A set of parameters for Kinetica.createUnion. More…
Inheritance diagram for kinetica.CreateUnionRequest:
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Collaboration diagram for kinetica.CreateUnionRequest:
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Classes | |
| struct | Options |
| A set of string constants for the parameter CreateUnionRequest.options. More… | |
Public Member Functions | |
| CreateUnionRequest () | |
| Constructs a CreateUnionRequest object with default parameters. | |
| CreateUnionRequest (string table_name, IList< string > table_names, IList< IList< string > > input_column_names, IList< string > output_column_names, IDictionary< string, string > options=null) | |
| Constructs a CreateUnionRequest object with the specified parameters. | |
| CreateUnionRequest () | |
| Constructs a CreateUnionRequest object with default parameters. | |
| CreateUnionRequest (string table_name, IList< string > table_names, IList< IList< string > > input_column_names, IList< string > output_column_names, IDictionary< string, string > options=null) | |
| Constructs a CreateUnionRequest object with the specified parameters. | |
| Public Member Functions inherited from kinetica.KineticaData | |
| KineticaData (KineticaType type) | |
| Constructor from Kinetica Type. | |
| KineticaData (System.Type type=null) | |
| Default constructor, with optional System.Type. | |
| object | Get (int fieldPos) |
| Retrieve a specific property from this object. | |
| void | Put (int fieldPos, object fieldValue) |
| Write a specific property to this object. | |
| KineticaData (KineticaType type) | |
| Constructor from Kinetica Type. | |
| KineticaData (System.Type type=null) | |
| Default constructor, with optional System.Type. | |
| object | Get (int fieldPos) |
| Retrieve a specific property from this object. | |
| void | Put (int fieldPos, object fieldValue) |
| Write a specific property to this object. | |
Properties | |
| string | table_name [get, set] |
| Name of the table to be created, in [schema_name. | |
| IList< string > | table_names = new List<string>() [get, set] |
| The list of table names to merge, in [schema_name. | |
| IList< IList< string > > | input_column_names = new List<IList<string>>() [get, set] |
| The list of columns from each of the corresponding input tables. | |
| IList< string > | output_column_names = new List<string>() [get, set] |
| The list of names of the columns to be stored in the output table. | |
| IDictionary< string, string > | options = new Dictionary<string, string>() [get, set] |
| Optional parameters. | |
| Properties inherited from kinetica.KineticaData | |
| Schema | Schema [get] |
| Avro Schema for this class. | |
Additional Inherited Members | |
| Static Public Member Functions inherited from kinetica.KineticaData | |
| static ? RecordSchema | SchemaFromType (System.Type t, KineticaType? ktype=null) |
| Create an Avro Schema from a System.Type and a KineticaType. | |
| static ? RecordSchema | SchemaFromType (System.Type t, KineticaType? ktype=null) |
| Create an Avro Schema from a System.Type and a KineticaType. | |
Detailed Description
A set of parameters for Kinetica.createUnion.
Merges data from one or more tables with comparable data types into a new table.
The following merges are supported:
UNION (DISTINCT/ALL) - For data set union details and examples, see Union. For limitations, see Union Limitations and Cautions.
INTERSECT (DISTINCT/ALL) - For data set intersection details and examples, see Intersect. For limitations, see Intersect Limitations.
EXCEPT (DISTINCT/ALL) - For data set subtraction details and examples, see Except. For limitations, see Except Limitations.
Definition at line 31 of file CreateUnion.cs.
Constructor & Destructor Documentation
◆ CreateUnionRequest() [1/4]
| inline |
Constructs a CreateUnionRequest object with default parameters.
Definition at line 766 of file CreateUnion.cs.
◆ CreateUnionRequest() [2/4]
| inline |
Constructs a CreateUnionRequest object with the specified parameters.
Parameters
| table_name | Name of the table to be created, in [schema_name.]table_name format, using standard name resolution rules and meeting table naming criteria. |
| table_names | The list of table names to merge, in [schema_name.]table_name format, using standard name resolution rules. Must contain the names of one or more existing tables. |
| input_column_names | The list of columns from each of the corresponding input tables. |
| output_column_names | The list of names of the columns to be stored in the output table. |
| options | Optional parameters.
|
Definition at line 1134 of file CreateUnion.cs.
◆ CreateUnionRequest() [3/4]
| inline |
Constructs a CreateUnionRequest object with default parameters.
Definition at line 766 of file CreateUnion.cs.
◆ CreateUnionRequest() [4/4]
| inline |
Constructs a CreateUnionRequest object with the specified parameters.
