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Changes In Branch win32-none Excluding Merge-Ins
This is equivalent to a diff from 9bbca48b to e193aced
2014-05-07
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15:46 | Add the SQLITE_IOCAP_IMMUTABLE bit as a possible return value from the xDeviceCharacteristics method in the VFS. Add the "nolock" and "immutable" query parameters to URI filenames. (check-in: 1a0d7d3d user: drh tags: trunk) | |
15:32 | Fix nolock and immutable so that they work even if READONLY is requested. (Closed-Leaf check-in: e193aced user: drh tags: win32-none) | |
15:09 | Add test cases and documentation for the nolock and immutable query parameters. (check-in: 19d56cba user: drh tags: win32-none) | |
2014-05-01
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10:19 | Update a test case in wal2.test that explicitly corrupts a checksum in the wal file to account for the fact that the first byte of said checksum may initially be 0xFF. (check-in: 2b935bde user: dan tags: trunk) | |
2014-04-30
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20:32 | Merge in all recent changes and enhancements from trunk. (check-in: 84243f84 user: drh tags: win32-none) | |
18:11 | Fix a problem in calculating the costs of "OR" scans. (check-in: 9bbca48b user: dan tags: trunk) | |
15:22 | Modify the way the costs of various query plans are estimated. If the user supplies a likelihood() value (or equivalent) on an indexed WHERE constraint, use it to estimate the number of index rows visited. (check-in: 90e36676 user: dan tags: trunk) | |
Changes to src/pager.c.
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622 623 624 625 626 627 628 | 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 | - + + | u8 journalMode; /* One of the PAGER_JOURNALMODE_* values */ u8 useJournal; /* Use a rollback journal on this file */ u8 noSync; /* Do not sync the journal if true */ u8 fullSync; /* Do extra syncs of the journal for robustness */ u8 ckptSyncFlags; /* SYNC_NORMAL or SYNC_FULL for checkpoint */ u8 walSyncFlags; /* SYNC_NORMAL or SYNC_FULL for wal writes */ u8 syncFlags; /* SYNC_NORMAL or SYNC_FULL otherwise */ |
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1087 1088 1089 1090 1091 1092 1093 | 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 | - + | int rc = SQLITE_OK; assert( !pPager->exclusiveMode || pPager->eLock==eLock ); assert( eLock==NO_LOCK || eLock==SHARED_LOCK ); assert( eLock!=NO_LOCK || pagerUseWal(pPager)==0 ); if( isOpen(pPager->fd) ){ assert( pPager->eLock>=eLock ); |
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1111 1112 1113 1114 1115 1116 1117 | 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 | - + | ** of this. */ static int pagerLockDb(Pager *pPager, int eLock){ int rc = SQLITE_OK; assert( eLock==SHARED_LOCK || eLock==RESERVED_LOCK || eLock==EXCLUSIVE_LOCK ); if( pPager->eLock<eLock || pPager->eLock==UNKNOWN_LOCK ){ |
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4670 4671 4672 4673 4674 4675 4676 | 4671 4672 4673 4674 4675 4676 4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706 4707 4708 4709 4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727 4728 4729 4730 4731 4732 4733 | - - - - - - - - - - + + + + + + + + + + + + - + - - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + - - + + + | ** choose a default page size in case we have to create the ** database file. The default page size is the maximum of: ** ** + SQLITE_DEFAULT_PAGE_SIZE, ** + The value returned by sqlite3OsSectorSize() ** + The largest page size that can be written atomically. */ |
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4747 4748 4749 4750 4751 4752 4753 | 4760 4761 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773 | - - - | /* pPager->stmtInUse = 0; */ /* pPager->nRef = 0; */ /* pPager->stmtSize = 0; */ /* pPager->stmtJSize = 0; */ /* pPager->nPage = 0; */ pPager->mxPgno = SQLITE_MAX_PAGE_COUNT; /* pPager->state = PAGER_UNLOCK; */ |
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Changes to src/sqlite.h.in.
