Presto connection reference

Learn about the fields used to create a Presto connection with ThoughtSpot DataFlow.

Here is a list of the fields for a Presto connection in ThoughtSpot DataFlow. You need specific information to establish a seamless and secure connection.

Connection properties

Connection name

Name your connection. Mandatory field.

Example:

PrestoSQLConnection

Connection type

Choose the Presto connection type. Mandatory field.

Example:

Presto

Host

Specify the hostname or the IP address of the Presto system. Mandatory field.

Example:

www.example.com

Port

Specify the port associated to the Presto system. Mandatory field.

Example:

1234

Query engine

Specifies the type of query engine to connect to this instance. Mandatory field.

Example:

Presto

Valid Values:

Presto, Starburst, Trino

Default:

Presto

User name

Specify the user id that will be used to connect to the Presto system. This user should have necessary privileges to access the data in the databases. Mandatory field.

Example:

userdi

Authentication type

Specifies the type of security protocol to connect to the instance. Based on the type of security select the authentication type and provide details. Mandatory field.

Example:

SSL

Valid Values:

No Auth, SSL, LDAP, KERBEROS

Default:

No Auth

SSL key store path

Specify trust store path which is generated by server. Mandatory field.

Example:

trust store

SSL key store password

Specify password for key store which is generated by client which is created while generating key store file. Mandatory field.

Example:

password

Ldap password

Provide LDAP password to connect. Mandatory field.

Example:

password

Kerberos remote service name

Hostname of the kerberos server, this is required to generate the krb.conf file. Mandatory field.

User principal

To authenticate via a key-tab you must have supporting key-tab file which is generated by Kerberos Admin and also requires the user principal associated with Key-tab (Configured while enabling Kerberos). Mandatory field.

Kerberos config

A Kerberos config explains the configuration details used to connect to Kerberos authentication server. Mandatory field.

Example:

name.example.com

User keytab

To authenticate via a key-tab you must have supporting key-tab file which is generated by Kerberos Admin and also requires the user principal associated with Key-tab (Configured while enabling Kerberos). Mandatory field.

Example:

/app/keytabs/labuser.keytab

Catalog name

Specify the catalog file name. Mandatory field.

Example:

direp

Other notes:

Advanced configuration.

Schema name

Specify the schema name of a database. Mandatory field.

Example:

dbrep

Other notes:

Advanced configuration.

JDBC options

Specify the options associated with the JDBC URL.

Optional field.

Example:
jdbc:sqlserver://[serverName[\instanceName][:portNumber]]
Other notes:

Advanced configuration.

Sync properties

Column delimiter

Specify the column delimiter character. Mandatory field.

Example:

1

Valid Values:

Any printable ASCII character or decimal value for ASCII character

Enclosing character

Specify if the text columns in the source data needs to be enclosed in quotes. Optional field.

Example:

DOUBLE

Valid Values:

SINGLE, DOUBLE

Other notes:

This is required if the text data has newline character or delimiter character.

Escape character

Specify the escape character if using a text qualifier in the source data. Optional field.

Example:

\"

Valid Values:

Any ASCII character

Max ignored rows

Abort the transaction after encountering 'n' ignored rows. Optional field.

Example:

0

Valid Values:

Any numeric value

Default:

0

Fetch size

Specify the number of rows to be fetched at a time and processed in memory. If the value specified is zero then, all rows are extracted at once.

Default:

1000

tsload options

Specifies the parameters passed with the tsload command, in addition to the commands already included by the application. The format for these parameters is:

<param_1_name> = <param_1_value>
Example:
date_time_format = %Y-%m-%d
date_format = %Y-%m-%d;time_format = %H:%M:%S
Valid Values:
null_value = NULL
max_ignored_rows = 0
Default:
max_ignored_rows = 0

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