* fix missed function.

* add function declaration back for random fail test.

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

modify smoketest.sh to python3.8

* [TD-4025]<fix>: travis ci broken due to ubuntu 20.04 repo issue.

* [TD-4025]<fix>: travis ci broken due to ubuntu 20.04 repo issue.

* [TD-4025]<fix>: travis ci broken due to ubuntu 20.04 repo issue.

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

change focal to bionic.

* [TD-4025]<fix>: travis ci broken due to ubuntu 20.04 repo issue.

cherry pick from master.

* don't check maven on windows for appveyor.

* fix timezone build error with clang/linux.

* add .appveyor.yml back.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

change focal to bionic.

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

install python3.8

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

install python3.8 and pip, setuptools

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

install python3.8, and install pip and setuptools

* [TD-4025]<fix>: travis ci broken due to valgrind dependency missed.

modify smoketest.sh to python3.8

* fix timezone build error with clang/linux.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [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>

* [TD-3913]<fix>: mips compile support.

* [TD-3912]<fix>: support mips64 compile.

add mips64 header file and modify tcrc32c.c for mips64.

* [TD-3913]<fix>: mips compile support.

verified on real loongson machine.

* fix cmake.

* fix gcc 4.8 compile error.

* fix clang compile error.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-3913]<fix>: mips compile support.

* [TD-3913]<fix>: mips64 support.

* fix osSignal.c

* fix tcrc32c.c

* fix cmake.

* fix osInc.h

* fix gcc 4.8 compile error.

* fix clang compile error.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-4313]<fix>: odbc example compile failed on Windows.

* [TD-4313]<fix>: odbc example compile failed on Windows.

few functions also need change.

* 修复windows下vscode调试go程序名无后缀的情况导致程序crash

* 修复windows下vscode调试go程序时临时程序_debug_bin无后缀的情况，导致调用接口发生crash

* 修复由于头文件排序导致编译错误

* [TD-3913]<fix>: mips compile support.

* [TD-3913]<fix>: mips64 support.

* fix osSignal.c

* fix tcrc32c.c

* fix cmake.

* fix osInc.h

* fix gcc 4.8 compile error.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-3913]<fix>: mips compile support.

* [TD-3912]<fix>: support mips64 compile.

add mips64 header file and modify tcrc32c.c for mips64.

* [TD-3913]<fix>: mips compile support.

verified on real loongson machine.

* fix cmake.

* fix gcc 4.8 compile error.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-3913]<fix>: mips compile support.

* [TD-3912]<fix>: support mips64 compile.

add mips64 header file and modify tcrc32c.c for mips64.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>