14 KiB
14 KiB
Summary
**No review yet**Minimized query
CREATE TABLE T (
a INTEGER,
b TEXT,
c INTEGER
);
INSERT INTO T VALUES (1,'a',NULL), (2,'b',1), (3,'c',2);
WITH RECURSIVE d(a,b,c,e) AS (
SELECT *,1 FROM T WHERE c IS NULL
UNION ALL
SELECT T.a,T.b,T.c,d.e+1
FROM T JOIN d ON T.c=d.a
)
SELECT * FROM d;
SELECT SUM(c) FROM T;
ALTER TABLE T RENAME TO T_r9513;
Actual output
Memory Used: 78968 (max 80520) bytes
Number of Outstanding Allocations: 163 (max 177)
Number of Pcache Overflow Bytes: 16928 (max 16928) bytes
Largest Allocation: 48000 bytes
Largest Pcache Allocation: 4360 bytes
Lookaside Slots Used: 32 (max 88)
Successful lookaside attempts: 107
Lookaside failures due to size: 0
Lookaside failures due to OOM: 0
Pager Heap Usage: 13592 bytes
Page cache hits: 4
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Schema Heap Usage: 1048 bytes
Statement Heap/Lookaside Usage: 2464 bytes
Fullscan Steps: 0
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 30
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 2464
Bytes received by read(): 6887
Bytes sent to write(): 0
Read() system calls: 14
Write() system calls: 0
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
Memory Used: 76528 (max 82208) bytes
Number of Outstanding Allocations: 152 (max 177)
Number of Pcache Overflow Bytes: 16928 (max 16928) bytes
Largest Allocation: 48000 bytes
Largest Pcache Allocation: 4360 bytes
Lookaside Slots Used: 41 (max 88)
Successful lookaside attempts: 140
Lookaside failures due to size: 0
Lookaside failures due to OOM: 0
Pager Heap Usage: 13592 bytes
Page cache hits: 2
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Schema Heap Usage: 1072 bytes
Statement Heap/Lookaside Usage: 3296 bytes
Fullscan Steps: 0
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 35
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 3296
Bytes received by read(): 6981
Bytes sent to write(): 1293
Read() system calls: 16
Write() system calls: 1
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
1|a||1
2|b|1|2
3|c|2|3
Memory Used: 81104 (max 288496) bytes
Number of Outstanding Allocations: 176 (max 206)
Number of Pcache Overflow Bytes: 16928 (max 33344) bytes
Largest Allocation: 87200 bytes
Largest Pcache Allocation: 4360 bytes
Lookaside Slots Used: 50 (max 123)
Successful lookaside attempts: 278
Lookaside failures due to size: 3
Lookaside failures due to OOM: 61
Pager Heap Usage: 13592 bytes
Page cache hits: 3
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Schema Heap Usage: 1072 bytes
Statement Heap/Lookaside Usage: 20744 bytes
Fullscan Steps: 2
Sort Operations: 0
Autoindex Inserts: 2
Bloom filter bypass taken: 1/3
Virtual Machine Steps: 149
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 20744
Bytes received by read(): 7078
Bytes sent to write(): 2589
Read() system calls: 18
Write() system calls: 2
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
3
Memory Used: 76528 (max 288496) bytes
Number of Outstanding Allocations: 152 (max 206)
Number of Pcache Overflow Bytes: 16928 (max 33344) bytes
Largest Allocation: 87200 bytes
Largest Pcache Allocation: 4360 bytes
Lookaside Slots Used: 41 (max 123)
Successful lookaside attempts: 306
Lookaside failures due to size: 3
Lookaside failures due to OOM: 61
Pager Heap Usage: 13592 bytes
Page cache hits: 2
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Schema Heap Usage: 1072 bytes
Statement Heap/Lookaside Usage: 3296 bytes
Fullscan Steps: 2
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 19
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 3296
Bytes received by read(): 7175
Bytes sent to write(): 3955
Read() system calls: 20
Write() system calls: 3
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
Memory Used: 191424 (max 563832) bytes
Number of Outstanding Allocations: 196 (max 272)
Number of Pcache Overflow Bytes: 25136 (max 49760) bytes
Largest Allocation: 87200 bytes
Largest Pcache Allocation: 4360 bytes
Lookaside Slots Used: 102 (max 123)
Successful lookaside attempts: 644
Lookaside failures due to size: 6
Lookaside failures due to OOM: 225
Pager Heap Usage: 22808 bytes
Page cache hits: 10
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Schema Heap Usage: 1048 bytes
Statement Heap/Lookaside Usage: 47752 bytes
Fullscan Steps: 0
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 125
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 47752
Bytes received by read(): 7272
Bytes sent to write(): 5256
Read() system calls: 23
Write() system calls: 4
