org.apache.drill.exec.store.easy.json.loader

Class TestUnknowns

java.lang.Object

org.apache.drill.test.BaseTest

org.apache.drill.test.DrillTest

org.apache.drill.test.SubOperatorTest

org.apache.drill.exec.store.easy.json.loader.BaseJsonLoaderTest

org.apache.drill.exec.store.easy.json.loader.TestUnknowns

public class TestUnknowns
extends BaseJsonLoaderTest

Tests the ability of the JSON reader to "wait out" a set of leading null or empty array values to wait until an actual value appears before deciding on the column type. Hitting the end of batch, or an array that contains only null values, forces resolution to VARCHAR.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.store.easy.json.loader.BaseJsonLoaderTest

BaseJsonLoaderTest.JsonLoaderFixture

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
TestUnknowns()

Method Summary

Modifier and Type	Method and Description
void	testArrayToBooleanArray()
void	testArrayToBooleanScalar()
void	testArrayToNullJson()
void	testArrayToNullVarchar()
void	testArrayToObjectArray()
void	testForcedArrayResolve() Input contains all nulls.
void	testForcedNullResolve() Input contains all nulls.
void	testNullToArrayToBoolean()
void	testNullToBoolean()
void	testNullToObject()
void	testNullToString()

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

TestUnknowns

public TestUnknowns()

Method Detail

testNullToBoolean

public void testNullToBoolean()

testNullToString

public void testNullToString()

testNullToObject

public void testNullToObject()

testForcedNullResolve

public void testForcedNullResolve()

Input contains all nulls. The loader will force resolve to a type, and will choose VARCHAR as all scalar types which may later appear can be converted to VARCHAR.

testArrayToBooleanArray

public void testArrayToBooleanArray()

testArrayToBooleanScalar

public void testArrayToBooleanScalar()

testForcedArrayResolve

public void testForcedArrayResolve()

Input contains all nulls. The loader will force resolve to a type, and will choose VARCHAR as all scalar types which may later appear can be converted to VARCHAR.

testNullToArrayToBoolean

public void testNullToArrayToBoolean()

testArrayToNullJson

public void testArrayToNullJson()

testArrayToNullVarchar

public void testArrayToNullVarchar()

testArrayToObjectArray

public void testArrayToObjectArray()