Re: - Mailing list pgsql-jdbc

Two things that you might check for, but I think your problem is number 2.

1- Is the ResultSet updateable? Basically you create your Statement like this:

stmt=conn.createStatement
(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE)
2- Does your table have a oid and a primary key defined? Are you
selecting them in the ?  You need to select those two (or at least
one, I'm not sure) in the ResultSet to be able to insert.  Just do a
"SELECT * FROM table.schema LIMIT 1" to be sure

On 1/12/07, vasylenko@uksatse.org.ua <vasylenko@uksatse.org.ua> wrote:
>
>
>
> Ok, Dave
> your question:
> >Can you explain this more, or send a small test case. There should be
> >no reason to get a primary key simply to move to insert row.
> >We do need the primary key in the dataset, but other than that we
> >shouldn't fail on move to insert row ?
>
> I have just trased into moveToInsertRow() method step by step.
>
> Firstly, it try to find oid field in result set
> Than it looking for Primary Key in result.
>
> That's all what I have done.
>
> there 3 method
> moveToInsertRow()
> checkUpdateblet()
> isUpdateable()
>
> the exception is thrown in the last method.
>
>
> public synchronized void moveToInsertRow()
>   throws SQLException
>   {
>   checkUpdateable();
>
>   if (insertStatement != null)
>   {
>   insertStatement = null;
>   }
>
>
>   // make sure the underlying data is null
>   clearRowBuffer(false);
>
>   onInsertRow = true;
>   doingUpdates = false;
>
>   }
>
>
>
> private void checkUpdateable() throws SQLException
>   {
>   checkClosed();
>
>   if (!isUpdateable())
>   throw new PSQLException(GT.tr("ResultSet is not updateable.
> The query that generated this result set must select only one table, and
> must select all primary keys from that table. See the JDBC 2.1 API
> Specification, section 5.6 for more details."),
>   PSQLState.INVALID_CURSOR_STATE);
>
>   if (updateValues == null)
>   {
>   // allow every column to be updated without a rehash.
>   updateValues = new HashMap((int)(fields.length / 0.75), 0.75f);
>   }
>   }
>
>
>
>
>
>
> boolean isUpdateable() throws SQLException
>   {
>   checkClosed();
>
>   if (resultsetconcurrency == ResultSet.CONCUR_READ_ONLY)
>   throw new PSQLException(GT.tr("ResultSets with concurrency
> CONCUR_READ_ONLY cannot be updated."),
>   PSQLState.INVALID_CURSOR_STATE);
>
>   if (updateable)
>   return true;
>
>   if ( Driver.logDebug )
>   Driver.debug("checking if rs is updateable");
>
>   parseQuery();
>
>   if ( singleTable == false )
>   {
>   if ( Driver.logDebug )
>   Driver.debug("not a single table");
>   return false;
>   }
>
>   if ( Driver.logDebug )
>   Driver.debug("getting primary keys");
>
>   //
>   // Contains the primary key?
>   //
>
>   primaryKeys = new Vector();
>
>   // this is not stricty jdbc spec, but it will make things much
> faster if used
>   // the user has to select oid, * from table and then we will just
> use oid
>
>
>   usingOID = false;
>   int oidIndex = 0;
>   try
>   {
>   oidIndex = findColumn( "oid" );
>   }
>   catch (SQLException l_se)
>   {
>   //Ignore if column oid isn't selected
>   }
>   int i = 0;
>
>
>   // if we find the oid then just use it
>
>   //oidIndex will be >0 if the oid was in the select list
>   if ( oidIndex > 0 )
>   {
>   i++;
>   primaryKeys.add( new PrimaryKey( oidIndex, "oid" ) );
>   usingOID = true;
>   }
>   else
>   {
>   // otherwise go and get the primary keys and create a hashtable
> of keys
>   String[] s = quotelessTableName(tableName);
>   String quotelessTableName = s[0];
>   String quotelessSchemaName = s[1];
>   java.sql.ResultSet rs = ((java.sql.Connection)
> connection).getMetaData().getPrimaryKeys("", quotelessSchemaName,
> quotelessTableName);
>   for (; rs.next(); i++ )
>   {
>   String columnName = rs.getString(4); // get the columnName
>   int index = findColumn( columnName );
>
>   if ( index > 0 )
>   {
>   primaryKeys.add( new PrimaryKey(index, columnName ) );
> // get the primary key information
>   }
>   }
>
>   rs.close();
>   }
>
>   if ( Driver.logDebug )
>   Driver.debug( "no of keys=" + i );
>
>   if ( i < 1 )
>   {
>   throw new PSQLException(GT.tr("No primary key found for table
> {0}.", tableName),
>   PSQLState.DATA_ERROR);
>   }
>
>   updateable = primaryKeys.size() > 0;
>
>   if ( Driver.logDebug )
>   Driver.debug( "checking primary key " + updateable );
>
>   return updateable;
>   }
>
>
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