| Server IP : 103.119.228.120 / Your IP : 3.144.115.125 Web Server : Apache System : Linux v8.techscape8.com 3.10.0-1160.119.1.el7.tuxcare.els2.x86_64 #1 SMP Mon Jul 15 12:09:18 UTC 2024 x86_64 User : nobody ( 99) PHP Version : 5.6.40 Disable Function : shell_exec,symlink,system,exec,proc_get_status,proc_nice,proc_terminate,define_syslog_variables,syslog,openlog,closelog,escapeshellcmd,passthru,ocinum cols,ini_alter,leak,listen,chgrp,apache_note,apache_setenv,debugger_on,debugger_off,ftp_exec,dl,dll,myshellexec,proc_open,socket_bind,proc_close,escapeshellarg,parse_ini_filepopen,fpassthru,exec,passthru,escapeshellarg,escapeshellcmd,proc_close,proc_open,ini_alter,popen,show_source,proc_nice,proc_terminate,proc_get_status,proc_close,pfsockopen,leak,apache_child_terminate,posix_kill,posix_mkfifo,posix_setpgid,posix_setsid,posix_setuid,dl,symlink,shell_exec,system,dl,passthru,escapeshellarg,escapeshellcmd,myshellexec,c99_buff_prepare,c99_sess_put,fpassthru,getdisfunc,fx29exec,fx29exec2,is_windows,disp_freespace,fx29sh_getupdate,fx29_buff_prepare,fx29_sess_put,fx29shexit,fx29fsearch,fx29ftpbrutecheck,fx29sh_tools,fx29sh_about,milw0rm,imagez,sh_name,myshellexec,checkproxyhost,dosyayicek,c99_buff_prepare,c99_sess_put,c99getsource,c99sh_getupdate,c99fsearch,c99shexit,view_perms,posix_getpwuid,posix_getgrgid,posix_kill,parse_perms,parsesort,view_perms_color,set_encoder_input,ls_setcheckboxall,ls_reverse_all,rsg_read,rsg_glob,selfURL,dispsecinfo,unix2DosTime,addFile,system,get_users,view_size,DirFiles,DirFilesWide,DirPrintHTMLHeaders,GetFilesTotal,GetTitles,GetTimeTotal,GetMatchesCount,GetFileMatchesCount,GetResultFiles,fs_copy_dir,fs_copy_obj,fs_move_dir,fs_move_obj,fs_rmdir,SearchText,getmicrotime MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/local/ssl/local/ssl/local/ssl/local/ssl/local/ssl/include/pgsql/server/optimizer/ |
Upload File : |
/*-------------------------------------------------------------------------
*
* geqo.h
* prototypes for various files in optimizer/geqo
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/optimizer/geqo.h
*
*-------------------------------------------------------------------------
*/
/* contributed by:
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
* Martin Utesch * Institute of Automatic Control *
= = University of Mining and Technology =
* utesch@aut.tu-freiberg.de * Freiberg, Germany *
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
*/
#ifndef GEQO_H
#define GEQO_H
#include "nodes/relation.h"
#include "optimizer/geqo_gene.h"
/* GEQO debug flag */
/*
#define GEQO_DEBUG
*/
/* recombination mechanism */
/*
#define ERX
#define PMX
#define CX
#define PX
#define OX1
#define OX2
*/
#define ERX
/*
* Configuration options
*
* If you change these, update backend/utils/misc/postgresql.conf.sample
*/
extern int Geqo_effort; /* 1 .. 10, knob for adjustment of defaults */
#define DEFAULT_GEQO_EFFORT 5
#define MIN_GEQO_EFFORT 1
#define MAX_GEQO_EFFORT 10
extern int Geqo_pool_size; /* 2 .. inf, or 0 to use default */
extern int Geqo_generations; /* 1 .. inf, or 0 to use default */
extern double Geqo_selection_bias;
#define DEFAULT_GEQO_SELECTION_BIAS 2.0
#define MIN_GEQO_SELECTION_BIAS 1.5
#define MAX_GEQO_SELECTION_BIAS 2.0
extern double Geqo_seed; /* 0 .. 1 */
/*
* Private state for a GEQO run --- accessible via root->join_search_private
*/
typedef struct
{
List *initial_rels; /* the base relations we are joining */
unsigned short random_state[3]; /* state for pg_erand48() */
} GeqoPrivateData;
/* routines in geqo_main.c */
extern RelOptInfo *geqo(PlannerInfo *root,
int number_of_rels, List *initial_rels);
/* routines in geqo_eval.c */
extern Cost geqo_eval(PlannerInfo *root, Gene *tour, int num_gene);
extern RelOptInfo *gimme_tree(PlannerInfo *root, Gene *tour, int num_gene);
#endif /* GEQO_H */