Simba][SpannerJDBCDriver](100300) 来自服务器的错误消息：INVALID_ARGUMENT：不支持位置参数

Question

I am using latest JDBC Driver from Google/Simba. I am getting this error when we have a secondary force index as well as with Query Parameter

Simba]SpannerJDBCDriver Error message from server: INVALID_ARGUMENT: Positional parameters are not supported

SELECT s.SingerId, s.FirstName, s.LastName
FROM Singers@{FORCE_INDEX=SingersByFirstLastName} AS s
WHERE s.FirstName = ?

Answer 1

Cloud Spanner's dialect of SQL does not support positional parameters. Parameters in Cloud Spanner's dialect of SQL are specified using a @ followed by an identifier, for eg

SELECT s.SingerId, s.FirstName, s.LastName
FROM Singers@{FORCE_INDEX=SingersByFirstLastName} AS s
WHERE s.FirstName = @first_name