Hive: Optimize tableExists API in hive catalog

hive-metastore/src/main/java/org/apache/iceberg/hive/HiveCatalog.java

@@ -412,6 +412,26 @@ private void validateTableIsIcebergTableOrView(
     }
   }
 
+  @Override
+  public boolean tableExists(TableIdentifier identifier) {
+    if (!isValidIdentifier(identifier)) {
+      return false;
+    }
+
+    String database = identifier.namespace().level(0);
+    try {
+      Table table = clients.run(client -> client.getTable(database, identifier.name()));
+      HiveOperationsBase.validateTableIsIceberg(table, fullTableName(name, identifier));
+      return true;
+    } catch (NoSuchTableException | NoSuchObjectException e) {
+      return false;
+    } catch (TException e) {
+      throw new RuntimeException("Failed to check table existence of " + identifier, e);
+    } catch (InterruptedException e) {
+      throw new RuntimeException("Interrupted in call to check table existence", e);
+    }
+  }
+
   @Override
   public void createNamespace(Namespace namespace, Map<String, String> meta) {
     Preconditions.checkArgument(

hive-metastore/src/test/java/org/apache/iceberg/hive/HiveTableTest.java

@@ -377,7 +377,7 @@ public void testHiveTableAndIcebergTableWithSameName(TableType tableType)
         .containsExactly(TABLE_IDENTIFIER, identifier);
     catalog.setListAllTables(false); // reset to default.
 
-    // create an iceberg table with the same name
+    // create an iceberg table with name collision with hive table
     assertThatThrownBy(() -> catalog.createTable(identifier, SCHEMA, PartitionSpec.unpartitioned()))
         .isInstanceOf(NoSuchIcebergTableException.class)
         .hasMessageStartingWith(String.format("Not an iceberg table: hive.%s", identifier));
@@ -386,6 +386,12 @@ public void testHiveTableAndIcebergTableWithSameName(TableType tableType)
 
     assertThat(catalog.tableExists(TABLE_IDENTIFIER)).isTrue();
     HIVE_METASTORE_EXTENSION.metastoreClient().dropTable(DB_NAME, hiveTableName);
+
+    // create an iceberg table after hive table dropped
+    catalog.createTable(identifier, SCHEMA, PartitionSpec.unpartitioned());
+    assertThat(catalog.tableExists(identifier)).isTrue();
+    catalog.dropTable(identifier, true);
+    assertThat(catalog.tableExists(identifier)).isFalse();
   }
 
   private org.apache.hadoop.hive.metastore.api.Table createHiveTable(