* [TD-11517]<test>: add test case for python connector

* [TD-11634]<fix>: make tests and examples code compatible with python2

* [TD-11517]<test>: fix error in python examples test case

* [TD-11958]<test>: fix CI error for C# taosdemo test case

* chore: no changes for go connector

* chore: fix C# taosdemo binary path

* [TD-10522]<feature>:csharp support stmt

* submit twice

* add fetchfeild test case

* fix singlebind error in linux

* delete extra writeline

* [TD-11616]<fix>: remove grafana plugin submodule

* rename grafanaplugin/README.md

* temprory modify Jenkinsfile

* adjust pos to remove file.

* [TD-11431]<feature>:c# connector publish and example fix

* update c# connector manual since connector publish to nuget

* fix doc,remove <feff>

* [TD-10842]<feature>:nodejs support schemaless

* [TD-10842]<fix>: fix nodejs connector schemaless API error

* [TD-10842]<feature>:nodejs support schemaless

* fix require mistake

* fix code style constant.js
Co-authored-by: NHuo Linhe <linhehuo@gmail.com>

to get length to parse block data

* [TD-10828]<fix>: fix PyPI taospy connector failed for master branch

* chore: fix pip install document

* chore: fix CI error

* [TS-498]<test>: add a test case for HttpClientPoolUtil

* [TS-498]<fix>: fixed 'no sql input' bug

* throw exception when httpEntity is null

* [TS-498]<fix>: change taosd keepAlive to 30s
Co-authored-by: Nxywang <xywang@taosdata.com>

* [TD-10751]<feature>:jdbc support schemaless input

* add schemaless test case

* [TS-498]<test>: add a test case for HttpClientPoolUtil

* [TS-498]<fix>: fixed 'no sql input' bug

* throw exception when httpEntity is null

* [TS-498]<fix>: alter Keep Alive Time in RESTful pool
Co-authored-by: Nxywang <xywang@taosdata.com>

* [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

* blm3 support opentsdb telenet protocol.

* update grafana plugin to 3.1.1

* revert grafanaplugin

* fix grafanaplugin submodule url issue.
Co-authored-by: Nliuyq-617 <yqliu@taosdata.com>

* [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

* blm3 support opentsdb telenet protocol.

* update grafana plugin to 3.1.1
Co-authored-by: Nliuyq-617 <yqliu@taosdata.com>

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

[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

* [TS-336]<fix>:fix sql execute error in idea.but insert sql still don't work correctly

* [TS-336]<fix>:fix insert sql execute error in idea