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Split out sqlite3BtreeCursorHintFlags() from sqlite3BtreeCursorHint()

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the interface for improved performance.

FossilOrigin-Name: b3ec9a0d62c5543e91d4be2cd634ec4a3d6dca11
This commit is contained in:
drh
2015-10-27 13:24:37 +00:00
parent c5dc3dcd6e
commit f7854c7329
7 changed files with 41 additions and 35 deletions
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12
src/btree.h
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@@ -153,12 +153,6 @@ int sqlite3BtreeNewDb(Btree *p);
** Kinds of hints that can be passed into the sqlite3BtreeCursorHint()
** interface.
**
** BTREE_HINT_FLAGS (arguments: unsigned int)
**
** Some combinatation of BTREE_BULKLOAD and BTREE_SEEK_EQ flags. The
** argument is a single unsigned integer which overwrites all prior
** flag settings.
**
** BTREE_HINT_RANGE (arguments: Expr*, Mem*)
**
** The first argument is an Expr* (which is guaranteed to be constant for
@@ -182,8 +176,7 @@ int sqlite3BtreeNewDb(Btree *p);
** the SQLite parser and code generator but substitute their own storage
** engine.
*/
#define BTREE_HINT_FLAGS 1 /* Set flags indicating cursor usage */
#define BTREE_HINT_RANGE 2 /* Range constraints on queries */
#define BTREE_HINT_RANGE 0 /* Range constraints on queries */
/*
** Values that may be OR'd together to form the argument to the
@@ -226,7 +219,10 @@ int sqlite3BtreeCursor(
);
int sqlite3BtreeCursorSize(void);
void sqlite3BtreeCursorZero(BtCursor*);
void sqlite3BtreeCursorHintFlags(BtCursor*, unsigned);
#ifdef SQLITE_ENABLE_CURSOR_HINTS
void sqlite3BtreeCursorHint(BtCursor*, int, ...);
#endif
int sqlite3BtreeCloseCursor(BtCursor*);
int sqlite3BtreeMovetoUnpacked(