Release Notes From: release/ver-2.0.20.13 To: release/ver-2.0.20.16

FIX BUGS: [TD-6264]:backport _block_dist() from 2.1 to 2.0 to fix core dump due to tbuf length limitation [TD-5852]: taosdemo data generation race. (#7708) [TD-6164]: fix deadlock with fopen's malloc [TD-6011]: where clause including 'bool' Keyword causes core dump [TD-6086]:add test case [TD-6086]:num of tags taken from output cols instead of groupby expr [TD-6054]: Filtered by tag with nchar value not as expected

ENHANCEMENTS: [TD-6165]: use memcpy to replace wcsncmp for nchar type comparision

NEW FEATURES:

DOCS:

TEST: [TD-6314]:add test case for _block_dist() [TD-6234]: add unit test case for TD-6011

Test CI Result：