com.gpudb.protocol

Class AggregateKMeansRequest.Options

java.lang.Object

com.gpudb.protocol.AggregateKMeansRequest.Options

Enclosing class:

AggregateKMeansRequest

public static final class AggregateKMeansRequest.Options
extends Object

Optional parameters.

• WHITEN: When set to 1 each of the columns is first normalized by its stdv - default is not to whiten.
• MAX_ITERS: Number of times to try to hit the tolerance limit before giving up - default is 10.
• NUM_TRIES: Number of times to run the k-means algorithm with a different randomly selected starting points - helps avoid local minimum. Default is 1.
• CREATE_TEMP_TABLE: If true, a unique temporary table name will be generated in the sys_temp schema and used in place of result_table. If result_table_persist is false (or unspecified), then this is always allowed even if the caller does not have permission to create tables. The generated name is returned in qualified_result_table_name. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• RESULT_TABLE: The name of a table used to store the results, in [schema_name.]table_name format, using standard name resolution rules and meeting table naming criteria. If this option is specified, the results are not returned in the response.
• RESULT_TABLE_PERSIST: If true, then the result table specified in result_table will be persisted and will not expire unless a ttl is specified. If false, then the result table will be an in-memory table and will expire unless a ttl is specified otherwise. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• TTL: Sets the TTL of the table specified in result_table.

The default value is an empty Map. A set of string constants for the parameter options.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CREATE_TEMP_TABLE If true, a unique temporary table name will be generated in the sys_temp schema and used in place of result_table.
static String	FALSE
static String	MAX_ITERS Number of times to try to hit the tolerance limit before giving up - default is 10.
static String	NUM_TRIES Number of times to run the k-means algorithm with a different randomly selected starting points - helps avoid local minimum.
static String	RESULT_TABLE The name of a table used to store the results, in [schema_name.]table_name format, using standard	static String	RESULT_TABLE_PERSIST If true, then the result table specified in result_table will be persisted and will not expire unless a ttl is specified.
static String	TRUE
static String	TTL Sets the	static String	WHITEN When set to 1 each of the columns is first normalized by its stdv - default is not to whiten.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

WHITEN

public static final String WHITEN

When set to 1 each of the columns is first normalized by its stdv - default is not to whiten.

See Also:

Constant Field Values

MAX_ITERS

public static final String MAX_ITERS

Number of times to try to hit the tolerance limit before giving up - default is 10.

See Also:

Constant Field Values

NUM_TRIES

public static final String NUM_TRIES

Number of times to run the k-means algorithm with a different randomly selected starting points - helps avoid local minimum. Default is 1.

See Also:

Constant Field Values

CREATE_TEMP_TABLE

public static final String CREATE_TEMP_TABLE

If true, a unique temporary table name will be generated in the sys_temp schema and used in place of result_table. If result_table_persist is false (or unspecified), then this is always allowed even if the caller does not have permission to create tables. The generated name is returned in qualified_result_table_name. Supported values:

• TRUE
• FALSE

The default value is FALSE.

See Also:

Constant Field Values

TRUE

public static final String TRUE

See Also:

Constant Field Values

FALSE

public static final String FALSE

See Also:

Constant Field Values

RESULT_TABLE

public static final String RESULT_TABLE

The name of a table used to store the results, in [schema_name.]table_name format, using standard name resolution rules and meeting table naming criteria. If this option is specified, the results are not returned in the response.

See Also:

Constant Field Values

RESULT_TABLE_PERSIST

public static final String RESULT_TABLE_PERSIST

If true, then the result table specified in result_table will be persisted and will not expire unless a ttl is specified. If false, then the result table will be an in-memory table and will expire unless a ttl is specified otherwise. Supported values:

• TRUE
• FALSE

The default value is FALSE.

See Also:

Constant Field Values

TTL

public static final String TTL

Sets the TTL of the table specified in result_table.

See Also:

Constant Field Values