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Overview
Comment: | Add the SQLITE_CONFIG_STMTJRNL_SPILL option for sqlite3_config(). |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
b6c4202432dc96f8f1740f52d0bf8721 |
User & Date: | drh 2016-03-07 17:37:37.281 |
Context
2016-03-07
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19:08 | Avoid a NULL pointer dereference following an OOM while generating code for IN operators on virtual tables. (check-in: c924008692 user: drh tags: trunk) | |
17:49 | Merge the virtual table query planner enhancement, the RTREE cost estimate fix, and the statement journal spill delay enhancement from trunk. (check-in: 17fd8f3cf0 user: drh tags: sessions) | |
17:39 | Add a new row type to RBU (a peer of insert, update and delete) - "delete then insert". (Closed-Leaf check-in: 169311c85b user: dan tags: rbu-delete-then-insert) | |
17:37 | Add the SQLITE_CONFIG_STMTJRNL_SPILL option for sqlite3_config(). (check-in: b6c4202432 user: drh tags: trunk) | |
2016-03-05
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21:32 | Fix a problem in the previous commit affecting queries with three or more tables joined together to the right of a LEFT or CROSS JOIN operator. (check-in: d8d89d69a4 user: dan tags: trunk) | |
Changes
Changes to src/global.c.
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155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | /* The minimum PMA size is set to this value multiplied by the database ** page size in bytes. */ #ifndef SQLITE_SORTER_PMASZ # define SQLITE_SORTER_PMASZ 250 #endif /* ** The following singleton contains the global configuration for ** the SQLite library. */ SQLITE_WSD struct Sqlite3Config sqlite3Config = { SQLITE_DEFAULT_MEMSTATUS, /* bMemstat */ 1, /* bCoreMutex */ SQLITE_THREADSAFE==1, /* bFullMutex */ SQLITE_USE_URI, /* bOpenUri */ SQLITE_ALLOW_COVERING_INDEX_SCAN, /* bUseCis */ 0x7ffffffe, /* mxStrlen */ 0, /* neverCorrupt */ 128, /* szLookaside */ 500, /* nLookaside */ {0,0,0,0,0,0,0,0}, /* m */ {0,0,0,0,0,0,0,0,0}, /* mutex */ {0,0,0,0,0,0,0,0,0,0,0,0,0},/* pcache2 */ (void*)0, /* pHeap */ 0, /* nHeap */ 0, 0, /* mnHeap, mxHeap */ SQLITE_DEFAULT_MMAP_SIZE, /* szMmap */ | > > > > > > > > > > > > > | 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | /* The minimum PMA size is set to this value multiplied by the database ** page size in bytes. */ #ifndef SQLITE_SORTER_PMASZ # define SQLITE_SORTER_PMASZ 250 #endif /* Statement journals spill to disk when their size exceeds the following ** threashold (in bytes). 0 means that statement journals are created and ** written to disk immediately (the default behavior for SQLite versions ** before 3.12.0). -1 means always keep the entire statement journal in ** memory. (The statement journal is also always held entirely in memory ** if journal_mode=MEMORY or if temp_store=MEMORY, regardless of this ** setting.) */ #ifndef SQLITE_STMTJRNL_SPILL # define SQLITE_STMTJRNL_SPILL (64*1024) #endif /* ** The following singleton contains the global configuration for ** the SQLite library. */ SQLITE_WSD struct Sqlite3Config sqlite3Config = { SQLITE_DEFAULT_MEMSTATUS, /* bMemstat */ 1, /* bCoreMutex */ SQLITE_THREADSAFE==1, /* bFullMutex */ SQLITE_USE_URI, /* bOpenUri */ SQLITE_ALLOW_COVERING_INDEX_SCAN, /* bUseCis */ 0x7ffffffe, /* mxStrlen */ 0, /* neverCorrupt */ 128, /* szLookaside */ 500, /* nLookaside */ SQLITE_STMTJRNL_SPILL, /* nStmtSpill */ {0,0,0,0,0,0,0,0}, /* m */ {0,0,0,0,0,0,0,0,0}, /* mutex */ {0,0,0,0,0,0,0,0,0,0,0,0,0},/* pcache2 */ (void*)0, /* pHeap */ 0, /* nHeap */ 0, 0, /* mnHeap, mxHeap */ SQLITE_DEFAULT_MMAP_SIZE, /* szMmap */ |
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Changes to src/main.c.
