beyond1920 commented on code in PR #20361:
URL: https://github.com/apache/flink/pull/20361#discussion_r929880836


##########
flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/internal/TableEnvironmentImpl.java:
##########
@@ -461,6 +463,23 @@ public boolean dropTemporaryFunction(String path) {
         return 
functionCatalog.dropTemporaryCatalogFunction(unresolvedIdentifier, true);
     }
 
+    @Override
+    public void addJar(String jarPath) {
+        try {
+            resourceManager.registerJarResources(

Review Comment:
   Do we need save jar into catalog?
   Or added Jar always work in session scope?



##########
flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/internal/TableEnvironmentImpl.java:
##########
@@ -461,6 +463,23 @@ public boolean dropTemporaryFunction(String path) {
         return 
functionCatalog.dropTemporaryCatalogFunction(unresolvedIdentifier, true);
     }
 
+    @Override
+    public void addJar(String jarPath) {
+        try {
+            resourceManager.registerJarResources(
+                    Collections.singletonList(new 
ResourceUri(ResourceType.JAR, jarPath)));
+        } catch (IOException e) {
+            throw new TableException(String.format("Could not register the 
specified jar [%s].", jarPath), e);
+        }
+    }
+
+    @Override
+    public List<String> listJars() {

Review Comment:
   AddJar and listJars could work for DataStream user or TableAPI user.
   How to use this function for SQL user?
   We also need to support `AddJarOperation` in `executeInternal` method, WDYT?



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