db-engine-paradigms | two types of relational query processing engines

by TimoKersten C++ Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | db-engine-paradigms Summary

db-engine-paradigms is a C++ library typically used in Template Engine applications. db-engine-paradigms has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Collection of experiments to carve out the differences between two types of relational query processing engines: Vectorizing (interpretation based) engines and compiling engines.

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db-engine-paradigms has a low active ecosystem.

It has 123 star(s) with 32 fork(s). There are 5 watchers for this library.

It had no major release in the last 6 months.

db-engine-paradigms has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of db-engine-paradigms is current.

Quality

db-engine-paradigms has 0 bugs and 0 code smells.

Security

db-engine-paradigms has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

db-engine-paradigms code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

db-engine-paradigms does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

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db-engine-paradigms releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

It has 152 lines of code, 7 functions and 1 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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db-engine-paradigms Key Features

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db-engine-paradigms Examples and Code Snippets

No Code Snippets are available at this moment for db-engine-paradigms.

Community Discussions

Trending Discussions on db-engine-paradigms

vector with reinterpret_cast

QUESTION

vector with reinterpret_cast

Asked 2019-Mar-13 at 20:25

The following code inserts only one value to the vector col. The code is extracted from DBMS code base (for importing files), specifically, it is from 1

The code uses void* to be able to read any field type (int, float, and so on).

...

ANSWER

Answered 2019-Mar-13 at 19:52

Your code is exhibiting undefined behavior.

std::vector and std::vector are two completely separate and unrelated types, you can't safely cast between them the way you are, especially since there is no guarantee that void* and int are the same byte size.

Cast the values you are pushing, don't cast the vector itself, eg:

Source https://stackoverflow.com/questions/55150001

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

Vulnerabilities

No vulnerabilities reported

Install db-engine-paradigms

A configuration file is provided to build this project with CMake. In the project directory run:. This creates among others the main binaries test_all and run_tpch. Use test_all to run unit tests and check whether your compilation worked. Our main binary run_tpch requires TPC-H tables as generated by the TPC-H dbgen tool. With these our experimental queries can be run on arbitrary scale factors.

Support

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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