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SQL</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/lession-3-run-queries-on-complex-data-types/">Lession 3: Run Queries on Complex Data Types</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/summary/">Summary</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/analyzing-highly-dynamic-datasets/">Analyzing Highly Dynamic Datasets</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">Install Drill</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/install-drill-introduction/">Install Drill Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/deploying-drill-in-a-cluster/">Deploying Drill in a Cluster</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Installing Drill in Embedded Mode</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/embedded-mode-prerequisites/">Embedded Mode Prerequisites</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-linux/">Installing Drill on Linux</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-mac-os-x/">Installing Drill on Mac OS X</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-windows/">Installing Drill on Windows</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/installing-drill-in-distributed-mode/">Installing Drill in Distributed Mode</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">Connect a Data Source</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/connect-a-data-source-introduction/">Connect a Data Source Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/storage-plugin-registration/">Storage Plugin Registration</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Storage Plugin Configuration</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/plugin-configuration-introduction/">Plugin Configuration Introduction</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/workspaces/">Workspaces</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/file-system-storage-plugin/">File System Storage Plugin</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/hbase-storage-plugin/">HBase Storage Plugin</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/hive-storage-plugin/">Hive Storage Plugin</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/drill-default-input-format/">Drill Default Input Format</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/mongodb-plugin-for-apache-drill/">MongoDB Plugin for Apache Drill</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/mapr-db-format/">MapR-DB Format</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">ODBC/JDBC Interfaces</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/interfaces-introduction/">Interfaces Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/using-jdbc/">Using JDBC</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Using ODBC on Linux and Mac OS X</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/odbc-on-linux-and-mac-introduction/">ODBC on Linux and Mac Introduction</a></li> + + <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/configuring-connections-on-linux-and-mac-os-x/">Configuring Connections on Linux and Mac OS X</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/driver-configuration-options/">Driver Configuration Options</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/using-a-connection-string/">Using a Connection String</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/advanced-properties/">Advanced Properties</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 ODBC on Windows</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-the-driver-on-windows/">Installing the Driver on Windows</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-connections-on-windows/">Configuring Connections on Windows</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/connecting-to-odbc-data-sources/">Connecting to ODBC Data Sources</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-drill-explorer-on-windows/">Using Drill Explorer on Windows</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/using-microstrategy-analytics-with-drill/">Using MicroStrategy Analytics with Drill</a></li> + + + </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-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> + + </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> + + + </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);">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/alter-session-command/">ALTER SESSION Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/alter-system-command/">ALTER SYSTEM Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/create-table-as-ctas-command/">CREATE TABLE AS (CTAS) command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/create-view-command/">CREATE VIEW command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/describe-command/">DESCRIBE Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/explain-commands/">EXPLAIN