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提交 7df3bb50 编写于 作者: B Bruce Momjian
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Add all possible config file options.

上级 3347fbad
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Showing with 380 addition and 221 deletion
src/backend/utils/misc/guc.c
浏览文件 @ 7df3bb50
......@@ -4,7 +4,7 @@
* Support for grand unified configuration scheme, including SET
* command, configuration file, and command line options.
*
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.27 2001/01/09 06:24:33 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.28 2001/01/24 18:37:31 momjian Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
......@@ -76,50 +76,50 @@ bool SQL_inheritance = true;
enum config_type
{
PGC_NONE = 0,
PGC_BOOL,
PGC_INT,
PGC_REAL,
PGC_STRING
PGC_NONE = 0,
PGC_BOOL,
PGC_INT,
PGC_REAL,
PGC_STRING
};
struct config_generic
{
const char *name;
GucContext context;
void *variable;
const char *name;
GucContext context;
void *variable;
};
struct config_bool
{
const char *name;
GucContext context;
bool *variable;
bool default_val;
const char *name;
GucContext context;
bool *variable;
bool default_val;
};
struct config_int
{
const char *name;
GucContext context;
int *variable;
int default_val;
int min;
int max;
const char *name;
GucContext context;
int *variable;
int default_val;
int min;
int max;
};
struct config_real
{
const char *name;
GucContext context;
double *variable;
double default_val;
double min;
double max;
const char *name;
GucContext context;
double *variable;
double default_val;
double min;
double max;
};
/*
......@@ -130,11 +130,11 @@ struct config_real
*/
struct config_string
{
const char *name;
GucContext context;
char **variable;
const char *default_val;
bool (*parse_hook)(const char *);
const char *name;
GucContext context;
char **variable;
const char *default_val;
bool (*parse_hook)(const char *);
};
......@@ -152,7 +152,12 @@ struct config_string
*
* 4. Add a record below.
*
* 5. Don't forget to document that option.
* 5. Add it to postgresql.conf.sample
*
* 6. Don't forget to document that option.
*
* WHEN MAKING MODIFICATIONS, remember to update postgresql.conf.sample
*
*/
......@@ -284,28 +289,28 @@ ConfigureNamesInt[] =
{"commit_delay", PGC_USERSET, &CommitDelay,
5, 0, 1000},
{NULL, 0, NULL, 0, 0, 0}
{NULL, 0, NULL, 0, 0, 0}
};
static struct config_real
ConfigureNamesReal[] =
{
{"effective_cache_size", PGC_USERSET, &effective_cache_size,
DEFAULT_EFFECTIVE_CACHE_SIZE, 0, DBL_MAX},
{"random_page_cost", PGC_USERSET, &random_page_cost,
DEFAULT_RANDOM_PAGE_COST, 0, DBL_MAX},
{"cpu_tuple_cost", PGC_USERSET, &cpu_tuple_cost,
DEFAULT_CPU_TUPLE_COST, 0, DBL_MAX},
{"cpu_index_tuple_cost", PGC_USERSET, &cpu_index_tuple_cost,
DEFAULT_CPU_INDEX_TUPLE_COST, 0, DBL_MAX},
{"cpu_operator_cost", PGC_USERSET, &cpu_operator_cost,
DEFAULT_CPU_OPERATOR_COST, 0, DBL_MAX},
{"geqo_selection_bias", PGC_USERSET, &Geqo_selection_bias,
DEFAULT_GEQO_SELECTION_BIAS, MIN_GEQO_SELECTION_BIAS, MAX_GEQO_SELECTION_BIAS},
{NULL, 0, NULL, 0.0, 0.0, 0.0}
{"effective_cache_size", PGC_USERSET, &effective_cache_size,
DEFAULT_EFFECTIVE_CACHE_SIZE, 0, DBL_MAX},
{"random_page_cost", PGC_USERSET, &random_page_cost,
