PostgreSQL

A common and reliable open-source relation database system with support for advanced SQL standards and diverse data types.

Supported Connection Methods

Available methods for connections to the target system from Lumi AI:

• Direct

  The default / typical connection option. Interfaces directly with the target system over the Internet with no mediation. Suitable for most cloud-hosted scenarios or public-facing resources. See Network Configuration for more details.

• Gateway An alternative connection method leveraging a Lumi AI Data Gateway. This uses Lumi AI's purpose-built connection agent to mediate communications. Ideal for restricting access to systems within a protected network. For more information, see Data Gateway.

Supported Limits

The following are limits that can be configured for the system to moderate access and usage from users in Lumi AI:

• Cost Limit Before running a query, if the system supports it, the system-specific compute cost (or surrogate) estimate will be processed and compared to an organization-level/admin-set cost limit for systems of this type (if configured/set). If exceeded, the query will not run (and either the workflow will attempt an optimization or the user will be notified).

• Duration Limit An alternative to cost, queries will be stopped the system supports a duration/timeout limit and one is set/configured at the organization level (across systems).

Available Parameters

These properties are the essential source system connection properties that all queries are directed towards.

* Required parameters

Note: The Gateway parameter is common to all systems (when supported) and is only available when gateway is the selected connection method.

Host*

Domain or IP of the database to allow a connection to Lumi AI.

👍 Valid Examples

• Domain name: docs.lumi-ai.com

• IPv4: 55.88.92.101

👎 Invalid Examples

• IPv4 with alphanumeric characters: 123.abc.def.456

• Incomplete domain name resolutions: lumi-ai.com

Port*

Access port to allow for connections to the database.

👍 Valid Examples

• Default PostgreSQL port: 5432

👎 Invalid Examples

• Known Port Numbers (0-1023): 80

Username*

Username of the generated database user which will be used for interactions and transactions.

Special Considerations

• If double quotes are used, then the name will be case sensitive

👍 Valid Examples

• Uses alphanumeric characters : lumi1

• Utilizing underscore (_) in place of spaces: user_number

👎 Invalid Examples

• Starting with a number: 1lumi

• Utilizing spaces: user name

• Using invalid characters: user#1

Password*

Password of the generated database user which will be used for interactions and transactions.

Database*

Literal database name that will be used for transactions within the agents.

Special Considerations

• If case sensitivity is required, utilize double quotes for database name; ex. "New_database"

👍 Valid Examples

• Uses alphanumeric characters: lumi1

• Utilizing underscore (_) in place of spaces: new_database

👎 Invalid Examples

• Starting with a number: 1lumi

• Utilizing spaces: user name

• Using reserved words unquoted: select

System Permissions & Configuration

Provided user must have the following:

• ROLE with LOGIN privileges

• PRIVILEGE to CONNECT on database

• PRIVILEGE to USAGE on schema

• SELECT PRIVILEGE in table(s)

• (if applicable) SELECT PRIVILEGE on table(s) for column(s)

For configurations:

• Ensure the server is allowing connections from the Lumi gateway or server

Special Considerations

• Special characters and case sensitivity can be utilized in database names and usernames via encasing the name in double quotes (" "), but is not recommended

Common Issues

• Ensure the firewall settings allow for a connection to the database