commands</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/select-statements/">SELECT Statements</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/show-databases-and-show-schemas-command/">SHOW DATABASES AND SHOW SCHEMAS Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/show-files-command/">SHOW FILES Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/show-tables-command/">SHOW TABLES Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/use-command/">USE Command</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> + + + </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/develop-a-simple-function/">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 class="reference internal" href="/docs/adding-custom-functions-to-drill/">Adding Custom Functions to Drill</a></li> + + + + <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 current_section "><a href="javascript: void(0);">Manage Drill</a></li> + <ul class="current_section"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/manage-drill-introduction/">Manage Drill Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/configuring-drill-in-a-dedicated-cluster/">Configuring Drill in a Dedicated Cluster</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Configuring a Multitenant Cluster</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-a-multitenant-cluster-introduction/">Configuring a Multitenant Cluster Introduction</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-multitenant-resources/">Configuring Multitenant Resources</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-resources-for-a-shared-drillbit/">Configuring Resources for a Shared Drillbit</a></li> + + </ul> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Configuration Options</a></li> + <ul style=""> + + <li class="toctree-l3 current"><a class="reference internal" href="/docs/configuration-options-introduction/">Configuration Options Introduction</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/start-up-options/">Start-Up Options</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/planning-and-execution-options/">Planning and Execution Options</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/persistent-configuration-storage/">Persistent Configuration Storage</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/starting-stopping-drill/">Starting/Stopping Drill</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/ports-used-by-drill/">Ports Used by Drill</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/partition-pruning/">Partition Pruning</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/monitoring-and-canceling-queries-in-the-drill-web-ui/">Monitoring and Canceling Queries in the Drill Web UI</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">Developer Information</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a href="javascript: void(0);">Develop Drill</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a 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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"><a href="javascript: void(0);">Release Notes</a></li> + <ul style="display: none"> + + + <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> + + + + <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-0-6-0-release-notes/">Apache Drill 0.6.0 Release Notes</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/apache-drill-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-0-8-0-release-notes/">Apache Drill 0.8.0 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" href="/docs/enron-emails/">Enron Emails</a></li> + + + + <li class="toctree-l2"><a class="reference 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href="/docs/manage-drill/">Manage Drill</a></li> + + <li><a href="/docs/configuration-options/">Configuration Options</a></li> + + <li>Configuration Options Introduction</li> +</nav> + + <div class="main-content-wrapper"> + <div class="main-content"> + + + <a class="edit-link" href="https://github.com/apache/drill/blob/gh-pages/_docs/manage-drill/configuration-options/010-configuration-options-introduction.md"; target="_blank"><i class="fa fa-pencil-square-o"></i></a> + + + <div class="int_title"> + <h1>Configuration Options Introduction</h1> + + </div> + + <link href="/css/docpage.css" rel="stylesheet" type="text/css"> + + <div class="int_text" align="left"> + + <p>Drill provides many configuration options that you can enable, disable, or +modify. Modifying certain configuration options can impact Drillâs +performance. Many of Drill's configuration options reside in the <code>drill- +env.sh</code> and <code>drill-override.conf</code> files. Drill stores these files in the +<code>/conf</code> directory. Drill sources<code>/etc/drill/conf</code> if it exists. Otherwise, +Drill sources the local <code><drill_installation_directory>/conf</code> directory.