Tudor-Alexandru Voicu created KAFKA-8867:
--------------------------------------------
Summary: Kafka Connect JDBC fails to create PostgreSQL table with
default boolean value
Key: KAFKA-8867
URL: https://issues.apache.org/jira/browse/KAFKA-8867
Project: Kafka
Issue Type: Bug
Components: KafkaConnect
Affects Versions: 2.3.0
Reporter: Tudor-Alexandru Voicu
The `CREATE TABLE ..` statement generated for sink connectors when configured
with `auto.table.create=true` generates field declarations that do not conform
to allowed PostgreSQL syntax when considering fields of type boolean with
default values:
Example of source message values Avro schema for input topic:
{code:java}
{
"namespace": "com.test.avro.schema.v1",
"type": "record",
"name": "SomeEvent",
"fields": [
{
"name": "boolean_field",
"type": "boolean",
"default": false
}
]
}
{code}
The connector task fails with:
{code:java}
ERROR WorkerSinkTask{id=test-events-sink-0} RetriableException from SinkTask:
(org.apache.kafka.connect.runtime.WorkerSinkTask:551)
org.apache.kafka.connect.errors.RetriableException: java.sql.SQLException:
org.postgresql.util.PSQLException: ERROR: column "boolean_field" is of type
boolean but default expression is of type integer
Hint: You will need to rewrite or cast the expression.
at io.confluent.connect.jdbc.sink.JdbcSinkTask.put(JdbcSinkTask.java:93)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:538)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:321)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:224)
at
org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:192)
at
org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:175)
at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:219)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748){code}
The generated SQL statement is:
{code:java}
CREATE TABLE "test_data" ("boolean_field" BOOLEAN DEFAULT 0){code}
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