我正在尝试一次更新多个行。为此,我要做一份事先准备好的声明:
WITH new_values (id, data, email) AS (
VALUES ($1, $2, $3), ($4, $5, $6), ($7, $8, $9), ($10, $11, $12)
)
UPDATE prospects
SET
data = new_values.data,
email = new_values.email
FROM new_values
WHERE
prospects.id = new_values.id
RETURNING *但我得到了以下错误:
error: bind message supplies 12 parameters, but prepared statement "prospects-multi-update" requires 0
api-prospects_1 | at Connection.parseE (/usr/src/app/node_modules/pg/lib/connection.js:546:11)
api-prospects_1 | at Connection.parseMessage (/usr/src/app/node_modules/pg/lib/connection.js:371:19)
api-prospects_1 | at Socket.<anonymous> (/usr/src/app/node_modules/pg/lib/connection.js:114:22)
api-prospects_1 | at Socket.emit (events.js:180:13)
api-prospects_1 | at addChunk (_stream_readable.js:274:12)
api-prospects_1 | at readableAddChunk (_stream_readable.js:261:11)
api-prospects_1 | at Socket.Readable.push (_stream_readable.js:218:10)
api-prospects_1 | at TCP.onread (net.js:581:20)我尝试过不同的查询(使用INSERT ... ON CONFLICT DO UPDATE),但它也是这样做的。
它只适用于直接的INSERT INTO查询。
编辑
下面是调用这个查询的代码:(我已经删除了字符串生成函数,因为它不是很有用)
const upsertValues = async (entities) => {
if (entities.length === 0) return []
const client = pool.connect()
const values = [...]
const variables = [...]
const setStatements = [...]
const res = await client.query({
name: `${resourceName}-multi-update`,
test: `
WITH new_values (id, ${columns}) AS (
VALUES ${variables}
)
UPDATE prospects
SET ${setStatements}
FROM new_values
WHERE
prospects.id = new_values.id
RETURNING *
`,
values: flatten(values),
})
return res.row || []
}发布于 2018-05-10 12:57:24
错误是由于准备语句的属性text被错误命名为test,因此引擎甚至找不到查询字符串。
https://stackoverflow.com/questions/50104937
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