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Viewing changes to src/include/access/tupconvert.h

  • Committer: Bazaar Package Importer
  • Author(s): Martin Pitt
  • Date: 2011-05-11 10:41:53 UTC
  • Revision ID: james.westby@ubuntu.com-20110511104153-psbh2o58553fv1m0
Tags: upstream-9.1~beta1
Import upstream version 9.1~beta1

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src/include/access/tupconvert.h
 
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/*-------------------------------------------------------------------------
 
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 *
 
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 * tupconvert.h
 
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 *        Tuple conversion support.
 
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 *
 
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 *
 
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 * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
 
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 * Portions Copyright (c) 1994, Regents of the University of California
 
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 *
 
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 * src/include/access/tupconvert.h
 
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 *
 
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 *-------------------------------------------------------------------------
 
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 */
 
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#ifndef TUPCONVERT_H
 
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#define TUPCONVERT_H
 
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#include "access/htup.h"
 
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typedef struct TupleConversionMap
 
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{
 
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        TupleDesc       indesc;                 /* tupdesc for source rowtype */
 
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        TupleDesc       outdesc;                /* tupdesc for result rowtype */
 
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        AttrNumber *attrMap;            /* indexes of input fields, or 0 for null */
 
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        Datum      *invalues;           /* workspace for deconstructing source */
 
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        bool       *inisnull;
 
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        Datum      *outvalues;          /* workspace for constructing result */
 
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        bool       *outisnull;
 
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} TupleConversionMap;
 
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extern TupleConversionMap *convert_tuples_by_position(TupleDesc indesc,
 
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                                                   TupleDesc outdesc,
 
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                                                   const char *msg);
 
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extern TupleConversionMap *convert_tuples_by_name(TupleDesc indesc,
 
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                                           TupleDesc outdesc,
 
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                                           const char *msg);
 
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extern HeapTuple do_convert_tuple(HeapTuple tuple, TupleConversionMap *map);
 
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extern void free_conversion_map(TupleConversionMap *map);
 
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#endif   /* TUPCONVERT_H */