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Add a new hint bit on the flags parameter of sqlite3BtreeDelete(). The new

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BTREE_IDXDELETE bit indicates that the call is to delete an index entry 
corresponding to a table row that has already been deleted.

FossilOrigin-Name: ac2cbadd8000947c097da5b00c00090fe58fdcff
This commit is contained in:
drh
2016-01-21 17:06:33 +00:00
parent 9c0c57a4ca
commit e807bdba86
7 changed files with 73 additions and 33 deletions
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7
src/btree.h
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@@ -245,7 +245,12 @@ int sqlite3BtreeMovetoUnpacked(
);
int sqlite3BtreeCursorHasMoved(BtCursor*);
int sqlite3BtreeCursorRestore(BtCursor*, int*);
int sqlite3BtreeDelete(BtCursor*, int);
int sqlite3BtreeDelete(BtCursor*, u8 flags);
/* Allowed flags for the 2nd argument to sqlite3BtreeDelete() */
#define BTREE_SAVEPOSITION 0x02 /* Leave cursor pointing at NEXT or PREV */
#define BTREE_IDXDELETE 0x04 /* this is index, table row already deleted */
int sqlite3BtreeInsert(BtCursor*, const void *pKey, i64 nKey,
const void *pData, int nData,
int nZero, int bias, int seekResult);