* merge with develop branch.

change query/tests/CMakeLists.txt to allow unused function and variable.

* refactor data generating.

* refactor.

* refactor.

* refactor.

* refactor.

* refactor

* add prepare stmt function.

* refactor get rand timestamp.

* fix windows compile error.

* copy logic of generate data for stmt.

* insert data basically works now.

* fix windows compile issue.

* [TD-4068]<feature>: taosdemo stmt interface.

stb batch insert works.

* [TD-4068]<feature>: taosdemo support stmt.

normal table insert works.

* [TD-4068]<feature>: taosdemo support stmt.

interlace write works.

* add compile macro to make taosdemo same with master branch.

* fix clang compile error.

* fix memory leak.

* add more macro.

* fix rest segfault.

* add stmt_errstr() for reason print.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

[TD-4432]<test>: add taodemo-testcase that using stmt interface

Docs/update latest feature

open taosdemo-testcase

modify release scripts

* [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.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

[TD-5478]<fix>:modify tag value of existing child table in line protocol processing

* [TD-5479]<fix>: taosdump -S -E does not work.

* taosdemo support timestamp step from command line.

* fix help msg.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

Feature/query

[TD-5474]<fix> fix runtime error

[TD-5507]fix no table meta issue

[TD-5484]<fix>:tag nchar/binary length exceed limit error when alter table add tag

[TD-5485]<fix>:fix memory error due to uninitialized pointer value

[TD-848] <docs>: fix description about SPREAD return type.

[TD-5471] <docs>: fix description about parameter of STATE window.

* [TD-5489]<fix>: use jdbc specified version number in cmake/CMakeList.txt and src/connector/jdbc/CMakeList.txt

* change version number in deploy-pom.xml

[TD-5237]<feature>:add additional info for "show queries" output