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

Class TestScalars

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.TestScalars

public class TestScalars
extends BaseJsonLoaderTest

Tests JSON scalar handling. Without a schema, the first non-null value determines the type of the column. With a schema, then the schema determines the column type independent of the first data row.

In either case, all scalars perform conversion from all other scalars. If data is clean, then the conversion will never be used. If the data is messy, then the result, when combined with a schema, produces a repeatable (if perhaps still messy) result. The goal is that, with a schema, the query should not fail due to a few messy rows a billion rows in, or due to the order that the scanners see the data.

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
TestScalars()

Method Summary

Modifier and Type	Method and Description
void	testAllTextBoolean()
void	testAllTextFloat()
void	testAllTextInt()
void	testAllTextString()
void	testBoolean() Test Boolean type using type inference to guess the type from the first row of data.
void	testBooleanWithSchema() Test Boolean with a provided schema which states the column type independent of the first value.
void	testFloat()
void	testFloatWithError()
void	testFloatWithSchema()
void	testInt()
void	testIntAsDouble()
void	testIntWithError() There are limits on Drill's generosity.
void	testIntWithSchema()
void	testProvidedSchemaNumbers()
void	testProvidedSchemaWithBinary()
void	testProvidedSchemaWithDates()
void	testProvidedSchemaWithIntervals()
void	testString()
void	testStringWithSchema()

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

TestScalars

public TestScalars()

Method Detail

testBoolean

public void testBoolean()

Test Boolean type using type inference to guess the type from the first row of data. All other types can be converted to Boolean.

testAllTextBoolean

public void testAllTextBoolean()

testBooleanWithSchema

public void testBooleanWithSchema()

Test Boolean with a provided schema which states the column type independent of the first value. Test with leading values which are not Boolean.

testInt

public void testInt()

testIntAsDouble

public void testIntAsDouble()

testAllTextInt

public void testAllTextInt()

testIntWithSchema

public void testIntWithSchema()

testIntWithError

public void testIntWithError()

There are limits on Drill's generosity. If no conversion exists to int, the query will fail with a descriptive error.

testFloat

public void testFloat()

testAllTextFloat

public void testAllTextFloat()

testFloatWithSchema

public void testFloatWithSchema()

testFloatWithError

public void testFloatWithError()

testString

public void testString()

testAllTextString

public void testAllTextString()

testStringWithSchema

public void testStringWithSchema()

testProvidedSchemaNumbers

public void testProvidedSchemaNumbers()

testProvidedSchemaWithDates

public void testProvidedSchemaWithDates()

testProvidedSchemaWithIntervals

public void testProvidedSchemaWithIntervals()

testProvidedSchemaWithBinary

public void testProvidedSchemaWithBinary()