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I regretted missing this notification last year, so let's get an entry into this year's edition.
* [Submission Guidelines](https://mail.haskell.org/pipermail/haskell-cafe/2018-March/128829.html)
*…
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Hi, I just found this functional relational algebra database. Math operators and functional pureness really helps me better understand database than sql syntax. I can easily project what I want by g…
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As I only have a few weeks left in my contract to work on libCellML, it was suggested that it might be best to put a pin in work on the Validator ( #127 ) for now. The broad strokes are in place for v…
dladd updated
6 years ago
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Correlated subqueries can be transformed into variants of joins where the right input depends on values from the left input. Consider the query:
```
SELECT * FROM a WHERE EXISTS (SELECT * FROM b W…
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This is the initial plan to get started with the AS-MOSES port. It
only treats the first steps, though does so in details.
# Initiate the as-moses repo
AS-MOSES represents a rather major depart…
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Hi, I am "new" here: I used Unitex ~10 years ago, and we translated all to SQL, was a good approach to manage big data... There are an "UnitexGramLab recipe" to transform DELA datasets into SQL (Pos…
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```
root@:26257/> EXPLAIN SELECT 1;
+-------+---------+-------+-------------+
| Level | Type | Field | Description |
+-------+---------+-------+-------------+
| 0 | render | | …
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When performing an action on a `DataFrame` which may take a long time (e.g. persisting to CSV) the time elapsed should be added to the metadata. Will help track job performance.
laneb updated
6 years ago
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# Minimum program to reproduce
`etlas build` this program as a uberjar.
```hs
module Main where
import Data.Time.LocalTime
main :: IO ()
main = print =
igrep updated
5 years ago
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Not all expression-pairs can be operand of comparison operators. Some type check needs to be done when compiling the cypher query to te relational algebra expressions.
These are legal:
- `nodeVa…