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href="/docs/configuring-resources-for-a-shared-drillbit/">Configuring Resources
for a Shared Drillbit</a></li>
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Impersonation</a></li>
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Authentication</a></li>
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href="/docs/drill-default-input-format/">Drill Default Input Format</a></li>
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href="/docs/rdbms-storage-plugin/">RDBMS Storage Plugin</a></li>
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+ <li class="toctree-l2"><a class="reference internal"
href="/docs/mapr-db-format/">MapR-DB Format</a></li>
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+ <li class="toctree-l2"><a class="reference internal"
href="/docs/s3-storage-plugin/">S3 Storage Plugin</a></li>
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+
+ </ul>
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+
+ <li class="toctree-l1"><a href="javascript: void(0);">ODBC/JDBC
Interfaces</a></li>
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+ <li class="toctree-l2"><a class="reference internal"
href="/docs/interfaces-introduction/">Interfaces Introduction</a></li>
+
+
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+ <li class="toctree-l2"><a class="reference internal"
href="/docs/using-the-jdbc-driver/">Using the JDBC Driver</a></li>
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+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/using-jdbc-with-squirrel-on-windows/">Using JDBC with SQuirreL on
Windows</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Installing
the ODBC Driver</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/installing-the-driver-on-linux/">Installing the Driver on
Linux</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/installing-the-driver-on-mac-os-x/">Installing the Driver on Mac OS
X</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/installing-the-driver-on-windows/">Installing the Driver on
Windows</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript:
void(0);">Configuring ODBC</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/odbc-configuration-reference/">ODBC Configuration Reference</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/configuring-odbc-on-linux/">Configuring ODBC on Linux</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/configuring-odbc-on-mac-os-x/">Configuring ODBC on Mac OS X</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/configuring-odbc-on-windows/">Configuring ODBC on Windows</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/testing-the-odbc-connection/">Testing the ODBC Connection</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Using
Drill Explorer</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/drill-explorer-introduction/">Drill Explorer Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/connecting-drill-explorer-to-data/">Connecting Drill Explorer to
Data</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/browsing-data-and-defining-views/">Browsing Data and Defining
Views</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Using
Drill with BI Tools</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-drill-with-bi-tools-introduction/">Using Drill with BI Tools
Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/tableau-examples/">Tableau Examples</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-microstrategy-analytics-with-apache-drill/">Using
MicroStrategy Analytics with Apache Drill</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-tibco-spotfire-desktop-with-drill/">Using Tibco Spotfire
Desktop with Drill</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/configuring-tibco-spotfire-server-with-drill/">Configuring Tibco
Spotfire Server with Drill</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-qlik-sense-with-drill/">Using Qlik Sense with Drill</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-apache-drill-with-tableau-9-desktop/">Using Apache Drill with
Tableau 9 Desktop</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-apache-drill-with-tableau-9-server/">Using Apache Drill with
Tableau 9 Server</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-information-builders-webfocus-with-apache-drill/">Using
Information Buildersâ WebFOCUS with Apache Drill</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/configuring-jreport-with-drill/">Configuring JReport with
Drill</a></li>
+
+ </ul>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">Query
Data</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/query-data-introduction/">Query Data Introduction</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Querying a
File System</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-a-file-system-introduction/">Querying a File System
Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-avro-files/">Querying Avro Files</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-json-files/">Querying JSON Files</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-parquet-files/">Querying Parquet Files</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-plain-text-files/">Querying Plain Text Files</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-directories/">Querying Directories</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-sequence-files/">Querying Sequence Files</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/querying-hbase/">Querying HBase</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Querying
Complex Data</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/querying-complex-data-introduction/">Querying Complex Data
Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/sample-data-donuts/">Sample Data: Donuts</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/selecting-flat-data/">Selecting Flat Data</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/using-sql-functions-clauses-and-joins/">Using SQL Functions,
Clauses, and Joins</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/selecting-nested-data-for-a-column/">Selecting Nested Data for a
Column</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/selecting-multiple-columns-within-nested-data/">Selecting Multiple
Columns Within Nested Data</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/querying-hive/">Querying Hive</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/querying-the-information-schema/">Querying the INFORMATION
SCHEMA</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/querying-system-tables/">Querying System Tables</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/monitoring-and-canceling-queries-in-the-drill-web-console/">Monitoring
