[BugFix] Fix incorrect slot id for auto increment column in plan when…

… loading

Signed-off-by: srlch <[email protected]>

fe/fe-core/src/main/java/com/starrocks/planner/OlapTableSink.java

@@ -160,7 +160,7 @@ public OlapTableSink(OlapTable dstTable, TupleDescriptor tupleDescriptor, List<L
             for (int i = 0; i < this.tupleDescriptor.getSlots().size(); ++i) {
                 SlotDescriptor slot = this.tupleDescriptor.getSlots().get(i);
                 if (slot.getColumn().isAutoIncrement()) {
-                    this.autoIncrementSlotId = i;
+                    this.autoIncrementSlotId = slot.getId().asInt();
                     break;
                 }
             }