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Disallow setting fillfactor for TOAST tables. 

To implement this without almost duplicating the reloption table, treat
relopt_kind as a bitmask instead of an integer value.  This decreases the
range of allowed values, but it's not clear that there's need for that much
values anyway.

This patch also makes heap_reloptions explicitly a no-op for relation kinds
other than heap and TOAST tables.

Patch by ITAGAKI Takahiro with minor edits from me.  (In particular I removed
the bit about adding relation kind to an error message, which I intend to
commit separately.)
This commit is contained in:
Alvaro Herrera 2009-04-04 00:45:02 +00:00
parent 591f2944de
commit 1c855f01ea
2 changed files with 57 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
src/backend/access/common/reloptions.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/common/reloptions.c,v 1.24 2009/03/24 20:17:09 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/common/reloptions.c,v 1.25 2009/04/04 00:45:02 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@ -52,7 +52,7 @@ static relopt_bool boolRelOpts[] =
{
"autovacuum_enabled",
"Enables autovacuum in this relation",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
true
},
@ -106,7 +106,7 @@ static relopt_int intRelOpts[] =
{
"autovacuum_vacuum_threshold",
"Minimum number of tuple updates or deletes prior to vacuum",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
50, 0, INT_MAX
},
@ -114,7 +114,7 @@ static relopt_int intRelOpts[] =
{
"autovacuum_analyze_threshold",
"Minimum number of tuple inserts, updates or deletes prior to analyze",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
50, 0, INT_MAX
},
@ -122,7 +122,7 @@ static relopt_int intRelOpts[] =
{
"autovacuum_vacuum_cost_delay",
"Vacuum cost delay in milliseconds, for autovacuum",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
20, 0, 100
},
@ -130,7 +130,7 @@ static relopt_int intRelOpts[] =
{
"autovacuum_vacuum_cost_limit",
"Vacuum cost amount available before napping, for autovacuum",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
200, 1, 10000
},
@ -138,7 +138,7 @@ static relopt_int intRelOpts[] =
{
"autovacuum_freeze_min_age",
"Minimum age at which VACUUM should freeze a table row, for autovacuum",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
100000000, 0, 1000000000
},
@ -146,7 +146,7 @@ static relopt_int intRelOpts[] =
{
"autovacuum_freeze_max_age",
"Age at which to autovacuum a table to prevent transaction ID wraparound",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
200000000, 100000000, 2000000000
},
@ -154,7 +154,7 @@ static relopt_int intRelOpts[] =
{
"autovacuum_freeze_table_age",
"Age at which VACUUM should perform a full table sweep to replace old Xid values with FrozenXID",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
}, 150000000, 0, 2000000000
},
/* list terminator */
@ -167,7 +167,7 @@ static relopt_real realRelOpts[] =
{
"autovacuum_vacuum_scale_factor",
"Number of tuple updates or deletes prior to vacuum as a fraction of reltuples",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
0.2, 0.0, 100.0
},
@ -175,7 +175,7 @@ static relopt_real realRelOpts[] =
{
"autovacuum_analyze_scale_factor",
"Number of tuple inserts, updates or deletes prior to analyze as a fraction of reltuples",
RELOPT_KIND_HEAP
RELOPT_KIND_HEAP | RELOPT_KIND_TOAST
},
0.1, 0.0, 100.0
},
@ -190,7 +190,7 @@ static relopt_string stringRelOpts[] =
};
static relopt_gen **relOpts = NULL;
static int last_assigned_kind = RELOPT_KIND_LAST_DEFAULT + 1;
static bits32 last_assigned_kind = RELOPT_KIND_LAST_DEFAULT << 1;
static int num_custom_options = 0;
static relopt_gen **custom_options = NULL;
@ -275,14 +275,20 @@ initialize_reloptions(void)
* Create a new relopt_kind value, to be used in custom reloptions by
* user-defined AMs.
*/
int
relopt_kind
add_reloption_kind(void)
{
relopt_kind kind;
/* don't hand out the last bit so that the wraparound check is portable */
if (last_assigned_kind >= RELOPT_KIND_MAX)
ereport(ERROR,
(errmsg("user-defined relation parameter types limit exceeded")));
(errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
errmsg("user-defined relation parameter types limit exceeded")));
return last_assigned_kind++;
kind = (relopt_kind) last_assigned_kind;
last_assigned_kind <<= 1;
return kind;
}
/*
@ -325,7 +331,7 @@ add_reloption(relopt_gen *newoption)
* (for types other than string)
*/
static relopt_gen *
allocate_reloption(int kind, int type, char *name, char *desc)
allocate_reloption(bits32 kinds, int type, char *name, char *desc)
{
MemoryContext oldcxt;
size_t size;
@ -358,7 +364,7 @@ allocate_reloption(int kind, int type, char *name, char *desc)
newoption->desc = pstrdup(desc);
else
newoption->desc = NULL;
newoption->kind = kind;
newoption->kinds = kinds;
newoption->namelen = strlen(name);
newoption->type = type;
@ -372,11 +378,11 @@ allocate_reloption(int kind, int type, char *name, char *desc)
* Add a new boolean reloption
*/
void
add_bool_reloption(int kind, char *name, char *desc, bool default_val)
add_bool_reloption(bits32 kinds, char *name, char *desc, bool default_val)
{
relopt_bool *newoption;
newoption = (relopt_bool *) allocate_reloption(kind, RELOPT_TYPE_BOOL,
newoption = (relopt_bool *) allocate_reloption(kinds, RELOPT_TYPE_BOOL,
name, desc);
newoption->default_val = default_val;
@ -388,12 +394,12 @@ add_bool_reloption(int kind, char *name, char *desc, bool default_val)
* Add a new integer reloption
*/
void
add_int_reloption(int kind, char *name, char *desc, int default_val,
add_int_reloption(bits32 kinds, char *name, char *desc, int default_val,
int min_val, int max_val)
{
relopt_int *newoption;
newoption = (relopt_int *) allocate_reloption(kind, RELOPT_TYPE_INT,
newoption = (relopt_int *) allocate_reloption(kinds, RELOPT_TYPE_INT,
name, desc);
newoption->default_val = default_val;
newoption->min = min_val;
@ -407,12 +413,12 @@ add_int_reloption(int kind, char *name, char *desc, int default_val,
* Add a new float reloption
*/
void
add_real_reloption(int kind, char *name, char *desc, double default_val,
add_real_reloption(bits32 kinds, char *name, char *desc, double default_val,
double min_val, double max_val)
{
relopt_real *newoption;
newoption = (relopt_real *) allocate_reloption(kind, RELOPT_TYPE_REAL,
newoption = (relopt_real *) allocate_reloption(kinds, RELOPT_TYPE_REAL,
name, desc);
newoption->default_val = default_val;
newoption->min = min_val;
@ -431,7 +437,7 @@ add_real_reloption(int kind, char *name, char *desc, double default_val,
* the validation.
*/
void
add_string_reloption(int kind, char *name, char *desc, char *default_val,
add_string_reloption(bits32 kinds, char *name, char *desc, char *default_val,
validate_string_relopt validator)
{
MemoryContext oldcxt;
@ -450,7 +456,7 @@ add_string_reloption(int kind, char *name, char *desc, char *default_val,
newoption->gen.desc = pstrdup(desc);
else
newoption->gen.desc = NULL;
newoption->gen.kind = kind;
newoption->gen.kinds = kinds;
newoption->gen.namelen = strlen(name);
newoption->gen.type = RELOPT_TYPE_STRING;
newoption->validate_cb = validator;
@ -784,7 +790,7 @@ parseRelOptions(Datum options, bool validate, relopt_kind kind,
/* Build a list of expected options, based on kind */
for (i = 0; relOpts[i]; i++)
if (relOpts[i]->kind == kind)
if (relOpts[i]->kinds & kind)
numoptions++;
if (numoptions == 0)
@ -797,7 +803,7 @@ parseRelOptions(Datum options, bool validate, relopt_kind kind,
for (i = 0, j = 0; relOpts[i]; i++)
{
if (relOpts[i]->kind == kind)
if (relOpts[i]->kinds & kind)
{
reloptions[j].gen = relOpts[i];
reloptions[j].isset = false;
@ -1116,7 +1122,16 @@ default_reloptions(Datum reloptions, bool validate, relopt_kind kind)
bytea *
heap_reloptions(char relkind, Datum reloptions, bool validate)
{
return default_reloptions(reloptions, validate, RELOPT_KIND_HEAP);
switch (relkind)
{
case RELKIND_TOASTVALUE:
return default_reloptions(reloptions, validate, RELOPT_KIND_TOAST);
case RELKIND_RELATION:
return default_reloptions(reloptions, validate, RELOPT_KIND_HEAP);
default:
/* sequences, composite types and views are not supported */
return NULL;
}
}

