org.apache.drill.exec.physical.resultSet.impl

Class TestResultSetLoaderMaps

java.lang.Object

DrillTest

org.apache.drill.test.SubOperatorTest

org.apache.drill.exec.physical.resultSet.impl.TestResultSetLoaderMaps

public class TestResultSetLoaderMaps
extends SubOperatorTest

Test (non-array) map support in the result set loader and related classes.

Field Summary

Fields inherited from class org.apache.drill.test.SubOperatorTest

dirTestWatcher, fixture

Constructor Summary

Constructors

Constructor and Description
TestResultSetLoaderMaps()

Method Summary

Modifier and Type	Method and Description
void	testBasics()
void	testEmptyMapAddition() Test adding an empty map to a loader after writing the first row.
void	testMapAddition() Test adding a map to a loader after writing the first row.
void	testMapEvolution() Create schema with a map, then add columns to the map after delivering the first batch.
void	testMapOverflowWithNewColumn() Test the case in which a new column is added during the overflow row.
void	testMapWithArray() Test a map that contains a scalar array.
void	testMapWithOverflow() Create a schema with a map, then trigger an overflow on one of the columns in the map.
void	testNameSpace() Verify that map name spaces (and implementations) are independent.
void	testNestedMapsNullable() Create nested maps.
void	testNestedMapsRequired() Create nested maps.
void	testOverwriteRow() Version of the {#link TestResultSetLoaderProtocol#testOverwriteRow()} test that uses nested columns.

Methods inherited from class org.apache.drill.test.SubOperatorTest

classSetup, classTeardown

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TestResultSetLoaderMaps

public TestResultSetLoaderMaps()

Method Detail

testBasics

public void testBasics()

testMapEvolution

public void testMapEvolution()

Create schema with a map, then add columns to the map after delivering the first batch. The new columns should appear in the second-batch output.

testMapAddition

public void testMapAddition()

Test adding a map to a loader after writing the first row.

testEmptyMapAddition

public void testEmptyMapAddition()

Test adding an empty map to a loader after writing the first row. Then add columns in another batch. Yes, this is a bizarre condition, but we must check it anyway for robustness.

testNestedMapsRequired

public void testNestedMapsRequired()

Create nested maps. Then, add columns to each map on the fly. Use required, variable-width columns since those require the most processing and are most likely to fail if anything is out of place.

testNestedMapsNullable

public void testNestedMapsNullable()

Create nested maps. Then, add columns to each map on the fly. This time, with nullable types.

testMapWithArray

public void testMapWithArray()

Test a map that contains a scalar array. No reason to suspect that this will have problem as the array writer is fully tested in the accessor subsystem. Still, need to test the cardinality methods of the loader layer.

testMapWithOverflow

public void testMapWithOverflow()

Create a schema with a map, then trigger an overflow on one of the columns in the map. Proper overflow handling should occur regardless of nesting depth.

testMapOverflowWithNewColumn

public void testMapOverflowWithNewColumn()

Test the case in which a new column is added during the overflow row. Unlike the top-level schema case, internally we must create a copy of the map, and move vectors across only when the result is to include the schema version of the target column. For overflow, the new column is added after the first batch; it is added in the second batch that contains the overflow row in which the column was added.

testOverwriteRow

public void testOverwriteRow()

Version of the {#link TestResultSetLoaderProtocol#testOverwriteRow()} test that uses nested columns.

testNameSpace

public void testNameSpace()

Verify that map name spaces (and implementations) are independent.