and Canceling Queries in the Drill Web Console</a></li>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">Performance
Tuning</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/performance-tuning-introduction/">Performance Tuning
Introduction</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Partition
Pruning</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/partition-pruning-introduction/">Partition Pruning
Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/how-to-partition-data/">How to Partition Data</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/asynchronous-parquet-reader/">Asynchronous Parquet Reader</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/optimizing-parquet-metadata-reading/">Optimizing Parquet Metadata
Reading</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/parquet-filter-pushdown/">Parquet Filter Pushdown</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/hive-metadata-caching/">Hive Metadata Caching</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/choosing-a-storage-format/">Choosing a Storage Format</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Query
Plans and Tuning</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/query-plans-and-tuning-introduction/">Query Plans and Tuning
Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/join-planning-guidelines/">Join Planning Guidelines</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/guidelines-for-optimizing-aggregation/">Guidelines for Optimizing
Aggregation</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/modifying-query-planning-options/">Modifying Query Planning
Options</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/sort-based-and-hash-based-memory-constrained-operators/">Sort-Based
and Hash-Based Memory-Constrained Operators</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/enabling-query-queuing/">Enabling Query Queuing</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/controlling-parallelization-to-balance-performance-with-multi-tenancy/">Controlling
Parallelization to Balance Performance with Multi-Tenancy</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript:
void(0);">Identifying Performance Issues</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/query-plans/">Query Plans</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/query-profiles/">Query Profiles</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript:
void(0);">Performance Tuning Reference</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/query-profile-column-descriptions/">Query Profile Column
Descriptions</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/physical-operators/">Physical Operators</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/monitoring-metrics/">Monitoring Metrics</a></li>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">Log and
Debug</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/log-and-debug-introduction/">Log and Debug Introduction</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/error-messages/">Error Messages</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/modify-logback-xml/">Modify logback.xml</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/review-the-java-stack-trace/">Review the Java Stack Trace</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/query-audit-logging/">Query Audit Logging</a></li>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">SQL
Reference</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/sql-reference-introduction/">SQL Reference Introduction</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Data
Types</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/supported-data-types/">Supported Data Types</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/date-time-and-timestamp/">Date, Time, and Timestamp</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/handling-different-data-types/">Handling Different Data
Types</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/lexical-structure/">Lexical Structure</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/operators/">Operators</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">SQL
Functions</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/about-sql-function-examples/">About SQL Function Examples</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/math-and-trig/">Math and Trig</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/data-type-conversion/">Data Type Conversion</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/date-time-functions-and-arithmetic/">Date/Time Functions and
Arithmetic</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/string-manipulation/">String Manipulation</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/aggregate-and-aggregate-statistical/">Aggregate and Aggregate
Statistical</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/functions-for-handling-nulls/">Functions for Handling Nulls</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">SQL Window
Functions</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/sql-window-functions-introduction/">SQL Window Functions
Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/aggregate-window-functions/">Aggregate Window Functions</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/ranking-window-functions/">Ranking Window Functions</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/value-window-functions/">Value Window Functions</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/sql-window-functions-examples/">SQL Window Functions
Examples</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Nested
Data Functions</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/nested-data-limitations/">Nested Data Limitations</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/flatten/">FLATTEN</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/kvgen/">KVGEN</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/repeated-count/">REPEATED_COUNT</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/repeated-contains/">REPEATED_CONTAINS</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/query-directory-functions/">Query Directory Functions</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">SQL
