37 lines
1.3 KiB
MySQL
37 lines
1.3 KiB
MySQL
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-- ============================================================================
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-- SQL для очистки дубликатов в documents_meta
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-- ============================================================================
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-- Удаляет дубликаты, оставляя только самую новую запись для каждого field_name
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-- ============================================================================
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-- $1 = claim_id (UUID)
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UPDATE clpr_claims
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SET payload = jsonb_set(
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payload,
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'{documents_meta}',
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(
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SELECT COALESCE(jsonb_agg(doc ORDER BY (doc->>'uploaded_at') DESC NULLS LAST), '[]'::jsonb)
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FROM (
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SELECT DISTINCT ON (doc->>'field_name') doc
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FROM jsonb_array_elements(COALESCE(payload->'documents_meta', '[]'::jsonb)) AS doc
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ORDER BY
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doc->>'field_name',
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-- Приоритет: записи с file_url важнее, потом по дате
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CASE WHEN doc->>'file_url' IS NOT NULL AND doc->>'file_url' <> '' THEN 0 ELSE 1 END,
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(doc->>'uploaded_at') DESC NULLS LAST
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) unique_docs
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),
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true
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),
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updated_at = now()
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WHERE id = $1
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RETURNING
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id,
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jsonb_array_length(payload->'documents_meta') AS documents_meta_count,
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(
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SELECT jsonb_agg(doc->>'field_name')
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FROM jsonb_array_elements(payload->'documents_meta') AS doc
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) AS field_names;
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