1 /*-------------------------------------------------------------------------
2  *
3  * geqo_gene.h
4  *	  genome representation in optimizer/geqo
5  *
6  * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
7  * Portions Copyright (c) 1994, Regents of the University of California
8  *
9  * src/include/optimizer/geqo_gene.h
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 */
46