kafka jdbc source connector error in query mode [duplicate] - postgresql

Question

This question already has an answer here:
How to add explicit WHERE clause in Kafka Connect JDBC Source connector
(1 answer)
Closed 3 years ago.
I have a JDBCSourceConnector in kafka that uses a query to stream data from database.
but I have problem with the query I wrote for selecting data.
I tested query in Postgres psql and also in DBeaver. It's working fine but in kafka config, it produces an SQL syntax error
Error
ERROR Failed to run query for table TimestampIncrementingTableQuerier{name='null', query='select "Users".* from "Users" join "SchoolUserPivots" on "Users".id = "SchoolUserPivots".user_id where school_id = 1 and role_id = 2', topicPrefix='teacher', timestampColumn='"Users".updatedAt', incrementingColumn='id'}: {} (io.confluent.connect.jdbc.source.JdbcSourceTask:221)
org.postgresql.util.PSQLException: ERROR: syntax error at or near "WHERE"
Config json
{
"connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector",
"timestamp.column.name": "\"Users\".updatedAt",
"incrementing.column.name": "id",
"connection.password": "123",
"tasks.max": "1",
"query": "select \"Users\".* from \"Users\" join \"SchoolUserPivots\" on \"Users\".id = \"SchoolUserPivots\".user_id where school_id = 1 and role_id = 2",
"timestamp.delay.interval.ms": "5000",
"mode": "timestamp+incrementing",
"topic.prefix": "teacher",
"connection.user": "user",
"name": "SourceTeacher",
"connection.url": "jdbc:postgresql://ip:5432/school",
"value.converter": "org.apache.kafka.connect.json.JsonConverter",
"key.converter": "org.apache.kafka.connect.json.JsonConverter"
}

Answer 1

You can't use "mode": "timestamp+incrementing", with a custom query that includes WHERE.
See https://www.confluent.io/blog/kafka-connect-deep-dive-jdbc-source-connector for more details, as well as https://github.com/confluentinc/kafka-connect-jdbc/issues/566. That github issue suggests one workaround, by using a subselect for your query.