Function find_table

sqladvisor/main.cc:610–622

}

TABLE_LIST * find_table(const char *table_name) {
    SQL_I_List<TABLE_LIST> table_list = current_lex->table_list;
    TABLE_LIST *table = table_list.first;
    while (table != NULL) {
	if (is_not_tmp_table(table)){
	    if (strcasecmp(table->table_name, table_name) == 0 || strcasecmp(table->alias, table_name) == 0) {
		return table;
	    }
	}
        table = table->next_local;
    }
    return NULL;
}

//增加这个函数的目的是因为有的时候field本身table_name的值为空,一般这种情况为where column xxx ,而table_name不为空的情况则是where tbname.column xxxxx
TABLE_LIST * find_table(Item_field * field) {