Test that the left and right sides of a compound SELECT operator have the same number of expressions in the expanded expression list before beginning to generate code.
FossilOrigin-Name: 4df852ce26c95d5d23c83dbe9c59d2c3435acddf
diff --git a/src/resolve.c b/src/resolve.c
index 27eba9f..fd57fd7 100644
--- a/src/resolve.c
+++ b/src/resolve.c
@@ -1331,6 +1331,13 @@
}
}
+ /* If this is part of a compound SELECT, check that it has the right
+ ** number of expressions in the select list. */
+ if( p->pNext && p->pEList->nExpr!=p->pNext->pEList->nExpr ){
+ sqlite3SelectWrongNumTermsError(pParse, p->pNext);
+ return WRC_Abort;
+ }
+
/* Advance to the next term of the compound
*/
p = p->pPrior;