* [TD-3973]<feature>: add jemalloc as submodule.

* add macro definitions in cmake.

* [TD-3973]<feature>: use jemalloc.

build works as following instructions:

cmake .. -DJEMALLOC_ENABLED=true

make

* fix jemalloc at tag 5.2.1

* link jemalloc works.

* make install works.

* support jemalloc in release.sh.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

fix compile issue

* [TD-4353]<fix>: taosdemo resub if resubAfterConsume != -1

* fix but resubafter use endafter section.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-4353]<fix>: taosdemo resub if resubAfterConsume != -1

* fix but resubafter use endafter section.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

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

for easy merge purpose. disabled in master.

* fix clang compile error.

* fix memory leak, add more macros. change sqlcount to int

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

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

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

for easy merge purpose. disabled in master.

* fix clang compile error.

* fix memory leak, add more macros. change sqlcount to int
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

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

* [TD-4406]<fix>: taosdemo auto create table.

* fix child table exists or auto create logic.

* reduce redundant conditions.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

[TD-4243]<enhance>: block_dist percentile approximation to reduce memory usage especially for super table