Updating identity column

Multiple temporary tables with the same name can exist at the same time in the same database if they are created in separate sessions because the tables are assigned to different schemas.

To be sure that the identity values are unique, Amazon Redshift skips a number of values when creating the identity values.The expression is used in any INSERT operation that does not specify a value for the column.If no default value is specified, the default value for the column is null.Note If you are creating a "wide table," take care that your list of columns does not exceed row-width boundaries for intermediate results during loads and query processing. MAX sets the maximum length to 4096 bytes for CHAR or 65535 bytes for VARCHAR.The following data types are supported: must match the data type of the column.

Leave a Reply