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Package com.gpudb.protocol

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Class AggregateUnpivotRequest

java.lang.Object
com.gpudb.protocol.AggregateUnpivotRequest
All Implemented Interfaces:
org.apache.avro.generic.GenericContainer, org.apache.avro.generic.IndexedRecord
public class AggregateUnpivotRequest extends Object implements org.apache.avro.generic.IndexedRecord
A set of parameters for GPUdb.aggregateUnpivot.

Rotate the column values into rows values.

For unpivot details and examples, see Unpivot. For limitations, see Unpivot Limitations.

Unpivot is used to normalize tables that are built for cross tabular reporting purposes. The unpivot operator rotates the column values for all the pivoted columns. A variable column, value column and all columns from the source table except the unpivot columns are projected into the result table. The variable column and value columns in the result table indicate the pivoted column name and values respectively.

The response is returned as a dynamic schema. For details see: dynamic schemas documentation.

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    Constructor Details

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      AggregateUnpivotRequest

      public AggregateUnpivotRequest()
      Constructs an AggregateUnpivotRequest object with default parameters.

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      AggregateUnpivotRequest

      public AggregateUnpivotRequest(String tableName, List<String> columnNames, String variableColumnName, String valueColumnName, List<String> pivotedColumns, Map<String,String> options)
      Constructs an AggregateUnpivotRequest object with the specified parameters.
      Parameters:
      tableName - Name of the table on which the operation will be performed. Must be an existing table/view, in [schema_name.]table_name format, using standard name resolution rules.
      columnNames - List of column names or expressions. A wildcard ’*’ can be used to include all the non-pivoted columns from the source table.
      variableColumnName - Specifies the variable/parameter column name. The default value is ”.
      valueColumnName - Specifies the value column name. The default value is ”.
      pivotedColumns - List of one or more values typically the column names of the input table. All the columns in the source table must have the same data type.
      options - 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 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:The default value is FALSE.
      • COLLECTION_NAME: [DEPRECATED—please specify the containing schema as part of RESULT_TABLE and use GPUdb.createSchema to create the schema if non-existent] Name of a schema which is to contain the table specified in RESULT_TABLE. If the schema is non-existent, it will be automatically created.
      • 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 present, no results are 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:The default value is FALSE.
      • EXPRESSION: Filter expression to apply to the table prior to unpivot processing.
      • ORDER_BY: Comma-separated list of the columns to be sorted by; e.g. ‘timestamp asc, x desc’. The columns specified must be present in input table. If any alias is given for any column name, the alias must be used, rather than the original column name. The default value is ”.
      • CHUNK_SIZE: Indicates the number of records per chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_COLUMN_MAX_MEMORY: Indicates the target maximum data size for each column in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_MAX_MEMORY: Indicates the target maximum data size for all columns in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • COMPRESSION_CODEC: The default compression codec for the result table’s columns.
      • LIMIT: The number of records to keep. The default value is ”.
      • TTL: Sets the TTL of the table specified in RESULT_TABLE.
      • VIEW_ID: View this result table is part of. The default value is ”.
      • CREATE_INDEXES: Comma-separated list of columns on which to create indexes on the table specified in RESULT_TABLE. The columns specified must be present in output column names. If any alias is given for any column name, the alias must be used, rather than the original column name.
      • RESULT_TABLE_FORCE_REPLICATED: Force the result table to be replicated (ignores any sharding). Must be used in combination with the RESULT_TABLE option. Supported values:The default value is FALSE.
      The default value is an empty Map.

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      AggregateUnpivotRequest

