morrySnow commented on code in PR #31875:
URL: https://github.com/apache/doris/pull/31875#discussion_r1522445959
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/util/PlanUtils.java:
##########
@@ -125,6 +126,28 @@ public static ImmutableSet<TableIf>
getTableSet(LogicalPlan plan) {
return resultSet;
}
+ /**
+ * Check if slot is from the plan.
+ */
+ public static boolean checkSlotFrom(Plan plan, SlotReference slot) {
+ Set<LogicalCatalogRelation> tableSets =
PlanUtils.getLogicalScanFromRootPlan((LogicalPlan) plan);
+ for (LogicalCatalogRelation table : tableSets) {
+ if (table.getOutputExprIds().contains(slot.getExprId())) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Check if the expression is a column reference.
+ */
+ public static boolean isColumnRef(Expression expr) {
+ return expr instanceof SlotReference
+ && ((SlotReference) expr).getColumn().isPresent()
+ && ((SlotReference) expr).getTable().isPresent();
+ }
Review Comment:
use `Expression#isColumnFromTable`
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