crate | CrateDB is a distributed SQL database for storing and analyzing massive amounts of data in real-time

 by   crate Java Version: 5.3.2 License: Apache-2.0

kandi X-RAY | crate Summary

kandi X-RAY | crate Summary

crate is a Java library typically used in Big Data, Hadoop applications. crate has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub.

CrateDB is a distributed SQL database for storing and analyzing massive amounts of data in real-time. Built on top of Lucene.

            kandi-support Support

              crate has a highly active ecosystem.
              It has 3692 star(s) with 520 fork(s). There are 172 watchers for this library.
              There were 10 major release(s) in the last 12 months.
              There are 227 open issues and 1452 have been closed. On average issues are closed in 137 days. There are 20 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of crate is 5.3.2

            kandi-Quality Quality

              crate has 0 bugs and 0 code smells.

            kandi-Security Security

              crate has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              crate code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              crate is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              crate releases are available to install and integrate.
              Build file is available. You can build the component from source.
              crate saves you 1004263 person hours of effort in developing the same functionality from scratch.
              It has 492615 lines of code, 42009 functions and 4751 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed crate and discovered the below as its top functions. This is intended to give you an instant insight into crate implemented functionality, and help decide if they suit your requirements.
            • Configures all the functions
            • Register scalar function module
            • Register scalar functions
            • Register scalar function types
            • Validates a binding
            • Returns true if the original binding is not duplicated
            • Checks if two types are equals
            • Add a binding
            • Overrides the default implementation of the superclass method
            • Gets constraints
            • Writes the header to the stream
            • Executes the portal
            • Runs the head chunk
            • Analyze a restore snapshot
            • Returns a map of all analyzers
            • Gets doc value aggregator
            • Gets the token filters
            • Replaces escaped characters in a string
            • Analyze values
            • Closes a routing table
            • Create a new token filter
            • Gets the analyzer factories
            • This method creates temp file and uri
            • Creates a SplitPoints from a QUERY query
            • Create temp file and uri
            • Fetch dynamic nodes
            Get all kandi verified functions for this library.

            crate Key Features

            No Key Features are available at this moment for crate.

            crate Examples and Code Snippets

            No Code Snippets are available at this moment for crate.

            Community Discussions


            Different behavior between match and unwrap
            Asked 2022-Mar-15 at 18:39

            I have done a small program, and it shows a weird behavior that I cannot explain. I am using rodio crate to try out some audio stuff.

            I have done two programs that, in my opinion, should give the same result.

            The first one I use matches to handle errors:



            Answered 2021-Sep-30 at 19:08

            The issue is one of scoping and an implementation detail of rodio: the one critical item here is OutputStream::try_default(), it doesn't really matter how you handle Sink::try_new(&handle) it'll always behave the same, not so try_default, if you match or if let it it'll work fine, if you unwrap it it'll fail.

            But why would that be, the two should be equivalent. The answer is in the details of rodio, specifically of OutputStreamHandle:



            What is the built-in `#[main]` attribute?
            Asked 2022-Feb-15 at 23:57

            I have been using the #[tokio::main] macro in one of my programs. After importing main and using it unqualified, I encountered an unexpected error.



            Answered 2022-Feb-15 at 23:57

            #[main] is an old, unstable attribute that was mostly removed from the language in 1.53.0. However, the removal missed one line, with the result you see: the attribute had no effect, but it could be used on stable Rust without an error, and conflicted with imported attributes named main. This was a bug, not intended behaviour. It has been fixed as of nightly-2022-02-10 and 1.59.0-beta.8. Your example with use tokio::main; and #[main] can now run without error.

            Before it was removed, the unstable #[main] was used to specify the entry point of a program. Alex Crichton described the behaviour of it and related attributes in a 2016 comment on GitHub:

            Ah yes, we've got three entry points. I.. think this is how they work:

            • First, #[start], the receiver of int argc and char **argv. This is literally the symbol main (or what is called by that symbol generated in the compiler).
            • Next, there's #[lang = "start"]. If no #[start] exists in the crate graph then the compiler generates a main function that calls this. This functions receives argc/argv along with a third argument that is a function pointer to the #[main] function (defined below). Importantly, #[lang = "start"] can be located in a library. For example it's located in the standard library (libstd).
            • Finally, #[main], the main function for an executable. This is passed no arguments and is called by #[lang = "start"] (if it decides to). The standard library uses this to initialize itself and then call the Rust program. This, if not specified, defaults to fn main at the top.

            So to answer your question, this isn't the same as #[start]. To answer your other (possibly not yet asked) question, yes we have too many entry points.



            Specialising Range or overloading ".."
            Asked 2022-Feb-10 at 05:54

            I have a little library where I can define integer types. These are intended for type-safe indexing into arrays and strings in the kind of algorithms I often write. For example, I can use it to define an offset type, Offset and an index type, Idx such that you can get an Offset by subtracting two Idx, you can get Idx by adding or subtracting Offset, but you cannot for example multiple or add Idx.



            Answered 2022-Feb-10 at 05:54

            No, you can't.

