Updating identity column

The temporary table can have the same name as a permanent table.

The temporary table is created in a separate, session-specific schema.

Optionally, the table name can be qualified with the database and schema name. If a schema name is given, the new table is created in that schema (assuming the creator has access to the schema).

The table name must be a unique name for that schema.

The maximum number of columns you can define in a single table is 1,600.

For more information about valid names, see Names and Identifiers. For CHAR and VARCHAR columns, you can use the MAX keyword instead of declaring a maximum length.

Amazon Redshift enforces a limit of 9,900 tables per cluster, including user-defined temporary tables and temporary tables created by Amazon Redshift during query processing or system maintenance.With a COPY operation, the data is loaded in parallel and distributed to the node slices.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.

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