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Add the SQLITE_FCNTL_RESET_CACHE verb. Use it to ensure that the page cache is purged before and after a the recovery extension is run.

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FossilOrigin-Name: 6db0bc4bc0d272b610bef2aeeae43f539ed6e7cc0a9cc767d5af85ecb0019d5f
This commit is contained in:
dan
2022-11-28 18:41:41 +00:00
parent e862b5fe1d
commit 1b3d13e65e
8 changed files with 82 additions and 14 deletions
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11
src/btree.c
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@@ -11083,6 +11083,17 @@ int sqlite3BtreeIsReadonly(Btree *p){
*/
int sqlite3HeaderSizeBtree(void){ return ROUND8(sizeof(MemPage)); }
/*
** If no transaction is active and the database is not a temp-db, clear
** the in-memory pager cache.
*/
void sqlite3BtreeClearCache(Btree *p){
BtShared *pBt = p->pBt;
if( pBt->inTransaction==TRANS_NONE ){
sqlite3PagerClearCache(pBt->pPager);
}
}
#if !defined(SQLITE_OMIT_SHARED_CACHE)
/*
** Return true if the Btree passed as the only argument is sharable.