can anybody help me please

Hi, there,
i need a help in creating new data type in postgresql. I've read the manual, create type, i have try to create the type mentioned in the manual (chapter Extending SQL type). but to no avail.
At first it was my cygwin installation that doesn't support C as the language using createlang. But my postgresql 7.2.2 on linux Redhat 8, show the same behaviour. They only support plpgsql, pltcl, etc.

i also try to make a c program which only prints something like "Hello World", i include the postgresql.h file as header, i found out that the file isn't anywhere in my computer. My question: where can i get it? Can somebody just tell me where the resource is?

i really appreciate those gurus who would like to help newbie like me.

regards,
rifki
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+ open mind, open heart, act ! +
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