csun5285 commented on code in PR #67642:
URL: https://github.com/apache/doris/pull/67642#discussion_r3965910433
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fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java:
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@@ -2380,10 +2380,12 @@ public boolean isEnableHboNonStrictMatchingMode() {
+ "pushdown minmax on unique table.")
public boolean enablePushDownMinMaxOnUnique = false;
- // Whether enable push down string type minmax to scan node.
+ // Whether enable push down string type minmax to scan node. A string zone
map bound is cut to
+ // 512 bytes, and the storage layer skips the push down for the segments
whose bounds were
+ // actually cut, so turn this off only to stop pushing string minmax down
at all.
Review Comment:
好，我把开关改成：是否强制使用 zonemap
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