SELECT column_type
FROM information_schema.columns
WHERE table_schema=DATABASE()
  AND table_name='gene_busqueda_ejecuciones'
  AND column_name='estado';

SELECT 'FUENTES_INICIALES' AS prueba, COUNT(*) AS total FROM research_fuentes;
SELECT 'INSTITUCIONES_INICIALES' AS prueba, COUNT(*) AS total FROM research_instituciones;