94 lines
2.9 KiB
Markdown
94 lines
2.9 KiB
Markdown
## Summary
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<!--Explain briefly what goes wrong and explain why you believe this is a bug and not the intended behavior of SQLite (if it is not a crash).-->**No review yet**
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## Minimized query
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```sql
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.scanstats off
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PRAGMA full_column_names = NO;
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PRAGMA encoding;
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PRAGMA fullsync = YES;
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.stats
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CREATE TABLE "v"(b, d, e);
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CREATE TABLE u(a, b, c);
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ANALYZE sqlite_master;
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INSERT INTO "sqlite_stat1" VALUES('u','uab','40000 400 1');
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INSERT INTO "sqlite_stat1" VALUES('v','vbde','40000 400 1 1');
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INSERT INTO "sqlite_stat1" VALUES('v','ve','40000 21');
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CREATE INDEX uab on u(a, b);
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CREATE INDEX ve on v(e);
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CREATE INDEX vbde on v(b,d,e);
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DROP TABLE IF EXISTS sqlite_stat4;
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ANALYZE sqlite_master;
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ALTER TABLE u ADD COLUMN extra_8479 DATETIME DEFAULT (random());
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REINDEX v;
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SELECT * FROM u WHERE b = (SELECT GROUP_CONCAT(b) FROM u);
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```
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## Actual output
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```sql
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UTF-8
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Memory Used: 67704 (max 67744) bytes
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Number of Outstanding Allocations: 141 (max 142)
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Number of Pcache Overflow Bytes: 8464 (max 8464) bytes
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Largest Allocation: 48000 bytes
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Largest Pcache Allocation: 4360 bytes
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Lookaside Slots Used: 32 (max 76)
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Successful lookaside attempts: 96
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Lookaside failures due to size: 0
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Lookaside failures due to OOM: 0
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Pager Heap Usage: 9248 bytes
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Page cache hits: 0
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Page cache misses: 0
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Page cache writes: 0
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Page cache spills: 0
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Schema Heap Usage: 736 bytes
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Statement Heap/Lookaside Usage: 0 bytes
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Bytes received by read(): 6938
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Bytes sent to write(): 55
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Read() system calls: 13
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Write() system calls: 2
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Bytes read from storage: 0
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Bytes written to storage: 0
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Cancelled write bytes: 0
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```
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## Expectation
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```sql
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UTF-8
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Memory Used: 68416 (max 68448) bytes
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Number of Outstanding Allocations: 151 (max 152)
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Number of Pcache Overflow Bytes: 8472 (max 8472) bytes
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Largest Allocation: 48000 bytes
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Largest Pcache Allocation: 4368 bytes
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Lookaside Slots Used: 48 (max 87)
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Successful lookaside attempts: 107
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Lookaside failures due to size: 0
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Lookaside failures due to OOM: 0
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Pager Heap Usage: 9256 bytes
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Page cache hits: 0
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Page cache misses: 0
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Page cache writes: 0
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Page cache spills: 0
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Temporary data spilled to disk: 0
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Schema Heap Usage: 632 bytes
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Statement Heap/Lookaside Usage: 0 bytes
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Bytes received by read(): 7714
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Bytes sent to write(): 55
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Read() system calls: 14
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Write() system calls: 2
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Bytes read from storage: 0
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Bytes written to storage: 0
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Cancelled write bytes: 0
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```
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## Flag
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```
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```
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