quetzal | SQL translation engine for multiple backends | Data Manipulation library
kandi X-RAY | quetzal Summary
kandi X-RAY | quetzal Summary
Quetzal (*Que*ry Tran*z*l*a*tion *L*ibraries).
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Top functions reviewed by kandi - BETA
- Populate the mappings for the query
- Populate SQL mapping
- Return a list of variables that belong to a given predecessor
- Sets the post data
- The main method
- Write to table
- Writes the class map to the given writer
- Ensures that a language exists in the language table
- Main method for testing
- Add implied taxonomy to ontology
- Returns the rows of the database
- Returns a string representation of this restriction
- Generate SQL for a source table
- Main entry point
- Emit the function call
- Generate SQL for a plan node
- Populate mapping
- Visit the term and term expressions
- Generate order by clause
- Do the actual work
- Little test program
- Builds the summation graph
- Computes the edge cost of a queryTriple
- Initialize the object inspector
- Transform a predicate into a set of predicates
- Visits left operand expressions
quetzal Key Features
quetzal Examples and Code Snippets
Community Discussions
Trending Discussions on quetzal
QUESTION
I need help if there is any expert in XML and kotlin. I would like to know how to convert the below XML access it in kotlin code and then convert it into kotlin array file i.e. like (USD -> $) so the value of USD is the symbol which the unicode of from the XML.
I know in Android there is java utill class but the problem there is there is not all currencies symbols available i.e. for AFN -> there is AFN but in actual it should be -> ؋.
here is XML file:
...ANSWER
Answered 2022-Mar-06 at 18:55val xml = """
Albania Lek
Afghanistan Afghani
Argentina Peso
Aruba Guilder
Australia Dollar
Azerbaijan New Manat
"""
data class Currency(
val code: String,
val name: String,
val symbol: String
)
val currencies = xml.trimIndent()
.substringAfter(">").substringBeforeLast(")|()".toRegex())
.filter { s -> s.isNotBlank() }
Currency(
code = splitted.first(),
name = splitted.last(),
symbol = (splitted.drop(1).dropLast(1).lastOrNull() ?: "")
.split(",")
.filter { s -> s.isNotBlank() }
.map { s -> Integer.parseInt(s.trim(), 16).toChar() }
.joinToString("")
)
}
currencies.forEach { println(it) }
QUESTION
I wrote a bunch of visualization functions in my python3 library using Mayavi. I am not very familiar with this library, nor am I with testing visualizations using python.
Ideally, I would just like the visualization code to generate some graphics on disk, I don't care too much about popping up windows (although I'm not sure to understand if Mayavi can work properly without popping such windows).
Anyway, my code works on local, but when I push it on develop, CircleCI fails at running the tests with the following error:
...ANSWER
Answered 2022-Feb-09 at 18:09I missed a dependency, qt5-default
. I ended up having these lines for Mayavi running on Docker/CircleCi:
QUESTION
I am using Synth() package (see ftp://cran.r-project.org/pub/R/web/packages/Synth/Synth.pdf) in R.
This is a part of my data frame:
...ANSWER
Answered 2021-Aug-18 at 06:32I cannot tell you what's going on behind the scenes, but I think that Synth wants a few things:
First, turn factor variables into characters;
QUESTION
- I have this currency converter api website that I have used for my converter module.
- I want to simplify the code by extracting the data from the json data shown at the bottom of the question
My Code:
...ANSWER
Answered 2020-Jun-30 at 15:28data
object
- The
key-value
pair withid
is underdata['results']
- Iterate through each
key
(e.g.'BTN'
) andvalue
({'currencyName': 'Bhutanese Ngultrum', 'id': 'BTN'}
) to get theid
- Iterate through each
- The
key
for each currency is also theid
'BTN': {'currencyName': 'Bhutanese Ngultrum', 'id': 'BTN'}
- This will give you all the data, not just
id
- Use pandas.json_normalize & pandas.concat to create a dataframe of the JSON data.
pd.json_normalize(v) for v in data['results'].values()
creates a dataframe for each{'currencyName': 'Albanian Lek', 'currencySymbol': 'Lek', 'id': 'ALL'}
pd.concat(...)
combines all the dataframes into one dataframe.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install quetzal
You can use quetzal like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the quetzal component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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