Question

我正在尝试使用Filter Expression在GSI中执行查询，但AWS一直告诉我没有找到表达式。查询如下：

var tableQuery = {
        TableName: "posts",
        KeyConditionExpression: "#wy = :wkYr",
        FilterExpression: "#ac = :isAct",
        IndexName: "weekYear-date-index",
        ScanIndexForward: false,
        Limit: 50,
        ExpressionAttributeNames: {
            "#wy": "weekYear",
            "#ac": "isActive"
        },
        ExpressionAttributeValues: {
            ":wkYr": cWeekYear,
            ":isAct": {BOOL: true}
        }
    };

并显示错误：

An expression attribute value used in expression is not defined; attribute value: :isAct

我一直在尝试不同的方法，但似乎没有任何效果，任何想法？

当前查询的控制台日志：

 {
  "TableName": "posts",
  "KeyConditionExpression": "#wy = :wkYr",
  "FilterExpression": "#ac = :isAct",
  "IndexName": "weekYear-date-index",
  "ScanIndexForward": false,
  "Limit": 50,
  "ExpressionAttributeNames": {
    "#wy": "weekYear",
    "#ac": "isActive"
  },
  "ExpressionAttributeValues": {
    ":wkYr": 2040,
    ":isAct": {
      "BOOL": true
    }
  }
}

Answer 1

这就是您应该传递自己的价值的方式 ":isAct": true

使用FilterExpression在GSI中进行DynamoDB查询

1 个答案: