Re: JDBC Array Support, Take III

Your patch has been added to the PostgreSQL unapplied patches list at:

http://candle.pha.pa.us/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

> Greetings again.
>
> Thanks for your feedback (and patience). Enclosed is my third
> attempt at a patch to 7.1.2 to support Array.
>
> [I think I've solved the mangled patch problem. Hotmail seems to
> try to format the text file, so gzipping it should solve this
> problem.]
>
> In this patch I've incorporated Barry's feedback. Specifically:
>
> 1) OIDs are no longer hard-coded into Array.java. In order to
> support this change I added a getOID(String) method to Field.java
> which receives a PostgreSQL field type and returns a value from
> java.sql.Types. I couldn't get away from using OIDs altogether
> because the JDBC spec for Array specifies that some methods return
> a ResultSet. This requires I construct Field objects,
> which means I need OIDs. At least this approach doesn't hard
> code these values. A Hashtable cache has been added to Field
> so that an SQL lookup isn't necessary (following the model already
> in Field.java).
>
> 2) Rewired the base formatting code in ResultSet.java to use 'to'
> methods, which are then exposed as static methods in ResultSet.
> These methods are used in Array to format the data without
> duplications in the code.
>
> 3) Artifact call to first() in ResultSet.getArray() removed.
>
> Patching as before: (gunzip first this time)
>
> >cd <PGSQL_SRC_PATH>/src/interfaces/jdbc/org/postgresql
> >patch -p1 < $PATH_TO_PATCH/patch
> >cd <PGSQL_SRC_PATH>
> >make
>
> Let me know if I'm getting closer to something useful.
>
> Take care.
> Greg
>
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--
Bruce Momjian | http://candle.pha.pa.us
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