DEFAULT_RANDOM_PAGE_COST, 0, DBL_MAX},
{"cpu_tuple_cost", PGC_USERSET, &cpu_tuple_cost,
DEFAULT_CPU_TUPLE_COST, 0, DBL_MAX},
{"cpu_index_tuple_cost", PGC_USERSET, &cpu_index_tuple_cost,
DEFAULT_CPU_INDEX_TUPLE_COST, 0, DBL_MAX},
{"cpu_operator_cost", PGC_USERSET, &cpu_operator_cost,
DEFAULT_CPU_OPERATOR_COST, 0, DBL_MAX},
{"geqo_selection_bias", PGC_USERSET, &Geqo_selection_bias,
DEFAULT_GEQO_SELECTION_BIAS, MIN_GEQO_SELECTION_BIAS, MAX_GEQO_SELECTION_BIAS},
{NULL, 0, NULL, 0.0, 0.0, 0.0}
};
......@@ -319,10 +324,10 @@ ConfigureNamesString[] =
"", NULL},
#ifdef ENABLE_SYSLOG
{"syslog_facility", PGC_POSTMASTER, &Syslog_facility,
"LOCAL0", check_facility},
{"syslog_ident", PGC_POSTMASTER, &Syslog_ident,
"postgres", NULL},
{"syslog_facility", PGC_POSTMASTER, &Syslog_facility,
"LOCAL0", check_facility},
{"syslog_ident", PGC_POSTMASTER, &Syslog_ident,
"postgres", NULL},
#endif
{"unix_socket_directory", PGC_POSTMASTER, &UnixSocketDir,
......@@ -346,43 +351,43 @@ ConfigureNamesString[] =
static enum config_type
find_option(const char * name, struct config_generic ** record)
{
int i;
Assert(name);
for (i = 0; ConfigureNamesBool[i].name; i++)
if (strcasecmp(ConfigureNamesBool[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesBool[i];
return PGC_BOOL;
}
for (i = 0; ConfigureNamesInt[i].name; i++)
if (strcasecmp(ConfigureNamesInt[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesInt[i];
return PGC_INT;
}
for (i = 0; ConfigureNamesReal[i].name; i++)
if (strcasecmp(ConfigureNamesReal[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesReal[i];
return PGC_REAL;
}
int i;
Assert(name);
for (i = 0; ConfigureNamesBool[i].name; i++)
if (strcasecmp(ConfigureNamesBool[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesBool[i];
return PGC_BOOL;
}
for (i = 0; ConfigureNamesInt[i].name; i++)
if (strcasecmp(ConfigureNamesInt[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesInt[i];
return PGC_INT;
}
for (i = 0; ConfigureNamesReal[i].name; i++)
if (strcasecmp(ConfigureNamesReal[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesReal[i];
return PGC_REAL;
}
for (i = 0; ConfigureNamesString[i].name; i++)
if (strcasecmp(ConfigureNamesString[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesString[i];
return PGC_STRING;
}
return PGC_NONE;
if (strcasecmp(ConfigureNamesString[i].name, name)==0)
{
if (record)
*record = (struct config_generic *)&ConfigureNamesString[i];
return PGC_STRING;
}
return PGC_NONE;
}
......@@ -394,16 +399,16 @@ find_option(const char * name, struct config_generic ** record)
void
ResetAllOptions(void)
{
int i;
int i;
for (i = 0; ConfigureNamesBool[i].name; i++)
*(ConfigureNamesBool[i].variable) = ConfigureNamesBool[i].default_val;
for (i = 0; ConfigureNamesBool[i].name; i++)
*(ConfigureNamesBool[i].variable) = ConfigureNamesBool[i].default_val;
for (i = 0; ConfigureNamesInt[i].name; i++)
*(ConfigureNamesInt[i].variable) = ConfigureNamesInt[i].default_val;
for (i = 0; ConfigureNamesInt[i].name; i++)
*(ConfigureNamesInt[i].variable) = ConfigureNamesInt[i].default_val;
for (i = 0; ConfigureNamesReal[i].name; i++)
*(ConfigureNamesReal[i].variable) = ConfigureNamesReal[i].default_val;
for (i = 0; ConfigureNamesReal[i].name; i++)
