Release Notes - Apache Drill

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alt="Slack logo" align="center"></a> </li> <li class='search-bar'> <form id="drill-search-form"> <input type="text" placeholder="Search Apache Drill" id="drill-search-term" /> <button type="submit"> <i class="fa fa-search"></i> </button> </form> </li> <li class="d"> <a href="/download/"> <i class="fa fa-cloud-download"></i> Download </a> </li> </ul> </div> <link href="/css/content.css" rel="stylesheet" type="text/css"> <aside class="sidebar"> <div class="docsidebar"> <div class="docsidebarwrapper"> <ul style="display: block;"> <li class="toctree-l1"><a href="javascript: void(0);">Getting Started</a></li> <ul style="display: none"> <li class="toctree-l2"><a class="reference internal" href="/docs/drill-introduction/">Drill Introduction</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/why-drill/">Why Drill</a></li> </ul> <li class="toctree-l1"><a href="javascript: void(0);">Architecture</a></li> <ul style="display: none"> <li class="toctree-l2"><a class="reference internal" href="/docs/architecture-introduction/">Architecture Introduction</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/drill-query-execution/">Drill Query Execution</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/core-modules/">Core Modules</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/performance/">Performance</a></li> </ul> <li class="toctree-l1"><a href="javascript: void(0);">Tutorials</a></li> <ul style="display: none"> <li class="toctree-l2"><a class="reference internal" href="/docs/tutorials-introduction/">Tutorials Introduction</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/drill-in-10-minutes/">Drill in 10 Minutes</a></li> <li class="toctree-l2"><a class="reference internal" 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/lesson-1-learn-about-the-data-set/">Lesson 1: Learn about the Data Set</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/lesson-2-run-queries-with-ansi-sql/">Lesson 2: Run Queries with ANSI SQL</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/lesson-3-run-queries-on-complex-data-types/">Lesson 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> <li class="toctree-l2"><a class="reference internal" href="/docs/analyzing-social-media/">Analyzing Social Media</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/analyzing-data-using-window-functions/">Analyzing Data Using Window Functions</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/orchestrating-queries-with-airflow/">Orchestrating queries with Airflow</a></li> </ul> <li class="toctree-l1"><a href="javascript: void(0);">Drill-on-YARN</a></li> <ul style="display: none"> <li class="toctree-l2"><a class="reference internal" href="/docs/drill-on-yarn-introduction/">Drill-on-YARN Introduction</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/creating-a-basic-drill-cluster/">Creating a Basic Drill Cluster</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/launch-drill-under-yarn/">Launch Drill Under YARN</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/configuration-reference/">Configuration Reference</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/drill-on-yarn-command-line-tool/">Drill-on-YARN Command-Line Tool</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/using-the-drill-on-yarn-web-ui/">Using the Drill-on-YARN Web UI</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/multiple-drill-clusters/">Multiple Drill Clusters</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/enabling-web-ui-security/">Enabling Web UI Security</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/appendix-a-release-note-issues/">Appendix A: Release Note Issues</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/appendix-b-drill-env-sh-settings/">Appendix B: drill-env.sh Settings</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/appendix-c-troubleshooting/">Appendix C: Troubleshooting</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/appendix-d-recreate-the-drill-archive/">Appendix D: Recreate the Drill Archive</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/migrating-parquet-data/">Migrating Parquet Data</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/running-drill-on-docker/">Running Drill on Docker</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-linux-and-mac-os-x/">Installing Drill on Linux and Mac OS X</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/starting-drill-on-linux-and-mac-os-x/">Starting Drill on Linux and 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> <li class="toctree-l3"><a class="reference internal" href="/docs/starting-drill-on-windows/">Starting Drill on Windows</a></li> </ul> <li class="toctree-l2"><a href="javascript: void(0);">Installing Drill in Distributed Mode</a></li> <ul style="display: none"> <li class="toctree-l3"><a class="reference internal" href="/docs/distributed-mode-prerequisites/">Distributed Mode Prerequisites</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-on-the-cluster/">Installing Drill on the Cluster</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/starting-drill-in-distributed-mode/">Starting Drill in Distributed Mode</a></li> </ul> <li class="toctree-l2"><a class="reference internal" href="/docs/starting-the-web-ui/">Starting the Web UI</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/stopping-drill/">Stopping Drill</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/identifying-multiple-drill-versions-in-a-cluster/">Identifying Multiple Drill Versions in a Cluster</a></li> <li class="toctree-l2"><a href="javascript: void(0);">Extended</a></li> <ul style="display: none"> <li class="toctree-l3"><a class="reference internal" href="/docs/installing-drill-in-distributed-mode-with-gcp-dataproc/">Installing Drill in Distributed Mode with GCP