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执行时真实时钟与持久授权回读（撤销/过期即停并保留预备份）、写集合写前落盘、 租约与 attempt 身份、恢复队列与原发送身份分离、成功收尾必须释放维护后再登记终态。
27 lines
1.0 KiB
Go
27 lines
1.0 KiB
Go
package postgres
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import (
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"context"
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"errors"
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"knowledge-governance/internal/governance"
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)
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// Query the source identity before applying LIMIT: target/prebackup events and
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// other source instances can never push the candidate out of a history window.
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func (s *Store) LibrarySourceCandidate(ctx context.Context, scope, sourceID string) (governance.LibraryVersion, bool, error) {
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if sourceID == "" {
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return governance.LibraryVersion{}, false, errors.New("source identity required")
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}
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rows, err := s.db.Query(ctx, `SELECT id,scope,kind,snapshot_id,version_label,source_job_id,operation_id,attempt_epoch,evidence,created_by,created_at,superseded_at
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FROM library_versions WHERE scope=$1 AND kind='test_sealed' AND evidence->>'source_id'=$2
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ORDER BY created_at DESC,id DESC LIMIT 1`, scope, sourceID)
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if err != nil {
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return governance.LibraryVersion{}, false, err
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}
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items, err := scanLibraryVersions(rows, 1)
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if err != nil || len(items) == 0 {
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return governance.LibraryVersion{}, false, err
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}
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return items[0], true, nil
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}
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