Following a prior error, an ALWAYS() in sqlite3ExprCanBeNull() might be false.

dbsqlfuzz 5dbec6678a20e7595a34dfdd869a3b9722b3ca43.

FossilOrigin-Name: 4e207401acce1bdc17025f2d55bd94234b435e286cd43e1eda03b6949a2a91d3

manifest

@@ -1,5 +1,5 @@
-C Version\s3.37.0
-D 2021-11-27T14:13:22.430
+C Following\sa\sprior\serror,\san\sALWAYS()\sin\ssqlite3ExprCanBeNull()\smight\sbe\sfalse.\ndbsqlfuzz\s5dbec6678a20e7595a34dfdd869a3b9722b3ca43.
+D 2021-11-28T19:54:38.307
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 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -502,7 +502,7 @@ F src/date.c fa928630fecf1d436cdc7a7a5c950c781709023ca782c21b7a43cc7361a9451e
 F src/dbpage.c 8a01e865bf8bc6d7b1844b4314443a6436c07c3efe1d488ed89e81719047833a
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 F src/delete.c 0c151975fa99560767d7747f9b60543d0093d9f8b89f13d2d6058e9c83ad19e7
-F src/expr.c 4b6dfb224b6234ff4f529023993b503048e1b045ff49cbb911e7d28a28cca795
+F src/expr.c 827179c78d2ca7cc318392811de8151c60eacf7ce804b13e61bb7ef38f954846
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@@ -1933,10 +1933,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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-T +sym-major-release *
-T +sym-release *
-T +sym-version-3.37.0 *
+P bd41822c7424d393a30e92ff6cb254d25c26769889c1499a18a0b9339f5d6c8a
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+Z 9896c4e7bad9bcf4c4f3ad7c3deddb22

manifest.uuid

@@ -1 +1 @@
-bd41822c7424d393a30e92ff6cb254d25c26769889c1499a18a0b9339f5d6c8a
+4e207401acce1bdc17025f2d55bd94234b435e286cd43e1eda03b6949a2a91d3

src/expr.c

@@ -2457,7 +2457,7 @@ int sqlite3ExprCanBeNull(const Expr *p){
       return ExprHasProperty(p, EP_CanBeNull) ||
              p->y.pTab==0 ||  /* Reference to column of index on expression */
              (p->iColumn>=0
-              && ALWAYS(p->y.pTab->aCol!=0) /* Defense against OOM problems */
+              && p->y.pTab->aCol!=0 /* Possible due to prior error */
               && p->y.pTab->aCol[p->iColumn].notNull==0);
     default:
       return 1;