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Remove the "rowid cache" that sought to remember the largest rowid for a

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table and thereby speed up OP_NewRowid.  That cache was ineffective.
Removing it results in a performance increase of 0.4%, less memory usage,
and a slightly smaller library size.

FossilOrigin-Name: 56bc5ce8958c8e6250531b4052b905d7ac993db3
This commit is contained in:
drh
2014-02-12 21:31:12 +00:00
parent 784156f84c
commit e0670b6220
6 changed files with 59 additions and 94 deletions
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src/btree.h
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@@ -182,8 +182,6 @@ const void *sqlite3BtreeKeyFetch(BtCursor*, u32 *pAmt);
const void *sqlite3BtreeDataFetch(BtCursor*, u32 *pAmt);
int sqlite3BtreeDataSize(BtCursor*, u32 *pSize);
int sqlite3BtreeData(BtCursor*, u32 offset, u32 amt, void*);
void sqlite3BtreeSetCachedRowid(BtCursor*, sqlite3_int64);
sqlite3_int64 sqlite3BtreeGetCachedRowid(BtCursor*);
char *sqlite3BtreeIntegrityCheck(Btree*, int *aRoot, int nRoot, int, int*);
struct Pager *sqlite3BtreePager(Btree*);