org.apache.drill.exec.physical.impl.scan

Class TestScanOrchestratorImplicitColumns

java.lang.Object

org.apache.drill.test.BaseTest

org.apache.drill.test.DrillTest

org.apache.drill.test.SubOperatorTest

org.apache.drill.exec.physical.impl.scan.TestScanOrchestratorImplicitColumns

public class TestScanOrchestratorImplicitColumns
extends SubOperatorTest

Tests the scan orchestrator's ability to merge table schemas with implicit file columns provided by the file metadata manager.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.test.DrillTest

DrillTest.MemWatcher

Field Summary

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

dirTestWatcher, fixture

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

logOutcome, objectMapper, REPEAT_RULE, thrownException, TIMEOUT

Constructor Summary

Constructors

Constructor and Description
TestScanOrchestratorImplicitColumns()

Method Summary

Modifier and Type	Method and Description
void	testEarlySchemaSelectAllAndMetadata() Test SELECT a, b, dir0, suffix FROM table(a, b) dir0, suffix are file metadata columns
void	testMetadataMulti() Verify that metadata columns follow distinct files SELECT dir0, filename, b FROM (a.csv, b.csv)
void	testMixture() Test SELECT dir0, b, suffix, c FROM table(a, b) Full combination of metadata, table and null columns
void	testSelectNone() Test SELECT c FROM table(a, b) The result set will be one null column for each record, but no file data.
void	testWildcardWithMetadata() Resolve a selection list using SELECT *.

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

classSetup, classTeardown

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

escapeJsonString, finishDrillTest, initDrillTest

Methods inherited from class java.lang.Object

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

Constructor Detail

TestScanOrchestratorImplicitColumns

public TestScanOrchestratorImplicitColumns()

Method Detail

testWildcardWithMetadata

public void testWildcardWithMetadata()
                              throws IOException

Resolve a selection list using SELECT *.

Throws:

IOException

testSelectNone

public void testSelectNone()

Test SELECT c FROM table(a, b) The result set will be one null column for each record, but no file data.

testEarlySchemaSelectAllAndMetadata

public void testEarlySchemaSelectAllAndMetadata()

Test SELECT a, b, dir0, suffix FROM table(a, b) dir0, suffix are file metadata columns

testMixture

public void testMixture()

Test SELECT dir0, b, suffix, c FROM table(a, b) Full combination of metadata, table and null columns

testMetadataMulti

public void testMetadataMulti()

Verify that metadata columns follow distinct files
SELECT dir0, filename, b FROM (a.csv, b.csv)