Google cloud platform 在UNNEST（@array\u参数）-如何将@array\u参数指定为对象数组

我正在使用扳手nodejs客户端库。 我需要请求如下查询：

database.run({
sql: `SELECT * FROM Goods@{FORCE_INDEX=GoodsByCodeName} WHERE (code, name) in UNNEST(@codesNames)`,
params: {codesNames: codesNames}}, ...

如何指定

array\u参数的类型

-codesNames当它是对象数组时

[{string，string}，…]

我更改选择方式：

database.run({
sql: `SELECT * FROM Goods WHERE (code, name) in (SELECT (code, name) FROM (UNNEST (@codes) as code WITH OFFSET AS num JOIN UNNEST (@names) as name WITH OFFSET AS num using(num)))`,
params: {codes: codes, names: names},....

我通过以下方式更改选择：

database.run({
sql: `SELECT * FROM Goods WHERE (code, name) in (SELECT (code, name) FROM (UNNEST (@codes) as code WITH OFFSET AS num JOIN UNNEST (@names) as name WITH OFFSET AS num using(num)))`,
params: {codes: codes, names: names},....

---

云扳手还不支持对象类型的参数。为了解决这个问题，您可以将对象分解为每个字段的并行数组参数，在偏移量上连接它们，创建一个子查询，其中包含与对象类型相同的行

（code，name）

，并根据表连接该子查询，如下所示：

SELECT * FROM Goods@{FORCE_INDEX=GoodsByCodeName} g 
JOIN (
  SELECT p.code, q.name from
  (SELECT code, o_code FROM UNNEST(@code_array) as code WITH OFFSET o_code) p
  JOIN
  (SELECT name, o_name FROM UNNEST(@name_array) as name WITH OFFSET o_name) q
  ON p.o_code = q.o_name)
) r ON g.code = r.code and g.name = r.name

---

云扳手还不支持对象类型的参数。为了解决这个问题，您可以将对象分解为每个字段的并行数组参数，在偏移量上连接它们，创建一个子查询，其中包含与对象类型相同的行

（code，name）

，并根据表连接该子查询，如下所示：

SELECT * FROM Goods@{FORCE_INDEX=GoodsByCodeName} g 
JOIN (
  SELECT p.code, q.name from
  (SELECT code, o_code FROM UNNEST(@code_array) as code WITH OFFSET o_code) p
  JOIN
  (SELECT name, o_name FROM UNNEST(@name_array) as name WITH OFFSET o_name) q
  ON p.o_code = q.o_name)
) r ON g.code = r.code and g.name = r.name