</p> + +<p>The sys.options table in Drill contains information about boot (start-up) and system options listed in the tables on this page. </p> + +<h2 id="boot-options">Boot Options</h2> + +<p>The section, <a href="/docs/start-up-options">"Start-up Options"</a>, covers how to configure and view these options. </p> + +<table> + <tr> + <th>Name</th> + <th>Default</th> + <th>Comments</th> + </tr> + <tr> + <td>drill.exec.buffer.impl</td> + <td>"org.apache.drill.exec.work.batch.UnlimitedRawBatchBuffer"</td> + <td></td> + </tr> + <tr> + <td>drill.exec.buffer.size</td> + <td>6</td> + <td>Available memory in terms of record batches to hold data downstream of an operation. Increase this value to increase query speed.</td> + </tr> + <tr> + <td>drill.exec.compile.debug</td> + <td>TRUE</td> + <td></td> + </tr> + <tr> + <td>drill.exec.http.enabled</td> + <td>TRUE</td> + <td></td> + </tr> + <tr> + <td>drill.exec.operator.packages</td> + <td>"org.apache.drill.exec.physical.config"</td> + <td></td> + </tr> + <tr> + <td>drill.exec.sort.external.batch.size</td> + <td>4000</td> + <td></td> + </tr> + <tr> + <td>drill.exec.sort.external.spill.directories</td> + <td>"/tmp/drill/spill"</td> + <td>Determines which directory to use for spooling</td> + </tr> + <tr> + <td>drill.exec.sort.external.spill.group.size</td> + <td>100</td> + <td></td> + </tr> + <tr> + <td>drill.exec.storage.file.text.batch.size</td> + <td>4000</td> + <td></td> + </tr> + <tr> + <td>drill.exec.storage.packages</td> + <td>"org.apache.drill.exec.store" "org.apache.drill.exec.store.mock"</td> + <td>Ignore or include this module, including supplementary configuraiton information when scanning the class path scanning. This file is in [HOCON format](https://github.com/typesafehub/config/blob/master/HOCON.md).</td> + </tr> + <tr> + <td>drill.exec.sys.store.provider.class</td> + <td>ZooKeeper: "org.apache.drill.exec.store.sys.zk.ZkPStoreProvider"</td> + <td>The Pstore (Persistent Configuration Storage) provider to use. The Pstore holds configuration and profile data.</td> + </tr> + <tr> + <td>drill.exec.zk.connect</td> + <td>"localhost:2181"</td> + <td>The ZooKeeper quorum that Drill uses to connect to data sources. Configure on each Drillbit node.</td> + </tr> + <tr> + <td>drill.exec.zk.refresh</td> + <td>500</td> + <td></td> + </tr> + <tr> + <td>file.separator</td> + <td>"/"</td> + <td></td> + </tr> + <tr> + <td>java.specification.version</td> + <td>1.7</td> + <td></td> + </tr> + <tr> + <td>java.vm.name</td> + <td>"Java HotSpot(TM) 64-Bit Server VM"</td> + <td></td> + </tr> + <tr> + <td>java.vm.specification.version</td> + <td>1.7</td> + <td></td> + </tr> + <tr> + <td>log.path</td> + <td>"/log/sqlline.log"</td> + <td></td> + </tr> + <tr> + <td>sun.boot.library.path</td> + <td>/Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home/jre/lib</td> + <td></td> + </tr> + <tr> + <td>sun.java.command</td> + <td>"sqlline.SqlLine -d org.apache.drill.jdbc.Driver --maxWidth=10000 -u jdbc:drill:zk=local"</td> + <td></td> + </tr> + <tr> + <td>sun.os.patch.level</td> + <td>unknown</td> + <td></td> + </tr> + <tr> + <td>user</td> + <td>""</td> + <td></td> + </tr> +</table> + +<h2 id="system-options">System Options</h2> + +<p>The sys.options table lists the following options that you can set at the session or system level as described in the section, <a href="/docs/planning-and-execution-options">"Planning and Execution Options"</a> </p> + +<table> + <tr> + <th>Name</th> + <th>Default</th> + <th>Comments</th> + </tr> + <tr> + <td>drill.exec.functions.cast_empty_string_to_null</td> + <td>FALSE</td> + <td></td> + </tr> + <tr> + <td>drill.exec.storage.file.partition.column.label</td> + <td>dir</td> + <td>Accepts a string input.</td> + </tr> + <tr> + <td>exec.errors.verbose</td> + <td>FALSE</td> + <td>Toggles verbose output of executable error messages</td> + </tr> + <tr> + <td>exec.java_compiler</td> + <td>DEFAULT</td> + <td>Switches between DEFAULT, JDK, and JANINO mode for the current session. Uses Janino by default for generated source code of less than exec.java_compiler_janino_maxsize; otherwise, switches to the JDK compiler.</td> + </tr> + <tr> + <td>exec.java_compiler_debug</td> + <td>TRUE</td> + <td>Toggles the output of debug-level compiler error messages in runtime generated code.</td> + </tr> + <tr> + <td>exec.java_compiler_janino_maxsize</td> + <td>262144</td> + <td>See the exec.java_compiler option comment. Accepts inputs of type LONG.</td> + </tr> + <tr> + <td>exec.max_hash_table_size</td> + <td>1073741824</td> + <td>Ending size for hash tables. Range: 0 - 1073741824</td> + </tr> + <tr> + <td>exec.min_hash_table_size</td> + <td>65536</td> + <td>Starting size for hash tables. Increase according to available memory to improve performance. Range: 0 - 1073741824</td> + </tr> + <tr> + <td>exec.queue.enable</td> + <td>FALSE</td> + <td>Changes the state of query queues to control the number of queries that run simultaneously.