モジュール追加時に
DB2エラーがでるのですが、サーバー側の設定でどのあたりを
設定してよいかわかりません。
エラー内容は下記です。

SQL: INSERT INTO dtb_sale(sale_id,name,category,division,value,start_date,end_date,status,comment) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9)

MDB2 Error: unknown error

_doQuery: [Error message: Could not execute statement]
[Last executed query: EXECUTE mdb2_statement_pgsql_4da998068f6beff21d1f0b56c95bed3d2b22884e4 ('', 'テスト', '1', '1', '20', '2012/3/24', '2012/4/24', '1', NULL)]
[Native message: ERROR: 型integerの入力構文が無効です: ""
行 1: ...t_pgsql_4da998068f6beff21d1f0b56c95bed3d2b22884e4 ('', 'テス...
^]


/var/www/html/test/eccube/html/admin/products/sale.php 34:LC_Page_Admin_Products_Sale_Ex->process
/var/www/html/test/eccube/data/class_extends/page_extends/admin/products/LC_Page_Admin_Products_Sale_Ex.php 55:LC_Page_Admin_Products_Sale->process
/var/www/html/test/eccube/data/class/pages/admin/products/LC_Page_Admin_Products_Sale.php 76:LC_Page_Admin_Products_Sale->action
/var/www/html/test/eccube/data/class/pages/admin/products/LC_Page_Admin_Products_Sale.php 118:LC_Page_Admin_Products_Sale->lfInsertSale
/var/www/html/test/eccube/data/class/pages/admin/products/LC_Page_Admin_Products_Sale.php 235:SC_Query->insert
/var/www/html/test/eccube/data/class/SC_Query.php 478:SC_Query->query
/var/www/html/test/eccube/data/class/SC_Query.php 735:SC_Query->execute
/var/www/html/test/eccube/data/class/SC_Query.php 888:MDB2_Statement_Common->execute
/var/www/html/test/eccube/data/module/MDB2.php 4152:MDB2_Statement_pgsql->_execute
/var/www/html/test/eccube/data/module/MDB2/Driver/pgsql.php 1474:MDB2_Driver_pgsql->_doQuery
/var/www/html/test/eccube/data/module/MDB2/Driver/pgsql.php 673:MDB2_Driver_Common->raiseError
/var/www/html/test/eccube/data/module/MDB2.php 1497:PEAR->raiseError
/var/www/html/test/eccube/data/module/PEAR.php 557:MDB2_Error->MDB2_Error
/var/www/html/test/eccube/data/module/MDB2.php 1009:PEAR_Error->PEAR_Error