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551 552 553 554 555 556 557 | 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 | - + + + + + | ** way around. The SQLITE_IOCAP_SEQUENTIAL property means that ** information is written to disk in the same order as calls ** to xWrite(). The SQLITE_IOCAP_POWERSAFE_OVERWRITE property means that ** after reboot following a crash or power loss, the only bytes in a ** file that were written at the application level might have changed ** and that adjacent bytes, even bytes within the same sector are ** guaranteed to be unchanged. The SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN |
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2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 | 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 | + + + + + + + + + + + + + + + + + + + + + + + + | ** "private". ^Setting it to "shared" is equivalent to setting the ** SQLITE_OPEN_SHAREDCACHE bit in the flags argument passed to ** sqlite3_open_v2(). ^Setting the cache parameter to "private" is ** equivalent to setting the SQLITE_OPEN_PRIVATECACHE bit. ** ^If sqlite3_open_v2() is used and the "cache" parameter is present in ** a URI filename, its value overrides any behavior requested by setting ** SQLITE_OPEN_PRIVATECACHE or SQLITE_OPEN_SHAREDCACHE flag. ** ** <li> <b>psow</b>: ^The psow parameter may be "true" (or "on" or "yes" or ** "1") or "false" (or "off" or "no" or "0") to indicate that the ** [powersafe overwrite] property does or does not apply to the ** storage media on which the database file resides. ^The psow query ** parameter only works for the built-in unix and Windows VFSes. ** ** <li> <b>nolock</b>: ^The nolock parameter is a boolean query parameter ** which if set disables file locking in rollback journal modes. This ** is useful for accessing a database on a filesystem that does not ** support locking. Caution: Database corruption might result if two ** or more processes write to the same database and any one of those ** processes uses nolock=1. ** ** <li> <b>immutable</b>: ^The immutable parameter is a boolean query ** parameter that indicates that the database file is stored on ** read-only media. ^When immutable is set, SQLite assumes that the ** database file cannot be changed, even by a process with higher ** privilege, and so the database is opened read-only and all locking ** and change detection is disabled. Caution: Setting the immutable ** property on a database file that does in fact change can result ** in incorrect query results and/or [SQLITE_CORRUPT] errors. ** See also: [SQLITE_IOCAP_IMMUTABLE]. ** ** </ul> ** ** ^Specifying an unknown parameter in the query component of a URI is not an ** error. Future versions of SQLite might understand additional query ** parameters. See "[query parameters with special meaning to SQLite]" for ** additional information. ** |
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2799 2800 2801 2802 2803 2804 2805 | 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 | - - + + + | ** C:. Note that the %20 escaping in this example is not strictly ** necessary - space characters can be used literally ** in URI filenames. ** <tr><td> file:data.db?mode=ro&cache=private <td> ** Open file "data.db" in the current directory for read-only access. ** Regardless of whether or not shared-cache mode is enabled by ** default, use a private cache. |
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Changes to src/test_vfs.c.
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123 124 125 126 127 128 129 130 | 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | + + - + | #define TESTVFS_CLOSE_MASK 0x00000800 #define TESTVFS_WRITE_MASK 0x00001000 #define TESTVFS_TRUNCATE_MASK 0x00002000 #define TESTVFS_ACCESS_MASK 0x00004000 #define TESTVFS_FULLPATHNAME_MASK 0x00008000 #define TESTVFS_READ_MASK 0x00010000 #define TESTVFS_UNLOCK_MASK 0x00020000 #define TESTVFS_LOCK_MASK 0x00040000 #define TESTVFS_CKLOCK_MASK 0x00080000 |
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462 463 464 465 466 467 468 | 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 | - - + + + + + + + + + + + + + + + - - + + + + + + + | return sqlite3OsFileSize(p->pReal, pSize); } /* ** Lock an tvfs-file. */ static int tvfsLock(sqlite3_file *pFile, int eLock){ |
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1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 | 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 | + + + + - - - - - - - - - - - - - - - + + + + + + + + + + + + + + + + + | if( pgsz==0 ) pgsz = 65536; Tcl_AppendObjToObj(pObj, Tcl_NewByteArrayObj(pBuffer->aPage[i], pgsz)); } Tcl_SetObjResult(interp, pObj); break; } /* TESTVFS filter METHOD-LIST ** ** Activate special processing for those methods contained in the list */ case CMD_FILTER: { static struct VfsMethod { char *zName; int mask; } vfsmethod [] = { |
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1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 | 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 | + + + + + + | return TCL_ERROR; } } p->mask = mask; break; } /* ** TESTVFS script ?SCRIPT? ** ** Query or set the script to be run when filtered VFS events ** occur. */ case CMD_SCRIPT: { if( objc==3 ){ int nByte; if( p->pScript ){ Tcl_DecrRefCount(p->pScript); p->pScript = 0; } |
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1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 | 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 | + | { "atomic16k", SQLITE_IOCAP_ATOMIC16K }, { "atomic32k", SQLITE_IOCAP_ATOMIC32K }, { "atomic64k", SQLITE_IOCAP_ATOMIC64K }, { "sequential", SQLITE_IOCAP_SEQUENTIAL }, { "safe_append", SQLITE_IOCAP_SAFE_APPEND }, { "undeletable_when_open", SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN }, { "powersafe_overwrite", SQLITE_IOCAP_POWERSAFE_OVERWRITE }, { "immutable", SQLITE_IOCAP_IMMUTABLE }, { 0, 0 } }; Tcl_Obj *pRet; int iFlag; if( objc>3 ){ Tcl_WrongNumArgs(interp, 2, objv, "?ATTR-LIST?"); |
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Added test/nolock.test.