How to use the useBulkCopyForBatchInsert on the JdbcSinkConnector?

[hyunje.lee]

I’m trying to bulk insert to the mssql db table by adding “useBulkCopyForBatchInsert=true” to the connection.url option of Jdbcsinkconnector as below.

"connection.url": "jdbc:sqlserver://ip:1433;database=****;useBulkCopyForBatchInsert=true"

But data is not being inserted using bulk insert.
I will attach the connect log and reference document.

• Using bulk copy API for batch insert operation
  Bulk copy API for batch insert in JDBC - JDBC Driver for SQL Server | Microsoft Docs

• Connect Log

[2022-07-18 16:46:32,224] INFO JdbcSinkConfig values:
	auto.create = false
	auto.evolve = false
	batch.size = 3000
	connection.attempts = 3
	connection.backoff.ms = 10000
	connection.password = [hidden]
	connection.url = jdbc:sqlserver://***.**.***.**:1433;database=****;useBulkCopyForBatchInsert=true
	connection.user = ****
	db.timezone = Asia/Seoul
	delete.enabled = false
	dialect.name =
	fields.whitelist = []
	insert.mode = insert
	max.retries = 10
	pk.fields = []
	pk.mode = none
	quote.sql.identifiers = ALWAYS
	retry.backoff.ms = 3000
	table.name.format = ****
	table.types = [TABLE]
 (io.confluent.connect.jdbc.sink.JdbcSinkConfig:361)