Merge branch 'master' of http://gitea.stocksriddle.one/vaclavt/usql

Readme.md

@@ -5,18 +5,12 @@ compare in row.cpp shoud take into account m_visible
 - create local_install.sh
 
 - set xxx - without value to reset to default value
-- escape " in save csv
+- coalesce, date functions now; string functions rtrim, ltrim, rpad, lpad; math function round
-- is null | is not null
-- coalesce, date functions now, add_date; string functions rtrim, ltrim, rpad, lpad; math function round
 - add pipe | concatenation
 - add support for 1_000_000 numbers
 - expand_asterix_char should support multiple and everywhere *
 
+- support for reusing space of deleted rows
 - support for uniqueue indexes (primary key)
-- support for indexes
 - add drop m_index
 - support for joining
-
-- add const wherever should be
-- use static methods where posible
-- use references where pointer cannot be nullptr