Hacking PostgreSQL

Final Code

PostgreSQL Subsystems

Hacking the PostgreSQL Way

From an Idea..

Parser Changes

Command Code Changes

COPY productions

These are the other COPY productions

copy_from:
FROM { $$ = true; }
| TO { $$ = false; }
;

opt_program:
PROGRAM { $$ = true; }
| /EMPTY/ { $$ = false; }
;
...
copy_file_name:
Sconst { $$ = $1; }
| STDIN { $$ = NULL; }
| STDOUT { $$ = NULL; }
;

copy_options: copy_opt_list { $$ = $1; }
| '(' copy_generic_opt_list ')' { $$ = $2; }
;
...