Defining Redshift Tables

The following properties are applicable to a Redshift Table object.

Tab

Property

Description

Additional Information

Redshift

 Temporary Table Specifies whether the table is a temporary table  
Owner Specifies the owner of the table  
Back Up Specifies whether the table should be included in automated and manual cluster snapshots  
Like Table Specifies an existing table from which the new table copies column names, data types, and NOT NULL constraints  
With Default Value Indicates whether the default expressions for the copied column definitions should be copied  

Redshift-External Table Options

Note: These properties are applicable only when the External Table check box is selected to set the table as a external table.

 Fields Terminated By Specifies the delimiter for fields  
Lines Terminated By Specifies the delimiter for lines  
Serde Name Specifies the SERDE format for the underlying data  
Stored As Specifies the file format for data files

Possible file formats are Parquet, RC File, Sequence File, Text File, ORC, and AVRO
Input Format Specifies the class name of the input format for text  
Output Format Specifies the class name of the output format for text  
Serde Properties Specifies the SERDE properties to be associated  
Location Specifies the path to the Amazon S3 bucket or folder that contains the data files or a manifest file that contains a list of Amazon S3 object paths  
Table Properties Specifies the clause that sets the table definition for table properties  

Sort Key

 Sort Type Specifies the sort style

Compound: Sorts data using a compound key that uses all the listed columns, in the order they are listed. Useful when the order of sort columns is important.

Interleaved: Sorts data using an interleaved sort key. Useful when the order of sort columns is not important.

Sort Key Columns Specifies one or more sort key columns for the table. When data is loaded into the table, the data is sorted by the columns that are designated as sort keys.  

Distribution

 Distribute Style Specifies the data distribution style for the whole table

Even: Distributes table data evenly across the nodes in the cluster in the round-robin manner

Key: Distributes table data according to the value in the distribution key column

All: Distributes a copy of the entire table to every node
Distribution Key Columns Specifies a column name or positional number for the distribution key  

Partitions

(Applicable only if the table is an external table)

 Partition Element Specifies the partition name and the physical data type for the partition element  
  Partition Specification Specifies partition specification and location once partition elements are created