zddr commented on code in PR #49041:
URL: https://github.com/apache/doris/pull/49041#discussion_r2053795644
##########
fe/fe-core/src/main/java/org/apache/doris/mtmv/MTMVService.java:
##########
@@ -207,12 +209,19 @@ public void processEvent(Event event) throws
EventException {
}
}
- private boolean canRefresh(MTMV mtmv, TableIf table) {
+ private boolean canRefresh(MTMV mtmv, TableIf table) {
if (mtmv.getExcludedTriggerTables().contains(table.getName())) {
LOG.info("skip refresh mtmv: {}, because exclude trigger table:
{}",
mtmv.getName(), table.getName());
return false;
}
+ // replace/alter base table,not change MTMVRelation, only change MTMV
to schema_change,
+ // Therefore, it may trigger incorrect materialized view refresh
+ if (mtmv.getStatus().getState().equals(MTMVState.SCHEMA_CHANGE)) {
+ LOG.info("skip refresh mtmv: {}, because state is SCHEMA_CHANGE,
trigger table: {}",
+ mtmv.getName(), table.getName());
+ return false;
Review Comment:
This is to check if a task should be generated, as it cannot be checked
while the task is running
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