--TODO: Document and migrate to setup

drop table if exists "DiseaseBurden".trial_to_icd10;
drop type if exists "DiseaseBurden".validation_type;

create type "DiseaseBurden".validation_type as enum ('accepted', 'rejected', 'unmatched');
comment on type "DiseaseBurden".validation_type is 'This is used to record interactions with each type. It can be accepted (yes this should be used), rejected (no this doesn`t match), or unmatched (where non of the proposed options match)';


CREATE TABLE "DiseaseBurden".trial_to_icd10 (
    id integer NOT NULL GENERATED ALWAYS AS IDENTITY,
    nct_id varchar NOT NULL,
    "condition" varchar NOT NULL,
    ui varchar NULL,
    uri varchar NULL,
    rootsource varchar NULL,
    "name" varchar NULL,
    "source" varchar null,
    approved "DiseaseBurden".validation_type,
    approval_timestamp timestamp,
        CONSTRAINT trial_to_icd10_pk PRIMARY KEY (id)
);
comment on type "DiseaseBurden".trial_to_icd10 is 'This represents potential links between trials and icd10 codes. Most of the links are both automatic and wrong.';



DROP TABLE if exists "DiseaseBurden".icd10_to_cause;
 
CREATE TABLE "DiseaseBurden".icd10_to_cause (
    id SERIAL NOT NULL ,
    code varchar NOT NULL,
    cause_text varchar NOT NULL,
    CONSTRAINT icd10_to_cause_pk PRIMARY KEY (id)
);