table, infoschema, executor: fix Charset/Collation shown in column(pi…

…ngcap#10007) (pingcap#10114)

CHANGELOG: add release notes for v2.1.7 (pingcap#9916)

test: open coverpkg for coverrage, speed up the test, calculate more …

…folder. (pingcap#9725)

CHANGELOG: add release notes for v2.1.6 (pingcap#9747)

CHANGELOG: add changelog for v2.1.5 (pingcap#9501)

changelog: add release note v2.1.4 (pingcap#9312)

CHANGELOG: add release notes for v2.1.3 (pingcap#9174)

*: add release note 3.0.0-beta to CHANGLOG.md (pingcap#9117)

rebase release-2.0 to release-2.0-binlog (pingcap#8928)

CHANGELOG: add changelog for v2.0.11 (pingcap#8925)