fix varchar(0) correctly

seawinde · Nov 24, 2023 · d17ec3a · d17ec3a
1 parent c5f58dd
commit d17ec3a
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/fe/fe-common/src/main/java/org/apache/doris/catalog/ScalarType.java b/fe/fe-common/src/main/java/org/apache/doris/catalog/ScalarType.java
@@ -1060,6 +1060,11 @@ public static ScalarType getAssignmentCompatibleType(
             if (t1.type == PrimitiveType.STRING || t2.type == PrimitiveType.STRING) {
                 return createStringType();
             }
+            int minLength = Math.min(t1.len, t2.len);
+            if (minLength < 0) {
+                // If < 0 which means max length, use firstly
+                return createVarcharType(minLength);
+            }
             int length = Math.max(t1.len, t2.len);
             return createVarcharType(length == 0 ? MAX_VARCHAR_LENGTH : length);
         }