hsqldb:奇怪的“唯一约束或索引冲突”,从csv读取数据

我有一个工具可以读取一个csv文件,使用hsqldb从中进行选择,并将结果保存为另一个csv文件。这里更多: http://ondra.zizka.cz/stranky/programovani/java/apps/CsvCruncher-csv-manipulation-sql.texy

现在,当我把它用于某项任务时,我得到了:

java -jar CsvCruncher-1.0.jar result.csv foo.csv 'SELECT * FROM indata'

INFO:   SQL: CREATE TEXT TABLE indata ( xrelease VARCHAR(255), xtype VARCHAR(255), xartifact VARCHAR(255), xversion VARCHAR(255) )
INFO:   SQL: CREATE TEXT TABLE output ( XRELEASE VARCHAR(255), XTYPE VARCHAR(255), XARTIFACT VARCHAR(255), XVERSION VARCHAR(255) )
INFO:   User's SQL: INSERT INTO output (SELECT * FROM indata)
INFO: Database closed
Exception in thread "main" java.sql.SQLException: integrity constraint violation: unique constraint or index violation: SYS_IDX_10027
    at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(Unknown Source)
    at org.hsqldb.jdbc.JDBCPreparedStatement.executeUpdate(Unknown Source)
    at org.jboss.qa.cvscruncher.Cruncher.crunch(Cruncher.java:187)
    at org.jboss.qa.cvscruncher.App.main(App.java:26)
    at Crunch.main(Crunch.java:9)
Caused by: org.hsqldb.HsqlException: integrity constraint violation: unique constraint or index violation: SYS_IDX_10027
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.index.IndexAVL.insert(Unknown Source)
    at org.hsqldb.persist.RowStoreAVLDiskData.indexRow(Unknown Source)
    at org.hsqldb.Table.insertSingleRow(Unknown Source)
    at org.hsqldb.StatementDML.insertRowSet(Unknown Source)
    at org.hsqldb.StatementInsert.getResult(Unknown Source)
    at org.hsqldb.StatementDMQL.execute(Unknown Source)
    at org.hsqldb.Session.executeCompiledStatement(Unknown Source)
    at org.hsqldb.Session.execute(Unknown Source)
    ... 5 more

从日志中可以看到,没有创建索引,至少没有明确地创建索引。我试图在hsqldb的手册中找到一些自动创建的约束,但没有找到。

当我只做 SELECT 1 FROM indata 很好。所以我想这是数据本身的问题。对于这种情况,它们是: http://pastebin.com/8QiY2HXx ( x 以防止关键字冲突)。

更新:

当我转储从csv读取的数据时,有点奇怪:

 -------
 XRELEASE: 5.1.0-SNAPSHOT
 XTYPE: DEP
 XARTIFACT: org.apache.maven:maven-ant-tasks
5XVERSION: 2.0.9
 -------
 XRELEASE: 5.1.0-SNAPSHOT
 XTYPE: DEP
 XARTIFACT: org.jboss.seam.integration:jboss-seam-int-microcontainer
5XVERSION: 5.1.0.CR1
 -------
 XRELEASE: 5.1.0-SNAPSHOT
 XTYPE: DEP
 XARTIFACT: org.jboss.seam.integration:jboss-seam-int-jbossas
5XVERSION: 5.1.0.CR1
 -------
...

看起来像 xversion 以某种方式修改列。 代码很简单 System.out.println(" "+ metaData.getColumnLabel(i) + ": "+ rs.getObject(i) );

你知道是什么引起的吗?

谢谢,Ondra