this is dead code since on 4.2 we're loading oid.rb from AR's Postgre's support
[mysql] core adapter compat - missing initialize_schema_migrations_table and helpers
[mysql] make sure new_column works - we now export a MySQL::Column constant
[mysql] fix new_column and move Column#initialize + introduce a AR42 constant
[postgres] export Column class (simplifies code and aligns with a "future" convention)
export Column classes for MSSQL and Oracle
[mysql] backport rename_index from Rails (corectly handling MariaDB as well)

https://github.com/rails/rails/commit/11338183265f759b07c8dffd526b92
ENV_JAVA (a Java::OrgJrubyJavaUtil::SystemPropertiesMap) does not like replace(arg1)
Fix string_to_time method missing error

- string_to_time method is removed from Rails.
- This can be fixed at native JDBC level to delegate the call to the
  respective column to emulate same behavior as ActiveRecord.
- This commit tries to fix the problem at Ruby level by emulating the
  ActiveRecord way at the Column class level.