Dataproc</a></li> </ul> </ul> <li class="toctree-l1"><a href="javascript: void(0);">Configure Drill</a></li> <ul style="display: none"> <li class="toctree-l2"><a class="reference internal" href="/docs/configure-drill-introduction/">Configure Drill Introduction</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/configuring-drill-memory/">Configuring Drill Memory</a></li> <li class="toctree-l2"><a href="javascript: void(0);">Securing Drill</a></li> <ul style="display: none"> <li class="toctree-l3"><a class="reference internal" href="/docs/securing-drill-introduction/">Securing Drill Introduction</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/secure-communication-paths/">Secure Communication Paths</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/roles-and-privileges/">Roles and Privileges</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-user-impersonation/">Configuring User Impersonation</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-inbound-impersonation/">Configuring Inbound Impersonation</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-user-impersonation-with-hive-authorization/">Configuring User Impersonation with Hive Authorization</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-user-security/">Configuring User Security</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-plain-security/">Configuring Plain Security</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-ssl-tls-for-encryption/">Configuring SSL/TLS for Encryption</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/using-libpam4j-as-the-pam-authenticator/">Using libpam4j as the PAM Authenticator</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/using-jpam-as-the-pam-authenticator/">Using jpam as the PAM Authenticator</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-htpasswd-file-authentication/">Configuring htpasswd file authentication</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-hashicorp-vault-authentication/">Configuring HashiCorp Vault authentication</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-kerberos-security/">Configuring Kerberos Security</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-drill-to-use-spnego-for-http-authentication/">Configuring Drill to use SPNEGO for HTTP Authentication</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-web-ui-and-rest-api-security/">Configuring Web UI and REST API Security</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-custom-acls-to-secure-znodes/">Configuring Custom ACLs to Secure znodes</a></li> </ul> <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="display: none"> <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> <li class="toctree-l3"><a class="reference internal" href="/docs/global-query-list/">Global Query List</a></li> </ul> <li class="toctree-l2"><a class="reference internal" href="/docs/ports-and-bind-addresses-used-by-drill/">Ports and Bind Addresses Used by Drill</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/configuring-the-drill-shell/">Configuring the Drill Shell</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/configuring-cgroups-to-control-cpu-usage/">Configuring cgroups to Control CPU Usage</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-basics/">Plugin Configuration Basics</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-storage-plugins/">Configuring Storage Plugins</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/storage-plugin-authentication-modes/">Storage plugin authentication modes</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/drill-default-input-format/">Drill Default Input Format</a></li> </ul> <li class="toctree-l2"><a class="reference internal" href="/docs/file-system-storage-plugin/">File System Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/hbase-storage-plugin/">HBase Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/hive-storage-plugin/">Hive Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/rdbms-storage-plugin/">RDBMS Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/mongodb-storage-plugin/">MongoDB Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/mapr-db-format/">MapR-DB Format</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/s3-storage-plugin/">S3 Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/oci-os-storage-plugin/">OCI OS Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/opentsdb-storage-plugin/">OpenTSDB Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/kafka-storage-plugin/">Kafka Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/azure-blob-storage-plugin/">Azure Blob Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/druid-storage-plugin/">Druid Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/http-storage-plugin/">HTTP Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/elasticsearch-storage-plugin/">ElasticSearch Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/splunk-storage-plugin/">Splunk Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/cassandra-storage-plugin/">Cassandra Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/dropbox-storage-plugin/">Dropbox Storage Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/google-sheets-storage-plugin/">Google Sheets Storage Plugin</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-the-jdbc-driver/">Using the JDBC Driver</a></li> <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/logging-and-tracing/">Logging and Tracing</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-10-2/">Using Apache Drill with Tableau 10.2</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 Builders’ 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 href="javascript: void(0);">Querying Indexes</a></li> <ul style="display: none"> <li class="toctree-l3"><a class="reference internal" href="/docs/querying-indexes-introduction/">Querying Indexes