useless code in STMT demo

[TS-361]<fix>: fixed count of query was incorrect when 'like' was used

[TS-471]<fix>: fixed that queries in timezone with DST were incorrect

[TS-336]<fix>:don't need return -1,when update sql done

fix compilation on ubuntu 2110

[TD-10735]<fix>:use different cumsum type for signed/unsigned/double input type

Szhou/hotfix/td 10683

Feature/td 10708 regex match support for nchar

Fix/td 10399  fix error tips because of overflowing of convert time precision & invalidate tips in function of derivative

* [TD-10469]<feature>: use blm to replace httpd

* add blm3 as submodule and modify the install script.

* make http disabled by default.

* use external project for go build.

* make install and systemctl works.

* change blm3 to official repo.

* fix alert build missing sqlx package.

* update README regarding golang env setup.

* remove blm3.

* modify script to support blm3

* <test>udpate submodule in CI

* update jenkinsfile

* update blm3 with statsd port changed and config file name changed.

* still use tdengine's httpd for lite version.

* include blm.toml in released packages.

* merge with develop branch.

* update grafana plugin to support telegraf.

* fix python test framework

* fix blm3.toml name

* comment off restful test for blm3 CI.

* fix blm.toml name

* comment off http related case for blm3.

* fix cmake define.inc for windows build

* update grafanaplugin

* update blm3

* update grafana.

* update grafana plugin to support statsd.

* update blm3 to support lower version go.

* update grafanaplugin and blm3 bugfix.

* update grafana plugin, dashboard name changed.

update blm3 for cinterface error code.

* disable blm3 in arm32

* support blm3 --version

* change cmake minimum version requirement from 2.8 to 3.0

* pull latest blm3 c67fcc11bc5e82e3d7aea8db855a8cbf8b109239

* update blm3 to 2021/10/22.

* support BUILD_HTTP false.

* fix one line in post.sh
Co-authored-by: Nliuyq-617 <yqliu@taosdata.com>

Fixed issue where wasNull=true could not be assigned because the previous value wasNull

fix Windows compile

<fix> fix the case runtime:1000000 -> 10000

Fixed: gramma, lines 95 & 259

[TD-10770]<fix>: fix python connector tests and examples error in case of new schemaless api (#8458)

* [TD-10770]<fix>: fix python connector tests and examples error in case of new schemaless api

* [TD-5892]<fix>: update python connector version to 2.1.1

use httpd by default.

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

* [TD-3197] <fix>: fix taosdemo coverity scan issue.

fix subscribeTest pids uninitialized.

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

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

check super tbl info pointer.

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

move sub tbl query thread join into loop

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

remove unused variable

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

use more secure random library

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

use strncpy for more safe

* [TD-3197] <fix>: fix taosdemo coverity scan issue.

replace arc4random with rand().

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

check stb info pointer for start time

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

fix strcpy vulnerability

* [TD-3197] <fix>: fix taosdemo coverity scan issue.

modify taosdemoTest2. try to check database continously.

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

* [TD-3197] <fix>: fix memory leak when parsing arguments.

* [TD-3197] <fix>: fix cmake strip arguments.

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

fix cmake string manipulation.

* [TD-3197]<fix>: taosdemo coverity scan issue.

configDir buffer overwrite.

* [TD-3197]<fix>: coverity scan issue.

taosdump argument validation.

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

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

append result buf to file. for develop branch.

* 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.

* fix stmt batch coverity scan issue.

* change to portable format.

* delete tests/examples/c/'-g' file

* fix example compile error.

* fix coverity scan issue

* fix taosdemo coverity scan issue.

* fix taosdemo test case for restful query

* make initOfQueryMeta() back to solve restful issue.

* fix test case keep 36 days.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

[TD-10700]<enhance>: The escape char backstick can be used for both tag name and column name

[schemaless] removed line protocol timestamp appendix

Schemaless bug fixes