SQL
SQL stands for structured query language. It uses commands such as "select", "insert", "update", "delete". Some common relational database management systems that use SQL are: Oracle, MySQL, Microsoft SQL Server, PostgreSQL, etc.
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Sometimes it is needed to store compressed data in the DB. Unfortunately not all the DBs have built-in compression and FUSE compressed FSes are not available for every OS. So it may make sense to store compressed binary blobs in the DB.
Unfortunately when one sees them in DBeaver he sees them compressed, but often they are needed uncompressed. So it'd be nice to have a feature to decompress the
If I create any model with
charset: 'utf8mb4', collate: 'utf8mb4_general_ci'
sequelize translates it to this for mysql
CREATE TABLE IF NOT EXISTS tablename ... ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8mb4_general_ci;
On stepping through the code, it seems that the issu
Add basic CI
We already have some scripts in the scripts directory. It would be good to run them for every PR.
This is also a great task for beginners.
## Python/Regex fix
There are several optimization the execution engine can perform when evaluating LIKE patterns with %, which matches zero or any number of any character. For example, see #80073.
Sequential %s can prevent these optimizations, but they are semantically equivalent to a single %, so the optimizer should normalize them to a single %.
For example:
-- The following expressions ClickHouse® is a free analytics DBMS for big data
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Jun 1, 2022 - C++
SQL powered operating system instrumentation, monitoring, and analytics.
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Bug Description
taosBenchmark subscribe crash
To Reproduce
Steps to reproduce the behavior:
- Build taosd, taosBenchmark in latest develop branch
- go to 'TDengine/src/kit/taos-tools/example'
- execute taosBenchmark -f insert_csv.json
- execute taosBenchmark -f subscribe.json
Expected Behavior
taosBenchmark -f subscribe.json should not crash
Screenshots
N/A
Hi community,
This issue is for WeOpen-Star
We need to translate DistSQL cluster governance capabilities to English
Currently we only support Upsert for CockroachDB. Implementing same for MySQL should be pretty straightforward as well.
Wonder if we can also use INSERT ON CONFLICT UPDATE for PostgreSQL to ensure operation with same signature also works.
An open-source time-series SQL database optimized for fast ingest and complex queries. Packaged as a PostgreSQL extension.
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Describe the bug
Using a time dimension on a runningTotal measure on Snowflake mixes quoted and unquoted columns in the query. This fails the query, because Snowflake has specific rules about quoted columns. Specifically:
- All unquoted column names are treated as upper case
- Quoted column names are case sensitive.
So "date_from" <> date_from
To Reproduce
Steps to reproduce
Issue description
This option will improve performance in many scenarios
https://dev.mysql.com/worklog/task/?id=8134
https://www.facebook.com/weixiang.zhai/posts/678596755543802
The lightweight, distributed relational database built on SQLite
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May 28, 2022 - Go
A javascript library to run SQLite on the web.
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Jun 1, 2022 - JavaScript
The core infrastructure backend (API, database, Docker, etc).
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Jun 1, 2022 - C#
FEAT: IN operator
Database migrations. CLI and Golang library.
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May 29, 2022 - Go
Scenario
A user is ingesting some data (~300M rows) into a table with 270K distinct symbol values. For each of these 270K symbols we end up with at least one posix_fallocate() necessary to add a new value block. See the below flamegraph - it's quite illustrative.
An important part of the scenario is non-default index block capacity which is set to 2048. With the default capacity (w
This repository contains all the DSA (Data-Structures, Algorithms, 450 DSA by Love Babbar Bhaiya, FAANG Questions), Technical Subjects (OS + DBMS + SQL + CN + OOPs) Theory+Questions, FAANG Interview questions, and Miscellaneous Stuff (Programming MCQs, Puzzles, Aptitude, Reasoning). The Programming languages used for demonstration are C++, Python, and Java.
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May 31, 2022 - Jupyter Notebook
Quickstart review
- Missing information on how to create other databases
- Missing information on how to switch to other databases
- When using time travel, we don’t know where to get the transaction number from - we should show this to the user after committing data (this may be a missing capability in immudb / tools).
- The last long query example in the quick start is incorrect (incorrect
Modin: Speed up your Pandas workflows by changing a single line of code
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Jun 1, 2022 - Python
SQL databases in Python, designed for simplicity, compatibility, and robustness.
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May 25, 2022 - Python




Enhancement
Some system variables either have no type (default: TypeString) or use TypeString when they could use a different builtin type (TypeInt, TypeEnum, TypeBool) that is more suited. Here is what I found from manual inspection: