First implementation of PostgreSQLStore.
Minor changes.
Bugs have been fixed in PostgreSQLStore and tests.
Fields have been resized.
PostgreSQLStore and its tests have been improved.
Minor changes.
Integrity check-up has been implemented in PostgreSQLStore.
Improvements on PostgreSQLStore.
Support for asynchronous commands in PostgreSQLStore.
COPY command is now used for bulk insertions in PostgreSQLStore.
The COPY command is now being prepared.