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The heralded `Grand Unified Configuration scheme' (GUC)

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That means you can now set your options in either or all of $PGDATA/configuration,
some postmaster option (--enable-fsync=off), or set a SET command. The list of
options is in backend/utils/misc/guc.c, documentation will be written post haste.

pg_options is gone, so is that pq_geqo config file. Also removed were backend -K,
-Q, and -T options (no longer applicable, although -d0 does the same as -Q).

Added to configure an --enable-syslog option.

changed all callers from TPRINTF to elog(DEBUG)
This commit is contained in:
Peter Eisentraut
2000-05-31 00:28:42 +00:00
parent 5e4d554bae
commit 6a68f42648
54 changed files with 2584 additions and 3290 deletions
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33
src/include/optimizer/geqo.h
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@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: geqo.h,v 1.18 2000/01/26 05:58:20 momjian Exp $
* $Id: geqo.h,v 1.19 2000/05/31 00:28:38 petere Exp $
*
*-------------------------------------------------------------------------
*/
@@ -41,32 +41,29 @@
*/
#define ERX
/* genetic algorithm parameters */
#define GEQO_FILE "pg_geqo" /* Name of the ga config file */
/*
* Configuration options
*/
extern int Geqo_pool_size;
#define DEFAULT_GEQO_POOL_SIZE 0 /* = default based on no. of relations. */
#define MIN_GEQO_POOL_SIZE 128
#define MAX_GEQO_POOL_SIZE 1024
#define MIN_POOL 128 /* minimum number of individuals */
#define MAX_POOL 1024 /* maximum number of individuals */
extern int Geqo_effort; /* 1 .. inf, only used to calculate generations default */
extern int Geqo_generations; /* 1 .. inf, or 0 to use default based on pool size */
#define LOW_EFFORT 1 /* optimization effort values */
#define MEDIUM_EFFORT 40 /* are multipliers for computed */
#define HIGH_EFFORT 80 /* number of generations */
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
#define SELECTION_BIAS 2.0 /* selective pressure within population */
/* should be 1.5 <= SELECTION_BIAS <= 2.0 */
extern int Geqo_random_seed; /* or negative to use current time */
/* parameter values set in geqo_params.c */
extern int PoolSize;
extern int Generations;
extern long RandomSeed;
extern double SelectionBias;
/* routines in geqo_main.c */
extern RelOptInfo *geqo(Query *root);
/* routines in geqo_params.c */
extern void geqo_params(int string_length);
/* routines in geqo_eval.c */
extern void geqo_eval_startup(void);
extern Cost geqo_eval(Query *root, Gene *tour, int num_gene);