Masashi M questions

Masashi M answers

• Redshift select * vs select single column
• How do I know the query_group of a query which was run?
• Amazon RedShift: Unique Column not being honored
• Is 'copy' command in Amazon RedShift atomic or not?
• Long runtime when query is executed the first time in RedShift
• Unsigned field in Amazon Redshift?
• Optimize large IN condition for Redshift query
• Querying JSON fields in Redshift
• Is there any way to find table creation date in redshift?
• Do refinements apply only to instance methods?