[jira] [Created] (FLINK-30093) [Flink SQL][Protobuf] CompileException when querying Kafka topic using google.protobuf.Timestamp

["James Mcguire (Jira)" <ji...@apache.org>]

James Mcguire created FLINK-30093:
-------------------------------------

             Summary: [Flink SQL][Protobuf] CompileException when querying Kafka topic using google.protobuf.Timestamp 
                 Key: FLINK-30093
                 URL: https://issues.apache.org/jira/browse/FLINK-30093
             Project: Flink
          Issue Type: Bug
          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile), Table SQL / Ecosystem
    Affects Versions: 1.16.0
         Environment: Mac OS Ventura
            Reporter: James Mcguire
         Attachments: taskmanager_172.22.0 (1).4_46291-40eec2_log

I am encountering an issue when trying to use Flink SQL to query a Kafka topic that uses {{{}google.protobuf.Timestamp{}}}.

 

When attempting to use Flink SQL to query a protobuf serialized Kafka topic that uses  {{{}google.protobuf.Timestamp{}}}, a {{org.codehaus.commons.compiler.CompileException: Line 23, Column 5: Cannot determine simple type name "com" }}error occurs when trying to query the table.

 

*Replication steps:*

1. Use a protobuf definition that contains a {{{}google.protobuf.Timestamp{}}}:
{noformat}
syntax = "proto3";
package example.message;

import "google/protobuf/timestamp.proto";

option java_package = "com.example.message";
option java_multiple_files = true;

message Test {
  int64 id = 1;
  google.protobuf.Timestamp created_at = 5;
}{noformat}
2. Use protobuf definition to produce message to topic

3. Confirm message is deserializable by protoc:
{code:java}
kcat -C -t development.example.message -b localhost:9092 -o -1 -e -q -D "" | protoc --decode=example.message.Test --proto_path=/Users/jamesmcguire/repos/flink-proto-example/schemas/ example/message/test.proto 
id: 123
created_at {
  seconds: 456
  nanos: 789
}{code}
4. Create table in Flink SQL using kafka connector and protobuf format
{code:java}
CREATE TABLE tests (
  id BIGINT,
  created_at row<seconds BIGINT, nanos INT>
)
COMMENT ''
WITH (
  'connector' = 'kafka',
  'format' = 'protobuf',
  'protobuf.message-class-name' = 'com.example.message.Test',
  'properties.auto.offset.reset' = 'earliest',
  'properties.bootstrap.servers' = 'host.docker.internal:9092',
  'properties.group.id' = 'test-1',
  'topic' = 'development.example.message'
);{code}
5. Run query in Flink SQL and encounter error:
{code:java}
Flink SQL> select * from tests;
[ERROR] Could not execute SQL statement. Reason:
org.codehaus.commons.compiler.CompileException: Line 23, Column 5: Cannot determine simple type name "com" {code}
{*}NOTE{*}: If you repeat steps 4-5 without `created_at row<seconds BIGINT, nanos INT>` in the table, step 5 will complete successfully.

 



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