Parameters
| table_name | Name of the table to be created, in [schema_name.]table_name format, using standard name resolution rules and meeting table naming criteria. |
| table_names | The list of table names to merge, in [schema_name.]table_name format, using standard name resolution rules. Must contain the names of one or more existing tables. |
| input_column_names | The list of columns from each of the corresponding input tables. |
| output_column_names | The list of names of the columns to be stored in the output table. |
| options | Optional parameters.
|
Definition at line 1134 of file CreateUnion.cs.
Property Documentation
◆ input_column_names
| getset |
The list of columns from each of the corresponding input tables.
Definition at line 405 of file CreateUnion.cs.
◆ options
| getset |
Optional parameters.
- CREATE_TEMP_TABLE: If TRUE, a unique temporary table name will be generated in the sys_temp schema and used in place of CreateUnionRequest.table_name. If 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_TABLE_NAME. Supported values:The default value is FALSE.
- COLLECTION_NAME: [DEPRECATED–please specify the containing schema for the projection as part of CreateUnionRequest.table_name and use Kinetica.createSchema to create the schema if non-existent] Name of the schema for the output table. If the schema provided is non-existent, it will be automatically created. The default value is ”.
- MODE: The mode describes what rows of the tables being unioned will be retained. Supported values:
- UNION_ALL: Retains all rows from the specified tables.
- UNION: Retains all unique rows from the specified tables (synonym for UNION_DISTINCT).
- UNION_DISTINCT: Retains all unique rows from the specified tables.
- EXCEPT: Retains all unique rows from the first table that do not appear in the second table (only works on 2 tables).
- EXCEPT_ALL: Retains all rows(including duplicates) from the first table that do not appear in the second table (only works on 2 tables).
- INTERSECT: Retains all unique rows that appear in both of the specified tables (only works on 2 tables).
- INTERSECT_ALL: Retains all rows(including duplicates) that appear in both of the specified tables (only works on 2 tables).
- CHUNK_SIZE: Indicates the number of records per chunk to be used for this output table.
- CHUNK_COLUMN_MAX_MEMORY: Indicates the target maximum data size for each column in a chunk to be used for this output table.
- CHUNK_MAX_MEMORY: Indicates the target maximum data size for all columns in a chunk to be used for this output table.
- CREATE_INDEXES: Comma-separated list of columns on which to create indexes on the output table. The columns specified must be present in CreateUnionRequest.output_column_names.
- PARTITION_TYPE: Partitioning scheme to use for the output table. Supported values:
- RANGE: Use range partitioning.
- INTERVAL: Use interval partitioning.
- LIST: Use list partitioning.
- HASH: Use hash partitioning.
- SERIES: Use series partitioning.
- PARTITION_KEYS: Comma-separated list of partition keys, which are the columns or column expressions by which records will be assigned to partitions defined by PARTITION_DEFINITIONS.
- PARTITION_DEFINITIONS: Comma-separated list of partition definitions, whose format depends on the choice of PARTITION_TYPE. See range partitioning, interval partitioning, list partitioning, hash partitioning, or series partitioning for example formats.
- IS_AUTOMATIC_PARTITION: If TRUE, a new partition will be created for values which don’t fall into an existing partition. Currently only supported for list partitions. Supported values:The default value is FALSE.
- TTL: Sets the TTL of the output table specified in CreateUnionRequest.table_name.
- PERSIST: If TRUE, then the output table specified in CreateUnionRequest.table_name will be persisted and will not expire unless a TTL is specified. If FALSE, then the output table will be an in-memory table and will expire unless a TTL is specified otherwise. Supported values:The default value is FALSE.
- VIEW_ID: ID of view of which this output table is a member. The default value is ”.
- FORCE_REPLICATED: If TRUE, then the output table specified in CreateUnionRequest.table_name will be replicated even if the source tables are not. Supported values:The default value is FALSE.
- STRATEGY_DEFINITION: The tier strategy for the table and its columns.
- COMPRESSION_CODEC: The default compression codec for this table’s columns.
- NO_COUNT: Return a count of 0 for the union table response to avoid the cost of counting; optimization needed for many chunk virtual unions. The default value is ‘false’.
The default value is an empty Dictionary.
Definition at line 762 of file CreateUnion.cs.
◆ output_column_names
| getset |
The list of names of the columns to be stored in the output table.
Definition at line 409 of file CreateUnion.cs.
◆ table_name
| getset |
Name of the table to be created, in [schema_name.
]table_name format, using standard name resolution rules and meeting table naming criteria.
Definition at line 393 of file CreateUnion.cs.
◆ table_names
| getset |
The list of table names to merge, in [schema_name.
]table_name format, using standard name resolution rules.
Must contain the names of one or more existing tables.
Definition at line 401 of file CreateUnion.cs.
The documentation for this class was generated from the following files:
- _build/public-os_ubuntu24.04-arch_amd64-cc_gcc_13.3.0/install/Kinetica/Protocol/CreateUnion.cs
- Kinetica/Protocol/CreateUnion.cs