seawinde commented on code in PR #28596:
URL: https://github.com/apache/doris/pull/28596#discussion_r1431451701
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/exploration/mv/AbstractMaterializedViewRule.java:
##########
@@ -80,40 +101,51 @@ protected List<Plan> rewrite(Plan queryPlan,
CascadesContext cascadesContext) {
if (queryPlan.getGroupExpression().isPresent()
&& materializationContext.alreadyRewrite(
queryPlan.getGroupExpression().get().getOwnerGroup().getGroupId())) {
+ logger.info(currentClassName + " this group is already
rewritten so skip");
continue;
}
- Plan mvPlan =
materializationContext.getMtmv().getCache().getLogicalPlan();
- List<StructInfo> viewStructInfos = extractStructInfo(mvPlan,
cascadesContext);
+ MTMV mtmv = materializationContext.getMTMV();
+ MTMVCache mtmvCache = getCacheFromMTMV(mtmv, cascadesContext);
+ if (mtmvCache == null) {
+ logger.info(currentClassName + " mv cache is null so return");
+ return rewriteResults;
+ }
+ List<StructInfo> viewStructInfos =
extractStructInfo(mtmvCache.getLogicalPlan(), cascadesContext);
if (viewStructInfos.size() > 1) {
// view struct info should only have one
+ logger.info(currentClassName + " the num of view struct info
is more then one so return");
Review Comment:
have fixed it
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