*(ConfigureNamesReal[i].variable) = ConfigureNamesReal[i].default_val;
for (i = 0; ConfigureNamesString[i].name; i++)
{
......@@ -433,55 +438,55 @@ ResetAllOptions(void)
static bool
parse_bool(const char * value, bool * result)
{
size_t len = strlen(value);
if (strncasecmp(value, "true", len)==0)
{
if (result)
*result = true;
}
else if (strncasecmp(value, "false", len)==0)
{
if (result)
*result = false;
}
else if (strncasecmp(value, "yes", len)==0)
{
if (result)
*result = true;
}
else if (strncasecmp(value, "no", len)==0)
{
if (result)
*result = false;
}
else if (strcasecmp(value, "on")==0)
{
if (result)
*result = true;
}
else if (strcasecmp(value, "off")==0)
{
if (result)
*result = false;
}
else if (strcasecmp(value, "1")==0)
{
if (result)
*result = true;
}
else if (strcasecmp(value, "0")==0)
{
if (result)
*result = false;
}
else
return false;
return true;
size_t len = strlen(value);
if (strncasecmp(value, "true", len)==0)
{
if (result)
*result = true;
}
else if (strncasecmp(value, "false", len)==0)
{
if (result)
*result = false;
}
else if (strncasecmp(value, "yes", len)==0)
{
if (result)
*result = true;
}
else if (strncasecmp(value, "no", len)==0)
{
if (result)
*result = false;
}
else if (strcasecmp(value, "on")==0)
{
if (result)
*result = true;
}
else if (strcasecmp(value, "off")==0)
{
if (result)
*result = false;
}
else if (strcasecmp(value, "1")==0)
{
if (result)
*result = true;
}
else if (strcasecmp(value, "0")==0)
{
if (result)
*result = false;
}
else
return false;
return true;
}
......@@ -495,16 +500,16 @@ parse_bool(const char * value, bool * result)
static bool
parse_int(const char * value, int * result)
{
long val;
char * endptr;
errno = 0;
val = strtol(value, &endptr, 0);
if (endptr == value || *endptr != '\0' || errno == ERANGE)
return false;
if (result)
*result = (int)val;
return true;
long val;
char * endptr;
errno = 0;
val = strtol(value, &endptr, 0);
if (endptr == value || *endptr != '\0' || errno == ERANGE)
return false;
if (result)
*result = (int)val;
return true;
}
......@@ -517,16 +522,16 @@ parse_int(const char * value, int * result)
static bool
parse_real(const char * value, double * result)
{
double val;
char * endptr;
errno = 0;
val = strtod(value, &endptr);
if (endptr == value || *endptr != '\0' || errno == ERANGE)
return false;
if (result)
*result = val;
return true;
double val;
char * endptr;
errno = 0;
val = strtod(value, &endptr);
if (endptr == value || *endptr != '\0' || errno == ERANGE)
return false;
if (result)
*result = val;
return true;
}
......@@ -555,14 +560,14 @@ bool
set_config_option(const char * name, const char * value, GucContext
context, bool DoIt)
{
struct config_generic * record;
enum config_type type;
struct config_generic * record;
enum config_type type;
int elevel;
elevel = (context == PGC_SIGHUP) ? DEBUG : ERROR;
type = find_option(name, &record);
if (type == PGC_NONE)
type = find_option(name, &record);
if (type == PGC_NONE)
{
elog(elevel, "'%s' is not a valid option name", name);
return false;
......@@ -573,7 +578,7 @@ set_config_option(const char * name, const char * value, GucContext
* precise rules. Note that we don't want to throw errors if we're
* in the SIGHUP context. In that case we just ignore the attempt.