Introduction</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/queries-that-qualify-for-index-based-query-plans/">Queries that Qualify for Index-Based Query Plans</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/types-of-indexes/">Types of Indexes</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/index-selection/">Index Selection</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/designing-indexes-for-your-queries/">Designing Indexes for Your Queries</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/configuring-index-planning/">Configuring Index Planning</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/verifying-index-use/">Verifying Index Use</a></li> </ul> <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-ui/">Monitoring and Canceling Queries in the Drill Web UI</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 href="javascript: void(0);">Drill Metastore</a></li> <ul style="display: none"> <li class="toctree-l3"><a class="reference internal" href="/docs/using-drill-metastore/">Using Drill Metastore</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/drill-iceberg-metastore/">Drill Iceberg Metastore</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/rdbms-metastore/">RDBMS Metastore</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/mongo-metastore/">Mongo Metastore</a></li> </ul> <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/throttling/">Throttling</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/statistical/">Statistical</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/data-type-functions/">Data Type Functions</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> <li class="toctree-l3"><a class="reference internal" href="/docs/phonetic-functions/">Phonetic Functions</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/string-distance-functions/">String Distance Functions</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/cryptography-functions/">Cryptography Functions</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/sql-dialect-compatibility-functions/">SQL dialect compatibility functions</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/gis-functions/">GIS functions</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/time-series-analysis-functions/">Time Series Analysis Functions</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/ip-networking-functions/">IP Networking functions</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> <li class="toctree-l3"><a class="reference internal" href="/docs/list-creation-functions/">COLLECT_LIST</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/analyze-table-refresh-metadata/">ANALYZE TABLE REFRESH METADATA</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/analyze-table-compute-statistics/">ANALYZE TABLE COMPUTE STATISTICS</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/refresh-table-metadata/">REFRESH TABLE METADATA</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-or-replace-schema/">CREATE OR REPLACE SCHEMA</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-temporary-table-as-cttas/">CREATE TEMPORARY TABLE AS (CTTAS)</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/lateral-join/">LATERAL Join</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/set-operators/">Set Operators</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> <li class="toctree-l3"><a class="reference internal" href="/docs/pivot-operators/">Pivot Operators</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/logfile-plugin/">Logfile Plugin</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> <li class="toctree-l2"><a class="reference internal" href="/docs/httpd-format-plugin/">HTTPD Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/image-metadata-format-plugin/">Image Metadata Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/syslog-format-plugin/">Syslog Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/ltsv-format-plugin/">LTSV Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/spss-format-plugin/">SPSS Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/esri-shapefile-format-plugin/">ESRI Shapefile Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/excel-format-plugin/">Excel Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/hdf5-format-plugin/">HDF5 Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/ms-access-format-plugin/">Microsoft Access Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/xml-format-plugin/">XML Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/iceberg-format-plugin/">Iceberg Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/delta-lake-format-plugin/">Delta Lake Format Plugin</a></li> <li class="toctree-l2"><a class="reference internal" href="/docs/sas-format-plugin/">SAS Format Plugin</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/creating-custom-authenticators/">Creating Custom Authenticators</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 href="javascript: void(0);">REST API</a></li> <ul style="display: none"> <li class="toctree-l3"><a class="reference internal" href="/docs/rest-api-introduction/">REST API Introduction</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/submitting-queries-from-the-rest-api-when-impersonation-is-enabled-and-authentication-is-disabled/">Submitting Queries from the REST API when Impersonation is Enabled and Authentication is Disabled</a></li> <li class="toctree-l3"><a class="reference internal" href="/docs/use-postman-to-run-sql-queries-on-drill-data-sources/">Use Postman to Run SQL Queries on Drill Data Sources</a></li> </ul> <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> <li class="toctree-l3"><a class="reference internal" href="/docs/useful-information-for-drill-developers/">Useful Information for Drill Developers</a></li> </ul> <li class="toctree-l2"><a href="javascript: 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