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Overview
| Comment: | Different comment on the alternative cursor fields of VdbeCursor. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | covering-or |
| Files: | files | file ages | folders |
| SHA1: |
6e3dcb6d7d960bb513d9a4a002b6cf5a |
| User & Date: | drh 2016-01-29 20:58:40 |
Context
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2016-01-29
| ||
| 21:16 | Add tests for the change on this branch. check-in: 7cb697f8 user: dan tags: covering-or | |
| 20:58 | Different comment on the alternative cursor fields of VdbeCursor. check-in: 6e3dcb6d user: drh tags: covering-or | |
| 19:29 | Experimental attempt to make better use of covering indexes within OR queries. check-in: a323ac3a user: dan tags: covering-or | |
Changes
Changes to src/vdbeInt.h.
97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 |
VdbeSorter *pSorter; /* CURTYPE_SORTER. Sorter object */
} uc;
Btree *pBt; /* Separate file holding temporary table */
KeyInfo *pKeyInfo; /* Info about index keys needed by index cursors */
int seekResult; /* Result of previous sqlite3BtreeMoveto() */
i64 seqCount; /* Sequence counter */
i64 movetoTarget; /* Argument to the deferred sqlite3BtreeMoveto() */
VdbeCursor *pAltCursor; /* Set by OP_Seek */
int *aAltMap; /* Set by OP_Seek */
#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
u64 maskUsed; /* Mask of columns used by this cursor */
#endif
/* Cached information about the header for the data record that the
** cursor is currently pointing to. Only valid if cacheStatus matches
** Vdbe.cacheCtr. Vdbe.cacheCtr will never take on the value of
|
| | |
97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 |
VdbeSorter *pSorter; /* CURTYPE_SORTER. Sorter object */
} uc;
Btree *pBt; /* Separate file holding temporary table */
KeyInfo *pKeyInfo; /* Info about index keys needed by index cursors */
int seekResult; /* Result of previous sqlite3BtreeMoveto() */
i64 seqCount; /* Sequence counter */
i64 movetoTarget; /* Argument to the deferred sqlite3BtreeMoveto() */
VdbeCursor *pAltCursor; /* Associated index cursor from which to read */
int *aAltMap; /* Mapping from table to index column numbers */
#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
u64 maskUsed; /* Mask of columns used by this cursor */
#endif
/* Cached information about the header for the data record that the
** cursor is currently pointing to. Only valid if cacheStatus matches
** Vdbe.cacheCtr. Vdbe.cacheCtr will never take on the value of
|