yoock commented on code in PR #54033:
URL: https://github.com/apache/doris/pull/54033#discussion_r2241759490
##########
fe/fe-core/src/main/java/org/apache/doris/job/extensions/mtmv/MTMVTask.java:
##########
@@ -230,7 +242,38 @@ public void run() throws JobException {
MetaLockUtils.readLockTables(tableIfs);
try {
context = MTMVRefreshContext.buildContext(mtmv);
- this.needRefreshPartitions =
calculateNeedRefreshPartitions(context);
+ if (mtmv.getIncrementalRefresh()) {
+ Set<BaseTableInfo> baseTables =
relation.getBaseTablesOneLevel();
+ if (baseTables.size() != 1) {
+ throw new RuntimeException("Only support incremental
refresh for single table MTMV");
+ }
+ BaseTableInfo baseTableInfo = baseTables.iterator().next();
+ MTMVSnapshotIf mvSnapshot =
mtmv.getRefreshSnapshot().getMVSnapshot(mtmv.getName(), baseTableInfo);
Review Comment:
The snapshot information is persisted through the following methods：
<img width="663" height="411" alt="image"
src="https://github.com/user-attachments/assets/40978973-fc4b-4832-a3cd-2cc5e62485f4";
/>
<img width="1034" height="198" alt="image"
src="https://github.com/user-attachments/assets/72cc04d7-aaa8-47e2-bca1-c998fc72b1f0";
/>
<img width="904" height="148" alt="image"
src="https://github.com/user-attachments/assets/68f352fa-f33b-4668-9ecc-7163dab8b756";
/>
<img width="804" height="335" alt="image"
src="https://github.com/user-attachments/assets/33d6a1b6-99ca-4e84-8104-8d3b2d6b19fe";
/>
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