faster csv loading

Readme.md

@@ -1,14 +1,14 @@
 
 ### TODO
-- date functions - now, add_date...
-- string functions rtrim, ltrim, rpad, lpad
-- round function
+- coalesce, date functions now, add_date; string functions rtrim, ltrim, rpad, lpad; math function round
 - add pipe | concatenation
+
 - support for order by, offset, limit (allow column name in order by, validate)
-- command line interface
 - support for uniqueue indexes (primary key)
 - support for btree indexes
+- support for joining
 - add count min and max functions, eg aggregate functions
+
 - add const wherever should be
 - PERF in Row::Row(const Row &other), could be more efficient (memory and cpu)
-- use references where pointer cannot be nullptr
+- use references where pointer cannot be nullptr