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DRILL-7143: Support default value for empty columns

Modifies the prior work to add default values for columns. The prior work added defaults

when the entire column is missing from a reader (the old Nullable Int column). The Row

Set mechanism now will also "fill empty" slots with the default value.

Added default support for the column writers. The writers automatically obtain the

default value from the column schema. The default can also be set explicitly on

the column writer.

Updated the null column mechanism to use this feature rather than the ad-hoc

implemention in the prior commit.

Semantics changed a bit. Only Required columns take a default. The default value

is ignored or nullable columns since nullable columns already have a file default: NULL.

Other changes:

* Updated the CSV-with-schema tests to illustrate the new behavior.

* Made multiple fixes for Boolean and Decimal columns and added unit tests.

* Upgraded Fremarker to version 2.3.28 to allow use of the continue statement.

* Reimplemented the Bit column reader and writer to use the BitVector directly since this vector is rather special.

* Added get/set Boolean methods for column accessors

* Moved the BooleanType class to the common package

* Added more CSV unit tests to explore decimal types, booleans, and defaults

* Add special handling for blank fields in from-string conversions

* Added options to the conversion factory to specify blank-handling behavior.

CSV uses a mapping of blanks to null (nullable) or default value (non-nullable)

closes #1726

    • -0
    • +92
    ./src/main/java/org/apache/drill/common/types/BooleanType.java
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DRILL-7096: Develop vector for canonical Map<K,V>

- Added new type DICT;

- Created value vectors for the type for single and repeated modes;

- Implemented corresponding FieldReaders and FieldWriters;

- Made changes in EvaluationVisitor to be able to read values from the map by key;

- Made changes to DrillParquetGroupConverter to be able to read Parquet's MAP type;

- Added an option `store.parquet.reader.enable_map_support` to disable reading MAP type as DICT from Parquet files;

- Updated AvroRecordReader to use new DICT type for Avro's MAP;

- Added support of the new type to ParquetRecordWriter.

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DRILL-7011: Support schema in scan framework

* Adds schema support to the row set-based scan framework and to the "V3" text reader based on that framework.

* Adding the schema made clear that passing options as a long list of constructor arguments was not sustainable. Refactored code to use a builder pattern instead.

* Added support for default values in the "null column loader", which required adding a "setValue" method to the column accessors.

* Added unit tests for all new or changed functionality. See TestCsvWithSchema for the overall test of the entire integrated mechanism.

* Added tests for explicit projection with schema

* Better handling of date/time in column accessors

* Converted recent column metadata work from Java 8 date/time to Joda.

* Added more CSV-with-schema unit tests

* Removed the ID fields from "resolved columns", used "instanceof" instead.

* Added wildcard projection with an output schema. Handles both "lenient" and "strict" schemas.

* Tagged projection columns with their output schema, when available.

* Scan projection added modes for wildcard with an output schema. The reader projection added support for merging reader and output schemas.

* Includes refactoring of scan operator tests (the test file grew too large.)

* Renamed some classes to avoid confusing reader schemas with output schemas.

* Added unit tests for the new functionality.

* Added "lenient" wildcard with schema test for CSV

* Added more type conversions: string-to-bit, many-to-string

* Fixed bug in column writer for VarDecimal

* Added missing unit tests, and fixed bugs, in Bit column reader/writer

* Cleaned up a number of unneded "SuppressWarnings"

closes #1711

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DRILL-7092: Rename map to struct in schema definition 1. Renamed map to struct in schema parser. 2. Updated sqlTypeOf function to return STRUCT instead of MAP, drillTypeOf function will return MAP as before until internal renaming is done. 3. Add is_struct alias to already existing is_map function. Function should be revisited once Drill supports true maps. 4. Updated unit tests.

closes #1688

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DRILL-7068: Support memory adjustment framework for resource management with Queues. closes #1677

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DRILL-7200: Update Calcite to 1.19.0 / 1.20.0

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DRILL-6855: Do not load schema if there is an IOException

closes #1626

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DRILL-7046: Support for loading and parsing new RM config file closes #1652

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DRILL-7024: Refactor ColumnWriter to simplify type-conversion shim

DRILL-7006 added a type conversion "shim" within the row set framework. Basically, we insert a "shim" column writer that takes data in one form (String, say), and does reader-specific conversions to a target format (INT, say).

The code works fine, but the shim class ends up needing to override a bunch of methods which it then passes along to the base writer. This PR refactors the code so that the conversion shim is simpler.

closes #1633

    • -0
    • +26
    ./src/test/java/org/apache/drill/categories/RowSetTests.java
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[maven-release-plugin] prepare for next development iteration

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[maven-release-plugin] prepare release drill-1.15.0

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DRILL-6889: Exclude Drill unit tests to avoid Travis timing out

closes #1567

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DRILL-6870: Upgrade to ANTLR4

closes #1554

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DRILL-6760: Retain original exception in Verbose Error Message

closes #1519

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DRILL-540: Allow querying hive views in Drill

1. Added DrillHiveViewTable which allows construction of DrillViewTable based

on Hive metadata

2. Added initialization of DrillHiveViewTable in HiveSchemaFactory

3. Extracted conversion of Hive data types from DrillHiveTable

to HiveToRelDataTypeConverter

4. Removed throwing of UnsupportedOperationException from HiveStoragePlugin

5. Added TestHiveViewsSupport and authorization tests

6. Added closeSilently() method to AutoCloseables

closes #1559

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DRILL-6762: Fix dynamic UDFs versioning issue

1. Added UndefinedVersionDelegatingStore to serve as versioned wrapper for those stores that do not support versioning.

2. Aligned remote and local function registries version type. Type will be represented as int since ZK version is returned as int.

