Queryparser, an Open Source Tool for Parsing and Analyzing SQL
You’re seeing information for Japan . To see local features and services for another location, select a different city. Show more In early 2015, Uber Engineering migrated its business entities from integer identifiers to UUID identifiers as part of an initiative towards using multiple active data centers. To achieve this, our Data Warehouse team was tasked with identifying every foreign-key relati
tim philip williams :: Functional pearl: Nested Datacubes
Introduction Multi-dimensional aggregation and grouping are common forms of analysis traditionally done with SQL databases, OLAP tools (Online Analytical Processing) and/or Excel pivot tables. These traditional tools use a flat table representation, whereby tuples are mapped to measures without any nesting. Increasingly, users are using general purpose programming languages for further offline ana
The Egison Programming Language
- Express Intuition Directly with Essentially New Syntax - Egison is a programming language that features extensible efficient non-linear pattern matching with backtracking for non-free data types. We can directly represent pattern matching for a wide range of data types including lists, multisets, sets, trees, graphs, and mathematical expressions. Egison makes programming dramatically simple! --
Functional dependencies - HaskellWiki
Functional dependencies are used to constrain the parameters of type classes. They let you state that in a multi-parameter type class, one of the parameters can be determined from the others, so that the parameter determined by the others can, for example, be the return type but none of the argument types of some of the methods. The GHC Users Guide has a Functional Dependencies section. Examples S
Applicative Programming with Effects
Conor McBride and Ross Paterson. in Journal of Functional Programming 18:1 (2008), pages 1-13. Abstract In this paper, we introduce Applicative functors--an abstract characterisation of an applicative style of effectful programming, weaker than Monads and hence more widespread. Indeed, it is the ubiquity of this programming pattern that drew us to the abstraction. We retrace our steps in this pape
Episode 9 - Conal Elliott on FRP and Denotational Design - The Haskell Cast
Recorded: 2014-11-16, Published: 2014-12-15 Conal Elliott, inventor of Functional Reactive Programming, tells us about the birth of FRP as well as other stories from his 25 years of functional programming experience. He shares what he considers the fundamentals of FRP (behaviors and events) and how they work in a model with continuous time. We speak about FRP practicality and efficiency, including
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IO inside - HaskellWiki
GitHub - tonymorris/fp-course: Functional Programming Course
GitHub - travitch/datalog: A pure Haskell implementation of Datalog
Research papers/Domain specific languages - HaskellWiki
Paul Hudak | The Yale Haskell Group
IIJ Research Laboratory