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michaelpqmichaelpq
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Refactor reloption handling for index AMs in-core
This reworks the reloption parsing and build of a couple of index AMs by creating new structures for each index AM's options. This split was already done for BRIN, GIN and GiST (which actually has a fillfactor parameter), but not for hash, B-tree and SPGiST which relied on StdRdOptions due to an overlap with the default option set. This saves a couple of bytes for rd_options in each relcache entry with indexes making use of relation options, and brings more consistency between all index AMs. While on it, add a couple of AssertMacro() calls to make sure that utility macros to grab values of reloptions are used with the expected index AM. Author: Nikolay Shaplov Reviewed-by: Amit Langote, Michael Paquier, Álvaro Herrera, Dent John Discussion: https://postgr.es/m/4127670.gFlpRb6XCm@x200m
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16 files changed

+110
-24
lines changed

16 files changed

+110
-24
lines changed

‎src/backend/access/common/reloptions.c

Lines changed: 1 addition & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -23,7 +23,7 @@
2323
#include "access/htup_details.h"
2424
#include "access/nbtree.h"
2525
#include "access/reloptions.h"
26-
#include "access/spgist.h"
26+
#include "access/spgist_private.h"
2727
#include "catalog/pg_type.h"
2828
#include "commands/defrem.h"
2929
#include "commands/tablespace.h"
@@ -1521,8 +1521,6 @@ default_reloptions(Datum reloptions, bool validate, relopt_kind kind)
15211521
offsetof(StdRdOptions, user_catalog_table)},
15221522
{"parallel_workers", RELOPT_TYPE_INT,
15231523
offsetof(StdRdOptions, parallel_workers)},
1524-
{"vacuum_cleanup_index_scale_factor", RELOPT_TYPE_REAL,
1525-
offsetof(StdRdOptions, vacuum_cleanup_index_scale_factor)},
15261524
{"vacuum_index_cleanup", RELOPT_TYPE_BOOL,
15271525
offsetof(StdRdOptions, vacuum_index_cleanup)},
15281526
{"vacuum_truncate", RELOPT_TYPE_BOOL,

‎src/backend/access/hash/hashpage.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -358,7 +358,7 @@ _hash_init(Relation rel, double num_tuples, ForkNumber forkNum)
358358
data_width = sizeof(uint32);
359359
item_width = MAXALIGN(sizeof(IndexTupleData)) + MAXALIGN(data_width) +
360360
sizeof(ItemIdData); /* include the line pointer */
361-
ffactor = RelationGetTargetPageUsage(rel, HASH_DEFAULT_FILLFACTOR) / item_width;
361+
ffactor = HashGetTargetPageUsage(rel) / item_width;
362362
/* keep to a sane range */
363363
if (ffactor < 10)
364364
ffactor = 10;

‎src/backend/access/hash/hashutil.c

Lines changed: 8 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -289,7 +289,14 @@ _hash_checkpage(Relation rel, Buffer buf, int flags)
289289
bytea *
290290
hashoptions(Datum reloptions, bool validate)
291291
{
292-
return default_reloptions(reloptions, validate, RELOPT_KIND_HASH);
292+
static const relopt_parse_elt tab[] = {
293+
{"fillfactor", RELOPT_TYPE_INT, offsetof(HashOptions, fillfactor)},
294+
};
295+
296+
return (bytea *) build_reloptions(reloptions, validate,
297+
RELOPT_KIND_HASH,
298+
sizeof(HashOptions),
299+
tab, lengthof(tab));
293300
}
294301

295302
/*

‎src/backend/access/nbtree/nbtree.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -816,7 +816,7 @@ _bt_vacuum_needs_cleanup(IndexVacuumInfo *info)
816816
}
817817
else
818818
{
819-
StdRdOptions *relopts;
819+
BTOptions *relopts;
820820
float8 cleanup_scale_factor;
821821
float8 prev_num_heap_tuples;
822822

@@ -827,7 +827,7 @@ _bt_vacuum_needs_cleanup(IndexVacuumInfo *info)
827827
* tuples exceeds vacuum_cleanup_index_scale_factor fraction of
828828
* original tuples count.
829829
*/
830-
relopts = (StdRdOptions *) info->index->rd_options;
830+
relopts = (BTOptions *) info->index->rd_options;
831831
cleanup_scale_factor = (relopts &&
832832
relopts->vacuum_cleanup_index_scale_factor >= 0)
833833
? relopts->vacuum_cleanup_index_scale_factor

‎src/backend/access/nbtree/nbtsort.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -716,8 +716,8 @@ _bt_pagestate(BTWriteState *wstate, uint32 level)
716716
if (level > 0)
717717
state->btps_full = (BLCKSZ * (100 - BTREE_NONLEAF_FILLFACTOR) / 100);
718718
else
719-
state->btps_full = RelationGetTargetPageFreeSpace(wstate->index,
720-
BTREE_DEFAULT_FILLFACTOR);
719+
state->btps_full = BTGetTargetPageFreeSpace(wstate->index);
720+
721721
/* no parent level, yet */
722722
state->btps_next = NULL;
723723

‎src/backend/access/nbtree/nbtsplitloc.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -167,7 +167,7 @@ _bt_findsplitloc(Relation rel,
167167

