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code/allapp/allapp-go-v3/pkg/db/select.go

@@ -4,6 +4,7 @@ import (
 	"allapp-go/pkg/logger"
 	"context"
 	"fmt"
+	"strconv"
 	"strings"
 
 	"go.uber.org/zap"
@@ -96,3 +97,23 @@ func (c *Client) query(ctx context.Context, sql string, args ...any) ([]map[stri
 
 	return result, rows.Err()
 }
+
+// 高效 placeholder 转换
+func convertPlaceholder(sql string) string {
+	var sb strings.Builder
+	sb.Grow(len(sql))
+
+	argIndex := 1
+
+	for i := 0; i < len(sql); i++ {
+		if sql[i] == '?' {
+			sb.WriteByte('$')
+			sb.WriteString(strconv.Itoa(argIndex))
+			argIndex++
+		} else {
+			sb.WriteByte(sql[i])
+		}
+	}
+
+	return sb.String()
+}