BUG #7917: Error while migrating data

The following bug has been logged on the website:

Bug reference: 7917
Logged by: Renjith
Email address: renjith(dot)pt(at)galfar(dot)com
PostgreSQL version: 9.1.0
Operating system: Centos
Description:

I using one application alfresco with postgresql 9.1. it throws error once
data is migrated from another postgresql 9.1 database. kindly suggest your
solution.

log details

[org.springframework.extensions.webscripts.AbstractRuntime] Exception from
executeScript - redirecting to status template error: SqlMapClient
operation; SQL [];
--- The error occurred in
alfresco/ibatis/#resource.dialect#/avm-common-SqlMap.xml.
--- The error occurred while applying a parameter map.
--- Check the alfresco.avm.parameter_IdPatternMap.
--- Check the statement (query failed).
--- Cause: org.postgresql.util.PSQLException: ERROR: invalid escape string
Hint: Escape string must be empty or one character.; nested exception is
com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in
alfresco/ibatis/#resource.dialect#/avm-common-SqlMap.xml.
--- The error occurred while applying a parameter map.
--- Check the alfresco.avm.parameter_IdPatternMap.
--- Check the statement (query failed).
--- Cause: org.postgresql.util.PSQLException: ERROR: invalid escape string
Hint: Escape string must be empty or one character.