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628 629 630 631 632 633 634 635 636 637 638 639 640 641 | } #endif case SQLITE_CONFIG_PMASZ: { sqlite3GlobalConfig.szPma = va_arg(ap, unsigned int); break; } default: { rc = SQLITE_ERROR; break; } } va_end(ap); | > > > > > | 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 | } #endif case SQLITE_CONFIG_PMASZ: { sqlite3GlobalConfig.szPma = va_arg(ap, unsigned int); break; } case SQLITE_CONFIG_STMTJRNL_SPILL: { sqlite3GlobalConfig.nStmtSpill = va_arg(ap, int); break; } default: { rc = SQLITE_ERROR; break; } } va_end(ap); |
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Changes to src/pager.c.
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4354 4355 4356 4357 4358 4359 4360 | */ static int openSubJournal(Pager *pPager){ int rc = SQLITE_OK; if( !isOpen(pPager->sjfd) ){ const int flags = SQLITE_OPEN_SUBJOURNAL | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE | SQLITE_OPEN_DELETEONCLOSE; | | | | | 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 | */ static int openSubJournal(Pager *pPager){ int rc = SQLITE_OK; if( !isOpen(pPager->sjfd) ){ const int flags = SQLITE_OPEN_SUBJOURNAL | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE | SQLITE_OPEN_DELETEONCLOSE; int nStmtSpill = sqlite3Config.nStmtSpill; if( pPager->journalMode==PAGER_JOURNALMODE_MEMORY || pPager->subjInMemory ){ nStmtSpill = -1; } rc = sqlite3JournalOpen(pPager->pVfs, 0, pPager->sjfd, flags, nStmtSpill); } return rc; } /* ** Append a record of the current state of page pPg to the sub-journal. ** |
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Changes to src/sqlite.h.in.
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1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 | ** is an unsigned integer and sets the "Minimum PMA Size" for the multithreaded ** sorter to that integer. The default minimum PMA Size is set by the ** [SQLITE_SORTER_PMASZ] compile-time option. New threads are launched ** to help with sort operations when multithreaded sorting ** is enabled (using the [PRAGMA threads] command) and the amount of content ** to be sorted exceeds the page size times the minimum of the ** [PRAGMA cache_size] setting and this value. ** </dl> */ #define SQLITE_CONFIG_SINGLETHREAD 1 /* nil */ #define SQLITE_CONFIG_MULTITHREAD 2 /* nil */ #define SQLITE_CONFIG_SERIALIZED 3 /* nil */ #define SQLITE_CONFIG_MALLOC 4 /* sqlite3_mem_methods* */ #define SQLITE_CONFIG_GETMALLOC 5 /* sqlite3_mem_methods* */ | > > > > > > > > > > > > > > | 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 | ** is an unsigned integer and sets the "Minimum PMA Size" for the multithreaded ** sorter to that integer. The default minimum PMA Size is set by the ** [SQLITE_SORTER_PMASZ] compile-time option. New threads are launched ** to help with sort operations when multithreaded sorting ** is enabled (using the [PRAGMA threads] command) and the amount of content ** to be sorted exceeds the page size times the minimum of the ** [PRAGMA cache_size] setting and this value. ** ** [[SQLITE_CONFIG_STMTJRNL_SPILL]] ** <dt>SQLITE_CONFIG_STMTJRNL_SPILL ** <dd>^The SQLITE_CONFIG_STMTJRNL_SPILL option takes a single parameter which ** becomes the [statement journal] spill-to-disk threshold. ** [Statement journals] are held in memory until their size (in bytes) ** exceeds this threshold, at which point they are written to disk. ** Or if the threshold is -1, statement journals are always held ** exclusively in memory. ** Since many statement journals never become large, setting the spill ** threshold to a value such as 64KiB can greatly reduce the amount of ** I/O required to support statement rollback. ** The default value for this setting is controlled by the ** [SQLITE_STMTJRNL_SPILL] compile-time option. ** </dl> */ #define SQLITE_CONFIG_SINGLETHREAD 1 /* nil */ #define SQLITE_CONFIG_MULTITHREAD 2 /* nil */ #define SQLITE_CONFIG_SERIALIZED 3 /* nil */ #define SQLITE_CONFIG_MALLOC 4 /* sqlite3_mem_methods* */ #define SQLITE_CONFIG_GETMALLOC 5 /* sqlite3_mem_methods* */ |