            By definition of the orphan rules:

            Given impl Trait for T0, an impl is valid only if at least one of the following is true:

            • Trait is a local trait
            • All of
              • At least one of the types T0..=Tn must be a local type. Let Ti be the first such type.
              • No uncovered type parameters P1..=Pn may appear in T0..Ti (excluding Ti)

            Only the appearance of uncovered type parameters is restricted. Note that for the purposes of coherence, fundamental types are special. The T in Box is not considered covered, and Box is considered local.

            Local trait

            A trait which was defined in the current crate. A trait definition is local or not independent of applied type arguments. Given trait Foo, Foo is always local, regardless of the types substituted for T and U.

            Local type

            A struct, enum, or union which was defined in the current crate. This is not affected by applied type arguments. struct Foo is considered local, but Vec is not. LocalType is local. Type aliases do not affect locality.

            As neither Index nor Range nor Vec are local, and Range is not a fundamental type, you cannot impl Index<...>> for Vec, no matter what you put in the place of the ....

            The reason for these rules is that nothing prevents Range or Vec from implementing impl Index> for Vec. Such impl does not exist, and probably never will, but the rules are the same among all types, and in the general case this definitely can happen.

            You cannot overload the range operator either - it always creates a Range (or RangeInclusive, RangeFull, etc.).

            The only solution I can think about is to create a newtype wrapper for Vec, as suggested in the comments.

            If you want your vector to return a wrapped slice, you can use a bit of unsafe code:



            How to import a function in
            Asked 2022-Jan-31 at 19:19

            This may be a stupid question, but I cannot seem to solve this.

            I have this kind of file structure:



            Answered 2022-Jan-31 at 19:19

            There is no main module, even though you have a file. The stuff you put in the file are considered to be at the root of the crate.

            So you have two ways to call the function:

            1. Directly (w/o use)



            How to return JSON as a response in Rust Rocket with auto field deserialising?
            Asked 2022-Jan-29 at 09:52

            I'm trying to create a Printing Server in rust and face a problem when trying to send JSON as a response.

            I've found on the Rocket documentation that is really easy to send JSON as a response: You just have to use the Serde library.

            Unfortunatly, that wasn't so simple for me...

            Here is my current code :



            Answered 2021-Aug-06 at 14:23

            You are using rocket 0.5.0-rc.1 and rocket_contrib 0.4.10. While Json from rocket_contrib does implement Responder, it implements the Responder trait of Rocket v4, not that of Rocket v5.

            In Rocket v5, Json is not part of rocket_contib anymore, but included in the rocket crate (note that you need to enable the json feature on the rocket crate):



            How to get UniquePtr on the Rust side? (CXX crate)
            Asked 2022-Jan-27 at 20:47

            Using the cxx crate:

            I have the following struct on Rust:



            Answered 2022-Jan-27 at 20:47


            WASM from Rust not returning the expected types
            Asked 2022-Jan-18 at 09:48

            Hey @all I was playing with WebAssembly Studio and created an empty Rust project.

            In my Rust code, I'm returning the pointer and the length for my "Hello World" string. Compiling worked fine, but I was expecting the resulting WASM to have a function returning two i32. But I found a function taking one i32 and returning nothing.

            1. Why is the function not having the signature fn () -> (i32,i32) ?

            2. How am I supposed to extract the two values from the WASM module? (Using Rust-wasmtime)

            Below you can find the code snippets I'm talking about. Thanks in advance!



            Answered 2022-Jan-18 at 09:48

            WebAssembly got the ability to return multiple values just recently. The compiler used doesn't seem to support this yet or doesn't use it for compatibility reasons, i.e. for runtimes that don't know this feature yet.

            Therefore, the compiler rewrites the code as follows:



            Struct padding rules in Rust
            Asked 2022-Jan-05 at 06:29

            Recently when I was learning Type Layout in Rust (, I saw that struct in Rust supports the #[repr(C)] directive, so I wanna to see the difference between the default(Rust) representation and C-like representation. Here comes the code:



            Answered 2022-Jan-05 at 04:26

            This crate does not seem to account for field reordering. It appears the compiler reordered the struct to have upper first:



            What is "<[_]>" in Rust?
            Asked 2021-Dec-24 at 07:35

            In the vec! macro implementation there is this rule:



            Answered 2021-Dec-18 at 21:03

            Let's go step by step to see how <[_]>::into_vec(box [$($x),+]) produces a Vec:

            1. [$($x),+] expands to an array of input elements: [1, 2, 3]
            2. box ... puts that into a Box. box expressions are nightly-only syntax sugar for Box::new: box 5 is syntax sugar for Box::new(5) (actually it's the other way around: internally Box::new uses box, which is implemented in the compiler)
            3. <[_]>::into_vec(...) calls the to_vec method on a slice containing elements that have an inferred type ([_]). Wrapping the [_] in angled brackets is needed for syntactic reasons to call an method on a slice type. And into_vec is a function that takes a boxed slice and produces a Vec:



            Should I take `self` by value or mutable reference when using the Builder pattern?
            Asked 2021-Dec-19 at 02:26

            So far, I've seen two builder patterns in official Rust code and other crates:



            Answered 2021-Dec-19 at 02:26

            Is it beneficial to build multiple values from the same builder?

            • If yes, use &mut self
            • If no, use self

            Consider std::thread::Builder which is a builder for std::thread::Thread. It uses Option fields internally to configure how to build the thread:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install crate

            You can download it from GitHub.
            You can use crate 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 crate 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 For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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