Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Ignored
pages	0	PRIMARY	1	id	A	57078	NULL	NULL		BTREE			NO
pages	1	book_id	1	book_id	A	57078	NULL	NULL		BTREE			NO