Andrus Adamchik updated CAY-1052:
---------------------------------
Affects Version/s: (was: 3.0)
Just realized that this is another consequence of CAY-672 issue that has been fixed in 3.0 for some time. It still remains an issue in 2.0 and 1.2. Let me apply the fix to those.
> Invalid cast on NUMERICs with scale of 0 using Postgres JDBC 8.2+
> -----------------------------------------------------------------
>
> Key: CAY-1052
> URL: https://issues.apache.org/cayenne/browse/CAY-1052
> Project: Cayenne
> Issue Type: Bug
> Components: Cayenne Core Library
> Affects Versions: 1.2 [STABLE], 2.0 [STABLE]
> Environment: All
> Reporter: Dave Dombrosky
> Assignee: Andrus Adamchik
>
> A change was recently made in the Postgres JDBC driver, versions 8.2 and up, that makes some of the Cayenne code do the wrong thing now.
> In the TypesMapping class, there is the following code:
> if (type == Types.NUMERIC && precision == 0) {
> type = Types.INTEGER;
> }
> This code no longer works right on the newer drivers because the behavior of the ResultSetMetaData.getScale() method was changed. It used to return "-1" for NUMERICs where it could not determine the scale, but now it returns "0". So values with decimal information are being truncated to integers. Please reference the following thread for more detail on the return value change: http://groups.google.com/group/pgsql.interfaces.jdbc/browse_thread/thread/ee82d41155147672
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