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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
import org.apache.iotdb.itbase.category.ClusterIT;

import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
Expand Down Expand Up @@ -238,4 +239,17 @@ public void testFilterWithUDTF() {
fail(throwable.getMessage());
}
}

@Test
public void testFilterWithEmptySatisfiedTimeRanges() {
try (Connection connection = EnvFactory.getEnv().getConnection();
Statement statement = connection.createStatement();
ResultSet resultSet =
statement.executeQuery("select count(*) from root.** where time >= 0 and time < 0")) {
Assert.assertTrue(resultSet.next());
Assert.assertEquals(0, resultSet.getInt(1));
} catch (SQLException throwable) {
fail(throwable.getMessage());
}
}
}
Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,11 @@ public void initQueryDataSource(QueryDataSource dataSource) {
orderUtils.setCurSeqFileIndex(dataSource);
curUnseqFileIndex = 0;

if (dataSource.isEmpty()) {
// no satisfied resources
return;
}

if (satisfiedTimeRange == null) {
long startTime = Long.MAX_VALUE;
long endTime = Long.MIN_VALUE;
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,11 @@ public List<TsFileResource> getUnseqResources() {
return unseqResources;
}

public boolean isEmpty() {
return (seqResources == null || seqResources.isEmpty())
&& (unseqResources == null || unseqResources.isEmpty());
}

@Override
public IQueryDataSource clone() {
QueryDataSource queryDataSource = new QueryDataSource(getSeqResources(), getUnseqResources());
Expand Down
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