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Avoid a test for CURTYPE_BTREE in sqlite3VdbeCursorMoveto() in order to reduce

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the size and improve the performance of OP_Column.

FossilOrigin-Name: f078deb25149b7b1881b7f3374b343d0677e82336d8fdd7f1cdd06d926b5dd57
This commit is contained in:
drh
2017-08-16 19:20:20 +00:00
parent 1f613c4df3
commit fe0cf7a18c
8 changed files with 56 additions and 38 deletions
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10
src/btreeInt.h
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@@ -499,6 +499,11 @@ struct CellInfo {
** eState==FAULT: Cursor fault with skipNext as error code.
*/
struct BtCursor {
u8 eState; /* One of the CURSOR_XXX constants (see below) */
u8 curFlags; /* zero or more BTCF_* flags defined below */
u8 curPagerFlags; /* Flags to send to sqlite3PagerGet() */
u8 hints; /* As configured by CursorSetHints() */
int nOvflAlloc; /* Allocated size of aOverflow[] array */
Btree *pBtree; /* The Btree to which this cursor belongs */
BtShared *pBt; /* The BtShared this cursor points to */
BtCursor *pNext; /* Forms a linked list of all cursors */
@@ -507,13 +512,8 @@ struct BtCursor {
i64 nKey; /* Size of pKey, or last integer key */
void *pKey; /* Saved key that was cursor last known position */
Pgno pgnoRoot; /* The root page of this tree */
int nOvflAlloc; /* Allocated size of aOverflow[] array */
int skipNext; /* Prev() is noop if negative. Next() is noop if positive.
** Error code if eState==CURSOR_FAULT */
u8 curFlags; /* zero or more BTCF_* flags defined below */
u8 curPagerFlags; /* Flags to send to sqlite3PagerGet() */
u8 eState; /* One of the CURSOR_XXX constants (see below) */
u8 hints; /* As configured by CursorSetHints() */
/* All fields above are zeroed when the cursor is allocated. See
** sqlite3BtreeCursorZero(). Fields that follow must be manually
** initialized. */