[receiver/sqlqueryreceiver]: break up datasource parameter into separate fields

[justinianvoss22]

Description

• Breaks up values used in datasource parameter. Sends values to receiver separately in order to process them separately.
• Datasource is still required (as before). However, if datasource is not specified, the individual fields are used.
• Allows for encryption, character escaping, and driver-specific processing of these fields.

Link to tracking issue

Fixes #39760

Testing

• Unit tests:
  • scraper_test.go
  • config_test.go
  • receiver_test.go
• Testing locally:
  • Set up agent with sqlreceiver running
  • Use this configuration:

          sqlquery:
            driver: postgres
            host: localhost
            port: 5432
            username: justinvoss
            database: bindplane18
            additional_params:
              sslmode: disable
            storage: file_storage
            queries:
              - sql: "select * from resources"
                tracking_start_value: "10000"
                logs:
                  - body_column: name
  

• Using the old configuration should still work too:

         sqlquery:
             datasource: postgresql://justinvoss@localhost:5432/bindplane18?sslmode=disable
             driver: postgres
             queries:
                 - logs:
                     - attribute_columns:
                         - name
                         - kind
                     - body_column: data
                   sql: select * from resources```
                  
  
  

Documentation

• Update README.md

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: justinianvoss22 / name: Justin Voss (3109f35, d849cf4, 701fbfd, 83c0a25, 236cd80, 9f454ef, 71cd0d4, 8d4f879, a2c11f9, ae575bf, 6edbf7d, 40daa1b, 8c42182, a61108a, 86b00f3, 51b12e9, 8449cc6, d029ec7, e1bbe24, 83f98df, 63a714b, 72f9887, ebcfbce, 3d61fae, 6537ecd, 27acba3, 9068635, b6a59c6, ec8e377, 3403291, 0bfcf7b, 10ce20e, 7ef97cc, 90dd639, 5b07290, 6e73cef, 0611526, 1736f6b, 57c8f9b, 023c902, b2f80af, 40bd1b5, 1fb9ed5, 3500151, df96cef, 983f2a0, 2793f20, dbc92c8, 76efc31, ffe1f8d, 9826c64, 8d65ecd, 5c2d870)

[justinianvoss22]

@dmitryax @crobert-1 Originally, I converted the datasource parameter from a string into a struct. I realized it might be better to have a separate parameter, datasource_config, in order to not break existing functionality. Let me know your thoughts on this.

[justinianvoss22]

This URL: https://blogs.oracle.com/developers/post/connecting-a-go-application-to-oracle-database in receiver/sqlqueryreceiver/README.md is consistently failing the check-links PR check.

[justinianvoss22]

@crobert-1 Good to merge?

[justinianvoss22]

@crobert-1 I'm not authorized to push this branch, could I have you push this? Thanks!

[crobert-1]

@crobert-1 I'm not authorized to push this branch, could I have you push this? Thanks!

Only contrib maintainers have permission to merge PRs, I don't have permission either. I've added the ready to merge label to signal to them that this is ready, it should be merged relatively soon. Feel free to post in #otel-collector-dev on CNCF Slack if it sits too long. 👍

[justinianvoss22]

Ahh gotcha, thanks!