   seq_region_id int,
   seq_region_strand tinyint,
 
-	primary key( flanking_sequence_variation_id )
+  primary key( variation_id )
 
 ) MAX_ROWS = 100000000;
 

  father_individual_sample_id int,
  mother_individual_sample_id int,
  
  primary key(individual_sample_id)
);



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

	primary key( sample_id )
);


