Hiperspace.SQL 2.3.4

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Hiperspace.SQL --version 2.3.4
                    


                    

                
NuGet\Install-Package Hiperspace.SQL -Version 2.3.4
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Hiperspace.SQL" Version="2.3.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Hiperspace.SQL" Version="2.3.4" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Hiperspace.SQL" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Hiperspace.SQL --version 2.3.4
                    


                    

                
#r "nuget: Hiperspace.SQL, 2.3.4"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#addin nuget:?package=Hiperspace.SQL&version=2.3.4
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Hiperspace.SQL&version=2.3.4
                    


                            Install as a Cake Tool

Hiperspace.SQL

Hiperspace.SQL is a full SQL query engine for Hiperspace, supporting the full range of joins, aggregations, and subqueries.

Hiperspace.SQL provides the same query functionality as a .NET client can use with LINQ queries, but without the need to write code in C#/F#

Hiperspace fully supports point-in-time "time travel" queries that are not possible with Python Data-Frames or DuckDB

Features

  • Hiperspace.SQL is not limited to queries of columns within a table, but supports the full navigation of properties of Hiperspace elements
  • Where a column is a complex object it is returned as a JSON object
  • Executing a batch of SQL statements return columnar data frames (dictionary of column-name and array of values)
  • Explain SQL returns the execution plan, detailing the SetSPaces accessed and keys used for search (Key, Index, Scan)
  • The Parquet method returns a Parquet file that can be used with any Apache Parquet library, or added to DuckDB OLAP store

Data Dictionary

SCHEMA_TABLE

Column Name Data Type Description
TABLE_NAME string The name of the table
TABLE_TYPE string The type of the table in SCHEMA_PROPERTY

SCHEMA_COLUMN

Column Name Data Type Description
TABLE_NAME string The name of the table
COLUMN_NAME string The name of the column
COLUMN_TYPE string The type of the table in SCHEMA_PROPERTY

SCHEMA_PROPERTY

Column Name Data Type Description
TYPE_NAME string The Type Name
PROPERTY_NAME string The name of each property
PROPERTY_TYPE string reference to SCHEMA_PROPERTY.TYPE_NAME

Examples

Simple query

SELECT p.Name, p.Gender FROM Persons as p WHERE p.Name = 'Lucy'

Query parameters

SELECT p.Name, p.Gender FROM Persons as p WHERE p.Name = :name

Query batches

SELECT p.Name, p.Gender FROM Persons as p WHERE p.Name = :name;
SELECT Name as name, Father as father from   Persons ;

Joins

SELECT  p.Name, f.Name as Father, f.Father as GrandFather
FROM    Persons as p 
join    Persons as f on p.Father.Name = f.Name
WHERE   p.Name = :name

Aggregates

select  p.Father.Name, count(p.Name) as Children
from    Persons as p
group by p.Father.Name as f
having count(*) > 1;

Like expressions

select  p.Father.Name, count(p.Name) as Children
from    Persons as p
where   Name like 'L%' and Name like '%y' or (Name like '%u%' and Name like '_uc_')
group by p.Father.Name as f
having count(*) > 1;

Null handling

select  p.Name, p.Father.Name
from    Persons as p
where   Name is not null

in query

SELECT p.Name, p.Gender 
FROM Persons as p 
WHERE p.Gender in (select p2.Gender from Persons as p2 where p2.Name = 'Lucy')

union

SELECT p.Name, p.Gender 
FROM Persons as p 
WHERE p.Name in ('Lucy', 'Mark')
union 
SELECT p.Name, p.Gender 
FROM Persons as p 
WHERE p.Name in ('Eve', 'Mary')

inline view

SELECT p.Name, p.Gender 
FROM Persons as p 
join (select p2.Gender from Persons as p2 where p2.Name = 'Lucy') as p3 on p.Gender = p3.Gender

dictionary query

select * from SCHEMA_TABLES;
select * from SCHEMA_COLUMNS;
select * from SCHEMA_PROPERTIES;

API

The Hiperspace.SQL API can be called from any language that supports DOTNET interop, including Python (using pythonnet). Access via the Hiperspace.SQL.Engine object that is constructed with a reference to any domain space.

