qualify | Match a fact against large number of pre-defined rules in Go | Rule Engine library
kandi X-RAY | qualify Summary
kandi X-RAY | qualify Summary
Library for fast rules evaluation for Go. Qualify is able to quickly match a fact against large number of pre-defined rules.
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Trending Discussions on qualify
QUESTION
Is there a shorter way to filter a cte on rown_num = 1 rather than an external where clause? I vaguely recall doing this in teradata with a 'qualify' statement. Is there a less code way I can use in Postgres?
...ANSWER
Answered 2021-Jun-12 at 19:08You need at least two levels of select to do that with a Window function. You could do both levels in the CTE if you wanted and then have a third dummy select outside the CTE, but I don't see what the point of that would be, other than to make the dummy select appear cleaner (no WHERE clause, no column "rn"). That part would get shorter, but the CTE would get longer. Or you could just do away with the CTE altogether and write nested queries directly, which I guess would be "shorter" in the number keystrokes used. Or you could encapsulate different fragments into a view, to hide some of the levels from sight.
I think you could also write this using DISTINCT ON or JOIN LATERAL, rather than using a window function, but that doesn't seem to be what you are asking.
QUESTION
I have a list of tuples:
list = [(1,-1),(1,1),(2,0),(3,-9),(3,9),(4,-10),(4,-8),(4,8),(4,10),(5,-25),(5,25),(5,-9),(5,9)]
Here is what I want to do:
- For every number in the first place, i.e. for 1, 2, 3, 4, and 5, find the minimum of abs(second value). If there are multiple minima, find all of them. For instance, for '1' in the first place both (1,-1) and (1,1) qualify because abs(-1)=abs(1)
- Create another list with 1s in corresponding places where the tuples in the list qualify and 0 where they do not. The answer is
[1,1,1,1,1,0,1,1,0,0,0,1,1]
Here is my code:
...ANSWER
Answered 2021-Jun-11 at 19:42Try:
QUESTION
So, this isn't really something I have to do, I was just playing around. I wrote a Vector
class for vectors of any numeric type and any number of coordinates. It is used as Vector
. Here is the code:
ANSWER
Answered 2021-Jun-11 at 12:08In Convert
, you have the parameter pack Is
which you'd like to use in conjunction with callback
and values
.
Parameter pack expansion "expands to comma-separated list of zero or more patterns", so this is what you'll get when used with the values in your question:
Is...
QUESTION
I have a Pandas dataframe with an ID, a Timestamp, and a Value. There are multiple rows per ID, and it is sorted by ID and Timestamp ascending. I need to identify the IDs where two values - 'A' and 'B' - occur any two rows, per ID, in that order. For example:-
...ANSWER
Answered 2021-Jun-10 at 16:35>>> df.sort_values("Timestamp") \ # mandatory for shift
.groupby("ID")["Value"] \ # group by 'ID'
.apply(lambda x: any(x > x.shift())) # search B > A
ID
001 True
002 True
003 False
Name: Value, dtype: bool
QUESTION
I am newbie in python so please help me out .
I have a function in my client api -:
...ANSWER
Answered 2021-Jun-07 at 21:36When you use function apply
of a Series (because df['PluginOutput'] is a Series object, check it out) you pass each value to the function used inside the apply
. So the function should take a PluginOutput
and return desired value (not Series and not DataFrame - the value itself). To save just use to_excel
fun e.g. df.to_excel("output.xlsx", sheet_name='Sheet_name_1')
QUESTION
I'm using Vaadin and Spring Boot to build webapp used as registration form.
I'm getting an issue when deploying the webapp inside a Tomcat (but never when lauching directly from Intellij IDE).
The Stacktrace is :
...ANSWER
Answered 2021-Jun-04 at 08:58One potential problem could be with your Java package structure. Spring Boot does by default only look for annotated within the Java package (and it's children) that contains the Application
class.
If your OktaService
is in a location of your package structure, then it won't be found by default. As an example, if you have Application
in com.example.myapp.ui
and OktaService
in com.example.myapp.service
, then it won't work. If this is the case, then you can either change your package structure or set the scanBasePackages
property in @SpringBootApplication
to define a location that covers the entire application.
QUESTION
I got the follow errors:
...ANSWER
Answered 2021-Jun-03 at 06:08In this case, just need to add a constructor for the subclass which is Eigenschaften and create the object from there. My modifications:
- Also Save these three as separate java files
QUESTION
I have a problem of running my Test class. It returns "org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 't.c.i.s.se.Sfts' available: expected single matching bean but found 2: sftsImpl,sfts
" this exception after I run it.
Here's my test class;
...ANSWER
Answered 2021-Jun-01 at 11:30Try to remove @Component annotation from the SftsImpl bean. @Service is enough to register a bean.
Also if you just want to test your bean - getting it from ApplicationContext maybe is not the best option. Code example of a unit test without using ApplicationContext:
QUESTION
Because I have to work with a legacy application, I want to use beans from a separate Spring context.
I create this separate Spring context with an XML beans definition like this:
...ANSWER
Answered 2021-May-31 at 14:19I have now removed the "outer" Spring application. With plain Java code I can load the other context without interference.
QUESTION
In SpringBoot Maven application I have configured two datasources - one Neo4j for Liquigraph
...ANSWER
Answered 2021-May-31 at 12:44I reconfigured Liquigraph with the following:
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