3. Added NOT_AVAILABLE and UNDEFINED versions to DataChangeVersion holder to indicate proper registry state.

4. Added additional trace logging.

5. Minor refactoring and clean up.

closes #1484

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DRILL-6702: Disable CPU Reporting for non-HotSpot JDKs

When running Drill on the IBM JDK (J9), the webUI throws an ClassCastException :

Caused by: java.lang.ClassCastException: com.ibm.lang.management.ExtendedOperatingSystem incompatible with com.sun.management.OperatingSystemMXBean

This PR simply disables that, since Drill should ideally be recompiled with these alternative JDKs.

DRILL-6724: Dump operator context to logs when error occurs during query execution

closes #1455

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DRILL-6422: Replace guava imports with shaded ones

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DRILL-6349: Drill JDBC driver fails on Java 1.9+ with NoClassDefFoundError: sun/misc/VM

closes #1446

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DRILL-6492: Ensure schema / workspace case insensitivity in Drill

1. StoragePluginsRegistryImpl was updated:

a. for backward compatibility at init to convert all existing storage plugins names to lower case, in case of duplicates, to log warning and skip the duplicate.

b. to wrap persistent plugins registry into case insensitive store wrapper (CaseInsensitivePersistentStore) to ensure all given keys are converted into lower case when performing insert, update, delete, search operations.

c. to load system storage plugins dynamically by @SystemStorage annotation.

2. StoragePlugins class was updated to stored storage plugins configs by name in case insensitive map.

3. SchemaUtilities.searchSchemaTree method was updated to convert all schema names into lower case to ensure that are they are matched case insensitively (all schemas are stored in Drill in lower case).

4. FileSystemConfig was updated to store workspaces by name in case insensitive hash map.

5. All plugins schema factories are now extend AbstractSchemaFactory to ensure that given schema name is converted to lower case.

6. New method areTableNamesAreCaseInsensitive was added to AbstractSchema to indicate if schema tables names are case insensitive. By default, false. Schema implementation is responsible for table names case insensitive search in case it supports one. Currently, information_schema, sys and hive do so.

7. System storage plugins (information_schema, sys) were refactored to ensure their schema, table names are case insensitive, also the annotation @SystemPlugin and additional constructor were added to allow dynamically load system plugins at storage plugin registry during init phase.

8. MetadataProvider was updated to concert all schema filter conditions into lower case to ensure schema would be matched case insensitively.

9. ShowSchemasHandler, ShowTablesHandler, DescribeTableHandler were updated to ensure schema / tables names (this depends if schema supports case insensitive table names) would be found case insensitively.

git closes #1439

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DRILL-6656: Disallow extra semicolons and multiple statements on the same line.

closes #1415

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[maven-release-plugin] prepare release drill-1.14.0

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[maven-release-plugin] prepare for next development iteration

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[maven-release-plugin] prepare release drill-1.14.0

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DRILL-6494: Drill Plugins Handler

- Storage Plugins Handler service is used op the Drill start-up stage and it updates storage plugins configs from

storage-plugins-override.conf file. If plugins configs are present in the persistence store - they are updated,

otherwise bootstrap plugins are updated and the result configs are loaded to persistence store. If the enabled

status is absent in the storage-plugins-override.conf file, the last plugin config enabled status persists.

- 'drill.exec.storage.action_on_plugins_override_file' Boot option is added. This is the action, which should be

performed on the storage-plugins-override.conf file after successful updating storage plugins configs.

Possible values are: "none" (default), "rename" and "remove".

- The "NULL" issue with updating Hive plugin config by REST is solved. But clients are still being instantiated for disabled

plugins - DRILL-6412.

- "org.honton.chas.hocon:jackson-dataformat-hocon" library is added for the proper deserializing HOCON conf file

- additional refactoring: "com.typesafe:config" and "org.apache.commons:commons-lang3" are placed into DependencyManagement

block with proper versions; correct properties for metrics in "drill-override-example.conf" are specified

closes #1345

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    • +87
    ./src/main/java/org/apache/drill/exec/util/ActionOnFile.java
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DRILL-6578: Handle query cancellation in Parquet reader

closes #1360

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DRILL-6468: CatastrophicFailures should not do a graceful shutdown of drill when terminating the JVM.

closes #1306

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DRILL-6438: Remove excess logging form the tests. - Removed usages of System.out and System.err from the test and replaced with loggers

closes #1284

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DRILL-6421: Refactor DecimalUtility and CoreDecimalUtility classes

closes #1267

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