Commands</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/supported-sql-commands/">Supported SQL Commands</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/set/">SET</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/reset/">RESET</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/alter-system/">ALTER SYSTEM</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/create-table-as-ctas/">CREATE TABLE AS (CTAS)</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/create-function-using-jar/">CREATE FUNCTION USING JAR</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/partition-by-clause/">PARTITION BY Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/create-view/">CREATE VIEW</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/describe/">DESCRIBE</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/drop-function-using-jar/">DROP FUNCTION USING JAR</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/drop-table/">DROP TABLE</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/drop-view/">DROP VIEW</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/explain/">EXPLAIN</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/select/">SELECT</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/select-list/">SELECT List</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/from-clause/">FROM Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/group-by-clause/">GROUP BY Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/having-clause/">HAVING Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/limit-clause/">LIMIT Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/offset-clause/">OFFSET Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/order-by-clause/">ORDER BY Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/union-set-operator/">UNION Set Operator</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/where-clause/">WHERE Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/with-clause/">WITH Clause</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/show-databases-and-show-schemas/">SHOW DATABASES and SHOW
SCHEMAS</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/show-files/">SHOW FILES</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/show-tables/">SHOW TABLES</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/use/">USE</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">SQL
Conditional Expressions</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/case/">CASE</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/reserved-keywords/">Reserved Keywords</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/sql-extensions/">SQL Extensions</a></li>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">Data Sources
and File Formats</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/data-sources-and-file-formats-introduction/">Data Sources and File
Formats Introduction</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/hive-to-drill-data-type-mapping/">Hive-to-Drill Data Type
Mapping</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/deploying-and-using-a-hive-udf/">Deploying and Using a Hive
UDF</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/parquet-format/">Parquet Format</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/json-data-model/">JSON Data Model</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/text-files-csv-tsv-psv/">Text Files: CSV, TSV, PSV</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/sequence-files/">Sequence Files</a></li>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">Develop Custom
Functions</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/develop-custom-functions-introduction/">Develop Custom Functions
Introduction</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/developing-a-simple-function/">Developing a Simple Function</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/tutorial-develop-a-simple-function/">Tutorial: Develop a Simple
Function</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/developing-an-aggregate-function/">Developing an Aggregate
Function</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Adding
Custom Functions to Drill</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/adding-custom-functions-to-drill-introduction/">Adding Custom
Functions to Drill Introduction</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/manually-adding-custom-functions-to-drill/">Manually Adding Custom
Functions to Drill</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/dynamic-udfs/">Dynamic UDFs</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/using-custom-functions-in-queries/">Using Custom Functions in
Queries</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/custom-function-interfaces/">Custom Function Interfaces</a></li>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a class="reference internal"
href="/docs/troubleshooting/">Troubleshooting</a></li>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">Developer
Information</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/rest-api/">REST API</a></li>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Develop
Drill</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/compiling-drill-from-source/">Compiling Drill from Source</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Contribute
to Drill</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/apache-drill-contribution-guidelines/">Apache Drill Contribution
Guidelines</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/apache-drill-contribution-ideas/">Apache Drill Contribution
Ideas</a></li>
+
+ </ul>
+
+
+
+ <li class="toctree-l2"><a href="javascript: void(0);">Design
Docs</a></li>
+ <ul style="display: none">
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/drill-plan-syntax/">Drill Plan Syntax</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/rpc-overview/">RPC Overview</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/query-stages/">Query Stages</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/useful-research/">Useful Research</a></li>
+
+ <li class="toctree-l3"><a class="reference internal"
href="/docs/value-vectors/">Value Vectors</a></li>
+
+ </ul>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1 current_section "><a href="javascript:
void(0);">Release Notes</a></li>
+ <ul class="current_section">
+
+
+ <li class="toctree-l2 current"><a class="reference internal"
href="/docs/apache-drill-1-9-0-release-notes/">Apache Drill 1.9.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-8-0-release-notes/">Apache Drill 1.8.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-7-0-release-notes/">Apache Drill 1.7.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-6-0-release-notes/">Apache Drill 1.6.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-5-0-release-notes/">Apache Drill 1.5.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-4-0-release-notes/">Apache Drill 1.4.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-3-0-release-notes/">Apache Drill 1.3.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-2-0-release-notes/">Apache Drill 1.2.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-1-0-release-notes/">Apache Drill 1.1.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-1-0-0-release-notes/">Apache Drill 1.0.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-0-9-0-release-notes/">Apache Drill 0.9.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-0-8-0-release-notes/">Apache Drill 0.8.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-0-7-0-release-notes/">Apache Drill 0.7.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-0-6-0-release-notes/">Apache Drill 0.6.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-m1-release-notes-apache-drill-alpha/">Apache Drill M1
