20 lines
537 B
SQL
20 lines
537 B
SQL
-- [PUMPS]
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create table pumps
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(
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id varchar(32) primary key references _link(id)
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, node1 varchar(32) references _node(id) not null
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, node2 varchar(32) references _node(id) not null
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, power float8
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, head varchar(32) references _curve(id)
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, speed float8
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, pattern varchar(32) references _pattern(id)
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, check (power is not null or head is not null)
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, check ((power is not null and head is not null) is false)
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);
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-- delete when delete node1
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-- delete when delete node2
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-- unset head when delete curve
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-- unset pattern when delete pattern
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