168168
/* Count up total space in data items before actually scanning 'em */
169169
olddataitemstotal = rightspace - (int) PageGetExactFreeSpace(page);
170-
leaffillfactor = RelationGetFillFactor(rel, BTREE_DEFAULT_FILLFACTOR);
170+
leaffillfactor = BTGetFillFactor(rel);
171171

172172
/* Passed-in newitemsz is MAXALIGNED but does not include line pointer */
173173
newitemsz += sizeof(ItemIdData);

‎src/backend/access/nbtree/nbtutils.c

Lines changed: 12 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2014,7 +2014,18 @@ BTreeShmemInit(void)
20142014
bytea *
20152015
btoptions(Datum reloptions, bool validate)
20162016
{
2017-
return default_reloptions(reloptions, validate, RELOPT_KIND_BTREE);
2017+
static const relopt_parse_elt tab[] = {
2018+
{"fillfactor", RELOPT_TYPE_INT, offsetof(BTOptions, fillfactor)},
2019+
{"vacuum_cleanup_index_scale_factor", RELOPT_TYPE_REAL,
2020+
offsetof(BTOptions, vacuum_cleanup_index_scale_factor)}
2021+
2022+
};
2023+
2024+
return (bytea *) build_reloptions(reloptions, validate,
2025+
RELOPT_KIND_BTREE,
2026+
sizeof(BTOptions),
2027+
tab, lengthof(tab));
2028+
20182029
}
20192030

20202031
/*

‎src/backend/access/spgist/spgutils.c

Lines changed: 10 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -408,8 +408,7 @@ SpGistGetBuffer(Relation index, int flags, int needSpace, bool *isNew)
408408
* related to the ones already on it. But fillfactor mustn't cause an
409409
* error for requests that would otherwise be legal.
410410
*/
411-
needSpace += RelationGetTargetPageFreeSpace(index,
412-
SPGIST_DEFAULT_FILLFACTOR);
411+
needSpace += SpGistGetTargetPageFreeSpace(index);
413412
needSpace = Min(needSpace, SPGIST_PAGE_CAPACITY);
414413

415414
/* Get the cache entry for this flags setting */
@@ -586,7 +585,15 @@ SpGistInitMetapage(Page page)
586585
bytea *
587586
spgoptions(Datum reloptions, bool validate)
588587
{
589-
return default_reloptions(reloptions, validate, RELOPT_KIND_SPGIST);
588+
static const relopt_parse_elt tab[] = {
589+
{"fillfactor", RELOPT_TYPE_INT, offsetof(SpGistOptions, fillfactor)},
590+
};
591+
592+
return (bytea *) build_reloptions(reloptions, validate,
593+
RELOPT_KIND_SPGIST,
594+
sizeof(SpGistOptions),
595+
tab, lengthof(tab));
596+
590597
}
591598

592599
/*

‎src/include/access/brin.h

Lines changed: 6 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -37,11 +37,15 @@ typedef struct BrinStatsData
3737

3838
#define BRIN_DEFAULT_PAGES_PER_RANGE 128
3939
#define BrinGetPagesPerRange(relation) \
40-
((relation)->rd_options ? \
40+
(AssertMacro(relation->rd_rel->relkind == RELKIND_INDEX && \
41+
relation->rd_rel->relam == BRIN_AM_OID), \
42+
(relation)->rd_options ? \
4143
((BrinOptions *) (relation)->rd_options)->pagesPerRange : \
4244
BRIN_DEFAULT_PAGES_PER_RANGE)
4345
#define BrinGetAutoSummarize(relation) \
44-
((relation)->rd_options ? \
46+
(AssertMacro(relation->rd_rel->relkind == RELKIND_INDEX && \
47+
relation->rd_rel->relam == BRIN_AM_OID), \
48+
(relation)->rd_options ? \
4549
((BrinOptions *) (relation)->rd_options)->autosummarize : \
4650
false)
4751

‎src/include/access/gin_private.h

Lines changed: 7 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -14,6 +14,7 @@
1414
#include "access/gin.h"
1515
#include "access/ginblock.h"
1616
#include "access/itup.h"
17+
#include "catalog/pg_am_d.h"
1718
#include "fmgr.h"
1819
#include "storage/bufmgr.h"
1920
#include "lib/rbtree.h"
@@ -30,10 +31,14 @@ typedef struct GinOptions
3031

3132
#define GIN_DEFAULT_USE_FASTUPDATE true
3233
#define GinGetUseFastUpdate(relation) \
33-
((relation)->rd_options ? \
34+
(AssertMacro(relation->rd_rel->relkind == RELKIND_INDEX && \
35+
relation->rd_rel->relam == GIN_AM_OID), \
36+
(relation)->rd_options ? \
3437
((GinOptions *) (relation)->rd_options)->useFastUpdate : GIN_DEFAULT_USE_FASTUPDATE)
3538
#define GinGetPendingListCleanupSize(relation) \
36-
((relation)->rd_options && \
39+
(AssertMacro(relation->rd_rel->relkind == RELKIND_INDEX && \
40+
relation->rd_rel->relam == GIN_AM_OID), \
41+
(relation)->rd_options && \
3742
((GinOptions *) (relation)->rd_options)->pendingListCleanupSize != -1 ? \
3843
((GinOptions *) (relation)->rd_options)->pendingListCleanupSize : \
3944
gin_pending_list_limit)

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