[fix](meta) fix Unknown column 'mva_SUM__CAST` (#41283)

fix insert into select statement failed when upgrade doris, introduced
by #38012
```sql
ERROR 1054 (42S22): errCode = 2, detailMessage = Unknown column 'mva_SUM__CAST(`goods_number` AS BIGINT)' in 'dm_sales_settlement_day_goods'
```

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 @@ private void setColumnsDefineExpr(Map<String, Expr> columnNameToDefineExpr) thro
  }
  }
 
+ 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