For the MULTI-INDEX-OR optimization, when pushing down WHERE clause terms from

the main query into the various OR-term subqueries, do not push down slices
of a vector comparison, since the right-hand operand of the comparison might
have only been initialized in a different OR branch that was not taken.
dbsqlfuzz 80a9fade844b4fb43564efc972bcb2c68270f5d1.

FossilOrigin-Name: 9f67ad00cd38b7c5ec6d14b379e1a611777bbdf6901d843a80712ba7d94d6d33

src/whereInt.h

@@ -285,6 +285,7 @@ struct WhereTerm {
 #else
 #  define TERM_HIGHTRUTH  0      /* Only used with STAT4 */
 #endif
+#define TERM_SLICE      0x8000 /* One slice of a row-value/vector comparison */
 
 /*
 ** An instance of the WhereScan object is used as an iterator for locating