   father_individual_sample_id int,
   mother_individual_sample_id int,
   
-  primary key(individual_sample_id)
+  primary key(sample_id)
 );
 
 

	sample_id int not null,
	is_strain int(1) default 0 NOT NULL,

	primary key( population_sample_id )
);



  seq_region_id int,
  seq_region_strand tinyint,

  primary key( variation_id )

) MAX_ROWS = 100000000;