      public AggregateUnpivotRequest(String tableName, List<String> columnNames, String variableColumnName, String valueColumnName, List<String> pivotedColumns, String encoding, Map<String,String> options)
      Constructs an AggregateUnpivotRequest object with the specified parameters.
      Parameters:
      tableName - Name of the table on which the operation will be performed. Must be an existing table/view, in [schema_name.]table_name format, using standard name resolution rules.
      columnNames - List of column names or expressions. A wildcard ’*’ can be used to include all the non-pivoted columns from the source table.
      variableColumnName - Specifies the variable/parameter column name. The default value is ”.
      valueColumnName - Specifies the value column name. The default value is ”.
      pivotedColumns - List of one or more values typically the column names of the input table. All the columns in the source table must have the same data type.
      encoding - Specifies the encoding for returned records. Supported values:
      • BINARY: Indicates that the returned records should be binary encoded.
      • JSON: Indicates that the returned records should be JSON-encoded.
      The default value is BINARY.
      options - 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 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:The default value is FALSE.
      • COLLECTION_NAME: [DEPRECATED—please specify the containing schema as part of RESULT_TABLE and use GPUdb.createSchema to create the schema if non-existent] Name of a schema which is to contain the table specified in RESULT_TABLE. If the schema is non-existent, it will be automatically created.
      • 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 present, no results are 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:The default value is FALSE.
      • EXPRESSION: Filter expression to apply to the table prior to unpivot processing.
      • ORDER_BY: Comma-separated list of the columns to be sorted by; e.g. ‘timestamp asc, x desc’. The columns specified must be present in input table. If any alias is given for any column name, the alias must be used, rather than the original column name. The default value is ”.
      • CHUNK_SIZE: Indicates the number of records per chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_COLUMN_MAX_MEMORY: Indicates the target maximum data size for each column in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_MAX_MEMORY: Indicates the target maximum data size for all columns in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • COMPRESSION_CODEC: The default compression codec for the result table’s columns.
      • LIMIT: The number of records to keep. The default value is ”.
      • TTL: Sets the TTL of the table specified in RESULT_TABLE.
      • VIEW_ID: View this result table is part of. The default value is ”.
      • CREATE_INDEXES: Comma-separated list of columns on which to create indexes on the table specified in RESULT_TABLE. The columns specified must be present in output column names. If any alias is given for any column name, the alias must be used, rather than the original column name.
      • RESULT_TABLE_FORCE_REPLICATED: Force the result table to be replicated (ignores any sharding). Must be used in combination with the RESULT_TABLE option. Supported values:The default value is FALSE.
      The default value is an empty Map.

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    Method Details

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      getClassSchema

      public static org.apache.avro.Schema getClassSchema()
      This method supports the Avro framework and is not intended to be called directly by the user.
      Returns:
      The schema for the class.

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      getTableName

      public String getTableName()
      Name of the table on which the operation will be performed. Must be an existing table/view, in [schema_name.]table_name format, using standard name resolution rules.
      Returns:
      The current value of tableName.

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      setTableName

      public AggregateUnpivotRequest setTableName(String tableName)
      Name of the table on which the operation will be performed. Must be an existing table/view, in [schema_name.]table_name format, using standard name resolution rules.
      Parameters:
      tableName - The new value for tableName.
      Returns:
      this to mimic the builder pattern.

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      getColumnNames

      public List<String> getColumnNames()
      List of column names or expressions. A wildcard ’*’ can be used to include all the non-pivoted columns from the source table.
      Returns:
      The current value of columnNames.

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      setColumnNames

      public AggregateUnpivotRequest setColumnNames(List<String> columnNames)
      List of column names or expressions. A wildcard ’*’ can be used to include all the non-pivoted columns from the source table.
      Parameters:
      columnNames - The new value for columnNames.
      Returns:
      this to mimic the builder pattern.

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      getVariableColumnName

      public String getVariableColumnName()
      Specifies the variable/parameter column name. The default value is ”.
      Returns:
      The current value of variableColumnName.

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      setVariableColumnName

      public AggregateUnpivotRequest setVariableColumnName(String variableColumnName)
      Specifies the variable/parameter column name. The default value is ”.
      Parameters:
      variableColumnName - The new value for variableColumnName.
      Returns:
      this to mimic the builder pattern.

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      getValueColumnName

      public String getValueColumnName()
      Specifies the value column name. The default value is ”.
      Returns:
      The current value of valueColumnName.

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      setValueColumnName

      public AggregateUnpivotRequest setValueColumnName(String valueColumnName)
      Specifies the value column name. The default value is ”.
      Parameters:
      valueColumnName - The new value for valueColumnName.
      Returns:
      this to mimic the builder pattern.

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      getPivotedColumns

      public List<String> getPivotedColumns()
      List of one or more values typically the column names of the input table. All the columns in the source table must have the same data type.
      Returns:
      The current value of pivotedColumns.

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      setPivotedColumns

      public AggregateUnpivotRequest setPivotedColumns(List<String> pivotedColumns)
      List of one or more values typically the column names of the input table. All the columns in the source table must have the same data type.
      Parameters:
      pivotedColumns - The new value for pivotedColumns.
      Returns:
      this to mimic the builder pattern.

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      getEncoding

      public String getEncoding()
      Specifies the encoding for returned records. Supported values:
      • BINARY: Indicates that the returned records should be binary encoded.
      • JSON: Indicates that the returned records should be JSON-encoded.
      The default value is BINARY.
      Returns:
      The current value of encoding.

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      setEncoding

      public AggregateUnpivotRequest setEncoding(String encoding)
      Specifies the encoding for returned records. Supported values:
      • BINARY: Indicates that the returned records should be binary encoded.
      • JSON: Indicates that the returned records should be JSON-encoded.
      The default value is BINARY.
      Parameters:
      encoding - The new value for encoding.
      Returns:
      this to mimic the builder pattern.

