src/include/optimizer/geqo_gene.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * geqo_gene.h
   4  *        genome representation in optimizer/geqo
   5  *
   6  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * $PostgreSQL$
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13
  14 /* contributed by:
  15    =*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
  16    *  Martin Utesch                              * Institute of Automatic Control          *
  17    =                                                     = University of Mining and Technology =
  18    *  utesch@aut.tu-freiberg.de  * Freiberg, Germany                               *
  19    =*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
  20  */
  21
  22
  23 #ifndef GEQO_GENE_H
  24 #define GEQO_GENE_H
  25
  26 #include "nodes/nodes.h"
  27
  28 /* we presume that int instead of Relid
  29    is o.k. for Gene; so don't change it! */
  30 typedef int Gene;
  31
  32 typedef struct Chromosome
  33 {
  34         Gene       *string;
  35         Cost            worth;
  36 } Chromosome;
  37
  38 typedef struct Pool
  39 {
  40         Chromosome *data;
  41         int                     size;
  42         int                     string_length;
  43 } Pool;
  44
  45 #endif   /* GEQO_GENE_H */