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Aggregates with internal state type? - Mailing list pgsql-sql

From Markus Schaber
Subject Aggregates with internal state type?
Date
Msg-id 45086B40.3000200@logix-tt.com
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Responses Re: Aggregates with internal state type?  (Tom Lane <tgl@sss.pgh.pa.us>)
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Hi,

The PostgreSQL allows functions to define "internal" as parameter and
return types for functions, when those are not visible from SQL.

This lead me to the question whether it is possible to use "internal" as
state type for an Aggregate whose functions are implemented in C.

Thanks,
Markus

-- 
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org

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