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Force for rum.sql and rum_hash.sql queries without ORDER BY to use bitmap scan
1 parent c5be71b commit 9f78bdc

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4 files changed

+22
-10
lines changed

4 files changed

+22
-10
lines changed

‎expected/rum.out

Lines changed: 9 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -8,6 +8,7 @@ CREATE INDEX rumidx ON test_rum USING rum (a rum_tsvector_ops);
88
CREATE INDEX failed_rumidx ON test_rum USING rum (a rum_tsvector_addon_ops);
99
ERROR: additional information attribute "a" is not found in index
1010
SET enable_seqscan=off;
11+
SET enable_indexscan=off;
1112
explain (costs off)
1213
SELECT count(*) FROM test_rum WHERE a @@ to_tsquery('pg_catalog.english', 'ever|wrote');
1314
QUERY PLAN
@@ -35,12 +36,14 @@ ORDER BY a <=> to_tsquery('pg_catalog.english', 'ever|wrote');
3536
explain (costs off)
3637
SELECT count(*) FROM test_rum WHERE a @@ to_tsquery('pg_catalog.english',
3738
'def <-> fgr');
38-
QUERY PLAN
39-
-----------------------------------------------------------
39+
QUERY PLAN
40+
-----------------------------------------------------------------
4041
Aggregate
41-
-> Index Scan using rumidx on test_rum
42-
Index Cond: (a @@ '''def'' <-> ''fgr'''::tsquery)
43-
(3 rows)
42+
-> Bitmap Heap Scan on test_rum
43+
Recheck Cond: (a @@ '''def'' <-> ''fgr'''::tsquery)
44+
-> Bitmap Index Scan on rumidx
45+
Index Cond: (a @@ '''def'' <-> ''fgr'''::tsquery)
46+
(5 rows)
4447

4548
SELECT count(*) FROM test_rum WHERE a @@ to_tsquery('pg_catalog.english', 'ever|wrote');
4649
count
@@ -288,6 +291,7 @@ DELETE FROM tst WHERE i = 5;
288291
VACUUM tst;
289292
INSERT INTO tst SELECT i%10, to_tsvector('simple', substr(md5(i::text), 1, 1)) FROM generate_series(14001,15000) i;
290293
set enable_bitmapscan=off;
294+
SET enable_indexscan=on;
291295
explain (costs off)
292296
SELECT a <=> to_tsquery('pg_catalog.english', 'w:*'), *
293297
FROM test_rum

‎expected/rum_hash.out

Lines changed: 9 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -7,6 +7,7 @@ CREATE INDEX rumhashidx ON test_rum_hash USING rum (a rum_tsvector_hash_ops);
77
CREATE INDEX failed_rumidx ON test_rum_hash USING rum (a rum_tsvector_addon_ops);
88
ERROR: additional information attribute "a" is not found in index
99
SET enable_seqscan=off;
10+
SET enable_indexscan=off;
1011
explain (costs off)
1112
SELECT count(*) FROM test_rum_hash WHERE a @@ to_tsquery('pg_catalog.english', 'ever|wrote');
1213
QUERY PLAN
@@ -34,12 +35,14 @@ ORDER BY a <=> to_tsquery('pg_catalog.english', 'ever|wrote');
3435
explain (costs off)
3536
SELECT count(*) FROM test_rum_hash WHERE a @@ to_tsquery('pg_catalog.english',
3637
'def <-> fgr');
37-
QUERY PLAN
38-
-----------------------------------------------------------
38+
QUERY PLAN
39+
-----------------------------------------------------------------
3940
Aggregate
40-
-> Index Scan using rumhashidx on test_rum_hash
41-
Index Cond: (a @@ '''def'' <-> ''fgr'''::tsquery)
42-
(3 rows)
41+
-> Bitmap Heap Scan on test_rum_hash
42+
Recheck Cond: (a @@ '''def'' <-> ''fgr'''::tsquery)
43+
-> Bitmap Index Scan on rumhashidx
44+
Index Cond: (a @@ '''def'' <-> ''fgr'''::tsquery)
45+
(5 rows)
4346

4447
SELECT count(*) FROM test_rum_hash WHERE a @@ to_tsquery('pg_catalog.english', 'ever|wrote');
4548
count
@@ -287,6 +290,7 @@ DELETE FROM tst_hash WHERE i = 5;
287290
VACUUM tst_hash;
288291
INSERT INTO tst_hash SELECT i%10, to_tsvector('simple', substr(md5(i::text), 1, 1)) FROM generate_series(14001,15000) i;
289292
set enable_bitmapscan=off;
293+
SET enable_indexscan=on;
290294
explain (costs off)
291295
SELECT a <=> to_tsquery('pg_catalog.english', 'w:*'), *
292296
FROM test_rum_hash

‎sql/rum.sql

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -12,6 +12,7 @@ CREATE INDEX rumidx ON test_rum USING rum (a rum_tsvector_ops);
1212
CREATE INDEX failed_rumidx ON test_rum USING rum (a rum_tsvector_addon_ops);
1313

1414
SET enable_seqscan=off;
15+
SET enable_indexscan=off;
1516

1617
explain (costs off)
1718
SELECT count(*) FROM test_rum WHERE a @@ to_tsquery('pg_catalog.english', 'ever|wrote');
@@ -101,6 +102,7 @@ VACUUM tst;
101102
INSERT INTO tst SELECT i%10, to_tsvector('simple', substr(md5(i::text), 1, 1)) FROM generate_series(14001,15000) i;
102103

103104
set enable_bitmapscan=off;
105+
SET enable_indexscan=on;
104106
explain (costs off)
105107
SELECT a <=> to_tsquery('pg_catalog.english', 'w:*'), *
106108
FROM test_rum

‎sql/rum_hash.sql

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -10,6 +10,7 @@ CREATE INDEX rumhashidx ON test_rum_hash USING rum (a rum_tsvector_hash_ops);
1010
CREATE INDEX failed_rumidx ON test_rum_hash USING rum (a rum_tsvector_addon_ops);
1111

1212
SET enable_seqscan=off;
13+
SET enable_indexscan=off;
1314

1415
explain (costs off)
1516
SELECT count(*) FROM test_rum_hash WHERE a @@ to_tsquery('pg_catalog.english', 'ever|wrote');
@@ -99,6 +100,7 @@ VACUUM tst_hash;
99100
INSERT INTO tst_hash SELECT i%10, to_tsvector('simple', substr(md5(i::text), 1, 1)) FROM generate_series(14001,15000) i;
100101

101102
set enable_bitmapscan=off;
103+
SET enable_indexscan=on;
102104
explain (costs off)
103105
SELECT a <=> to_tsquery('pg_catalog.english', 'w:*'), *
104106
FROM test_rum_hash

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