Nick questions

Nick answers

• How to remove a postgresql user
• How to convert timestamp field to ISO 8601 string in a given time zone? [duplicate]
• Postgres - SQL query count by 2 columns
• Database "is being accessed by other users" error when using ThreadPoolExecutor with Django
• camelCase column in postgresql database in rails (ActiveRecord)
• Sum the “previous row” value with existing row value in a SELECT statement
• Slow on first query
• Postgres: Set fillfactor to 50?
• How to create a multi-column recommendation engine in postgresql?
• postgres query between yesterday at time and today at time