Add bitmapContains

Fix complex bug in deduplication

Doc fix: small fix in lambda

Fix float to decimal convert overflow

SQL Fix for converting to denormalized "flat schema":

In current stable ( 19.8.3.8) multi - join does not support [select *]

Check for namespace comments in "check-style" tool

find dbms -name '*.h' -or -name '*.cpp' | xargs grep -l -P '}\s*//+\s*namespace\s*' | xargs sed -i -r -e 's/}\s*\/\/+\s*namespace\s*.*$/}/'

find dbms -name '*.h' -or -name '*.cpp' | xargs grep -l -P '}\s*//+\s*namespace\s*' | xargs sed -i -r -e 's/}\s*\/\/+\s*namespace\s*\w+/}/'

Support more AlterType in distribute DDL

CLICKHOUSE-4179 Fix of function arrayEnumerateUniqRanked for arguments with empty arrays

(closest ones do not have sign up pages yet)

Fix some weird cases in Searchers

Clearer interfaces of Searchers

DOCAPI-3856: Removed the phrase about limited usage of tuples in tables.

Fix Settings.h URL in docs

Added documentation of constraints on settings.