</td> + </tr> + <tr> + <td>exec.queue.large</td> + <td>10</td> + <td>Range: 0-1000</td> + </tr> + <tr> + <td>exec.queue.small</td> + <td>100</td> + <td>Range: 0-1001</td> + </tr> + <tr> + <td>exec.queue.threshold</td> + <td>30000000</td> + <td>Range: 0-9223372036854775807</td> + </tr> + <tr> + <td>exec.queue.timeout_millis</td> + <td>300000</td> + <td>Range: 0-9223372036854775807</td> + </tr> + <tr> + <td>planner.add_producer_consumer</td> + <td>FALSE</td> + <td>Increase prefetching of data from disk. Disable for in-memory reads.</td> + </tr> + <tr> + <td>planner.affinity_factor</td> + <td>1.2</td> + <td>Accepts inputs of type DOUBLE.</td> + </tr> + <tr> + <td>planner.broadcast_factor</td> + <td>1</td> + <td></td> + </tr> + <tr> + <td>planner.broadcast_threshold</td> + <td>10000000</td> + <td>Threshold in number of rows that triggers a broadcast join for a query if the right side of the join contains fewer rows than the threshold. Avoids broadcasting too many rows to join. Range: 0-2147483647</td> + </tr> + <tr> + <td>planner.disable_exchanges</td> + <td>FALSE</td> + <td>Toggles the state of hashing to a random exchange.</td> + </tr> + <tr> + <td>planner.enable_broadcast_join</td> + <td>TRUE</td> + <td>Changes the state of aggregation and join operators. Do not disable.</td> + </tr> + <tr> + <td>planner.enable_demux_exchange</td> + <td>FALSE</td> + <td>Toggles the state of hashing to a demulitplexed exchange.</td> + </tr> + <tr> + <td>planner.enable_hash_single_key</td> + <td>TRUE</td> + <td></td> + </tr> + <tr> + <td>planner.enable_hashagg</td> + <td>TRUE</td> + <td>Enable hash aggregation; otherwise, Drill does a sort-based aggregation. Does not write to disk. Enable is recommended.</td> + </tr> + <tr> + <td>planner.enable_hashjoin</td> + <td>TRUE</td> + <td>Enable the memory hungry hash join. Does not write to disk.</td> + </tr> + <tr> + <td>planner.enable_hashjoin_swap</td> + <td></td> + <td></td> + </tr> + <tr> + <td>planner.enable_mergejoin</td> + <td>TRUE</td> + <td>Sort-based operation. Writes to disk.</td> + </tr> + <tr> + <td>planner.enable_multiphase_agg</td> + <td>TRUE</td> + <td></td> + </tr> + <tr> + <td>planner.enable_mux_exchange</td> + <td>TRUE</td> + <td>Toggles the state of hashing to a multiplexed exchange.</td> + </tr> + <tr> + <td>planner.enable_streamagg</td> + <td>TRUE</td> + <td>Sort-based operation. Writes to disk.</td> + </tr> + <tr> + <td>planner.identifier_max_length</td> + <td>1024</td> + <td></td> + </tr> + <tr> + <td>planner.join.hash_join_swap_margin_factor</td> + <td>10</td> + <td></td> + </tr> + <tr> + <td>planner.join.row_count_estimate_factor</td> + <td>1</td> + <td></td> + </tr> + <tr> + <td>planner.memory.average_field_width</td> + <td>8</td> + <td></td> + </tr> + <tr> + <td>planner.memory.enable_memory_estimation</td> + <td>FALSE</td> + <td></td> + </tr> + <tr> + <td>planner.memory.hash_agg_table_factor</td> + <td>1.1</td> + <td></td> + </tr> + <tr> + <td>planner.memory.hash_join_table_factor</td> + <td>1.1</td> + <td></td> + </tr> + <tr> + <td>planner.memory.max_query_memory_per_node</td> + <td>2147483648</td> + <td></td> + </tr> + <tr> + <td>planner.memory.non_blocking_operators_memory</td> + <td>64</td> + <td>Range: 0-2048</td> + </tr> + <tr> + <td>planner.partitioner_sender_max_threads</td> + <td>8</td> + <td></td> + </tr> + <tr> + <td>planner.partitioner_sender_set_threads</td> + <td>-1</td> + <td></td> + </tr> + <tr> + <td>planner.partitioner_sender_threads_factor</td> + <td>1</td> + <td></td> + </tr> + <tr> + <td>planner.producer_consumer_queue_size</td> + <td>10</td> + <td>How much data to prefetch from disk (in record batches) out of band of query execution</td> + </tr> + <tr> + <td>planner.slice_target</td> + <td>100000</td> + <td>The number of records manipulated within a fragment before Drill parallelizes operations.</td> + </tr> + <tr> + <td>planner.width.max_per_node</td> + <td>3</td> + <td>The maximum degree of distribution of a query across cores and cluster nodes.</td> + </tr> + <tr> + <td>planner.width.max_per_query</td> + <td>1000</td> + <td>Same as max per node but applies to the query as executed by the entire cluster.</td> + </tr> + <tr> + <td>store.format</td> + <td>parquet</td> + <td>Output format for data written to tables with the CREATE TABLE AS (CTAS) command. Allowed values are parquet, json, or text. Allowed values: 0, -1, 1000000</td> + </tr> + <tr> + <td>store.json.all_text_mode</a></td> + <td>FALSE</td> + <td>Drill reads all data from the JSON files as VARCHAR. Prevents schema change errors.</td> + </tr> + <tr> + <td>store.mongo.all_text_mode</td> + <td>FALSE</td> + <td>Similar to store.json.all_text_mode for MongoDB.</td> + </tr> + <tr> + <td>store.parquet.block-size</a></td> + <td>536870912</td> + <td>Sets the size of a Parquet row group to the number of bytes less than or equal to the block size of MFS, HDFS, or the file system.