add master branch test case

* cherry pick from develop branch.

* fix conflict and reformat by autopep8.

ver-2.2.0.1: change version number

[TD-6635]<test>:modify python file about ts = 1600000**

Co-authored-by: NMinglei Jin <mljin@taosdata.com>

[TD-6633]<test>:modify python file

* cherry pick from develop branch.

* cherry pick 54813175

* [TD-5872]<fix>: taosdemo stmt csv perf improve.

* rand func back to early impl.

* fix windows/mac compile error.

* cherry pick from develop branch.

* merge with develop branch.

* rename MAX_SAMPLES_ONCE_FROM_FILE to reflect reality.

* split func for stmt interlace.

* fix bug that get build path.

* stmt batch interlace works.

* fix start time issue.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

[TS-337]<test>: add test case for interp function returns empty result

* [TD-3197]<fix>: taosdemo and taosdump coverity scan issues.

* exit if read sample file failed.

* fix converity scan issue.

* fix coverity scan issue.

* fix coverity scan memory leak.

* fix resource leak reported by coverity scan.

* fix taosdemo coverity scan issue.

* fix tcsetattr and getchar return value determination bug.

* fix coverity scan issue.

* fix two more coverity scan issues.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

merge from 2.0 into master

Fix/query

* fix confilct

* refactor code in springbootdemo

[TS-263]<fix>: make response of alter consistent with create and drop

[TD-6416]<fix>: fixed memory leak and crash bug