sql_exp *
exps_bind_column2( list *exps, char *rname, char *cname )
{
if (exps) {
node *en;
if (exps && !exps->ht && list_length(exps) > HASH_MIN_SIZE) {
exps->ht = hash_new(exps->sa, list_length(exps), (fkeyvalue)&exp_key);
for (en = exps->h; en; en = en->next ) {
sql_exp *e = en->data;
if (e->name) {
int key = exp_key(e);
hash_add(exps->ht, key, e);
}
}
}
if (exps && exps->ht) {
int key = hash_key(cname);
sql_hash_e *he = exps->ht->buckets[key&(exps->ht->size-1)];
for (; he; he = he->chain) {
sql_exp *e = he->value;
if (e && is_column(e->type) && e->name && e->rname && strcmp(e->name, cname) == 0 && strcmp(e->rname, rname) == 0)
return e;
if (e && e->type == e_column && e->name && !e->rname && e->l && strcmp(e->name, cname) == 0 && strcmp(e->l, rname) == 0)
return e;
}
return NULL;
}
for (en = exps->h; en; en = en->next ) {
sql_exp *e = en->data;
if (e && is_column(e->type) && e->name && e->rname && strcmp(e->name, cname) == 0 && strcmp(e->rname, rname) == 0)
return e;
if (e && e->type == e_column && e->name && !e->rname && e->l && strcmp(e->name, cname) == 0 && strcmp(e->l, rname) == 0)
return e;
if (e && e->type == e_column && !e->name && !e->rname && e->l && e->r && strcmp(e->r, cname) == 0 && strcmp(e->l, rname) == 0) {
assert(0);
return e;
}
}
}
return NULL;
}
int add_to_list(t_list **list, int i, int j, char **tab)
{
t_list *elem;
int nbr;
int pos;
if ((elem = malloc(sizeof(t_list))) == NULL)
return (-1);
elem->i = i;
elem->j = j;
nbr = 0;
pos = 0;
while (++nbr < 10)
if (is_line(tab, i, (nbr + '0')) == 0 &&
is_column(tab, j, (nbr + '0')) == 0 &&
is_block(tab, i, j, (nbr + '0')) == 0)
++pos;
elem->possibilities = pos;
elem->next = *list;
*list = elem;
return (0);
}
bool is_column(const std::string& column_name) const
{
return is_column(column_name, typeid(T));
}
