113 lines
2.9 KiB
Go
113 lines
2.9 KiB
Go
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// 初始化或重置 cursor 的脚本
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package main
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import (
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"context"
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"database/sql"
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"fmt"
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"log"
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"strings"
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"time"
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_ "github.com/lib/pq"
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)
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const (
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pgHost = "localhost"
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pgPort = 5432
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pgUser = "postgres"
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pgPassword = "postgres"
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pgDatabase = "trustlog"
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)
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func main() {
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fmt.Println("🔧 Cursor Initialization Tool")
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fmt.Println(strings.Repeat("=", 60))
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// 连接数据库
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dsn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
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pgHost, pgPort, pgUser, pgPassword, pgDatabase)
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db, err := sql.Open("postgres", dsn)
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if err != nil {
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log.Fatalf("Failed to connect: %v", err)
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}
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defer db.Close()
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if err := db.Ping(); err != nil {
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log.Fatalf("Failed to ping: %v", err)
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}
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fmt.Println("✅ Connected to PostgreSQL")
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fmt.Println()
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ctx := context.Background()
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// 查询最早的 NOT_TRUSTLOGGED 记录
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var earliestTime sql.NullTime
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err = db.QueryRowContext(ctx,
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"SELECT MIN(created_at) FROM operation WHERE trustlog_status = 'NOT_TRUSTLOGGED'",
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).Scan(&earliestTime)
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if err != nil {
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log.Fatalf("Failed to query earliest record: %v", err)
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}
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var cursorValue string
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if earliestTime.Valid {
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// 设置为最早记录之前 1 秒
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cursorValue = earliestTime.Time.Add(-1 * time.Second).Format(time.RFC3339Nano)
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fmt.Printf("📊 Earliest NOT_TRUSTLOGGED record: %v\n", earliestTime.Time)
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fmt.Printf("📍 Setting cursor to: %s\n", cursorValue)
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} else {
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// 如果没有未存证记录，使用一个很早的时间
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cursorValue = time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC).Format(time.RFC3339Nano)
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fmt.Println("📊 No NOT_TRUSTLOGGED records found")
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fmt.Printf("📍 Setting cursor to default: %s\n", cursorValue)
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}
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fmt.Println()
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// 插入或更新 cursor
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_, err = db.ExecContext(ctx, `
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INSERT INTO trustlog_cursor (cursor_key, cursor_value, last_updated_at)
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VALUES ($1, $2, $3)
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ON CONFLICT (cursor_key)
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DO UPDATE SET cursor_value = EXCLUDED.cursor_value, last_updated_at = EXCLUDED.last_updated_at
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`, "operation_scan", cursorValue, time.Now())
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if err != nil {
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log.Fatalf("Failed to init cursor: %v", err)
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}
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fmt.Println("✅ Cursor initialized successfully!")
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fmt.Println()
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// 验证
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var savedValue string
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var updatedAt time.Time
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err = db.QueryRowContext(ctx,
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"SELECT cursor_value, last_updated_at FROM trustlog_cursor WHERE cursor_key = 'operation_scan'",
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).Scan(&savedValue, &updatedAt)
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if err != nil {
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log.Fatalf("Failed to verify cursor: %v", err)
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}
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fmt.Println("📊 Cursor Status:")
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fmt.Printf(" Key: operation_scan\n")
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fmt.Printf(" Value: %s\n", savedValue)
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fmt.Printf(" Updated: %v\n", updatedAt)
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fmt.Println()
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// 统计
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var notTrustloggedCount int
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db.QueryRowContext(ctx, "SELECT COUNT(*) FROM operation WHERE trustlog_status = 'NOT_TRUSTLOGGED'").Scan(¬TrustloggedCount)
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fmt.Printf("📝 Records to process: %d\n", notTrustloggedCount)
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fmt.Println()
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fmt.Println("✅ Cursor Worker 现在会处理这些记录")
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fmt.Println(strings.Repeat("=", 60))
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}
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