ask for parts of a user defined types

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От Kjetil Haaland
Тема ask for parts of a user defined types
Дата
Msg-id 200504121814.05516.kjetil.haaland@student.uib.no
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Ответы Re: ask for parts of a user defined types  (Tom Lane <tgl@sss.pgh.pa.us>)
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Hi

I am wondering if it is possible to select values from user defined types.
That is, if a new type is defined like for example the Complex type in the
documentation, is it then possible to select just one of the double values
that this type keeps? (this is not a good example, but in other types with
other values this might be interesting) In c structures this is possible
using the dot notation or ->. Is this possible in some way in PostgreSQL too?

thanks
Kjetil

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