func (db *MDB) TableOpen(tableName string) (*MDBTableDef, error) {
var entry *C.MdbCatalogEntry
var col *C.MdbColumn
tableDef := &MDBTableDef{}
rv := C.mdb_read_catalog(db.mdb, C.MDB_TABLE)
if rv == nil {
return nil, errors.New("mdb: error reading table catalog")
}
for i := 0; i < int(db.mdb.num_catalog); i++ {
entry = C._go_ptr_catalog(db.mdb.catalog, C.guint(i))
name := C.GoString(&entry.object_name[0])
if name == tableName {
tableDef.table = C.mdb_read_table(entry)
if tableDef.table == nil {
return nil, errors.New("mdb: error reading table")
}
tableDef.num_cols = int(tableDef.table.num_cols)
C.mdb_read_columns(tableDef.table)
C.mdb_read_indices(tableDef.table)
C.mdb_rewind_table(tableDef.table)
tableDef.column_names = make([]string, tableDef.num_cols)
tableDef.bound_values = make([][]byte, tableDef.num_cols)
tableDef.bound_lengths = make([]int, tableDef.num_cols)
for j := 0; j < tableDef.num_cols; j++ {
col = C._go_ptr_col(tableDef.table.columns, C.guint(j))
colName := C.GoString(&col.name[0])
tableDef.column_names[j] = colName
tableDef.bound_values[j] = make([]byte, C.MDB_BIND_SIZE)
C.mdb_bind_column(tableDef.table, C.int(j+1), unsafe.Pointer(&tableDef.bound_values[j][0]), (*C.int)(unsafe.Pointer(&tableDef.bound_lengths[j])))
}
}
}
return tableDef, nil
}
func (db *MDB) TableFields(tableDef *MDBTableDef) (map[string]MDBColumn, error) {
var col *C.MdbColumn
columns := make(map[string]MDBColumn)
for j := 0; j < tableDef.num_cols; j++ {
col = C._go_ptr_col(tableDef.table.columns, C.guint(j))
columns[C.GoString(&col.name[0])] = MDBColumn{
C.GoString(&col.name[0]),
int(col.col_type),
int(col.col_size),
int(col.col_prec),
int(col.col_scale),
bool(int(col.is_fixed) == 1),
}
}
return columns, nil
// return int(tableDef.table.num_rows), nil
}