28
src/include/access/reloptions.h
View File

@ -11,7 +11,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/reloptions.h,v 1.13 2009/03/23 16:36:27 tgl Exp $
* $PostgreSQL: pgsql/src/include/access/reloptions.h,v 1.14 2009/04/04 00:45:02 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@ -33,15 +33,15 @@ typedef enum relopt_type
/* kinds supported by reloptions */
typedef enum relopt_kind
{
RELOPT_KIND_HEAP,
/* XXX do we need a separate kind for TOAST tables? */
RELOPT_KIND_BTREE,
RELOPT_KIND_HASH,
RELOPT_KIND_GIN,
RELOPT_KIND_GIST,
RELOPT_KIND_HEAP = (1 << 0),
RELOPT_KIND_TOAST = (1 << 1),
RELOPT_KIND_BTREE = (1 << 2),
RELOPT_KIND_HASH = (1 << 3),
RELOPT_KIND_GIN = (1 << 4),
RELOPT_KIND_GIST = (1 << 5),
/* if you add a new kind, make sure you update "last_default" too */
RELOPT_KIND_LAST_DEFAULT = RELOPT_KIND_GIST,
RELOPT_KIND_MAX = 255
RELOPT_KIND_MAX = (1 << 31)
} relopt_kind;
/* reloption namespaces allowed for heaps -- currently only TOAST */
@ -52,7 +52,7 @@ typedef struct relopt_gen
{
const char *name; /* must be first (used as list termination marker) */
const char *desc;
relopt_kind kind;
bits32 kinds;
int namelen;
relopt_type type;
} relopt_gen;
@ -232,14 +232,14 @@ typedef struct
(char *)(optstruct) + (optstruct)->member)
extern int add_reloption_kind(void);
extern void add_bool_reloption(int kind, char *name, char *desc,
extern relopt_kind add_reloption_kind(void);
extern void add_bool_reloption(bits32 kinds, char *name, char *desc,
bool default_val);
extern void add_int_reloption(int kind, char *name, char *desc,
extern void add_int_reloption(bits32 kinds, char *name, char *desc,
int default_val, int min_val, int max_val);
extern void add_real_reloption(int kind, char *name, char *desc,
extern void add_real_reloption(bits32 kinds, char *name, char *desc,
double default_val, double min_val, double max_val);
extern void add_string_reloption(int kind, char *name, char *desc,
extern void add_string_reloption(bits32 kinds, char *name, char *desc,
char *default_val, validate_string_relopt validator);
extern Datum transformRelOptions(Datum oldOptions, List *defList,