From: | Grace Batumbya <grace(dot)batumbya(at)senecac(dot)on(dot)ca> |
---|---|
To: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | PostgreSQL JDBC: bytea column getMetaData().getColumns().getIn("COLUMN_SIZE") ~ 2GB |
Date: | 2011-07-12 16:10:56 |
Message-ID: | 4E1C7210.5040505@senecac.on.ca |
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Lists: | pgsql-jdbc |
Hi there,
I am using postgresql-9.0-801.jdbc3, on postgresql 9.0.4.
On a bytea column, getMetaData().getColumns().getIn("COLUMN_SIZE")
returns 2147483647 yet from asking around on #postgresql on irc, the
bytea has a limit just less than 1GB.
I did a bit of looking around in the jdbc driver and found this method
in: org.postgresql.jdbc2.TypeInfoCache
public int getPrecision(int oid, int typmod) {
oid = convertArrayToBaseOid(oid);
switch (oid) {
...
case Oid.TEXT:
case Oid.BYTEA:
default:
return _unknownLength;
}
}
Why then does jdbc return 2GB instead of 1GB?
--
*Grace Batumbya*
Research Assistant | Seneca CDOT
Phone: 416-491-5050 x3548
cdot.senecac.on.ca <http://cdot.senecac.on.ca/>
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