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Merge the latest enhancements and fixes from trunk.

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FossilOrigin-Name: 543ecb30d67bdf7639ea5d57d091e8c0981d4b5042bb6f9cedd1264bbcbef0de
This commit is contained in:
drh
2019-03-08 16:06:26 +00:00
parent d65b8528a5 d9df7cb876
commit b0120de573
187 changed files with 17268 additions and 1672 deletions
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15
src/btreeInt.h
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@@ -290,7 +290,7 @@ struct MemPage {
u16 maxLocal; /* Copy of BtShared.maxLocal or BtShared.maxLeaf */
u16 minLocal; /* Copy of BtShared.minLocal or BtShared.minLeaf */
u16 cellOffset; /* Index in aData of first cell pointer */
u16 nFree; /* Number of free bytes on the page */
int nFree; /* Number of free bytes on the page. -1 for unknown */
u16 nCell; /* Number of cells on this page, local and ovfl */
u16 maskPage; /* Mask for page offset */
u16 aiOvfl[4]; /* Insert the i-th overflow cell before the aiOvfl-th
@@ -501,9 +501,16 @@ struct CellInfo {
** found at self->pBt->mutex.
**
** skipNext meaning:
** eState==SKIPNEXT && skipNext>0: Next sqlite3BtreeNext() is no-op.
** eState==SKIPNEXT && skipNext<0: Next sqlite3BtreePrevious() is no-op.
** eState==FAULT: Cursor fault with skipNext as error code.
** The meaning of skipNext depends on the value of eState:
**
** eState Meaning of skipNext
** VALID skipNext is meaningless and is ignored
** INVALID skipNext is meaningless and is ignored
** SKIPNEXT sqlite3BtreeNext() is a no-op if skipNext>0 and
** sqlite3BtreePrevious() is no-op if skipNext<0.
** REQUIRESEEK restoreCursorPosition() restores the cursor to
** eState=SKIPNEXT if skipNext!=0
** FAULT skipNext holds the cursor fault error code.
*/
struct BtCursor {
u8 eState; /* One of the CURSOR_XXX constants (see below) */