[Bug](stream-load) fix stream load failed on table with rollup (#29665)

fix stream load failed on table with rollup

fe/fe-core/src/main/java/org/apache/doris/load/Load.java

@@ -460,6 +460,9 @@ public class Load {
         Map<String, Expr> mvDefineExpr = Maps.newHashMap();
         for (Column column : tbl.getFullSchema()) {
             if (column.getDefineExpr() != null) {
+                if (column.getDefineExpr().getType().isInvalid()) {
+                    column.getDefineExpr().setType(column.getType());
+                }
                 mvDefineExpr.put(column.getName(), column.getDefineExpr());
             }
         }