Re: Power Architect data type IDENTITY ????

2011-12-13 Thread ulim
I am modelling my H2 database (23 tables at the moment) with MySQL Workbench. While that application generates MySQL-specific syntax, it is not very hard to replace that with something ANSI-like that H2 understands. Obviously, this does not work for roundtrip-style development, but it is suffic

Concurrent access with FILE_LOCK=SERIALIZED

2011-12-13 Thread LRichard
Hello, We get the following exception when stressing a database from two different processes with FILE_LOCK=SERIALIZED Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not get next sequence value at org.hibernate

Re: Prealloc database file at specific size

2011-12-13 Thread vrotaru...@gmail.com
On Tue, Dec 13, 2011 at 6:18 PM, Marco Biancini wrote: > In order to be more protected against a file system full condition, is > it possible to pre-alloc the db file at specific size ? > > My guess that this is impossible, if H2 is using the standard file API. A workaround would be to create a di

Re: Index is not used in simple select query

2011-12-13 Thread Noel Grandin
H2 does not support index only scans yet On Tuesday, 13 December 2011, Michael wrote: > Hi, > > I have the following table with index on 'resource_id': > > CREATE TABLE IF NOT EXISTS sw_stream_resource_assoc( >data_id INT NOT NULL, >resource_id VARCHAR NOT NULL, >FOREIGN K

Prealloc database file at specific size

2011-12-13 Thread Marco Biancini
In order to be more protected against a file system full condition, is it possible to pre-alloc the db file at specific size ? Thanks regard, Marco -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To post to this group, send email to h2-database

Re: H2 AIOOOBE when connecting to H2 after forcible termination

2011-12-13 Thread Atul Chowdhury
Hi Thomas - I will reply with some more detail but briefly, - No DEFRAG or SHUTDOWN flags are set - The error appears usually after "javaw" (used to spawn H2) is forcefully terminated (Windows Task Manager -> End process) - We start the server like this: -Xmx512m -Xrs -cp h2-1.3.158.jar;ikfx.ja

Re: Query executed in memory is taking more time than when not executed in memory

2011-12-13 Thread Vinod
I do not think there is a bug in the code. Either it is an H2 issue or some H2 configuration. On Dec 12, 12:15 pm, Noel Grandin wrote: > Since it happens with both imdb and h2, it is most likely a bug in your code > > > > > > > > > > On Monday, 12 December 2011, Vinod wrote: > > I wonder why nob

Index is not used in simple select query

2011-12-13 Thread Michael
Hi, I have the following table with index on 'resource_id': CREATE TABLE IF NOT EXISTS sw_stream_resource_assoc( data_id INT NOT NULL, resource_id VARCHAR NOT NULL, FOREIGN KEY(data_id) REFERENCES sw_stream_data(id) ON UPDATE CASCADE ON DELETE CASCADE, FOREIGN KEY(

h2.ModifyOnWrite and TestFileLockSerialized

2011-12-13 Thread LRichard
Hello, When I run the H2 unit tests TestFileLockSerialized with property h2.ModifyOnWrite set to true, the testTwoWriters test takes quite a lot of time (I killed it after about two hours). I'm wondering if there might not be an interlock. The main thread is hung on the "drop table test" statem