[ http://issues.apache.org/jira/browse/DERBY-1669?page=all ]
Andrew McIntyre updated DERBY-1669:
-----------------------------------
Component/s: JDBC
> DatabaseMetaData.getIndexInfo() does not differentiate between generated and
> real indexes
> -----------------------------------------------------------------------------------------
>
> Key: DERBY-1669
> URL: http://issues.apache.org/jira/browse/DERBY-1669
> Project: Derby
> Issue Type: Bug
> Components: JDBC
> Affects Versions: 10.1.3.1
> Environment: Windows 2003 Server
> Reporter: Jorg Janke
>
> In Derby, I cannot distinguish what a "real" index is - all have TYPE=3 (=
> other) - all other databases distinguishes correctly between Type=0
> (statistic) and TYPE=1 (normal). It is easy to be replicated with any table
> with a PK and an index. Derby lists the internal indexes for supporting
> constraints (name starting with SQL...) and the real indexes without making a
> difference.
> Example:
> CREATE TABLE AD_COLUMN
> (
> AD_COLUMN_ID DECIMAL(10) NOT NULL
> )
> /
> ALTER TABLE AD_COLUMN
> ADD CONSTRAINT AD_COLUMN_KEY
> PRIMARY KEY (AD_COLUMN_ID)
> /
> CREATE TABLE AD_ACCESSLOG
> (
> AD_ACCESSLOG_ID DECIMAL(10) NOT NULL,
> AD_CLIENT_ID DECIMAL(10) NOT NULL,
> AD_COLUMN_ID DECIMAL(10) NULL,
> CONSTRAINT ADCOLUMN_ADACCESSLOG
> FOREIGN KEY (AD_COLUMN_ID)
> REFERENCES AD_COLUMN (AD_COLUMN_ID),
> )
> /
> CREATE INDEX AD_ACCESSLOGTEST
> ON AD_ACCESSLOG(AD_CLIENT_ID)
> /
> ALTER TABLE AD_ACCESSLOG
> ADD CONSTRAINT AD_ACCESSLOG_KEY
> PRIMARY KEY (AD_ACCESSLOG_ID)
> /
> Dump pf the ResultSet of DatabaseMetaData.getIndexInfo()
> 0: , TABLE_CAT=, TABLE_SCHEM=COMPIERE,
> TABLE_NAME=AD_ACCESSLOG, NON_UNIQUE=0, INDEX_QUALIFIER=,
> INDEX_NAME=SQL060709062929330, TYPE=3, ORDINAL_POSITION=1,
> COLUMN_NAME=AD_ACCESSLOG_ID, ASC_OR_DESC=A, CARDINALITY=null,
> PAGES=null, FILTER_CONDITION=null
> 1: , TABLE_CAT=, TABLE_SCHEM=COMPIERE,
> TABLE_NAME=AD_ACCESSLOG, NON_UNIQUE=1, INDEX_QUALIFIER=,
> INDEX_NAME=AD_ACCESSLOGTEST, TYPE=3, ORDINAL_POSITION=1,
> COLUMN_NAME=AD_CLIENT_ID, ASC_OR_DESC=A, CARDINALITY=null,
> PAGES=null, FILTER_CONDITION=null
> 2: , TABLE_CAT=, TABLE_SCHEM=COMPIERE,
> TABLE_NAME=AD_ACCESSLOG, NON_UNIQUE=1, INDEX_QUALIFIER=,
> INDEX_NAME=SQL060716064852400, TYPE=3, ORDINAL_POSITION=1,
> COLUMN_NAME=AD_COLUMN_ID, ASC_OR_DESC=A, CARDINALITY=null,
> PAGES=null, FILTER_CONDITION=null
> Row #0 is the Primary Key
> Row #2 is the Index
> Row #3 is the Foreign Key
> Issue: I cannot distinguish what a "real" index is - all have TYPE=3 (=
> other) - other databases distiguish correctly between
> Type=0 (statistic) and TYPE=1 (normal)
> The bug: Row #1 should have TYPE=1
> Unfortunately this puts our project to make Compiere available on Derby on
> hold.
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