-- [TANKS]

CREATE TYPE TANKS_OVERFLOW AS ENUM ('YES', 'NO');

CREATE TABLE TANKS
(
  ID VARCHAR(32) PRIMARY KEY REFERENCES _NODE(ID)
, Elevation NUMERIC NOT NULL
, InitLevel NUMERIC NOT NULL
, MinLevel NUMERIC NOT NULL
, MaxLevel NUMERIC NOT NULL
, Diameter NUMERIC NOT NULL
, MinVol NUMERIC NOT NULL
, VolCurve VARCHAR(32) REFERENCES _CURVE(ID)
, Overflow TANKS_OVERFLOW
);