</td> + </tr> + <tr> + <td>store.parquet.compression</td> + <td>snappy</td> + <td>Compression type for storing Parquet output. Allowed values: snappy, gzip, none</td> + </tr> + <tr> + <td>store.parquet.enable_dictionary_encoding</td> + <td>FALSE</td> + <td></td> + </tr> + <tr> + <td>store.parquet.use_new_reader</td> + <td>FALSE</td> + <td></td> + </tr> + <tr> + <td>window.enable*</td> + <td>FALSE</td> + <td></td> + </tr> +</table> + +<p>* Not supported in this release.</p> + + + + <div class="doc-nav"> + + <span class="previous-toc"><a href="/docs/configuration-options/">â Configuration Options</a></span><span class="next-toc"><a href="/docs/start-up-options/">Start-Up Options â</a></span> +</div> + + + </div> + </div> + </div> + + </div> + <p class="push"></p> +<div id="footer" class="mw"> +<div class="wrapper"> +Copyright © 2012-2014 The Apache Software Foundation, licensed under the Apache License, Version 2.0.<br> +Apache and the Apache feather logo are trademarks of The Apache Software Foundation. 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href="/docs/analyzing-the-yelp-academic-dataset/">Analyzing the Yelp Academic Dataset</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Learn Drill with the MapR Sandbox</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/about-the-mapr-sandbox/">About the MapR Sandbox</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-the-apache-drill-sandbox/">Installing the Apache Drill Sandbox</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/getting-to-know-the-drill-sandbox/">Getting to Know the Drill Sandbox</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/lession-1-learn-about-the-data-set/">Lession 1: Learn about the Data Set</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/lession-2-run-queries-with-ansi-sql/">Lession 2: Run Queries with ANSI SQL</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/lession-3-run-queries-on-complex-data-types/">Lession 3: Run Queries on Complex Data Types</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/summary/">Summary</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/analyzing-highly-dynamic-datasets/">Analyzing Highly Dynamic Datasets</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">Install Drill</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/install-drill-introduction/">Install Drill Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/deploying-drill-in-a-cluster/">Deploying Drill in a Cluster</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Installing Drill in Embedded Mode</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/embedded-mode-prerequisites/">Embedded Mode Prerequisites</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-linux/">Installing Drill on Linux</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-mac-os-x/">Installing Drill on Mac OS X</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-windows/">Installing Drill on Windows</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/installing-drill-in-distributed-mode/">Installing Drill in Distributed Mode</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">Connect a Data Source</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/connect-a-data-source-introduction/">Connect a Data Source Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/storage-plugin-registration/">Storage Plugin Registration</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Storage Plugin Configuration</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/plugin-configuration-introduction/">Plugin Configuration Introduction</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/workspaces/">Workspaces</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/file-system-storage-plugin/">File System Storage Plugin</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/hbase-storage-plugin/">HBase Storage Plugin</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/hive-storage-plugin/">Hive Storage Plugin</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/drill-default-input-format/">Drill Default Input Format</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/mongodb-plugin-for-apache-drill/">MongoDB Plugin for Apache Drill</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/mapr-db-format/">MapR-DB Format</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">ODBC/JDBC Interfaces</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/interfaces-introduction/">Interfaces Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/using-jdbc/">Using JDBC</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Using ODBC on Linux and Mac OS X</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/odbc-on-linux-and-mac-introduction/">ODBC on Linux and Mac Introduction</a></li> + + <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/configuring-connections-on-linux-and-mac-os-x/">Configuring Connections on Linux and Mac OS X</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/driver-configuration-options/">Driver