primary key (REV, polytomousKey_id, taxon_id)
);
+ create table PolytomousKey_TaxonBase (
+ polytomousKey_id integer not null,
+ coveredtaxa_id integer not null,
+ primary key (polytomousKey_id, coveredtaxa_id)
+ );
+
+ create table PolytomousKey_TaxonBase_AUD (
+ REV integer not null,
+ polytomousKey_id integer not null,
+ coveredtaxa_id integer not null,
+ revtype tinyint,
+ primary key (REV, polytomousKey_id, coveredtaxa_id)
+ );
+
create table PolytomousKeyNode (
id integer not null,