Explain

Provides a detailed breakdown of the query execution plan

member engine.Explain (source, parameters : IDictionary<string,obj>) : string array =

Execute

Executes the SQL queries and returns an array of Data Frames

member engine.Execute (source , parameters : IDictionary<string,obj>) : IDictionary<string, obj array> array  =

Parquet

Executes the SQL queries will a n array of filenames (one for each statement) and returns the filenames after writing the results to the Apache Parquet files.

member this.Parquet (source, fileNames, parameters : IDictionary<string,obj>): string array =
Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

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Version Downloads Last Updated
2.3.8 110 7/1/2025
2.3.4 131 6/5/2025
2.2.2 144 5/5/2025
2.2.1 207 4/14/2025
2.2.0 91 3/29/2025
2.1.9 214 3/5/2025
2.1.6 112 2/15/2025
2.0.0 66 1/14/2025
1.0.5 115 11/15/2024
1.0.2 105 11/1/2024
1.0.1 154 10/18/2024

https://www.cepheis.com/hiperspace/20250606
     # Overview
     This release Significantly extends the functionality provided for Cube Analytics by hiperspace and combines streaming recalculation with graph navigation.  The  cube enhancement is detailed on [OLAP](https://www.cepheis.com/hiperspace/use-case-cube) use-case.  To support Cube analytics and code-generation for aggregation service, and  a number of additions were made to [Hipersapce](Hiperspace) and [HiLang](HiLang) compiler.



     -----


     ## Blazor enhancements
     This release removes obsolete functions that are no longer used, such as `Space()` which has been replaced by `ExportAsync()` to provide a streaming transfer of updates from a `SessionSpace` for higher performance.

     ### SetSpace
     The Bind function now has an addition parameter for read/write so that filter can be used to *delete* elements without the need to open an additional connection

     ### SubSpace
     In addition to ExportAsync and ImportAsync, SubSpaces now include `ExportCacheAsync` and `ImportCacheAsync` to allow a server gRPC endpoint to select all the elements that are needed for a use-case and send them all in one message to the client.

     ### BrowserSpace
     This new type of space has been created in order to address the limitations of blazer web assembly that does not support synchronous network IO. BrowserSpace will be deprecated once WebAssembly support asynchronous threads.

     Browser space, any synchronous operation, uses only the local changes cache, while asynchronous operations use either the local cache or the remote store

     A matching change has been made to the HiLang code generator to use the local BrowserSpace for synchronous operations while


     -----

     ## Cube Changes

     * **CubeFact** property on an Element, now has a mathcing `ICubeFact` inteface and `ICubeDrillDown` for drill-down to further levels of detail
     * **CubeHierarchy** property identifies a **CubeDimension** that is a hierarchy, with a reference to the member key/value that provides the parent.  This results in as `ICubeHierarchy<>` interface added to the dimension element
     * **DeltaIndex** property now results in a `IDeltaIndex<>` element added to `RefSet<>` for the elements `SubSpace` collection, to retrieve all values that have changed since the timestamp.  This interface is used by the `Hiperspaced.Meta.Route` map to retrieve all elements that have changed since the last calculation
     *  **ElementVersion<>** now allows the `AsAt` property to be changed by an application to allow the historical data loading of a Hiperspace for Cube Analytics
     * **Additional functions** added for `drilldown()` (*from cube to details*) `cubename()` (*for Graph name of a cube observation*) `contextlabel()` (*use context when retrieving cubes* there might be separate summaries for P&L and implied P&L )
     * **SetSpace<>** now has an additional event `OnMissing` that allows missing cube aggregates to be calculated on-demand, or fetched from an external database


     -----

     The change also includes updates to referenced assemblies