I don't need local sorting, I only had to retrieve some objects from db belongs to user.
A this point is it better unlogged tables or postgres object arrays?
Il 06/feb/2014 09:35 "alexandros_e [via PostgreSQL]" <
[hidden email]> ha scritto:
@mephysto I think you are trying to solve the wrong type of problem. Creation of tables (temporary or not) are not supposed to run concurrently. So, this is not an issue of PostgreSQL but design. There are two ways to solve the problem.
a) You could use the sessionID (provided The Glassfish server) to create unique names for the temporary table, if the temporary table is unique per session. If not, since you are talking about multiplayer game the temporary table name could include the userID, so it is unique per user. In that sense, it could be persistent per user, or temporary depending on your needs. In that case you will need EXECUTE command to CREATE the table in your pgsql code, since the table name must be a variable in your functions.
b) I highly suspect that this temporary table is used for either caching or local sorting / ordering. In this case Postgres is again the wrong tool. You can use an embedded DB like SQLite, HSQLDB for the local database which may be used for this type of operations, which 'syncs' to the global PostgreSQL DB when connecting or disconnecting. Every client will have a separate copy of this DB, so no overhead to the server.
Either way you will have solved your issue.
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