Remove unnecessary MemPage initialization resets in the autovacuum ptrmap

processing.

FossilOrigin-Name: 1b36fbb9f05f3a5844e198b489bff36ef6cd908c

diff --git a/manifest b/manifest
index a14a5ca3c0e04a3e1648e8a2c21e8d04ba362a50..bbdb5fc0a117df11cd8789c12d803595cfaee739 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Faster\soperation\sfor\slarge\sin-memory\sdatabases.
-D 2016-12-12T16:08:44.373
+C Remove\sunnecessary\sMemPage\sinitialization\sresets\sin\sthe\sautovacuum\sptrmap\nprocessing.
+D 2016-12-12T18:12:03.591
 F Makefile.in 7639c6a09da11a9c7c6f2630fc981ee588d1072d
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da
@@ -331,7 +331,7 @@ F src/auth.c 930b376a9c56998557367e6f7f8aaeac82a2a792
 F src/backup.c faf17e60b43233c214aae6a8179d24503a61e83b
 F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
 F src/btmutex.c bc87dd3b062cc26edfe79918de2200ccb8d41e73
-F src/btree.c 383ce69bd36b0f409bfb8bd028786b2f0a4cbb24
+F src/btree.c 0d377e5769657d3ac2a1b6ba081ba77a128610d5
 F src/btree.h 2349a588abcd7e0c04f984e15c5c777b61637583
 F src/btreeInt.h 10c4b77c2fb399580babbcc7cf652ac10dba796e
 F src/build.c 178f16698cbcb43402c343a9413fe22c99ffee21
@@ -1536,8 +1536,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P d4dff10a3d4edf8e1cc77c0a4f185d33f2c2e953 4fe94b0f1841180dfd8cac33838e335dc6a428bf
-R ea4e252aab274ae80300d82ccbdd9ba6
-T +closed 4fe94b0f1841180dfd8cac33838e335dc6a428bf
+P 9675518b33e8d40769daefb860dc748113f750b6
+R 5c1b605906a01e86141edb10d66002b4
 U drh
-Z 222df42015043d416e25238322e825fe
+Z 43d64d3ee0d93b0119909f8d75d1fdb9

diff --git a/manifest.uuid b/manifest.uuid
index ce37cd3aa69929b5ec16cd5037ab4c1392ea0aaf..c16cee434f02eb25496bc3081e000b725482df06 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-9675518b33e8d40769daefb860dc748113f750b6
\ No newline at end of file
+1b36fbb9f05f3a5844e198b489bff36ef6cd908c
\ No newline at end of file

diff --git a/src/btree.c b/src/btree.c
index a6a8a4782aeec0fb28f77456f7113cd4eefe4469..e91fad3b122c4aa0c12ae3316f092870333ff242 100644 (file)
--- a/src/btree.c
+++ b/src/btree.c
@@ -3296,14 +3296,11 @@ static int setChildPtrmaps(MemPage *pPage){
   int nCell;                         /* Number of cells in page pPage */
   int rc;                            /* Return code */
   BtShared *pBt = pPage->pBt;
-  u8 isInitOrig = pPage->isInit;
   Pgno pgno = pPage->pgno;
 
   assert( sqlite3_mutex_held(pPage->pBt->mutex) );
   rc = btreeInitPage(pPage);
-  if( rc!=SQLITE_OK ){
-    goto set_child_ptrmaps_out;
-  }
+  if( rc!=SQLITE_OK ) return rc;
   nCell = pPage->nCell;
 
   for(i=0; i<nCell; i++){
@@ -3322,8 +3319,6 @@ static int setChildPtrmaps(MemPage *pPage){
     ptrmapPut(pBt, childPgno, PTRMAP_BTREE, pgno, &rc);
   }
 
-set_child_ptrmaps_out:
-  pPage->isInit = isInitOrig;
   return rc;
 }
 
@@ -3351,7 +3346,6 @@ static int modifyPagePointer(MemPage *pPage, Pgno iFrom, Pgno iTo, u8 eType){
     }
     put4byte(pPage->aData, iTo);
   }else{
-    u8 isInitOrig = pPage->isInit;
     int i;
     int nCell;
     int rc;
@@ -3387,8 +3381,6 @@ static int modifyPagePointer(MemPage *pPage, Pgno iFrom, Pgno iTo, u8 eType){
       }
       put4byte(&pPage->aData[pPage->hdrOffset+8], iTo);
     }
-
-    pPage->isInit = isInitOrig;
   }
   return SQLITE_OK;
 }