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Comment:By default, do not use memory mapping to access the temporary files used for external sorts. The old behaviour (to use memory mapping by default) may be restored by building with SQLITE_ENABLE_SORTER_MMAP defined.
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SHA3-256: 306694dfb462f9d1f128461e7a8f15a0bb9b21fbc696caa1832f4b20749490d1
User & Date: dan 2021-08-12 14:22:30
Context
2021-08-17
19:59
Fix an off-by-one error in the error-handling logic of the Lemon parser-generator. This does not affect SQLite. Forum cff80737bf. (check-in: 7cca8080 user: drh tags: trunk)
2021-08-12
14:22
By default, do not use memory mapping to access the temporary files used for external sorts. The old behaviour (to use memory mapping by default) may be restored by building with SQLITE_ENABLE_SORTER_MMAP defined. (check-in: 306694df user: dan tags: trunk)
2021-08-11
18:43
During DELETE, if an index entry is missing, do not raise the SQLITE_CORRUPT_INDEX error (added by [f339f31f9e9a856b]) if in "PRAGMA writable_schema=ON" mode. (check-in: 19e56291 user: drh tags: trunk)
Changes
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Changes to src/main.c.

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  assert( sizeof(db->aLimit)==sizeof(aHardLimit) );
  memcpy(db->aLimit, aHardLimit, sizeof(db->aLimit));
  db->aLimit[SQLITE_LIMIT_WORKER_THREADS] = SQLITE_DEFAULT_WORKER_THREADS;
  db->autoCommit = 1;
  db->nextAutovac = -1;
  db->szMmap = sqlite3GlobalConfig.szMmap;
  db->nextPagesize = 0;






  db->nMaxSorterMmap = 0x7FFFFFFF;

  db->flags |= SQLITE_ShortColNames
                 | SQLITE_EnableTrigger
                 | SQLITE_EnableView
                 | SQLITE_CacheSpill
#if !defined(SQLITE_TRUSTED_SCHEMA) || SQLITE_TRUSTED_SCHEMA+0!=0
                 | SQLITE_TrustedSchema
#endif







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  assert( sizeof(db->aLimit)==sizeof(aHardLimit) );
  memcpy(db->aLimit, aHardLimit, sizeof(db->aLimit));
  db->aLimit[SQLITE_LIMIT_WORKER_THREADS] = SQLITE_DEFAULT_WORKER_THREADS;
  db->autoCommit = 1;
  db->nextAutovac = -1;
  db->szMmap = sqlite3GlobalConfig.szMmap;
  db->nextPagesize = 0;
#ifdef SQLITE_ENABLE_SORTER_MMAP
  /* Beginning with version 3.37.0, using the VFS xFetch() API to memory-map 
  ** the temporary files used to do external sorts (see code in vdbesort.c)
  ** is disabled. It can still be used either by defining
  ** SQLITE_ENABLE_SORTER_MMAP at compile time or by using the
  ** SQLITE_TESTCTRL_SORTER_MMAP test-control at runtime. */
  db->nMaxSorterMmap = 0x7FFFFFFF;
#endif
  db->flags |= SQLITE_ShortColNames
                 | SQLITE_EnableTrigger
                 | SQLITE_EnableView
                 | SQLITE_CacheSpill
#if !defined(SQLITE_TRUSTED_SCHEMA) || SQLITE_TRUSTED_SCHEMA+0!=0
                 | SQLITE_TrustedSchema
#endif

Changes to test/releasetest_data.tcl.

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    -O6
    -DSQLITE_ENABLE_FTS4=1
    -DSQLITE_ENABLE_RTREE=1
    -DSQLITE_ENABLE_STAT4
    -DSQLITE_ENABLE_RBU
    -DSQLITE_MAX_ATTACHED=125
    -DSQLITE_MAX_MMAP_SIZE=12884901888

    -DLONGDOUBLE_TYPE=double
    --enable-session
  }
  "Device-One" {
    -O2
    -DSQLITE_DEBUG=1
    -DSQLITE_DEFAULT_AUTOVACUUM=1







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    -O6
    -DSQLITE_ENABLE_FTS4=1
    -DSQLITE_ENABLE_RTREE=1
    -DSQLITE_ENABLE_STAT4
    -DSQLITE_ENABLE_RBU
    -DSQLITE_MAX_ATTACHED=125
    -DSQLITE_MAX_MMAP_SIZE=12884901888
    -DSQLITE_ENABLE_SORTER_MMAP=1
    -DLONGDOUBLE_TYPE=double
    --enable-session
  }
  "Device-One" {
    -O2
    -DSQLITE_DEBUG=1
    -DSQLITE_DEFAULT_AUTOVACUUM=1