[iotdb] branch pushdownlimit created (now 349c8ce4a7)

[xi...@apache.org]

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xiangweiwei pushed a change to branch pushdownlimit
in repository https://gitbox.apache.org/repos/asf/iotdb.git


      at 349c8ce4a7 push down limit to rawdatasetwithValueFilter

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     new 349c8ce4a7 push down limit to rawdatasetwithValueFilter

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[iotdb] 01/01: push down limit to rawdatasetwithValueFilter

[xi...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

xiangweiwei pushed a commit to branch pushdownlimit
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit 349c8ce4a7dbe2c8d2de22432dba7d4ea5e116a2
Author: Alima777 <wx...@gmail.com>
AuthorDate: Fri May 6 10:20:23 2022 +0800

    push down limit to rawdatasetwithValueFilter
---
 .../iotdb/db/query/dataset/RawQueryDataSetWithValueFilter.java      | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/server/src/main/java/org/apache/iotdb/db/query/dataset/RawQueryDataSetWithValueFilter.java b/server/src/main/java/org/apache/iotdb/db/query/dataset/RawQueryDataSetWithValueFilter.java
index 63bf52feb3..f0cb49fdc6 100644
--- a/server/src/main/java/org/apache/iotdb/db/query/dataset/RawQueryDataSetWithValueFilter.java
+++ b/server/src/main/java/org/apache/iotdb/db/query/dataset/RawQueryDataSetWithValueFilter.java
@@ -185,11 +185,11 @@ public class RawQueryDataSetWithValueFilter extends QueryDataSet implements IUDF
 
   private boolean cacheRowInObjects() throws IOException {
     int cachedTimeCnt = 0;
-    long[] cachedTimeArray = new long[fetchSize];
+    int timeArraySize = rowLimit > 0 ? Math.min(fetchSize, rowLimit + rowOffset) : fetchSize;
+    long[] cachedTimeArray = new long[timeArraySize];
 
-    // TODO: LIMIT constraint
     // 1. fill time array from time Generator
-    while (timeGenerator.hasNext() && cachedTimeCnt < fetchSize) {
+    while (timeGenerator.hasNext() && cachedTimeCnt < timeArraySize) {
       cachedTimeArray[cachedTimeCnt++] = timeGenerator.next();
     }
     if (cachedTimeCnt == 0) {