Migrate Mysql to postgresql database issue

Hi PGSQL Team,

I migrate mysql databse to postgresql database but I face the following
issues while inserting or fetching data when I connect and run my existing
PHP YII framework application with postgresql database:
(1) NOT NULL constraint violation for most of the columns
(2) unserialize error offset when serialize/unserialize data. Even the
column type I altered as bytea from text.

Please suggest appropriate solution or some useful resources having migrate
database information and issues.

Best Regards
Gaurav Agrawal

--

************************************************************************

*This e-mail and all attachments are intended solely for use by the
intended recipient and may contain confidential / proprietary information
of KiwiTech, LLC, subject to important disclaimers and conditions including
restrictions on the use, disclosure, transfer or export of such
information.* *If you have received this message in error or are not the
named recipient(s), please immediately notify the sender at the telephone
number stated above or by reply e-mail and delete this e-mail from your
computer*