Merge pull request databendlabs#1016 from PsiACE/restore-key

[ci] restroe friendly

Merge pull request databendlabs#1013 from PsiACE/gcov

[ci] fix gcov install failed

Merge pull request databendlabs#995 from PsiACE/docs

[docs] add default host & port for clickhouse cli

Merge pull request databendlabs#960 from TennyZhuang/statistics-exact

[optimizer][CBO] count(*) with table statistics

Merge pull request databendlabs#979 from zhyass/master

fix rls component error

Merge pull request databendlabs#975 from PsiACE/siphash64

[function] siphash64

Merge pull request databendlabs#959 from dantengsky/refactoring-depen…

…dencies

refactoring(store): store no longer depends on  common-store-api directly

Merge pull request databendlabs#932 from drmingdrmer/log-entry-and-ap…

…plied-state

[store] refactor terms

Merge pull request databendlabs#937 from BohuTANG/doc-rfc-name

ISSUE-936: rename RFC name

Merge pull request databendlabs#927 from drmingdrmer/merge-meta-and-s…

…tate-machine

[store] refactor: merge Meta into StateMachine