magnus questions

• How do key/value stores manage concurrency?
• Does PostgreSQL have a mechanism to update the same row multiple times in a single query?
• Dynamic arrays and memory management in Delphi
• Why is my {$IFDEF DEBUG} conditional not working in Delphi?
• Why do sagas (aka, process managers) contain an internal state and why are they persisted to the event store?
• Does Delphi's conditional compilation allow the defined symbols to contain values?
• What is the best approach for wrapping an STL container in a custom iterator?
• What are the Delphi design principles behind class instances and pointers?
• Is there a performance penalty in accessing the Windows API through Delphi?
• Why can't sagas query the read side?

magnus answers