Release Notes (Apache Drill Alpha)</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-m1-release-notes-apache-drill-alpha/">Apache Drill M1
Release Notes (Apache Drill Alpha)</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-0-5-0-release-notes/">Apache Drill 0.5.0 Release
Notes</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/apache-drill-0-4-0-release-notes/">Apache Drill 0.4.0 Release
Notes</a></li>
+
+
+ </ul>
+
+
+
+ <li class="toctree-l1"><a href="javascript: void(0);">Sample
Datasets</a></li>
+ <ul style="display: none">
+
+
+ <li class="toctree-l2"><a class="reference internal"
href="/docs/aol-search/">AOL Search</a></li>
+
+
+
+ <li class="toctree-l2"><a class="reference internal"
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+ <li><a href="/docs/release-notes/">Release Notes</a></li>
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+ <li>Apache Drill 1.9.0 Release Notes</li>
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+ <div class="main-content">
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+ <h1>Apache Drill 1.9.0 Release Notes</h1>
+
+ </div>
+
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+
+ <link href="/css/docpage.css" rel="stylesheet" type="text/css">
+
+ <div class="int_text" align="left">
+
+ <p><strong>Release date:</strong> November 29, 2016</p>
+
+<p>Today, we're happy to announce the availability of Drill 1.9.0. You can
download it <a href="https://drill.apache.org/download/";>here</a>.</p>
+
+<h2 id="new-features">New Features</h2>
+
+<p>This release of Drill provides the following new features: </p>
+
+<ul>
+<li>Asynchronous Parquet reader</li>
+<li>Parquet filter pushdown<br></li>
+<li>Dynamic UDF support<br></li>
+<li>HTTPD format plugin<br></li>
+</ul>
+
+<p>The following sections list additional bug fixes and improvements: </p>
+
+<h2> Sub-task
+</h2>
+
+<ul>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4420'>DRILL-4420</a>] -
C client and ODBC driver should move to using the new metadata methods
provided by DRILL-4385
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4452'>DRILL-4452</a>] -
Update avatica version for Drill jdbc
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4560'>DRILL-4560</a>] -
ZKClusterCoordinator does not call DrillbitStatusListener.drillbitRegistered
for new bits
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4968'>DRILL-4968</a>] -
Add column size information to ColumnMetadata
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4969'>DRILL-4969</a>] -
Basic implementation for displaySize
+</li>
+</ul>
+
+
+<h2> Bug
+</h2>
+
+<ul>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-1996'>DRILL-1996</a>] -
C++ Client: Make Cancel API Public
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-3898'>DRILL-3898</a>] -
No space error during external sort does not cancel the query
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4203'>DRILL-4203</a>] -
Parquet File : Date is stored wrongly
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4369'>DRILL-4369</a>] -
Database driver fails to report any major or minor version information
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4370'>DRILL-4370</a>] -
DatabaseMetadata returning <Properties resource
apache-drill-jdbc.properties not loaded>
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4525'>DRILL-4525</a>] -
Query with BETWEEN clause on Date and Timestamp values fails with Validation
Error
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4542'>DRILL-4542</a>] -
if external sort fails to spill to disk, memory is leaked and wrong error
message is displayed
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4618'>DRILL-4618</a>] -
random numbers generator function broken
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4763'>DRILL-4763</a>] -
Parquet file with DATE logical type produces wrong results for simple SELECT
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4767'>DRILL-4767</a>] -
Parquet reader throw IllegalArgumentException for int32 type with GZIP
compression
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4769'>DRILL-4769</a>] -
forman spins query int32 data with snappy compression
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4770'>DRILL-4770</a>] -
ParquetRecordReader throws NPE querying a single int64 column file
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4823'>DRILL-4823</a>] -
Fix OOM while trying to prune partitions with reasonable data size
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4824'>DRILL-4824</a>] -
JSON with complex nested data produces incorrect output with missing fields
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4826'>DRILL-4826</a>] -
Query against INFORMATION_SCHEMA.TABLES degrades as the number of views
increases
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4862'>DRILL-4862</a>] -
wrong results - use of convert_from(binary_string(key),'UTF8') in
filter results in wrong results
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4870'>DRILL-4870</a>] -
drill-config.sh sets JAVA_HOME incorrectly for the Mac
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4874'>DRILL-4874</a>] -
"No UserGroupInformation while generating ORC splits" - hive known
issue in 1.2.0-mapr-1607 release.
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4877'>DRILL-4877</a>] -
max(dir0), max(dir1) query against parquet data slower by 2X
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4880'>DRILL-4880</a>] -
Support JDBC driver registration using ServiceLoader
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4884'>DRILL-4884</a>] -
Fix IOB exception in limit n query when n is beyond 65535.
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4888'>DRILL-4888</a>] -
putIfAbsent for ZK stores is not atomic
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4894'>DRILL-4894</a>] -
Fix unit test failure in 'storage-hive/core' module
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4905'>DRILL-4905</a>] -
Push down the LIMIT to the parquet reader scan to limit the numbers of
records read
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4906'>DRILL-4906</a>] -
CASE Expression with constant generates class exception
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4911'>DRILL-4911</a>] -
SimpleParallelizer should avoid plan serialization for logging purpose when
debug logging is not enabled.