*/
if (record->context == PGC_POSTMASTER && context != PGC_POSTMASTER)
if (record->context == PGC_POSTMASTER && context != PGC_POSTMASTER)
{
if (context != PGC_SIGHUP)
elog(ERROR, "'%s' cannot be changed after server start", name);
......@@ -607,83 +612,83 @@ set_config_option(const char * name, const char * value, GucContext
/*
* Evaluate value and set variable
*/
switch(type)
{
case PGC_BOOL:
switch(type)
{
case PGC_BOOL:
{
struct config_bool * conf = (struct config_bool *)record;
if (value)
{
if (value)
{
bool boolval;
if (!parse_bool(value, &boolval))
if (!parse_bool(value, &boolval))
{
elog(elevel, "option '%s' requires a boolean value", name);
return false;
}
if (DoIt)
*conf->variable = boolval;
}
else if (DoIt)
*conf->variable = conf->default_val;
break;
}
else if (DoIt)
*conf->variable = conf->default_val;
break;
}
case PGC_INT:
{
struct config_int * conf = (struct config_int *)record;
{
struct config_int * conf = (struct config_int *)record;
if (value)
{
int intval;
if (value)
{
int intval;
if (!parse_int(value, &intval))
if (!parse_int(value, &intval))
{
elog(elevel, "option '%s' expects an integer value", name);
elog(elevel, "option '%s' expects an integer value", name);
return false;
}
if (intval < conf->min || intval > conf->max)
if (intval < conf->min || intval > conf->max)
{
elog(elevel, "option '%s' value %d is outside"
elog(elevel, "option '%s' value %d is outside"
" of permissible range [%d .. %d]",
name, intval, conf->min, conf->max);
return false;
}
if (DoIt)
*conf->variable = intval;
}
else if (DoIt)
*conf->variable = conf->default_val;
break;
}
}
else if (DoIt)
*conf->variable = conf->default_val;
break;
}
case PGC_REAL:
{
struct config_real * conf = (struct config_real *)record;
{
struct config_real * conf = (struct config_real *)record;
if (value)
{
double dval;
if (value)
{
double dval;
if (!parse_real(value, &dval))
if (!parse_real(value, &dval))
{
elog(elevel, "option '%s' expects a real number", name);
elog(elevel, "option '%s' expects a real number", name);
return false;
}
if (dval < conf->min || dval > conf->max)
if (dval < conf->min || dval > conf->max)
{
elog(elevel, "option '%s' value %g is outside"
elog(elevel, "option '%s' value %g is outside"
" of permissible range [%g .. %g]",
name, dval, conf->min, conf->max);
return false;
}
if (DoIt)
*conf->variable = dval;
}
else if (DoIt)
*conf->variable = conf->default_val;
break;
}
}
else if (DoIt)
*conf->variable = conf->default_val;
break;
}
case PGC_STRING:
{
......@@ -727,7 +732,7 @@ set_config_option(const char * name, const char * value, GucContext
}
default: ;
}
}
return true;
}
......@@ -759,35 +764,35 @@ SetConfigOption(const char * name, const char * value, GucContext
const char *
GetConfigOption(const char * name)
{
struct config_generic * record;
struct config_generic * record;
static char buffer[256];
enum config_type opttype;
opttype = find_option(name, &record);
opttype = find_option(name, &record);
if (opttype == PGC_NONE)
elog(ERROR, "Option '%s' is not recognized", name);
switch(opttype)
{
case PGC_BOOL:
return *((struct config_bool *)record)->variable ? "on" : "off";
{
case PGC_BOOL:
return *((struct config_bool *)record)->variable ? "on" : "off";
case PGC_INT:
case PGC_INT:
snprintf(buffer, 256, "%d", *((struct config_int *)record)->variable);
return buffer;
case PGC_REAL:
case PGC_REAL:
snprintf(buffer, 256, "%g", *((struct config_real *)record)->variable);
return buffer;
case PGC_STRING:
return *((struct config_string *)record)->variable;
default:
default:
;
}
return NULL;
}
}
return NULL;
}
......@@ -838,7 +843,7 @@ ParseLongOption(const char * string, char ** name, char ** value)
#ifdef ENABLE_SYSLOG
bool
bool
check_facility(const char *facility)
{
if (strcasecmp(facility,"LOCAL0") == 0) return true;
......
