Bug 1981813 - [phab-etl] track transactions in the Phab-ETL

[dklawren]

This creates a new transactions table that contains status changes for all revisions. Schema changes will be made in proper place to add the following:

  bq_metrics_transactions_schema = jsonencode([
    { name = "revision_id", type = "INT64" },
    { name = "transaction_id", type = "INT64" },
    { name = "transaction_type", type = "STRING" },
    { name = "date_created", type = "TIMESTAMP" },
    { name = "author_username", type = "STRING" },
    { name = "author_email", type = "STRING" },
    { name = "old_value", type = "STRING" },
    { name = "new_value", type = "STRING" },
  ])

[Copilot]

Pull Request Overview

This PR adds transaction tracking functionality to the Phabricator ETL pipeline to capture state changes on revisions. The implementation follows the existing pattern used for comments, diffs, and other data entities.

Key changes:

• New get_transactions() function that queries and transforms transaction data for state change events
• Integration of transactions data into the BigQuery pipeline with proper staging and merge operations
• Configuration for a new BQ_TRANSACTIONS_TABLE_ID environment variable

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[cgsheeh]

LGTM.

[Copilot]

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

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[cgsheeh]

LGTM!