Vanmunin Chea <[EMAIL PROTECTED]> writes:
> // This one is not working
> typedef struct Myindex {
>       double *indexes;
>       int level;
>       int size;
> } Myindex

You cannot use a pointer inside a Postgres datatype.  The system will
have no idea that the pointer is there and so will not copy the
pointed-to data, nor update the pointer, when the datum is copied,
stored on disk, etc.

                        regards, tom lane

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