Configuration Options</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/using-a-connection-string/">Using a Connection String</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/advanced-properties/">Advanced Properties</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 ODBC on Windows</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/installing-the-driver-on-windows/">Installing the Driver on Windows</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-connections-on-windows/">Configuring Connections on Windows</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/connecting-to-odbc-data-sources/">Connecting to ODBC Data Sources</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-drill-explorer-on-windows/">Using Drill Explorer on Windows</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/using-microstrategy-analytics-with-drill/">Using MicroStrategy Analytics with Drill</a></li> + + + </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-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> + + </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> + + + </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);">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/alter-session-command/">ALTER SESSION Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/alter-system-command/">ALTER SYSTEM Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/create-table-as-ctas-command/">CREATE TABLE AS (CTAS) command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/create-view-command/">CREATE VIEW command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/describe-command/">DESCRIBE Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/explain-commands/">EXPLAIN commands</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/select-statements/">SELECT Statements</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/show-databases-and-show-schemas-command/">SHOW DATABASES AND SHOW SCHEMAS Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/show-files-command/">SHOW FILES Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/show-tables-command/">SHOW TABLES Command</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/use-command/">USE Command</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> + + + </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/develop-a-simple-function/">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 class="reference internal" href="/docs/adding-custom-functions-to-drill/">Adding Custom Functions to Drill</a></li> + + + + <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 current_section "><a href="javascript: void(0);">Manage Drill</a></li> + <ul class="current_section"> + + + <li class="toctree-l2"><a class="reference internal" href="/docs/manage-drill-introduction/">Manage Drill Introduction</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/configuring-drill-in-a-dedicated-cluster/">Configuring Drill in a Dedicated Cluster</a></li> + + + + <li class="toctree-l2"><a href="javascript: void(0);">Configuring a Multitenant Cluster</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-a-multitenant-cluster-introduction/">Configuring a Multitenant Cluster Introduction</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-multitenant-resources/">Configuring Multitenant Resources</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-resources-for-a-shared-drillbit/">Configuring Resources for a Shared Drillbit</a></li> + + </ul> + + + + <li class="toctree-l2 current"><a href="javascript: void(0);">Configuration Options</a></li> + <ul style=""> + + <li class="toctree-l3"><a class="reference internal" href="/docs/configuration-options-introduction/">Configuration Options Introduction</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/start-up-options/">Start-Up Options</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/planning-and-execution-options/">Planning and Execution Options</a></li> + + <li class="toctree-l3"><a class="reference internal" href="/docs/persistent-configuration-storage/">Persistent Configuration Storage</a></li> + + </ul> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/starting-stopping-drill/">Starting/Stopping Drill</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/ports-used-by-drill/">Ports Used by Drill</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/partition-pruning/">Partition Pruning</a></li> + + + + <li class="toctree-l2"><a class="reference internal" href="/docs/monitoring-and-canceling-queries-in-the-drill-web-ui/">Monitoring and Canceling Queries in the Drill Web UI</a></li> + + + </ul> + + + + <li class="toctree-l1"><a href="javascript: void(0);">Developer Information</a></li> + <ul style="display: none"> + + + <li class="toctree-l2"><a href="javascript: void(0);">Develop Drill</a></li> + <ul style="display: none"> + + <li class="toctree-l3"><a 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