taxonepithet text,

    CONSTRAINT taxonconcept_required_key CHECK (((((((sourceaccessioncode IS NOT NULL) OR (taxonepithet IS NOT NULL)) OR (identifyingtaxonomicname IS NOT NULL)) OR (taxonomicname IS NOT NULL)) OR (taxonomicnamewithauthor IS NOT NULL)) OR ((parent_id IS NOT NULL) AND ((creationdate IS NOT NULL) OR (author IS NOT NULL)))))

Note that taxonepithet stores only one rank (e.g. family) of the full taxonomic name. The higher-level ranks are stored in the taxon concept''s chain of parent_id ancestors.

-- Name: COLUMN taxonconcept.taxonepithet; Type: COMMENT; Schema: public; Owner: -

COMMENT ON COLUMN taxonconcept.taxonepithet IS 'The epithet of the taxon within its parent taxon. This is the lowest-rank portion of this taxonconcept''s full taxonomic name, if it has one.

    SELECT datasource.organizationname AS "dataSourceName", accepted_taxonconcept.family, accepted_taxonconcept.genus, accepted_taxonconcept.species, COALESCE(accepted_taxonconcept.taxonomicnamewithauthor, accepted_taxonconcept.taxonomicname) AS taxon, accepted_taxonconcept.author AS "taxonAuthor", accepted_taxonconcept.taxonepithet AS "taxonMorphospecies", placepath.country, placepath.stateprovince AS "stateProvince", placepath.county AS "countyParish", taxonoccurrence.verbatimcollectorname AS collector, plantobservation.collectionnumber AS "collectionNumber", array_to_string(ARRAY[identifiedby.givenname, identifiedby.middlename, identifiedby.surname], ' '::text) AS "identifiedBy", aggregateoccurrence.collectiondate AS "observationDate", location.authorlocationcode AS "plotCode", functions._m2_to_ha(location.area_m2) AS "plotAreaHa", method.name AS "plotMethod", locationcoords.latitude_deg AS latitude, locationcoords.longitude_deg AS longitude, location.elevation_m, taxonoccurrence.iscultivated AS "isCultivated", taxonoccurrence.cultivatedbasis AS "isCultivatedReason", _fraction_to_percent(aggregateoccurrence.cover_fraction) AS "pctCover" FROM ((((((((((((((location JOIN party datasource ON (((datasource.party_id = location.creator_id) AND (datasource.organizationname IS NOT NULL)))) LEFT JOIN locationcoords USING (location_id)) LEFT JOIN locationplace USING (location_id)) LEFT JOIN placepath USING (placepath_id)) JOIN locationevent USING (location_id)) LEFT JOIN method USING (method_id)) JOIN taxonoccurrence USING (locationevent_id)) JOIN taxondetermination USING (taxonoccurrence_id)) LEFT JOIN party identifiedby ON ((identifiedby.party_id = taxondetermination.party_id))) JOIN taxonconcept datasource_taxonconcept USING (taxonconcept_id)) JOIN taxonconcept accepted_taxonconcept ON ((accepted_taxonconcept.taxonconcept_id = datasource_taxonconcept.accepted_concept_id))) LEFT JOIN aggregateoccurrence USING (taxonoccurrence_id)) LEFT JOIN plantobservation USING (aggregateoccurrence_id)) LEFT JOIN specimenreplicate USING (plantobservation_id));

CREATE UNIQUE INDEX taxonconcept_unique ON taxonconcept USING btree ((COALESCE(parent_id, 2147483647)), (COALESCE(taxonepithet, '\\N'::text)), (COALESCE(rank, 'unknown'::taxonrank)), creator_id, (COALESCE(sourceaccessioncode, '\\N'::text)), (COALESCE(creationdate, 'infinity'::date)), (COALESCE(identifyingtaxonomicname, '\\N'::text)), (COALESCE(taxonomicname, '\\N'::text)), (COALESCE(author, '\\N'::text)), (COALESCE(taxonomicnamewithauthor, '\\N'::text)));