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

Commit560564d

Browse files
committed
Enable hash partitioning of text arrays
hash_array_extended() needs to pass PG_GET_COLLATION() to the hashfunction of the element type. Otherwise, the hash function of acollation-aware data type such as text will error out, since theintroduction of nondeterministic collation made hash functions requirea collation, too.The consequence of this is that before this change, hash partitioningusing an array over text in the partition key would not work.Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>Reviewed-by: Michael Paquier <michael@paquier.xyz>Discussion:https://www.postgresql.org/message-id/flat/32c1fdae-95c6-5dc6-058a-a90330a3b621%40enterprisedb.com
1 parent37d2ff3 commit560564d

File tree

3 files changed

+77
-1
lines changed

3 files changed

+77
-1
lines changed

‎src/backend/utils/adt/arrayfuncs.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -4071,7 +4071,7 @@ hash_array_extended(PG_FUNCTION_ARGS)
40714071
typalign=typentry->typalign;
40724072

40734073
InitFunctionCallInfoData(*locfcinfo,&typentry->hash_extended_proc_finfo,2,
4074-
InvalidOid,NULL,NULL);
4074+
PG_GET_COLLATION(),NULL,NULL);
40754075

40764076
/* Loop over source data */
40774077
nitems=ArrayGetNItems(ndims,dims);

‎src/test/regress/expected/collate.icu.utf8.out

Lines changed: 50 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1212,6 +1212,30 @@ SELECT * FROM test6 WHERE b = 'äbc' COLLATE ctest_nondet;
12121212
2 | äbc
12131213
(2 rows)
12141214

1215+
-- same with arrays
1216+
CREATE TABLE test6a (a int, b text[]);
1217+
INSERT INTO test6a VALUES (1, ARRAY[U&'\00E4bc']);
1218+
INSERT INTO test6a VALUES (2, ARRAY[U&'\0061\0308bc']);
1219+
SELECT * FROM test6a;
1220+
a | b
1221+
---+-------
1222+
1 | {äbc}
1223+
2 | {äbc}
1224+
(2 rows)
1225+
1226+
SELECT * FROM test6a WHERE b = ARRAY['äbc'] COLLATE ctest_det;
1227+
a | b
1228+
---+-------
1229+
1 | {äbc}
1230+
(1 row)
1231+
1232+
SELECT * FROM test6a WHERE b = ARRAY['äbc'] COLLATE ctest_nondet;
1233+
a | b
1234+
---+-------
1235+
1 | {äbc}
1236+
2 | {äbc}
1237+
(2 rows)
1238+
12151239
CREATE COLLATION case_sensitive (provider = icu, locale = '');
12161240
CREATE COLLATION case_insensitive (provider = icu, locale = '@colStrength=secondary', deterministic = false);
12171241
SELECT 'abc' <= 'ABC' COLLATE case_sensitive, 'abc' >= 'ABC' COLLATE case_sensitive;
@@ -1839,6 +1863,19 @@ SELECT (SELECT count(*) FROM test22_0) = (SELECT count(*) FROM test22_1);
18391863
t
18401864
(1 row)
18411865

1866+
-- same with arrays
1867+
CREATE TABLE test22a (a int, b text[] COLLATE case_sensitive) PARTITION BY HASH (b);
1868+
CREATE TABLE test22a_0 PARTITION OF test22a FOR VALUES WITH (MODULUS 2, REMAINDER 0);
1869+
CREATE TABLE test22a_1 PARTITION OF test22a FOR VALUES WITH (MODULUS 2, REMAINDER 1);
1870+
INSERT INTO test22a VALUES (1, ARRAY['def']);
1871+
INSERT INTO test22a VALUES (2, ARRAY['DEF']);
1872+
-- they end up in different partitions
1873+
SELECT (SELECT count(*) FROM test22a_0) = (SELECT count(*) FROM test22a_1);
1874+
?column?
1875+
----------
1876+
t
1877+
(1 row)
1878+
18421879
CREATE TABLE test23 (a int, b text COLLATE case_insensitive) PARTITION BY HASH (b);
18431880
CREATE TABLE test23_0 PARTITION OF test23 FOR VALUES WITH (MODULUS 2, REMAINDER 0);
18441881
CREATE TABLE test23_1 PARTITION OF test23 FOR VALUES WITH (MODULUS 2, REMAINDER 1);
@@ -1851,6 +1888,19 @@ SELECT (SELECT count(*) FROM test23_0) <> (SELECT count(*) FROM test23_1);
18511888
t
18521889
(1 row)
18531890