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4921'>DRILL-4921</a>] -
Scripts drill_config.sh, drillbit.sh, and drill-embedded fail when accessed
via a symbolic link
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4925'>DRILL-4925</a>] -
Add types filter to getTables metadata API
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4930'>DRILL-4930</a>] -
Metadata results are not sorted
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4934'>DRILL-4934</a>] -
ServiceEngine does not use property useIP for DrillbitStartup
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4941'>DRILL-4941</a>] -
UnsupportedOperationException : CASE WHEN true or null then 1 else 0 end
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4945'>DRILL-4945</a>] -
Missing subtype information in metadata returned by prepared statement
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4950'>DRILL-4950</a>] -
Consume Spurious Empty Batches in JDBC
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4954'>DRILL-4954</a>] -
allTextMode in the MapRDB plugin always return nulls
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4964'>DRILL-4964</a>] -
Drill fails to connect to hive metastore after hive metastore is restarted
unless drillbits are restarted also
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4972'>DRILL-4972</a>] -
Drillbit shuts down immediately after starting if embedded web server is
disabled
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4974'>DRILL-4974</a>] -
NPE in FindPartitionConditions.analyzeCall() for 'holistic'
expressions
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4989'>DRILL-4989</a>] -
Fix TestParquetWriter.testImpalaParquetBinaryAsTimeStamp_DictChange
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4990'>DRILL-4990</a>] -
Use new HDFS API access instead of listStatus to check if users have
permissions to access workspace.
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4993'>DRILL-4993</a>] -
Documentation: Wrong output displayed for convert_from() with a map
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-5004'>DRILL-5004</a>] -
Parquet date correction gives null pointer exception if there is no createdBy
entry in the metadata
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-5007'>DRILL-5007</a>] -
Dynamic UDF lazy-init does not work correctly in multi-node cluster
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-5009'>DRILL-5009</a>] -
Query with a simple join fails on Hive generated parquet
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-5047'>DRILL-5047</a>] -
When session option is string, query profile is displayed incorrectly on Web
UI
+</li>
+</ul>
+
+
+<h2> Improvement
+</h2>
+
+<ul>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-1950'>DRILL-1950</a>] -
Implement filter pushdown for Parquet
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-3178'>DRILL-3178</a>] -
csv reader should allow newlines inside quotes
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4653'>DRILL-4653</a>] -
Malformed JSON should not stop the entire query from progressing
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4674'>DRILL-4674</a>] -
Allow casting to boolean the same literals as in Postgre
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4752'>DRILL-4752</a>] -
Remove submit_plan script from Drill distribution
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4771'>DRILL-4771</a>] -
Drill should avoid doing the same join twice if count(distinct) exists
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4792'>DRILL-4792</a>] -
Include session options used for a query as part of the profile
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4800'>DRILL-4800</a>] -
Improve parquet reader performance
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4927'>DRILL-4927</a>] -
Add support for Null Equality Joins
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4967'>DRILL-4967</a>] -
Adding template_name to source code generated using freemarker template
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4986'>DRILL-4986</a>] -
Allow users to customize the Drill log file name
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4987'>DRILL-4987</a>] -
Use ImpersonationUtil in RemoteFunctionRegistry
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-5031'>DRILL-5031</a>] -
Documentation for HTTPD Parser
+</li>
+</ul>
+
+
+<h2> New Feature
+</h2>
+
+<ul>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-1268'>DRILL-1268</a>] -
C++ Client. Write Unit Test for Drill Client
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-3423'>DRILL-3423</a>] -
Add New HTTPD format plugin
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4714'>DRILL-4714</a>] -
Add metadata and prepared statement APIs to DrillClient<->Drillbit
interface
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4726'>DRILL-4726</a>] -
Dynamic UDFs support
+</li>
+</ul>
+
+
+<h2> Task
+</h2>
+
+<ul>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4853'>DRILL-4853</a>] -
Update C++ protobuf source files
+</li>
+<li>[<a
href='https://issues.apache.org/jira/browse/DRILL-4886'>DRILL-4886</a>] -
Merge maprdb format plugin source code
+</li>
+</ul>
+
+
+
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