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      getOptions

      public Map<String,String> getOptions()
      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 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:The default value is FALSE.
      • COLLECTION_NAME: [DEPRECATED—please specify the containing schema as part of RESULT_TABLE and use GPUdb.createSchema to create the schema if non-existent] Name of a schema which is to contain the table specified in RESULT_TABLE. If the schema is non-existent, it will be automatically created.
      • 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 present, no results are 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:The default value is FALSE.
      • EXPRESSION: Filter expression to apply to the table prior to unpivot processing.
      • ORDER_BY: Comma-separated list of the columns to be sorted by; e.g. ‘timestamp asc, x desc’. The columns specified must be present in input table. If any alias is given for any column name, the alias must be used, rather than the original column name. The default value is ”.
      • CHUNK_SIZE: Indicates the number of records per chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_COLUMN_MAX_MEMORY: Indicates the target maximum data size for each column in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_MAX_MEMORY: Indicates the target maximum data size for all columns in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • COMPRESSION_CODEC: The default compression codec for the result table’s columns.
      • LIMIT: The number of records to keep. The default value is ”.
      • TTL: Sets the TTL of the table specified in RESULT_TABLE.
      • VIEW_ID: View this result table is part of. The default value is ”.
      • CREATE_INDEXES: Comma-separated list of columns on which to create indexes on the table specified in RESULT_TABLE. The columns specified must be present in output column names. If any alias is given for any column name, the alias must be used, rather than the original column name.
      • RESULT_TABLE_FORCE_REPLICATED: Force the result table to be replicated (ignores any sharding). Must be used in combination with the RESULT_TABLE option. Supported values:The default value is FALSE.
      The default value is an empty Map.
      Returns:
      The current value of options.

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      setOptions

      public AggregateUnpivotRequest setOptions(Map<String,String> options)
      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 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:The default value is FALSE.
      • COLLECTION_NAME: [DEPRECATED—please specify the containing schema as part of RESULT_TABLE and use GPUdb.createSchema to create the schema if non-existent] Name of a schema which is to contain the table specified in RESULT_TABLE. If the schema is non-existent, it will be automatically created.
      • 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 present, no results are 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:The default value is FALSE.
      • EXPRESSION: Filter expression to apply to the table prior to unpivot processing.
      • ORDER_BY: Comma-separated list of the columns to be sorted by; e.g. ‘timestamp asc, x desc’. The columns specified must be present in input table. If any alias is given for any column name, the alias must be used, rather than the original column name. The default value is ”.
      • CHUNK_SIZE: Indicates the number of records per chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_COLUMN_MAX_MEMORY: Indicates the target maximum data size for each column in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • CHUNK_MAX_MEMORY: Indicates the target maximum data size for all columns in a chunk to be used for the result table. Must be used in combination with the RESULT_TABLE option.
      • COMPRESSION_CODEC: The default compression codec for the result table’s columns.
      • LIMIT: The number of records to keep. The default value is ”.
      • TTL: Sets the TTL of the table specified in RESULT_TABLE.
      • VIEW_ID: View this result table is part of. The default value is ”.
      • CREATE_INDEXES: Comma-separated list of columns on which to create indexes on the table specified in RESULT_TABLE. The columns specified must be present in output column names. If any alias is given for any column name, the alias must be used, rather than the original column name.
      • RESULT_TABLE_FORCE_REPLICATED: Force the result table to be replicated (ignores any sharding). Must be used in combination with the RESULT_TABLE option. Supported values:The default value is FALSE.
      The default value is an empty Map.
      Parameters:
      options - The new value for options.
      Returns:
      this to mimic the builder pattern.

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      getSchema

      public org.apache.avro.Schema getSchema()
      This method supports the Avro framework and is not intended to be called directly by the user.
      Specified by:
      getSchema in interface org.apache.avro.generic.GenericContainer
      Returns:
      The schema object describing this class.

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      get

      public Object get(int index)
      This method supports the Avro framework and is not intended to be called directly by the user.
      Specified by:
      get in interface org.apache.avro.generic.IndexedRecord
      Parameters:
      index - the position of the field to get
      Returns:
      value of the field with the given index.
      Throws:
      IndexOutOfBoundsException

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      put

      public void put(int index, Object value)
      This method supports the Avro framework and is not intended to be called directly by the user.
      Specified by:
      put in interface org.apache.avro.generic.IndexedRecord
      Parameters:
      index - the position of the field to set
      value - the value to set
      Throws:
      IndexOutOfBoundsException

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      equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

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      toString

      public String toString()
      Overrides:
      toString in class Object

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      hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object