Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit2e08440

Browse files
committed
pageinspect: Fix failure with hash_bitmap_info() for partitioned indexes
This function reads directly a page from a relation, relying onindex_open() to open the index to read from. Unfortunately, this wouldcrash when using partitioned indexes, as these can be opened withindex_open() but they have no physical pages.Alexander has fixed the module, while I have written the test.Author: Alexander Lakhin, Michael PaquierDiscussion:https://postgr.es/m/18246-f4d9ff7cb3af77e6@postgresql.orgBackpatch-through: 12
1 parentb745f16 commit2e08440

File tree

3 files changed

+14
-2
lines changed

3 files changed

+14
-2
lines changed

‎contrib/pageinspect/expected/hash.out‎

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
11
CREATE TABLE test_hash (a int, b text);
22
INSERT INTO test_hash VALUES (1, 'one');
33
CREATE INDEX test_hash_a_idx ON test_hash USING hash (a);
4+
CREATE TABLE test_hash_part (a int, b int) PARTITION BY RANGE (a);
5+
CREATE INDEX test_hash_part_idx ON test_hash_part USING hash(b);
46
\x
57
SELECT hash_page_type(get_raw_page('test_hash_a_idx', 0));
68
-[ RECORD 1 ]--+---------
@@ -44,6 +46,8 @@ SELECT * FROM hash_bitmap_info('test_hash_a_idx', 5);
4446
ERROR: invalid overflow block number 5
4547
SELECT * FROM hash_bitmap_info('test_hash_a_idx', 6);
4648
ERROR: block number 6 is out of range for relation "test_hash_a_idx"
49+
SELECT * FROM hash_bitmap_info('test_hash_part_idx', 1); -- error
50+
ERROR: "test_hash_part_idx" is not a hash index
4751
SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
4852
lowmask, ovflpoint, firstfree, nmaps, procid, spares, mapp FROM
4953
hash_metapage_info(get_raw_page('test_hash_a_idx', 0));
@@ -203,3 +207,4 @@ SELECT hash_page_type(decode(repeat('00', :block_size), 'hex'));
203207
hash_page_type | unused
204208

205209
DROP TABLE test_hash;
210+
DROP TABLE test_hash_part;

‎contrib/pageinspect/hashfuncs.c‎

Lines changed: 4 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -12,6 +12,7 @@
1212

1313
#include"access/hash.h"
1414
#include"access/htup_details.h"
15+
#include"access/relation.h"
1516
#include"catalog/pg_am.h"
1617
#include"catalog/pg_type.h"
1718
#include"funcapi.h"
@@ -27,6 +28,7 @@ PG_FUNCTION_INFO_V1(hash_page_items);
2728
PG_FUNCTION_INFO_V1(hash_bitmap_info);
2829
PG_FUNCTION_INFO_V1(hash_metapage_info);
2930

31+
#defineIS_INDEX(r) ((r)->rd_rel->relkind == RELKIND_INDEX)
3032
#defineIS_HASH(r) ((r)->rd_rel->relam == HASH_AM_OID)
3133

3234
/* ------------------------------------------------
@@ -417,9 +419,9 @@ hash_bitmap_info(PG_FUNCTION_ARGS)
417419
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
418420
errmsg("must be superuser to use raw page functions")));
419421

420-
indexRel=index_open(indexRelid,AccessShareLock);
422+
indexRel=relation_open(indexRelid,AccessShareLock);
421423

422-
if (!IS_HASH(indexRel))
424+
if (!IS_INDEX(indexRel)|| !IS_HASH(indexRel))
423425
ereport(ERROR,
424426
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
425427
errmsg("\"%s\" is not a %s index",

‎contrib/pageinspect/sql/hash.sql‎

Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2,6 +2,9 @@ CREATE TABLE test_hash (a int, b text);
22
INSERT INTO test_hashVALUES (1,'one');
33
CREATEINDEXtest_hash_a_idxON test_hash USING hash (a);
44

5+
CREATETABLEtest_hash_part (aint, bint) PARTITION BY RANGE (a);
6+
CREATEINDEXtest_hash_part_idxON test_hash_part USING hash(b);
7+
58
\x
69

710
SELECT hash_page_type(get_raw_page('test_hash_a_idx',0));
@@ -21,6 +24,7 @@ SELECT * FROM hash_bitmap_info('test_hash_a_idx', 3);
2124
SELECT*FROM hash_bitmap_info('test_hash_a_idx',4);
2225
SELECT*FROM hash_bitmap_info('test_hash_a_idx',5);
2326
SELECT*FROM hash_bitmap_info('test_hash_a_idx',6);
27+
SELECT*FROM hash_bitmap_info('test_hash_part_idx',1);-- error
2428

2529

2630
SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
@@ -106,3 +110,4 @@ SELECT hash_page_stats(decode(repeat('00', :block_size), 'hex'));
106110
SELECT hash_page_type(decode(repeat('00', :block_size),'hex'));
107111

108112
DROPTABLE test_hash;
113+
DROPTABLE test_hash_part;

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp