[fix] In the higher version of mysql-connector-java 8x, there is an error in the value of db.instance.

[lvxiao1]

Starting from MySQL 8.0.20, the databaseTerm feature allows you to use the setCatalog and setSchema methods to switch databases

The code is from 8.0.20 ConnectionImpl

• In the higher version of mysql-connector-java8x, there is an error in the value of db.instance.

[wu-sheng]

Could you update the changes.md in the root?

[lvxiao1]

updated changes.md

[wu-sheng]

Error: Failed to execute goal on project clickhouse-0.3.x-scenario: Could not resolve dependencies for project org.apache.skywalking.apm.testcase:clickhouse-0.3.x-scenario:jar:1.0.0: Failed to collect dependencies at ru.yandex.clickhouse:clickhouse-jdbc:jar:0.3.0 -> com.github.RoaringBitmap:RoaringBitmap:jar:0.9.9 -> com.github.RoaringBitmap.RoaringBitmap:RoaringBitmap:jar:0.9.9: Failed to read artifact descriptor for com.github.RoaringBitmap.RoaringBitmap:RoaringBitmap:jar:0.9.9: Could not transfer artifact com.github.RoaringBitmap.RoaringBitmap:RoaringBitmap:pom:0.9.9 from/to jitpack.io (https://jitpack.io/): Failed to transfer file https://jitpack.io/com/github/RoaringBitmap/RoaringBitmap/RoaringBitmap/0.9.9/RoaringBitmap-0.9.9.pom with status code 521 -> [Help 1]
Error:

It seems we face some CI env issues. We can't download the ck driver for now.