How does mysqlbinlog incrementally back up a specified database instance?

I have created several database, in the mysql database, such as db1 and db2, to check the usage of mysqlbinlog. It seems that the scope of action is for the whole database, that is, the logs of db1 and db2 are stored together.

is there a way to do incremental backups only for db1?

Feb.11,2022

mysqlbinlog-- database=db1
mysqlbinlog-d db1
https://dev.mysql.com/doc/ref.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e47add-44c57.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e47add-44c57.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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