[TD-4663]<test>: add test case for derivative function

Feature/m2d

[TD-4694]merge tsdbCompactImpl to community version

hotfix/TD-4675

[TD-3229] <docs>: remove link to empty docs.

Update docs.md

Update docs.md

update index.md

update title of cluster.md

Update docs.md

Update docs.md

Update architecture.md

update administrator.md

Update docs.md

Update docs.md

Update docs.md

Update docs.md

Add files via upload

Update docs.md

update connector.md

update model.md

add 03.architecture

Update taos-sql.md

Docs/update latest feature

[TD-i4610]<add special character show>

Update docs.md

Update docs.md

Update insert.md

[TD-4473] update alter keep test