1891+
-- same with arrays
1892+
CREATE TABLE test23a (a int, b text[] COLLATE case_insensitive) PARTITION BY HASH (b);
1893+
CREATE TABLE test23a_0 PARTITION OF test23a FOR VALUES WITH (MODULUS 2, REMAINDER 0);
1894+
CREATE TABLE test23a_1 PARTITION OF test23a FOR VALUES WITH (MODULUS 2, REMAINDER 1);
1895+
INSERT INTO test23a VALUES (1, ARRAY['def']);
1896+
INSERT INTO test23a VALUES (2, ARRAY['DEF']);
1897+
-- they end up in the same partition (but it's platform-dependent which one)
1898+
SELECT (SELECT count(*) FROM test23a_0) <> (SELECT count(*) FROM test23a_1);
1899+
?column?
1900+
----------
1901+
t
1902+
(1 row)
1903+
18541904
CREATE TABLE test30 (a int, b char(3) COLLATE case_insensitive) PARTITION BY LIST (b);
18551905
CREATE TABLE test30_1 PARTITION OF test30 FOR VALUES IN ('abc');
18561906
INSERT INTO test30 VALUES (1, 'abc');

‎src/test/regress/sql/collate.icu.utf8.sql

Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -478,6 +478,14 @@ SELECT * FROM test6;
478478
SELECT*FROM test6WHERE b='äbc' COLLATE ctest_det;
479479
SELECT*FROM test6WHERE b='äbc' COLLATE ctest_nondet;
480480

481+
-- same with arrays
482+
CREATETABLEtest6a (aint, btext[]);
483+
INSERT INTO test6aVALUES (1, ARRAY[U&'\00E4bc']);
484+
INSERT INTO test6aVALUES (2, ARRAY[U&'\0061\0308bc']);
485+
SELECT*FROM test6a;
486+
SELECT*FROM test6aWHERE b= ARRAY['äbc'] COLLATE ctest_det;
487+
SELECT*FROM test6aWHERE b= ARRAY['äbc'] COLLATE ctest_nondet;
488+
481489
CREATE COLLATION case_sensitive (provider= icu, locale='');
482490
CREATE COLLATION case_insensitive (provider= icu, locale='@colStrength=secondary', deterministic= false);
483491

@@ -680,6 +688,15 @@ INSERT INTO test22 VALUES (2, 'DEF');
680688
-- they end up in different partitions
681689
SELECT (SELECTcount(*)FROM test22_0)= (SELECTcount(*)FROM test22_1);
682690

691+
-- same with arrays
692+
CREATETABLEtest22a (aint, btext[] COLLATE case_sensitive) PARTITION BY HASH (b);
693+
CREATETABLEtest22a_0 PARTITION OF test22a FORVALUES WITH (MODULUS2, REMAINDER0);
694+
CREATETABLEtest22a_1 PARTITION OF test22a FORVALUES WITH (MODULUS2, REMAINDER1);
695+
INSERT INTO test22aVALUES (1, ARRAY['def']);
696+
INSERT INTO test22aVALUES (2, ARRAY['DEF']);
697+
-- they end up in different partitions
698+
SELECT (SELECTcount(*)FROM test22a_0)= (SELECTcount(*)FROM test22a_1);
699+
683700
CREATETABLEtest23 (aint, btext COLLATE case_insensitive) PARTITION BY HASH (b);
684701
CREATETABLEtest23_0 PARTITION OF test23 FORVALUES WITH (MODULUS2, REMAINDER0);
685702
CREATETABLEtest23_1 PARTITION OF test23 FORVALUES WITH (MODULUS2, REMAINDER1);
@@ -688,6 +705,15 @@ INSERT INTO test23 VALUES (2, 'DEF');
688705
-- they end up in the same partition (but it's platform-dependent which one)
689706
SELECT (SELECTcount(*)FROM test23_0)<> (SELECTcount(*)FROM test23_1);
690707

708+
-- same with arrays
709+
CREATETABLEtest23a (aint, btext[] COLLATE case_insensitive) PARTITION BY HASH (b);
710+
CREATETABLEtest23a_0 PARTITION OF test23a FORVALUES WITH (MODULUS2, REMAINDER0);
711+
CREATETABLEtest23a_1 PARTITION OF test23a FORVALUES WITH (MODULUS2, REMAINDER1);
712+
INSERT INTO test23aVALUES (1, ARRAY['def']);
713+
INSERT INTO test23aVALUES (2, ARRAY['DEF']);
714+
-- they end up in the same partition (but it's platform-dependent which one)
715+
SELECT (SELECTcount(*)FROM test23a_0)<> (SELECTcount(*)FROM test23a_1);
716+
691717
CREATETABLEtest30 (aint, bchar(3) COLLATE case_insensitive) PARTITION BY LIST (b);
692718
CREATETABLEtest30_1 PARTITION OF test30 FORVALUESIN ('abc');
693719
INSERT INTO test30VALUES (1,'abc');

0 commit comments

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