Do not allow sqlite3_blob_open() to work on a any table that contains

generated columns, even columns of the table which are not generated themselves,
because such columns might be part of the expression of a STORED column.
This restriction could be relaxed some, but that would be a lot of code
for something that nobody ever uses.

FossilOrigin-Name: 6e84947123339f0ea2b7dabc6134a621eed09317f81647f15870ed50a0f7d1bc

3 files changed, 13 insertions, 8 deletions

diff --git a/manifest b/manifest
index 717ed8379..d7b2d8092 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\sa\sdropped\serror\scode\sin\sfts5.
-D 2024-08-28T15:54:46.677
+C Do\snot\sallow\ssqlite3_blob_open()\sto\swork\son\sa\sany\stable\sthat\scontains\ngenerated\scolumns,\seven\scolumns\sof\sthe\stable\swhich\sare\snot\sgenerated\sthemselves,\nbecause\ssuch\scolumns\smight\sbe\spart\sof\sthe\sexpression\sof\sa\sSTORED\scolumn.\nThis\srestriction\scould\sbe\srelaxed\ssome,\sbut\sthat\swould\sbe\sa\slot\sof\scode\nfor\ssomething\sthat\snobody\sever\suses.
+D 2024-08-28T19:13:16.654
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -841,7 +841,7 @@ F src/vdbe.h c2549a215898a390de6669cfa32adba56f0d7e17ba5a7f7b14506d6fd5f0c36a
 F src/vdbeInt.h 949669dfd8a41550d27dcb905b494f2ccde9a2e6c1b0b04daa1227e2e74c2b2c
 F src/vdbeapi.c 80235ac380e9467fec1cb0883354d841f2a771976e766995f7e0c77f845406df
 F src/vdbeaux.c 25d685cafe119ff890c94345e884ea558a6b5d823bfa52ba708eb8ff3c70aa71
-F src/vdbeblob.c 13f9287b55b6356b4b1845410382d6bede203ceb29ef69388a4a3d007ffacbe5
+F src/vdbeblob.c 255be187436da38b01f276c02e6a08103489bbe2a7c6c21537b7aecbe0e1f797
 F src/vdbemem.c 831a244831eaa45335f9ae276b50a7a82ee10d8c46c2c72492d4eb8c98d94d89
 F src/vdbesort.c d0a3c7056c081703c8b6d91ad60f17da5e062a5c64bf568ed0fa1b5f4cae311f
 F src/vdbetrace.c fe0bc29ebd4e02c8bc5c1945f1d2e6be5927ec12c06d89b03ef2a4def34bf823
@@ -2211,8 +2211,8 @@ F vsixtest/vsixtest.tcl 6195aba1f12a5e10efc2b8c0009532167be5e301abe5b31385638080
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P eb016f66ea2c7ebacf8c57495843db3414602d062e4a430f2cc603c88b10c3f9
-R 78d4e3d98d20e086c6528776d2d5c051
-U dan
-Z 1a3069fd43dc36b1a74436c6f020d339
+P df55502e4f412e5b1daccf82f11fa4eb932047d9972dcd16e36be00cf09f78e1
+R e1af11959b2bec73273fe58897c14052
+U drh
+Z 762ce3d8ddc624dbf22ecdf6a6f25bea
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 183857bc4..aec5cf28d 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-df55502e4f412e5b1daccf82f11fa4eb932047d9972dcd16e36be00cf09f78e1
+6e84947123339f0ea2b7dabc6134a621eed09317f81647f15870ed50a0f7d1bc
diff --git a/src/vdbeblob.c b/src/vdbeblob.c
index 522447dbc..6cb36da37 100644
--- a/src/vdbeblob.c
+++ b/src/vdbeblob.c
@@ -167,6 +167,11 @@ int sqlite3_blob_open(
       pTab = 0;
       sqlite3ErrorMsg(&sParse, "cannot open table without rowid: %s", zTable);
     }
+    if( pTab && (pTab->tabFlags&TF_HasGenerated)!=0 ){
+      pTab = 0;
+      sqlite3ErrorMsg(&sParse, "cannot open table with generated columns: %s",
+                      zTable);
+    }
 #ifndef SQLITE_OMIT_VIEW
     if( pTab && IsView(pTab) ){
       pTab = 0;