Re: [HACKERS] ECPG ignores SAVEPOINT if first statement of a transaction

Would someone on the interface list look for a fix to this? Thanks.

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Michael Fuhr wrote:
> ECPG ignores SAVEPOINT if it's the first statement of a transaction:
>
> % cat foo.pgc
> int
> main(void)
> {
> EXEC SQL WHENEVER SQLERROR SQLPRINT;
> EXEC SQL WHENEVER SQLWARNING SQLPRINT;
>
> EXEC SQL CONNECT TO test;
>
> EXEC SQL SAVEPOINT foo;
> EXEC SQL DROP TABLE nosuch_1;
> EXEC SQL ROLLBACK TO foo;
> EXEC SQL DROP TABLE nosuch_2;
>
> EXEC SQL COMMIT;
> EXEC SQL DISCONNECT;
>
> return 0;
> }
>
> % ./foo
> sql error 'table "nosuch_1" does not exist' in line 10.
> sql error 'current transaction is aborted, commands ignored until end of transa
>
> The SAVEPOINT code is generated but apparently ECPGtrans() doesn't
> execute it. A sniff of the connection doesn't show it, and the
> sniff shows the ROLLBACK TO failing with "no such savepoint."
>
> If I execute a command before the SAVEPOINT then I get the following,
> which is what I was expecting:
>
> % ./foo
> sql error 'table "nosuch_1" does not exist' in line 11.
> sql error 'table "nosuch_2" does not exist' in line 13.
>
> A sniff of this connection shows both the SAVEPOINT and ROLLBACK TO
> being executed and succeeding.
>
> --
> Michael Fuhr
> http://www.fuhr.org/~mfuhr/
>
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>

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