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36451a613d
- Added comprehensive technical design document for AI Brand Monitoring System V5, outlining system architecture, data models, sampling strategies, and monitoring protocols. - Key changes include a shift to a sampling-based trend monitoring approach, updated data collection and storage strategies, and new metrics for performance evaluation. - Implemented migration scripts to support the flattening of brand questions and versioning of question texts, ensuring historical data integrity and version control.
30 lines
690 B
SQL
30 lines
690 B
SQL
ALTER TABLE brand_questions
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ADD COLUMN IF NOT EXISTS question_text TEXT;
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UPDATE brand_questions q
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SET question_text = COALESCE(
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(
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SELECT v.question_text
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FROM brand_question_versions v
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WHERE v.id = q.current_version_id
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LIMIT 1
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),
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(
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SELECT v.question_text
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FROM brand_question_versions v
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WHERE v.question_id = q.id
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ORDER BY v.version_no DESC, v.id DESC
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LIMIT 1
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),
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''
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)
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WHERE q.question_text IS NULL;
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ALTER TABLE brand_questions
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ALTER COLUMN question_text SET NOT NULL;
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ALTER TABLE brand_questions
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DROP COLUMN IF EXISTS current_version_id;
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DROP TABLE IF EXISTS brand_question_versions;
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