Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Extend the SQLITE_TESTCTRL_OPTIMIZATIONS option to disable DISTINCT optimizations. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
18501dd1a8aa8299c091c36e35b9a10a |
| User & Date: | drh 2011-07-08 13:07:02 |
Context
|
2011-07-08
| ||
| 16:10 | Fix for [54844eea3f]: Do not create automatic indexes on correlated sub-queries. check-in: 9f14fa56 user: dan tags: trunk | |
| 13:07 | Extend the SQLITE_TESTCTRL_OPTIMIZATIONS option to disable DISTINCT optimizations. check-in: 18501dd1 user: drh tags: trunk | |
|
2011-07-07
| ||
| 08:52 | Update the tool/symbols.sh script to check for accidentally exported global variables. check-in: 71b749a9 user: drh tags: trunk | |
Changes
Changes to src/sqliteInt.h.
952 953 954 955 956 957 958 959 960 961 962 963 964 965 |
#define SQLITE_ColumnCache 0x02 /* Disable the column cache */ #define SQLITE_IndexSort 0x04 /* Disable indexes for sorting */ #define SQLITE_IndexSearch 0x08 /* Disable indexes for searching */ #define SQLITE_IndexCover 0x10 /* Disable index covering table */ #define SQLITE_GroupByOrder 0x20 /* Disable GROUPBY cover of ORDERBY */ #define SQLITE_FactorOutConst 0x40 /* Disable factoring out constants */ #define SQLITE_IdxRealAsInt 0x80 /* Store REAL as INT in indices */ #define SQLITE_OptMask 0xff /* Mask of all disablable opts */ /* ** Possible values for the sqlite.magic field. ** The numbers are obtained at random and have no special meaning, other ** than being distinct from one another. */ |
> |
952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 |
#define SQLITE_ColumnCache 0x02 /* Disable the column cache */
#define SQLITE_IndexSort 0x04 /* Disable indexes for sorting */
#define SQLITE_IndexSearch 0x08 /* Disable indexes for searching */
#define SQLITE_IndexCover 0x10 /* Disable index covering table */
#define SQLITE_GroupByOrder 0x20 /* Disable GROUPBY cover of ORDERBY */
#define SQLITE_FactorOutConst 0x40 /* Disable factoring out constants */
#define SQLITE_IdxRealAsInt 0x80 /* Store REAL as INT in indices */
#define SQLITE_DistinctOpt 0x80 /* DISTINCT using indexes */
#define SQLITE_OptMask 0xff /* Mask of all disablable opts */
/*
** Possible values for the sqlite.magic field.
** The numbers are obtained at random and have no special meaning, other
** than being distinct from one another.
*/
|
Changes to src/where.c.
4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 |
pWInfo->pParse = pParse; pWInfo->pTabList = pTabList; pWInfo->iBreak = sqlite3VdbeMakeLabel(v); pWInfo->pWC = pWC = (WhereClause *)&((u8 *)pWInfo)[nByteWInfo]; pWInfo->wctrlFlags = wctrlFlags; pWInfo->savedNQueryLoop = pParse->nQueryLoop; pMaskSet = (WhereMaskSet*)&pWC[1]; /* Split the WHERE clause into separate subexpressions where each ** subexpression is separated by an AND operator. */ initMaskSet(pMaskSet); whereClauseInit(pWC, pParse, pMaskSet); sqlite3ExprCodeConstants(pParse, pWhere); |
> > > > |
4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 |
pWInfo->pParse = pParse; pWInfo->pTabList = pTabList; pWInfo->iBreak = sqlite3VdbeMakeLabel(v); pWInfo->pWC = pWC = (WhereClause *)&((u8 *)pWInfo)[nByteWInfo]; pWInfo->wctrlFlags = wctrlFlags; pWInfo->savedNQueryLoop = pParse->nQueryLoop; pMaskSet = (WhereMaskSet*)&pWC[1]; /* Disable the DISTINCT optimization if SQLITE_DistinctOpt is set via ** sqlite3_test_ctrl(SQLITE_TESTCTRL_OPTIMIZATIONS,...) */ if( db->flags & SQLITE_DistinctOpt ) pDistinct = 0; /* Split the WHERE clause into separate subexpressions where each ** subexpression is separated by an AND operator. */ initMaskSet(pMaskSet); whereClauseInit(pWC, pParse, pMaskSet); sqlite3ExprCodeConstants(pParse, pWhere); |