From e6ce4a2c2645a7990233a16633da5282165ec312 Mon Sep 17 00:00:00 2001
From: 924060929 <924060929@qq.com>
Date: Thu, 26 Sep 2024 22:52:51 +0800
Subject: [PATCH] [fix](meta) fix Unknown column 'mva_SUM__CAST` (#41285)

## Proposed changes

cherry pick from #41283
---
 .../doris/catalog/MaterializedIndexMeta.java  | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/MaterializedIndexMeta.java b/fe/fe-core/src/main/java/org/apache/doris/catalog/MaterializedIndexMeta.java
index 68077c87af..ca52afd3b6 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/MaterializedIndexMeta.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/MaterializedIndexMeta.java
@@ -18,6 +18,7 @@
 package org.apache.doris.catalog;
 
 import org.apache.doris.analysis.Analyzer;
+import org.apache.doris.analysis.CastExpr;
 import org.apache.doris.analysis.CreateMaterializedViewStmt;
 import org.apache.doris.analysis.Expr;
 import org.apache.doris.analysis.SlotRef;
@@ -214,6 +215,24 @@ public class MaterializedIndexMeta implements Writable, GsonPostProcessable {
                 }
             }
 
+            boolean isCastSlot =
+                    entry.getValue() instanceof CastExpr && entry.getValue().getChild(0) instanceof SlotRef;
+
+            // Compatibility code for older versions of mv
+            // old version:
+            // goods_number -> mva_SUM__CAST(`goods_number` AS BIGINT)
+            // new version:
+            // goods_number -> mva_SUM__CAST(`goods_number` AS bigint)
+            if (isCastSlot && !match) {
+                for (Column column : schema) {
+                    if (column.getName().equalsIgnoreCase(entry.getKey())) {
+                        column.setDefineExpr(entry.getValue());
+                        match = true;
+                        break;
+                    }
+                }
+            }
+
             if (!match) {
                 // Compatibility code for older versions of mv
                 // store_id -> mv_store_id