usql update

usql/Readme.md

@@ -1,15 +1,15 @@
 ### TODO
+- set xxx - without value to reset to default value
 - escape " in save csv
 - 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 order by, offset, limit (allow column name in order by, validate)
 - support for uniqueue indexes (primary key)
 - support for btree indexes
 - support for joining
-- add count min and max functions, eg aggregate functions
 
 - use string_to_double and string_to_long (from Table) everywhere
 - add const wherever should be