Re: jdbc refuses to pass array argument using ARRAY[...] syntax

[Kris Jurka <books(at)ejurka(dot)com>]

On Sat, 7 Feb 2009, Hannu Krosing wrote:

> org.postgresql.util.PSQLException: org.postgresql.util.PSQLException:
> ERROR: array value must start with "{" or dimension information

This is a server error message, not a JDBC driver message.

> and yes, the full query string returned from myPrepared
> Statement.toString() is valid SQL and does produce desired results when
> I paste it in psql, so the problem is very likely overly paranoid checks
> in PG jdbc driver.
>
> m3=# select * from mytypearrayfunc( 1, ARRAY[
> m3(# ROW(7,'{5,6,7}','{4}')::mytype,
> m3(# ROW(2,'{2}','{3,4}')::mytype,
> m3(# ROW(1,'{1}','{}')::mytype
> m3(# ] )

Since you're using a prepared statement, this isn't the same thing.  The 
equivalent is really:

PREPARE myplan ( mytype[] ) AS SELECT * FROM 
mytypearraryfunc($1);

EXECUTE myplan ( 'ARRAY[..]'::mytype[] );

ARRAY is a grammar construct and cannot be part of the parameter.

Kris Jurka