com.gpudb.protocol

Class AggregateUniqueRequest.Options

java.lang.Object

com.gpudb.protocol.AggregateUniqueRequest.Options

Enclosing class:

AggregateUniqueRequest

public static final class AggregateUniqueRequest.Options
extends Object

Optional parameters.

• COLLECTION_NAME: Name of a collection which is to contain the table specified in result_table. If the collection provided is non-existent, the collection will be automatically created. If empty, then the table will be a top-level table. Additionally this option is invalid if tableName is a collection.
• EXPRESSION: Optional filter expression to apply to the table.
• SORT_ORDER: String indicating how the returned values should be sorted. Supported values:
  • ASCENDING
  • DESCENDING
  The default value is ASCENDING.
• RESULT_TABLE: The name of the table used to store the results. If present, no results are returned in the response. Has the same naming restrictions as tables. Not available if tableName is a collection or when columnName is an unrestricted-length 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.
• RESULT_TABLE_FORCE_REPLICATED: Force the result table to be replicated (ignores any sharding). Must be used in combination with the result_table option.
• RESULT_TABLE_GENERATE_PK: If 'true' then set a primary key for the result table. Must be used in combination with the result_table option.
• TTL: Sets the TTL of the table specified in result_table.
• CHUNK_SIZE: Indicates the chunk size to be used for the result table. Must be used in combination with the result_table option.

A set of string constants for the parameter options.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ASCENDING
static String	CHUNK_SIZE Indicates the chunk size to be used for the result table.
static String	COLLECTION_NAME Name of a collection which is to contain the table specified in result_table.
static String	DESCENDING
static String	EXPRESSION Optional filter expression to apply to the table.
static String	FALSE
static String	RESULT_TABLE The name of the table used to store the results.
static String	RESULT_TABLE_FORCE_REPLICATED Force the result table to be replicated (ignores any sharding).
static String	RESULT_TABLE_GENERATE_PK If 'true' then set a primary key for the result table.
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	SORT_ORDER String indicating how the returned values should be sorted.
static String	TRUE
static String	TTL Sets the TTL of the table specified in result_table.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

COLLECTION_NAME

public static final String COLLECTION_NAME

Name of a collection which is to contain the table specified in result_table. If the collection provided is non-existent, the collection will be automatically created. If empty, then the table will be a top-level table. Additionally this option is invalid if tableName is a collection.

See Also:

Constant Field Values

EXPRESSION

public static final String EXPRESSION

Optional filter expression to apply to the table.

See Also:

Constant Field Values

SORT_ORDER

public static final String SORT_ORDER

String indicating how the returned values should be sorted. Supported values:

• ASCENDING
• DESCENDING

The default value is ASCENDING.

See Also:

Constant Field Values

ASCENDING

public static final String ASCENDING

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Constant Field Values

DESCENDING

public static final String DESCENDING

See Also:

Constant Field Values

RESULT_TABLE

public static final String RESULT_TABLE

The name of the table used to store the results. If present, no results are returned in the response. Has the same naming restrictions as tables. Not available if tableName is a collection or when columnName is an unrestricted-length string.

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.

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Constant Field Values

TRUE

public static final String TRUE

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Constant Field Values

FALSE

public static final String FALSE

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Constant Field Values

RESULT_TABLE_FORCE_REPLICATED

public static final String RESULT_TABLE_FORCE_REPLICATED

Force the result table to be replicated (ignores any sharding). Must be used in combination with the result_table option.

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Constant Field Values

RESULT_TABLE_GENERATE_PK

public static final String RESULT_TABLE_GENERATE_PK

If 'true' then set a primary key for the result table. Must be used in combination with the result_table option.

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Constant Field Values

TTL

public static final String TTL

Sets the TTL of the table specified in result_table.

See Also:

Constant Field Values

CHUNK_SIZE

public static final String CHUNK_SIZE

Indicates the chunk size to be used for the result table. Must be used in combination with the result_table option.

See Also:

Constant Field Values