.pgc      *      *----------------------------------------------------------------      */     #include <stdio.h>     #include <sys/types.h>     #include <stdio.h>      EXEC SQL BEGIN DECLARE SECTION;       char target[] = "unix:postgresql://localhost:0000/postgres";       int id;       char name[000];     EXEC SQL END DECLARE SECTION;      int main(int argc, char **argv)     {       EXEC SQL CONNECT TO :target AS connection_unix USER postgres;       /* Drop table */       EXEC SQL DROP TABLE IF EXISTS foo;       /* Create table foo */       EXEC SQL CREATE TABLE foo (id INTEGER, name TEXT);       /* Insert 