After data revision, you can review the data again based on the check results.

The check results serve as a guide for specifying the rows/scope to be reviewed, and you still need to get the current data for each row from the source database, to compare it with the target.

Example: MySQL -> MySQL

Refer to task templates and tutorial

Note

While this configuration is similar to that of snapshot migration, the only differences are:

[extractor]
extract_type=check_log
check_log_dir=./dt-tests/tests/mysql_to_mysql/revise/basic_test/check_log

[checker]
enable=true
db_type=mysql
url=mysql://user:pass@host:3306/db

[parallelizer]
parallel_type=rdb_merge

Other configurations

• For [router], refer to config details.
• Refer to task_config.ini in tests:
  • dt-tests/tests/mysql_to_mysql/review
  • dt-tests/tests/pg_to_pg/review
  • dt-tests/tests/mongo_to_mongo/review