diff --git a/docs/content.zh/docs/connectors/table/datagen.md b/docs/content.zh/docs/connectors/table/datagen.md
index 7337df5e6baf6..96dff1c11d99c 100644
--- a/docs/content.zh/docs/connectors/table/datagen.md
+++ b/docs/content.zh/docs/connectors/table/datagen.md
@@ -129,7 +129,7 @@ CREATE TABLE datagen (
       <td>可选</td>
       <td style="word-wrap: break-word;">0</td>
       <td>Duration</td>
-      <td>随机生成器生成相对当前时间向过去偏移的最大值，适用于 Timestamp 类型.</td>
+      <td>随机生成器生成相对当前时间向过去偏移的最大值，适用于 timestamp 类型。</td>
     </tr>
     <tr>
       <td><h5>fields.#.length</h5></td>
diff --git a/docs/content/docs/connectors/table/datagen.md b/docs/content/docs/connectors/table/datagen.md
index 865cd7c5342ea..d4f9432aa9f30 100644
--- a/docs/content/docs/connectors/table/datagen.md
+++ b/docs/content/docs/connectors/table/datagen.md
@@ -159,7 +159,7 @@ Types
             <td>random</td>
             <td>
                 Resolves a past timestamp relative to the current timestamp of the local machine.
-                The max past is specified by the 'max-past' option.
+                The max past can be specified by the 'max-past' option.
             </td>
         </tr>
         <tr>
@@ -167,7 +167,7 @@ Types
             <td>random</td>
             <td>
                 Resolves a past timestamp relative to the current timestamp of the local machine.
-                The max past is specified by the 'max-past' option.
+                The max past can be specified by the 'max-past' option.
             </td>
         </tr>
         <tr>
@@ -264,7 +264,7 @@ Connector Options
       <td>optional</td>
       <td style="word-wrap: break-word;">0</td>
       <td>Duration</td>
-      <td>Maximum past of timestamp random generator， work for timestamp types.</td>
+      <td>Maximum past of timestamp random generator, only works for timestamp types.</td>
     </tr>
     <tr>
       <td><h5>fields.#.length</h5></td>
diff --git a/flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/connector/datagen/table/DataGenVisitorBase.java b/flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/connector/datagen/table/DataGenVisitorBase.java
index ba8c281808410..8fbc894e9966c 100644
--- a/flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/connector/datagen/table/DataGenVisitorBase.java
+++ b/flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/connector/datagen/table/DataGenVisitorBase.java
@@ -24,13 +24,9 @@
 import org.apache.flink.runtime.state.FunctionInitializationContext;
 import org.apache.flink.streaming.api.functions.source.datagen.DataGenerator;
 import org.apache.flink.table.api.ValidationException;
-import org.apache.flink.table.data.TimestampData;
 import org.apache.flink.table.types.logical.DateType;
-import org.apache.flink.table.types.logical.LocalZonedTimestampType;
 import org.apache.flink.table.types.logical.LogicalType;
 import org.apache.flink.table.types.logical.TimeType;
-import org.apache.flink.table.types.logical.TimestampType;
-import org.apache.flink.table.types.logical.ZonedTimestampType;
 import org.apache.flink.table.types.logical.utils.LogicalTypeDefaultVisitor;
 
 import java.io.Serializable;
@@ -66,24 +62,6 @@ public DataGeneratorContainer visit(TimeType timeType) {
         return DataGeneratorContainer.of(TimeGenerator.of(() -> LocalTime.now().get(MILLI_OF_DAY)));
     }
 
-    @Override
-    public DataGeneratorContainer visit(TimestampType timestampType) {
-        return DataGeneratorContainer.of(
-                TimeGenerator.of(() -> TimestampData.fromEpochMillis(System.currentTimeMillis())));
-    }
-
-    @Override
-    public DataGeneratorContainer visit(ZonedTimestampType zonedTimestampType) {
-        return DataGeneratorContainer.of(
-                TimeGenerator.of(() -> TimestampData.fromEpochMillis(System.currentTimeMillis())));
-    }
-
-    @Override
-    public DataGeneratorContainer visit(LocalZonedTimestampType localZonedTimestampType) {
-        return DataGeneratorContainer.of(
-                TimeGenerator.of(() -> TimestampData.fromEpochMillis(System.currentTimeMillis())));
-    }
-
     @Override
     protected DataGeneratorContainer defaultMethod(LogicalType logicalType) {
         throw new ValidationException("Unsupported type: " + logicalType);