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Changes In Branch pragma-noop-update Excluding Merge-Ins
This is equivalent to a diff from 9780b23ca3 to de2e371757
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2017-09-12
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| 23:58 | Remove use of the rand_s() function (added by [139081bef9f63c3e]) as it appears to cause issues with some third-party DLLs. (check-in: 3a2793aa65 user: mistachkin tags: trunk) | |
| 20:09 | Add the highly-experimental "PRAGMA noop_update=TRUE" command. (check-in: afe45271b9 user: drh tags: begin-concurrent-pnu) | |
| 18:49 | Add the highly-experimental "PRAGMA noop_update=TRUE" command. (Leaf check-in: de2e371757 user: drh tags: pragma-noop-update) | |
| 18:03 | Hack to have multiple connections to a single file share a single memory mapping of the databse file. (check-in: ec37ad6d08 user: dan tags: shared-mapping-hack) | |
| 15:05 | Fix an error in [b22cdd67] that can cause a negative infinity to be (rarely) reported as a positive infinity. (check-in: 9780b23ca3 user: drh tags: trunk) | |
| 13:27 | Changes to (hopefully) get the build working with recent Intel compilers. (check-in: b22cdd6734 user: drh tags: trunk) | |
Changes to src/pragma.h.
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436 437 438 439 440 441 442 443 444 445 446 447 448 449 | 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 | + + + + + + + + + |
{/* zName: */ "module_list",
/* ePragTyp: */ PragTyp_MODULE_LIST,
/* ePragFlg: */ PragFlg_Result0,
/* ColNames: */ 31, 1,
/* iArg: */ 0 },
#endif
#endif
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if defined(SQLITE_DEBUG)
{/* zName: */ "noop_update",
/* ePragTyp: */ PragTyp_FLAG,
/* ePragFlg: */ PragFlg_Result0|PragFlg_NoColumns1,
/* ColNames: */ 0, 0,
/* iArg: */ SQLITE_NoopUpdate },
#endif
#endif
{/* zName: */ "optimize",
/* ePragTyp: */ PragTyp_OPTIMIZE,
/* ePragFlg: */ PragFlg_Result1|PragFlg_NeedSchema,
/* ColNames: */ 0, 0,
/* iArg: */ 0 },
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
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642 643 644 645 646 647 648 | 651 652 653 654 655 656 657 658 | - + |
{/* zName: */ "writable_schema",
/* ePragTyp: */ PragTyp_FLAG,
/* ePragFlg: */ PragFlg_Result0|PragFlg_NoColumns1,
/* ColNames: */ 0, 0,
/* iArg: */ SQLITE_WriteSchema },
#endif
};
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Changes to src/sqliteInt.h.
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1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 | 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 | + | #define SQLITE_DeferFKs 0x00080000 /* Defer all FK constraints */ #define SQLITE_QueryOnly 0x00100000 /* Disable database changes */ #define SQLITE_CellSizeCk 0x00200000 /* Check btree cell sizes on load */ #define SQLITE_Fts3Tokenizer 0x00400000 /* Enable fts3_tokenizer(2) */ #define SQLITE_EnableQPSG 0x00800000 /* Query Planner Stability Guarantee */ /* Flags used only if debugging */ #ifdef SQLITE_DEBUG #define SQLITE_NoopUpdate 0x04000000 /* UPDATE operations are no-ops */ #define SQLITE_SqlTrace 0x08000000 /* Debug print SQL as it executes */ #define SQLITE_VdbeListing 0x10000000 /* Debug listings of VDBE programs */ #define SQLITE_VdbeTrace 0x20000000 /* True to trace VDBE execution */ #define SQLITE_VdbeAddopTrace 0x40000000 /* Trace sqlite3VdbeAddOp() calls */ #define SQLITE_VdbeEQP 0x80000000 /* Debug EXPLAIN QUERY PLAN */ #endif |
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Changes to src/update.c.
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219 220 221 222 223 224 225 226 227 228 229 230 231 232 | 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 | + + + + + + + + + + + |
** of the UPDATE statement. Also find the column index
** for each column to be updated in the pChanges array. For each
** column to be updated, make sure we have authorization to change
** that column.
*/
chngRowid = chngPk = 0;
for(i=0; i<pChanges->nExpr; i++){
#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_FLAG_PRAGMAS)
if( db->flags & SQLITE_NoopUpdate ){
Token x;
sqlite3ExprDelete(db, pChanges->a[i].pExpr);
x.z = pChanges->a[i].zName;
x.n = sqlite3Strlen30(x.z);
pChanges->a[i].pExpr =
sqlite3PExpr(pParse, TK_UPLUS, sqlite3ExprAlloc(db, TK_ID, &x, 0), 0);
if( db->mallocFailed ) goto update_cleanup;
}
#endif
if( sqlite3ResolveExprNames(&sNC, pChanges->a[i].pExpr) ){
goto update_cleanup;
}
for(j=0; j<pTab->nCol; j++){
if( sqlite3StrICmp(pTab->aCol[j].zName, pChanges->a[i].zName)==0 ){
if( j==pTab->iPKey ){
chngRowid = 1;
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Changes to tool/mkpragmatab.tcl.
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105 106 107 108 109 110 111 112 113 114 115 116 117 118 | 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | + + + + + + | ARG: SQLITE_SqlTrace|SQLITE_VdbeListing|SQLITE_VdbeTrace IF: !defined(SQLITE_OMIT_FLAG_PRAGMAS) IF: defined(SQLITE_DEBUG) NAME: vdbe_eqp TYPE: FLAG ARG: SQLITE_VdbeEQP IF: !defined(SQLITE_OMIT_FLAG_PRAGMAS) IF: defined(SQLITE_DEBUG) NAME: noop_update TYPE: FLAG ARG: SQLITE_NoopUpdate IF: !defined(SQLITE_OMIT_FLAG_PRAGMAS) IF: defined(SQLITE_DEBUG) NAME: ignore_check_constraints TYPE: FLAG ARG: SQLITE_IgnoreChecks IF: !defined(SQLITE_OMIT_FLAG_PRAGMAS) |
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