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https://issues.apache.org/jira/browse/AVRO-3547?focusedWorklogId=793288&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-793288
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ASF GitHub Bot logged work on AVRO-3547:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 20/Jul/22 14:52
            Start Date: 20/Jul/22 14:52
    Worklog Time Spent: 10m 
      Work Description: nileyadav commented on code in PR #1736:
URL: https://github.com/apache/avro/pull/1736#discussion_r925707811


##########
lang/c++/api/CustomFields.hh:
##########
@@ -0,0 +1,52 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef avro_CustomFields_hh__
+#define avro_CustomFields_hh__
+
+#include <iostream>
+
+#include "../impl/json/JsonDom.hh"
+
+namespace avro {
+
+class AVRO_DECL CustomFields {

Review Comment:
   Added documentation for class





Issue Time Tracking
-------------------

    Worklog Id:     (was: 793288)
    Time Spent: 3h 10m  (was: 3h)

> support custom attribute at field level
> ---------------------------------------
>
>                 Key: AVRO-3547
>                 URL: https://issues.apache.org/jira/browse/AVRO-3547
>             Project: Apache Avro
>          Issue Type: Improvement
>          Components: c++
>            Reporter: Nilesh Yadav
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 3h 10m
>  Remaining Estimate: 0h
>
> Custom attributes are allowed at field level as per Avro specification : 
> [https://avro.apache.org/docs/current/spec.html#schemas|https://www.google.com/url?q=https://avro.apache.org/docs/current/spec.html%23schemas&sa=D&source=buganizer&usg=AOvVaw3JfXMgFX6Eq0Fd0TjDzgb1]
>  
> But Avro c++ implementation does not support custom attribute at field level.
> e.g. following schema cannot be parsed correctly due to presence of "sqlName" 
> attribute.
> {
>     'doc': 'weather warning',
>     'name': 'weather',
>     'type': 'record',
>     'fields': [
>     {
>         'name': 'station',
>         'type':'string',
>         'sqlName':'abc-@12'
>     },
>     {
>         'name': 'time',
>         'type':'long',
>         'sqlName': '用户名'
>     }]
> }
> Update implementation to support custom attribute at field level.



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