HangyuanLiu commented on a change in pull request #3651:
URL: https://github.com/apache/incubator-doris/pull/3651#discussion_r429155817
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File path: fe/src/main/java/org/apache/doris/alter/MaterializedViewHandler.java
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@@ -457,8 +462,23 @@ private RollupJobV2 createMaterializedViewJob(String
mvName, String baseIndexNam
+ "duplicate table");
}
Column newMVColumn = new Column(baseColumn);
+
newMVColumn.setIsKey(mvColumnItem.isKey());
newMVColumn.setAggregationType(mvAggregationType,
mvColumnItem.isAggregationTypeImplicit());
+ newMVColumn.setDefineExpr(mvColumnItem.getDefineExpr());
+ if (mvColumnItem.getDefineExpr() != null) {
+ if (mvAggregationType.equals(BITMAP_UNION)) {
+ newMVColumn.setType(Type.BITMAP);
+ newMVColumn.setName(MATERIALIZED_VIEW_NAME_PRFIX +
"bitmap_" + baseColumn.getName());
+ } else if (mvAggregationType.equals(HLL_UNION)){
+ newMVColumn.setType(Type.HLL);
+ newMVColumn.setName(MATERIALIZED_VIEW_NAME_PRFIX + "hll_"
+ baseColumn.getName());
+ } else {
+ throw new DdlException("The define expr of column is only
support bitmap_union or hll_union");
+ }
+ newMVColumn.setIsKey(false);
Review comment:
If the aggregate function is computed for the original column, it should
be not key whether the original column is a key column or a value column
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