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1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 | #define SQLITE_CONFIG_GETPCACHE2 19 /* sqlite3_pcache_methods2* */ #define SQLITE_CONFIG_COVERING_INDEX_SCAN 20 /* int */ #define SQLITE_CONFIG_SQLLOG 21 /* xSqllog, void* */ #define SQLITE_CONFIG_MMAP_SIZE 22 /* sqlite3_int64, sqlite3_int64 */ #define SQLITE_CONFIG_WIN32_HEAPSIZE 23 /* int nByte */ #define SQLITE_CONFIG_PCACHE_HDRSZ 24 /* int *psz */ #define SQLITE_CONFIG_PMASZ 25 /* unsigned int szPma */ /* ** CAPI3REF: Database Connection Configuration Options ** ** These constants are the available integer configuration options that ** can be passed as the second argument to the [sqlite3_db_config()] interface. ** | > | 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 | #define SQLITE_CONFIG_GETPCACHE2 19 /* sqlite3_pcache_methods2* */ #define SQLITE_CONFIG_COVERING_INDEX_SCAN 20 /* int */ #define SQLITE_CONFIG_SQLLOG 21 /* xSqllog, void* */ #define SQLITE_CONFIG_MMAP_SIZE 22 /* sqlite3_int64, sqlite3_int64 */ #define SQLITE_CONFIG_WIN32_HEAPSIZE 23 /* int nByte */ #define SQLITE_CONFIG_PCACHE_HDRSZ 24 /* int *psz */ #define SQLITE_CONFIG_PMASZ 25 /* unsigned int szPma */ #define SQLITE_CONFIG_STMTJRNL_SPILL 26 /* int nByte */ /* ** CAPI3REF: Database Connection Configuration Options ** ** These constants are the available integer configuration options that ** can be passed as the second argument to the [sqlite3_db_config()] interface. ** |
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Changes to src/sqliteInt.h.
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3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 | int bFullMutex; /* True to enable full mutexing */ int bOpenUri; /* True to interpret filenames as URIs */ int bUseCis; /* Use covering indices for full-scans */ int mxStrlen; /* Maximum string length */ int neverCorrupt; /* Database is always well-formed */ int szLookaside; /* Default lookaside buffer size */ int nLookaside; /* Default lookaside buffer count */ sqlite3_mem_methods m; /* Low-level memory allocation interface */ sqlite3_mutex_methods mutex; /* Low-level mutex interface */ sqlite3_pcache_methods2 pcache2; /* Low-level page-cache interface */ void *pHeap; /* Heap storage space */ int nHeap; /* Size of pHeap[] */ int mnReq, mxReq; /* Min and max heap requests sizes */ sqlite3_int64 szMmap; /* mmap() space per open file */ | > | 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 | int bFullMutex; /* True to enable full mutexing */ int bOpenUri; /* True to interpret filenames as URIs */ int bUseCis; /* Use covering indices for full-scans */ int mxStrlen; /* Maximum string length */ int neverCorrupt; /* Database is always well-formed */ int szLookaside; /* Default lookaside buffer size */ int nLookaside; /* Default lookaside buffer count */ int nStmtSpill; /* Stmt-journal spill-to-disk threshold */ sqlite3_mem_methods m; /* Low-level memory allocation interface */ sqlite3_mutex_methods mutex; /* Low-level mutex interface */ sqlite3_pcache_methods2 pcache2; /* Low-level page-cache interface */ void *pHeap; /* Heap storage space */ int nHeap; /* Size of pHeap[] */ int mnReq, mxReq; /* Min and max heap requests sizes */ sqlite3_int64 szMmap; /* mmap() space per open file */ |
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