-cdc.md

@@ -235,7 +235,7 @@ Overall, the steps for configuring CDB database is quite similar to non-CDB data
      exit
    ```
 
-See more about the [Setting up Oracle](https://debezium.io/documentation/reference/2.0/connectors/oracle.html#setting-up-oracle)
+See more about the [Setting up Oracle](https://debezium.io/documentation/reference/1.9/connectors/oracle.html#setting-up-oracle)
 
 How to create an Oracle CDC table
 ----------------
@@ -402,7 +402,7 @@ Connector Options
       <td>String</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from Oracle server.
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/oracle.html#oracle-connector-properties">Debezium's Oracle Connector properties</a></td> 
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/oracle.html#oracle-connector-properties">Debezium's Oracle Connector properties</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>
@@ -510,7 +510,7 @@ Features
 
 ### Exactly-Once Processing
 
-The Oracle CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/2.0/connectors/oracle.html#how-the-oracle-connector-works).
+The Oracle CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/1.9/connectors/oracle.html#how-the-oracle-connector-works).
 
 ### Startup Reading Position
 

docs/content/docs/connectors/flink-sources/overview.md

@@ -186,7 +186,7 @@ The following JSON data show the change event in JSON format.
   "transaction": null
 }
 ```
-**Note:** Please refer [Debezium documentation](https://debezium.io/documentation/reference/2.0/connectors/mysql.html#mysql-events
+**Note:** Please refer [Debezium documentation](https://debezium.io/documentation/reference/1.9/connectors/mysql.html#mysql-events
 )  to know the meaning of each field.
 
 In some cases, users can use the `JsonDebeziumDeserializationSchema(true)` Constructor to enabled include schema in the message. Then the Debezium JSON message may look like this:

docs/content/docs/connectors/flink-sources/postgres-cdc.md

@@ -183,7 +183,7 @@ SELECT * FROM shipments;
       <td>String</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from Postgres server.
           For example: <code>'debezium.snapshot.mode' = 'never'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/postgresql.html#postgresql-connector-properties">Debezium's Postgres Connector properties</a></td>
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/postgresql.html#postgresql-connector-properties">Debezium's Postgres Connector properties</a></td>
     </tr>
     <tr>
       <td>debezium.snapshot.select.statement.overrides</td>
@@ -251,7 +251,7 @@ SELECT * FROM shipments;
 
 #### `slot.name` option
 
-The `slot.name` is recommended to set for different tables to avoid the potential `PSQLException: ERROR: replication slot "flink" is active for PID 974` error. See more [here](https://debezium.io/documentation/reference/2.0/connectors/postgresql.html#postgresql-property-slot-name).
+The `slot.name` is recommended to set for different tables to avoid the potential `PSQLException: ERROR: replication slot "flink" is active for PID 974` error. See more [here](https://debezium.io/documentation/reference/1.9/connectors/postgresql.html#postgresql-property-slot-name).
 
 #### `scan.lsn-commit.checkpoints-num-delay` option
 
@@ -443,7 +443,7 @@ and then PostgreSQL CDC Source assigns the chunks to multiple readers to read th
 
 ### Exactly-Once Processing
 
-The Postgres CDC connector is a Flink Source connector which will read database snapshot first and then continues to read binlogs with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/2.0/connectors/postgresql.html#how-the-postgresql-connector-works).
+The Postgres CDC connector is a Flink Source connector which will read database snapshot first and then continues to read binlogs with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/1.9/connectors/postgresql.html#how-the-postgresql-connector-works).
 
 ### DataStream Source
 

docs/content/docs/connectors/flink-sources/sqlserver-cdc.md

@@ -217,7 +217,7 @@ Connector Options
       <td>String</td>
       <td>Pass-through Debezium's properties to Debezium Embedded Engine which is used to capture data changes from SQLServer.
           For example: <code>'debezium.snapshot.mode' = 'initial_only'</code>.
-          See more about the <a href="https://debezium.io/documentation/reference/2.0/connectors/sqlserver.html#sqlserver-required-connector-configuration-properties">Debezium's SQLServer Connector properties</a></td> 
+          See more about the <a href="https://debezium.io/documentation/reference/1.9/connectors/sqlserver.html#sqlserver-required-connector-configuration-properties">Debezium's SQLServer Connector properties</a></td> 
     </tr>
     <tr>
       <td>scan.incremental.close-idle-reader.enabled</td>
@@ -319,7 +319,7 @@ Features
 
 ### Exactly-Once Processing
 
-The SQLServer CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/2.0/connectors/sqlserver.html#how-the-sqlserver-connector-works).
+The SQLServer CDC connector is a Flink Source connector which will read database snapshot first and then continues to read change events with **exactly-once processing** even failures happen. Please read [How the connector works](https://debezium.io/documentation/reference/1.9/connectors/sqlserver.html#how-the-sqlserver-connector-works).
 
 ### Startup Reading Position