68a7d5553fa4cef09e0159ac5e100a6424172386,src/metamodels/crosscat.py,CrosscatMetamodel,create_generator,#CrosscatMetamodel#Any#Any#Any#Any#,500

Before Change

                k = do_subsample
                sql = "SELECT _rowid_ FROM %s ORDER BY _rowid_ ASC" % (qt,)
                cursor = bdb.sql_execute(sql)
                rowids = [row[0] for row in cursor]
                n = len(rowids)
                seed = struct.pack("<QQQQ", 0, 0, k, n)
                uniform = weakprng.weakprng(seed).weakrandom_uniform
                randomly_permute(rowids, uniform)
                rowids = rowids[:k]
                cursor = ((rowid,) for rowid in rowids)
            else:
                cursor = bdb.sql_execute("""
                     SELECT _rowid_ FROM %s ORDER BY _rowid_ ASC
                """ % (qt,))

After Change

                k = do_subsample
                sql = "SELECT COUNT(*) FROM %s" % (qt,)
                cursor = bdb.sql_execute(sql)
                n = cursor.next()[0]
                sql = "SELECT _rowid_ FROM %s ORDER BY _rowid_ ASC" % (qt,)
                cursor = bdb.sql_execute(sql)
                seed = struct.pack("<QQQQ", 0, 0, k, n)
                uniform = weakprng.weakprng(seed).weakrandom_uniform

Instances