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Posted to derby-dev@db.apache.org by "Mamta A. Satoor (JIRA)" <ji...@apache.org> on 2008/04/29 20:21:56 UTC
[jira] Updated: (DERBY-3651) Current
DataTypeDescriptor.comparable() is subset of SQL spec. Enhance it to fully
implement SQL spec
[ https://issues.apache.org/jira/browse/DERBY-3651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mamta A. Satoor updated DERBY-3651:
-----------------------------------
Description:
Collation functionality(DERBY-1478) was implemented in 10.3 The functionality in 10.3 and 10.4 currently has DataTypeDescriptor.comparable() implement subset of SQL standard. More info on this can be found in DERBY-2876 and other related task is DERBY-2875.
The current implementation of comparable requires that collation type *and* derivation must match for the types to be comparable. According to SQL Standard 9.13, e.g. with non-matching types and one derivation of implicit and one of none, then the types are comparable.
was:
Collation functionality was implemented in 10.3 The functionality in 10.3 and 10.4 currently has DataTypeDescriptor.comparable() implement subset of SQL standard. More info on this can be found in DERBY-2876 and other related task is DERBY-2875.
The current implementation of comparable requires that collation type *and* derivation must match for the types to be comparable. According to SQL Standard 9.13, e.g. with non-matching types and one derivation of implicit and one of none, then the types are comparable.
> Current DataTypeDescriptor.comparable() is subset of SQL spec. Enhance it to fully implement SQL spec
> -----------------------------------------------------------------------------------------------------
>
> Key: DERBY-3651
> URL: https://issues.apache.org/jira/browse/DERBY-3651
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Reporter: Mamta A. Satoor
>
> Collation functionality(DERBY-1478) was implemented in 10.3 The functionality in 10.3 and 10.4 currently has DataTypeDescriptor.comparable() implement subset of SQL standard. More info on this can be found in DERBY-2876 and other related task is DERBY-2875.
> The current implementation of comparable requires that collation type *and* derivation must match for the types to be comparable. According to SQL Standard 9.13, e.g. with non-matching types and one derivation of implicit and one of none, then the types are comparable.
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