ResultSetMetaData.getScale returns inconsistent values for DOUBLE type.
-----------------------------------------------------------------------
Key: DERBY-853
URL: http://issues.apache.org/jira/browse/DERBY-853
Project: Derby
Type: Bug
Components: JDBC, Newcomer
Versions: 10.2.0.0
Reporter: Daniel John Debrunner
Priority: Trivial
If a DOUBLE column is returned in the result set then getScale() returns 0.
If a DOUBLE expression is returned and the expression is the result of a DOUBLE
combined with a DECIMAL then it seems the scale from the decimal sometimes
affects the result set metadata.
E.g. DECIMAL(10,2) - DOUBLE returns a DOUBLE with getScale() returning 2.
See the test output for jdbcapi/metadata.java
double -- precision: 15 scale: 0 display size: 22 type name: DOUBLE
double precision - dec(10,2) -- precision: 15 scale: 0 display size: 22 type
name: DOUBLE
dec(10,2) - double precision -- precision: 15 scale: 2 display size: 22 type
name: DOUBLE
First line is a DOUBLE column, second is DOUBLE - DECIMAL, third is DECIMAL -
DOUBLE
I assume the scale should always be zero for a DOUBLE, as it holds no meaning,
but I can't see any proof of that in JDBC spec, javadoc or tutorial book.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
http://www.atlassian.com/software/jira