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
Expectation
Memory Used: 79464 (max 81000) bytes
Number of Outstanding Allocations: 173 (max 187)
Number of Pcache Overflow Bytes: 16936 (max 16936) bytes
Largest Allocation: 48000 bytes
Largest Pcache Allocation: 4368 bytes
Lookaside Slots Used: 48 (max 97)
Successful lookaside attempts: 116
Lookaside failures due to size: 0
Lookaside failures due to OOM: 0
Pager Heap Usage: 13608 bytes
Page cache hits: 4
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Temporary data spilled to disk: 0
Schema Heap Usage: 880 bytes
Statement Heap/Lookaside Usage: 2336 bytes
Fullscan Steps: 0
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 30
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 2336
Bytes received by read(): 7407
Bytes sent to write(): 0
Read() system calls: 14
Write() system calls: 0
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
Memory Used: 77136 (max 82768) bytes
Number of Outstanding Allocations: 162 (max 187)
Number of Pcache Overflow Bytes: 16936 (max 16936) bytes
Largest Allocation: 48000 bytes
Largest Pcache Allocation: 4368 bytes
Lookaside Slots Used: 58 (max 97)
Successful lookaside attempts: 153
Lookaside failures due to size: 0
Lookaside failures due to OOM: 0
Pager Heap Usage: 13608 bytes
Page cache hits: 2
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Temporary data spilled to disk: 0
Schema Heap Usage: 888 bytes
Statement Heap/Lookaside Usage: 4496 bytes
Fullscan Steps: 0
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 35
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 4496
Bytes received by read(): 7501
Bytes sent to write(): 1331
Read() system calls: 16
Write() system calls: 1
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
1|a||1
2|b|1|2
3|c|2|3
Memory Used: 81320 (max 288992) bytes
Number of Outstanding Allocations: 177 (max 222)
Number of Pcache Overflow Bytes: 16936 (max 33336) bytes
Largest Allocation: 87360 bytes
Largest Pcache Allocation: 4368 bytes
Lookaside Slots Used: 61 (max 123)
Successful lookaside attempts: 266
Lookaside failures due to size: 3
Lookaside failures due to OOM: 73
Pager Heap Usage: 13608 bytes
Page cache hits: 3
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Temporary data spilled to disk: 0
Schema Heap Usage: 888 bytes
Statement Heap/Lookaside Usage: 17568 bytes
Fullscan Steps: 2
Sort Operations: 0
Autoindex Inserts: 2
Bloom filter bypass taken: 1/3
Virtual Machine Steps: 150
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 17568
Bytes received by read(): 7598
Bytes sent to write(): 2665
Read() system calls: 18
Write() system calls: 2
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
3
Memory Used: 77136 (max 288992) bytes
Number of Outstanding Allocations: 162 (max 222)
Number of Pcache Overflow Bytes: 16936 (max 33336) bytes
Largest Allocation: 87360 bytes
Largest Pcache Allocation: 4368 bytes
Lookaside Slots Used: 56 (max 123)
Successful lookaside attempts: 293
Lookaside failures due to size: 3
Lookaside failures due to OOM: 73
Pager Heap Usage: 13608 bytes
Page cache hits: 2
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Temporary data spilled to disk: 0
Schema Heap Usage: 888 bytes
Statement Heap/Lookaside Usage: 3168 bytes
Fullscan Steps: 2
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 19
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 3168
Bytes received by read(): 7695
Bytes sent to write(): 4069
Read() system calls: 20
Write() system calls: 3
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
Memory Used: 191456 (max 563448) bytes
Number of Outstanding Allocations: 182 (max 243)
Number of Pcache Overflow Bytes: 25136 (max 49736) bytes
Largest Allocation: 87360 bytes
Largest Pcache Allocation: 4368 bytes
Lookaside Slots Used: 97 (max 123)
Successful lookaside attempts: 632
Lookaside failures due to size: 6
Lookaside failures due to OOM: 182
Pager Heap Usage: 22840 bytes
Page cache hits: 10
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Temporary data spilled to disk: 0
Schema Heap Usage: 880 bytes
Statement Heap/Lookaside Usage: 35752 bytes
Fullscan Steps: 0
Sort Operations: 0
Autoindex Inserts: 0
Virtual Machine Steps: 125
Reprepare operations: 0
Number of times run: 1
Memory used by prepared stmt: 35752
Bytes received by read(): 7836
Bytes sent to write(): 5408
Read() system calls: 24
Write() system calls: 4
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
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