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

On Sat, 2009-02-07 at 11:28 -0500, Kris Jurka wrote:
>
> 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.

weird, since this works too

m3=# prepare myplan(mytype[]) as SELECT * FROM mytypearraryfunc(1,$1);
PREPARE
m3=# execute myplan(ARRAY[
m3(# ROW(10, '{1,2,3}','{7,8,9}')::mytype,
m3(# ROW(11, '{1}','{3,4,5,6,7}')::mytype,
m3(# ROW(10, '{}','{7}')::mytype
m3(# ]);
status | file_id | delete_heirs | add_heirs
--------+---------+--------------+-------------
200 | 10 | {1,2,3} | {7,8,9}
200 | 11 | {1} | {3,4,5,6,7}
200 | 10 | {} | {7}
(3 rows)
m3=#

> Kris Jurka
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Hannu Krosing http://www.2ndQuadrant.com
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