vsop-479 commented on code in PR #13253:
URL: https://github.com/apache/lucene/pull/13253#discussion_r1613171816
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lucene/core/src/java/org/apache/lucene/codecs/lucene90/blocktree/SegmentTermsEnum.java:
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@@ -434,8 +436,29 @@ public boolean seekExact(BytesRef target) throws
IOException {
// System.out.println(" target is before current (shares
prefixLen=" + targetUpto + ");
// rewind frame ord=" + lastFrame.ord);
// }
+
+ // We got lastFrame by comparing target and term, and target less than
last seeked term in
+ // currentFrame. If lastFrame's fp is same with currentFrame's fp, we
can reduce entCount to
+ // nextEnt.
+ boolean currentIsLast = currentFrame.fp == lastFrame.fp;
currentFrame = lastFrame;
- currentFrame.rewind();
+
+ // Only rewindWithoutReload for non-floor block or first floor block.
+ // TODO: We need currentFrame's first entry to judge whether we can
rewindWithoutReload for
+ // non-first floor blocks.
+ if (currentFrame.fp != currentFrame.fpOrig
Review Comment:
Maybe `currentFrame.nextEnt == -1` is enough for both unloaded or rewinded
block, I will confirm that.
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