Fix a problem in the incr-blob code causing a new cursor to be opened for

every sqlite3_blob_reopen() call.

FossilOrigin-Name: 41ef34a1f0650c50cacb203665cd9d57db53a49c979bf0d5a78937517f763a2c

1 files changed, 4 insertions, 3 deletions

diff --git a/src/vdbeblob.c b/src/vdbeblob.c
index 16a2c0f36..427979269 100644
--- a/src/vdbeblob.c
+++ b/src/vdbeblob.c
@@ -63,11 +63,12 @@ static int blobSeekToRow(Incrblob *p, sqlite3_int64 iRow, char **pzErr){
   v->aMem[1].u.i = iRow;
 
   /* If the statement has been run before (and is paused at the OP_ResultRow)
-  ** then back it up to the point where it does the OP_SeekRowid.  This could
+  ** then back it up to the point where it does the OP_NotExists.  This could
   ** have been down with an extra OP_Goto, but simply setting the program
   ** counter is faster. */
-  if( v->pc>3 ){
-    v->pc = 3;
+  if( v->pc>4 ){
+    v->pc = 4;
+    assert( v->aOp[v->pc].opcode==OP_NotExists );
     rc = sqlite3VdbeExec(v);
   }else{
     rc = sqlite3_step(p->pStmt);