JackieTien97 commented on a change in pull request #1651:
URL: https://github.com/apache/incubator-iotdb/pull/1651#discussion_r477269148
##########
File path:
server/src/main/java/org/apache/iotdb/db/query/timegenerator/ServerTimeGenerator.java
##########
@@ -65,19 +67,42 @@ public ServerTimeGenerator(IExpression expression,
QueryContext context, RawData
@Override
protected IBatchReader generateNewBatchReader(SingleSeriesExpression
expression)
throws IOException {
- Filter filter = expression.getFilter();
+ Filter valueFilter = expression.getFilter();
Path path = expression.getSeriesPath();
TSDataType dataType;
QueryDataSource queryDataSource;
try {
dataType = IoTDB.metaManager.getSeriesType(path.getFullPath());
- queryDataSource =
QueryResourceManager.getInstance().getQueryDataSource(path, context, filter);
- // update filter by TTL
- filter = queryDataSource.updateFilterUsingTTL(filter);
+ queryDataSource =
QueryResourceManager.getInstance().getQueryDataSource(path, context,
valueFilter);
+ // update valueFilter by TTL
+ valueFilter = queryDataSource.updateFilterUsingTTL(valueFilter);
} catch (Exception e) {
throw new IOException(e);
}
- return new SeriesRawDataBatchReader(path,
queryPlan.getAllMeasurementsInDevice(path.getDevice()), dataType, context,
queryDataSource, null, filter, null);
+ // get the TimeFilter part in SingleSeriesExpression
+ Filter timeFilter = getTimeFilter(valueFilter);
+
+ return new SeriesRawDataBatchReader(path,
queryPlan.getAllMeasurementsInDevice(path.getDevice()), dataType, context,
queryDataSource, timeFilter, valueFilter, null);
+ }
+
+ /**
+ * extract time filter from a value filter
+ */
+ private Filter getTimeFilter(Filter filter) {
+ if (filter instanceof UnaryFilter && ((UnaryFilter)
filter).getFilterType() == FilterType.TIME_FILTER) {
+ return filter;
+ }
+ if (filter instanceof AndFilter) {
+ Filter leftTimeFilter = getTimeFilter(((AndFilter) filter).getLeft());
+ Filter rightTimeFilter = getTimeFilter(((AndFilter) filter).getRight());
+ if (leftTimeFilter != null && rightTimeFilter != null) {
+ return filter;
+ } else if (leftTimeFilter != null) {
+ return leftTimeFilter;
+ } else
Review comment:
fix
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