org.apache.drill.exec.store.easy.text.compliant

Class TextCsvWithoutHeadersWithSchema

java.lang.Object

org.apache.drill.test.BaseTest

org.apache.drill.test.DrillTest

org.apache.drill.test.ClusterTest

org.apache.drill.exec.store.easy.text.compliant.BaseCsvTest

org.apache.drill.exec.store.easy.text.compliant.TextCsvWithoutHeadersWithSchema

public class TextCsvWithoutHeadersWithSchema
extends BaseCsvTest

Tests the combination of a CSV file without headers, but with a provided schema. The provided schema must list columns in the order they appear in the file, with no holes. The column list need not be exhaustive, however, there can be unlabeled columns at the end which are ignored. No `columns` array is created in this case.

Not exhaustive: once we get past building the schema, operation is identical to the with-headers, with-schema case.

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.exec.store.easy.text.compliant.BaseCsvTest

BIG_COL_SIZE, EMPTY_FILE, FILE_N_NAME, NESTED_DIR, NESTED_FILE, PART_DIR, ROOT_FILE, SCHEMA_BATCH_ENABLED, secondFile, testDir, validHeaders

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

client, cluster, dirTestWatcher

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

logOutcome, objectMapper, REPEAT_RULE, thrownException, TIMEOUT

Constructor Summary

Constructors

Constructor and Description
TextCsvWithoutHeadersWithSchema()

Method Summary

Modifier and Type	Method and Description
void	filenameColumn() Test with an implicit column.
static void	setup()
void	testBasicSchema() Test the simplest possible case: a table with one file: Column in projection, table, and schema Column in projection, but not in schema or table. Column in schema and table, but not in projection. Column in table (at end of row), but not in schema Also tests type conversion, including "empty" (no) conversion.
void	testMissingColumn() Test column in schema, not in file.

Methods inherited from class org.apache.drill.exec.store.easy.text.compliant.BaseCsvTest

buildBigColFile, buildFile, buildFile, buildNestedTable, buildTable, enableMultiScan, enableSchema, enableSchemaSupport, resetMultiScan, resetSchema, resetSchemaSupport, setup, setup

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

getFile, queryBuilder, run, runAndLog, runAndPrint, runAndPrint, shutdown, startCluster, testBuilder

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

TextCsvWithoutHeadersWithSchema

public TextCsvWithoutHeadersWithSchema()

Method Detail

setup

public static void setup()
                  throws Exception

Throws:

Exception

testBasicSchema

public void testBasicSchema()
                     throws Exception

Test the simplest possible case: a table with one file:

• Column in projection, table, and schema
• Column in projection, but not in schema or table.
• Column in schema and table, but not in projection.
• Column in table (at end of row), but not in schema

Also tests type conversion, including "empty" (no) conversion.

Throws:

Exception

testMissingColumn

public void testMissingColumn()
                       throws Exception

Test column in schema, not in file.

Throws:

Exception

filenameColumn

public void filenameColumn()
                    throws Exception

Test with an implicit column.

Throws:

Exception