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

Class TestScanOrchestratorLateSchema

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.TestScanOrchestratorLateSchema

public class TestScanOrchestratorLateSchema
extends SubOperatorTest

Test the late-schema support in the scan orchestrator. "Late schema" is the case in which no table schema is provided up front, instead, the reader "discovers" the schema as it reads data. For example, the JSON reader learns the schema only as it sees each column.

The tests here focus on the scan orchestrator itself; the tests assume that tests for lower-level components have already passed.

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
TestScanOrchestratorLateSchema()

Method Summary

Modifier and Type	Method and Description
void	testLateSchemaSelectDisjoint() Test SELECT a, c FROM table(a, b)
void	testLateSchemaWildcard() Test SELECT * from an early-schema table of (a, b)

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

TestScanOrchestratorLateSchema

public TestScanOrchestratorLateSchema()

Method Detail

testLateSchemaWildcard

public void testLateSchemaWildcard()

Test SELECT * from an early-schema table of (a, b)

testLateSchemaSelectDisjoint

public void testLateSchemaSelectDisjoint()

Test SELECT a, c FROM table(a, b)