example(connector_sdk) : Error and warnings

[fivetran-JenasVimal]

Jira ticket

RD-1254644

Description of Change

Adding example for the two newly introduced operations , op.error and op.warning
https://github.com/fivetran/engineering/pull/308180#pullrequestreview-4873630590
read this for more info

Testing

fivetran debug

fivetran deploy

Checklist

Some tips and links to help validate your PR:

• Tested the connector with fivetran debug command.
• Added/Updated example-specific README.md file, see the README template for the required structure and guidelines.
• Followed Python Coding Standards, refer here

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[Copilot]

Pull request overview

Adds a new Connector SDK example under examples/common_patterns/ demonstrating the newly introduced op.warning() and op.error() operations, and links it from the main examples index.

Changes:

• Added a new “error_and_warning_operations” common-pattern example (connector, README, mock CSV).
• Documented deterministic behavior for row-level warnings vs terminal primary-key errors.
• Updated examples/README.md to include the new example.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
examples/README.md	Adds a link to the new common-pattern example.
examples/common_patterns/error_and_warning_operations/README.md	Documents the new example’s intended warning/error flow and usage.
examples/common_patterns/error_and_warning_operations/mock_weather.csv	Provides deterministic input rows to trigger two warnings and a terminal error.
examples/common_patterns/error_and_warning_operations/connector.py	Implements the example connector using op.warning() and op.error().

Suppressed comments (1)

examples/common_patterns/error_and_warning_operations/connector.py:138

• After validating zipcode earlier in the loop, this later if not zipcode: block becomes redundant and will never trigger. Removing it avoids dead code and keeps the example easier to follow.

        # Final terminal error:
        # Empty primary key means record identity is invalid, so sync must stop.
        if not zipcode:
            op.error(
                message=(

[fivetran-anushkaparashar]

Added a few comments

[fivetran-dejantucakov]

@fivetran-JenasVimal Approved with changes

[fivetran-anushkaparashar]

Changes look good!
Please fix the failing spec!

[fivetran-sahilkhirwal]

minor comments
Rest looks good