我正在尝试在 cassandra 中插入地图类型：
const query = 'INSERT INTO stats.tickets (office, line, generation, inserted_at, meta, number, prefix) VALUES (:office, :line, :generation, :inserted_at, :meta, :number, :prefix)';
const parametersExample = {
office: "office",
line: "line",
generation: 10,
inserted_at: Date.now(),
meta: {"tag1": "ujkukkik", "tag2": "asdascee"},
number: 1,
prefix: "prefix_"
};
const result = async () => {
return await client.execute(query, parametersExample, { prepare: true });
};
result().then( res => {
res.rows.map( row => console.log(row.content) );
process.exit();
}).catch( err => console.error(err));
该代码插入行，但显示以下消息：
TypeError: Cannot read property 'map' of undefined
at lib/handleData.js:23:14
at <anonymous>
at process._tickDomainCallback (internal/process/next_tick.js:228:7)
是什么原因？
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我来说两句