added expression executor prototype

fixed: comparison operator info has been incorrectly written to type field

expression compiler generates byte code

added where clause compiler prototype

secured malloc / calloc calls

fixed statement type for logical expressions without operator + prepared OOM handling

implemented order by parser

added initial code for config commands

fixed paranthsis ambiguity for logical and normal expressions

fixed null pointer access on end of token stream by adding a special END token to the stream

(0) -100 -10 +10 +100 +300 tip

mercurial