[TD-1529]<fix>: use cache in subscribe & prepare

Update insert-ch.md

Release/s102

Release/s102

[td-225] fix bugs in regression test.

[td-225] fix bugs in regression test.

[TD-1529]<fix>: CQ create db connection async

[td-225] fix bugs in regression test.

and also fix failed test cases related to stream.

[td-225] fix bugs in regression test.

and also fix failed test cases related to stream.

Merge from develop into release/s102

Feature/http

Update cluster-ch.md

update TAOS SQL

Update cluster-ch.md

Update architecture-ch.md

Update cluster-ch.md

[TD-1245]<test> add test case for interval

Update cluster-ch.md

Feature/query