When moving a page to make way for the root page of a new table or index in an auto-vacuum database, save the positions of any cursors that may be holding xFetch references to the page being moved.

FossilOrigin-Name: 9d9b1da54a555e8fb6037d63d1952458c12956d2

1 files changed, 8 insertions, 0 deletions

diff --git a/src/btree.c b/src/btree.c
index a1877ebfe..dd37112c3 100644
--- a/src/btree.c
+++ b/src/btree.c
@@ -7269,6 +7269,14 @@ static int btreeCreateTable(Btree *p, int *piTable, int createTabFlags){
       u8 eType = 0;
       Pgno iPtrPage = 0;
 
+      /* Save the positions of any open cursors. This is required in
+      ** case they are holding a reference to an xFetch reference
+      ** corresponding to page pgnoRoot.  */
+      rc = saveAllCursors(pBt, 0, 0);
+      if( rc!=SQLITE_OK ){
+        return rc;
+      }
+
       releasePage(pPageMove);
 
       /* Move the page currently at pgnoRoot to pgnoMove. */