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new 9864a5d [Enhance] Modify the error message when mv column is
transformed from base column in agg family table (#5084)
9864a5d is described below
commit 9864a5d818396e7a026f8cd8201878749cb6a4e3
Author: EmmyMiao87 <522274...@qq.com>
AuthorDate: Thu Dec 17 00:33:27 2020 +0800
[Enhance] Modify the error message when mv column is transformed from base
column in agg family table (#5084)
When user wants to create materialized view with a mv column which is
transformed
from original column in agg family table, Doris will throw a new error
message
"The mv column of agg or uniq table cannot be transformed from original
column"
instead of "column not exists".
---
.../src/main/java/org/apache/doris/alter/MaterializedViewHandler.java | 4 ++++
1 file changed, 4 insertions(+)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/alter/MaterializedViewHandler.java
b/fe/fe-core/src/main/java/org/apache/doris/alter/MaterializedViewHandler.java
index 1e0c14f..917e800 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/alter/MaterializedViewHandler.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/alter/MaterializedViewHandler.java
@@ -444,6 +444,10 @@ public class MaterializedViewHandler extends AlterHandler {
if (mvColumnItem.isKey()) {
++numOfKeys;
}
+ if (baseColumn == null) {
+ throw new DdlException("The mv column of agg or uniq table
cannot be transformed "
+ + "from original column[" +
mvColumnItem.getBaseColumnName() + "]");
+ }
Preconditions.checkNotNull(baseColumn, "Column[" +
mvColumnName + "] does not exist");
AggregateType baseAggregationType =
baseColumn.getAggregationType();
AggregateType mvAggregationType =
mvColumnItem.getAggregationType();
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