H2 doesn't currently support adding an index AND a constraint in one SQL 
statement. H2 needs two statements, which would be 

alter table SAM_PUBLISHEDSECUREDIP_T
  add index FK1EDEA25B9482C945 (ASSESSMENTID)


and 

alter table SAM_PUBLISHEDSECUREDIP_T  add constraint FK1EDEA25B9482C945 foreign 
key (ASSESSMENTID) 
  references SAM_PUBLISHEDASSESSMENT_T (ID)

It would be nice if you can create a patch to fix this. I believe it would be 
relatively straight-forward once you get familiar with how H2 handles "alter 
table".




On Monday, 10 June 2013 15:02:31 UTC+2, Aaron Zeckoski wrote:
>
> I also posted this to stackoverflow since I wasn't sure which way of 
> asking questions like this is preferred.
>
> http://stackoverflow.com/questions/17024482/h2-database-unsuccessful-schema-statement-when-add-index-and-foreign-key-constra
>
> H2 does not appear to support the index/FK syntax generated by hibernate 
> for the MySQL5 dialects when using ;MODE=MYSQL and hibernate with a dialect 
> of org.hibernate.dialect.MySQL5Dialect.
>
> My goal here is to have one set of SQL scripts and use hibernate for the 
> ORM parts. Everything works fine in MySQL 5.5 but when I try to use H2 for 
> things like unit tests and starting up a demo version of my app I get 
> hundreds of failures from hibernate generated alter table statements as 
> shown below. Unfortunately, I have not been able to find a way to get 
> hibernate to change the way the statements are generated but that might be 
> an option as well. I tried using org.hibernate.dialect.H2Dialect but that 
> produces more severe errors so I don't think that will work.
>
> alter table SAM_PUBLISHEDSECUREDIP_T
>   add index FK1EDEA25B9482C945 (ASSESSMENTID), 
>   add constraint FK1EDEA25B9482C945 foreign key (ASSESSMENTID) 
>   references SAM_PUBLISHEDASSESSMENT_T (ID)
>
> Results in an error like this in H2:
>
> org.h2.jdbc.JdbcSQLException: Syntax error in SQL statement "ALTER TABLE 
> SAM_PUBLISHEDSECUREDIP_T ADD INDEX FK1EDEA25B9482C945 (ASSESSMENTID),[*] 
> ADD CONSTRAINT FK1EDEA25B9482C945 FOREIGN KEY (ASSESSMENTID) REFERENCES 
> SAM_PUBLISHEDASSESSMENT_T (ID) "; SQL statement: alter table 
> SAM_PUBLISHEDSECUREDIP_T add index FK1EDEA25B9482C945 (ASSESSMENTID), add 
> constraint FK1EDEA25B9482C945 foreign key (ASSESSMENTID) references 
> SAM_PUBLISHEDASSESSMENT_T (ID) [42000-172]
>
> NOTE: I am open to writing and providing a patch for H2 but I could use 
> some tips on where to look in that codebase.
>

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