src/backend/utils/misc/postgresql.conf.sample
浏览文件 @ 7df3bb50
......@@ -18,3 +18,153 @@
# Any option can also be given as a command line switch to the
# postmaster, e.g., 'postmaster -c log_connections=on'. Some options
# can be set at run-time with the 'SET' SQL command.
#========================================================================
#
# Connection Parameters
#
#tcpip_socket = false
#ssl = false
#max_connections = 32 # 1-1024
#port = 5432
#hostname_lookup = false
#show_source_port = false
#unix_socket_directory = ""
#unix_socket_group = ""
#unix_socket_permissions = 0777
#virtual_host = ""
#krb_server_keyfile = ""
#
# Performance
#
#sort_mem = 512
#shared_buffers = 2*max_connections # min 16
#fsync = true
#
# Optimizer Parameters
#
#enable_seqscan = true
#enable_indexscan = true
#enable_tidscan = true
#enable_sort = true
#enable_nestloop = true
#enable_mergejoin = true
#enable_hashjoin = true
#ksqo = false
#geqo = true
#effective_cache_size = 1000 # default in 8k pages
#random_page_cost = 4
#cpu_tuple_cost = 0.01
#cpu_index_tuple_cost = 0.001
#cpu_operator_cost = 0.0025
#geqo_selection_bias = 2.0 # range 1.5-2.0
#
# GEQO Optimizer Parameters
#
#geqo_threshold = 11
#geqo_pool_size = 0 #default based in tables, range 128-1024
#geqo_effort = 1
#geqo_generations = 0
#geqo_random_seed = -1 # auto-compute seed
#
# Inheritance
#
#sql_inheritance = true
#
# Deadlock
#
#deadlock_timeout = 1000
#
# Expression Depth Limitation
#
#max_expr_depth = 10000 # min 10
#
# Write-ahead log (WAL)
#
#wal_buffers = 8 # min 4
#wal_files = 0 # range 0-64
#wal_debug = 0 # range 0-16
#commit_delay = 5 # range 0-1000
#checkpoint_timeout = 300 # range 30-1800
#
# Debug display
#
#silent_mode = false
#log_connections = false
#log_timestamp = false
#log_pid = false
#debug_level = 0 # range 0-16
#debug_print_query = false
#debug_print_parse = false
#debug_print_rewritten = false
#debug_print_plan = false
#debug_pretty_print = false
#ifdef USE_ASSERT_CHECKING
#debug_assertions = true
#endif
#
# Syslog
#
#ifdef ENABLE_SYSLOG
#syslog = 0 # range 0-2
#syslog_facility = "LOCAL0"
#syslog_ident = "postgres"
#endif
#
# Statistics
#
#show_parser_stats = false
#show_planner_stats = false
#show_executor_stats = false
#show_query_stats = false
#ifdef BTREE_BUILD_STATS
#show_btree_build_stats = false
#endif
#
# Lock Tracing
#
#trace_notify = false
#ifdef LOCK_DEBUG
#trace_locks = false
#trace_userlocks = false
#trace_spinlocks = false
#debug_deadlocks = false
#trace_lock_oidmin = 16384
#trace_lock_table = 0
#endif
src/include/optimizer/cost.h
浏览文件 @ 7df3bb50
......@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: cost.h,v 1.35 2000/10/05 19:48:33 momjian Exp $
* $Id: cost.h,v 1.36 2001/01/24 18:37:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -18,6 +18,7 @@
/* defaults for costsize.c's Cost parameters */
/* NB: cost-estimation code should use the variables, not these constants! */
/* If you change these, update backend/utils/misc/postgresql.sample.conf */
#define DEFAULT_EFFECTIVE_CACHE_SIZE 1000.0 /* measured in pages */
#define DEFAULT_RANDOM_PAGE_COST 4.0
#define DEFAULT_CPU_TUPLE_COST 0.01
......
src/include/optimizer/geqo.h
浏览文件 @ 7df3bb50
......@@ -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 1.21 2000/09/19 18:42:32 tgl Exp $
* $Id: geqo.h,v 1.22 2001/01/24 18:37:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -45,6 +45,7 @@
/*
* Configuration options
*/
/* If you change these, update backend/utils/misc/postgresql.sample.conf */
extern int Geqo_pool_size;
#define DEFAULT_GEQO_POOL_SIZE 0 /* = default based on no. of relations. */
#define MIN_GEQO_POOL_SIZE 128
......@@ -54,6 +55,7 @@ extern int Geqo_effort; /* 1 .. inf, only used to calculate generations
extern int Geqo_generations; /* 1 .. inf, or 0 to use default based on pool size */
extern double Geqo_selection_bias;
/* If you change these, update backend/utils/misc/postgresql.sample.conf */
#define DEFAULT_GEQO_SELECTION_BIAS 2.0
#define MIN_GEQO_SELECTION_BIAS 1.5
#define MAX_GEQO_SELECTION_BIAS 2.0
......
src/include/optimizer/paths.h
浏览文件 @ 7df3bb50
......@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: paths.h,v 1.49 2000/12/14 22:30:45 tgl Exp $
* $Id: paths.h,v 1.50 2001/01/24 18:37:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -18,6 +18,7 @@
#include "nodes/relation.h"
/* default GEQO threshold (default value for geqo_rels) */
/* If you change this, update backend/utils/misc/postgresql.sample.conf */
#define DEFAULT_GEQO_RELS 11
......
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