Drill uses SQLLine as the Drill shell. SQLLine is a pure-Java console-based utility for connecting to relational databases and running SQL commands.
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Starting in Drill 1.17, Drill uses SQLLine 1.9.
Drill 1.16 uses SQLLine 1.7, which changes the default Drill prompt to
apache drill> . If you switch to a specific schema, for example dfs.tmp , the prompt includes the current schema, as shown:
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To return to the previous prompt display, modify
drill-sqlline-override.conf , and set drill.sqlline.prompt.with_schema to false.
Alternatively, you can define a custom prompt using the command
!set prompt <new-prompt> , as shown: How to download free music legally from youtube.
You can use
prompt , promptScript , or rightPrompt with the !set command. These properties can be overridden in drill-sqlline-override.conf .
Starting in Drill 1.15, Drill uses SQLLine 1.6, which you can customize through the Drill configuration file, drill-sqlline-override.conf. Before installing and running Drill with SQLLine 1.6, delete the old SQLLine history file located in: Best app mockup app mac desktop.
After starting the Drill shell, you can run Drill shell commands and queries from the command line. Typing the shell command '!help' lists configuration and other options that you can set to manage shell functionality.
Formatting tables takes time, which you may notice when running a huge query using the default outputFormat. The default outputFormat is “table.” You can set the outputFormat to a more performant table formatting, such as csv, as shown in the examples.
SQLLine Connection Parameters
https://sitemonsters156.weebly.com/bone-thugs-n-harmony-e-1999-eternal-rapidshare.html. You can use a jdbc connection string to connect to SQLLine when Drill is installed in embedded mode or distributed mode, as shown in the following examples:
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When you use a jdbc connection string to connect to Drill via SQLLine, you can include SQLLine connection parameters in the connection string, as shown in the following example:
./sqlline -u 'jdbc:drill:drillbit=local' --help
Note: Use single quotes around the jdbc portion of the connection string when using SQLLine parameters.
The --help command prints all the SQLLine connection parameters that you can include in the jdbc connection string, as shown in the following table:
Example Connection String with Parameter
This example shows a jdbc connection string that includes the
-e parameter to pass a query during the connection to Drill. The -e parameter is equivalent to the -q parameter. This connection string starts Drill, runs the query and then closes the connection. This type of connection string is useful in a script. The connection is run from DRILL_HOME/bin.
Drill Shell Commands
The following table lists some of the Drill shell commands that you can run from the command line. To see a complete list of shell commands issue the
!help command.
Note: Some new shell commands, such as
!reset , and key-strokes were introduced when Drill upgraded to SQLLine 1.6 (Drill 1.15 and later); however, not all of the commands are supported.
Examples of Configuring the Drill Shell
For example, quit the Drill shell: Access virus vst plugin free download.
List the current connections.
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When starting Drill in authentication mode, you can use the !connect command as shown in the section, 'User Authentication Process', instead of using a command such as sqlline, drill-embedded, or drill-conf commands. For example, after running the sqlline script, you enter this command to connect to Drill:
sqlline> !connect jdbc:drill:zk=localhost:2181
When prompted you enter a user name and password, which is hidden as you type it.
Set Command Variables
The following table lists some of the set command variables that you can use with the !set command:
Note: Issue the !set command without a variable to see the full list of command variables.
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Set the maximum width of the Drill shell to 10000.
Set the output format to CSV to improve performance of a huge query.
Customizing SQLLine in the drill-sqlline-override.conf File
Starting in Drill 1.15, SQLLine (the Drill shell) is upgraded to version 1.6. You can customize SQLLine through the Drill configuration file,
drill-sqlline-override.conf , located in the <drill-installation>/conf directory.
You can customize quotes of the day; the quotes you see at the command prompt when starting Drill, such as “Just Drill it,” and you can override the SQLLine default properties. The SQLLine default properties are those that print when you run
!set from the Drill shell.
Drill reads the
drill-sqlline-override.conf file and applies the custom configuration during start-up. You must restart Drill for the changes to take effect. The file remains in the directory and Drill applies the custom configuration at each restart.
Note: The SQLLine configuration file in the
<drill-installation>/conf directory is named drill-sqlline-override-example.conf . Use this file and the information provided in the file as guidance for the drill-sqlline-override.conf https://yiqoyx.weebly.com/blog/utorrent-app-store-mac. file you create and store in the directory with your customizations.
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