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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Issue Creation Checklist
- I have read the contribution guidelines
Feature Description
When SQL errors occur, make the 'mes
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
The array overlap operator, &&
, provides a convenient syntax for filtering for arrays that have one more more elements in common with another array. However, the &&
operator is not index accelerated, so an efficient inverted index scan in not planned. The current workaround is to rewrite the query by combining the containment operator with OR
expressions:
CREATE TABLE movies (
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Jan 31, 2022 - C++
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
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Jan 31, 2022 - C++
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.
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Jan 28, 2022 - C
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
When I try to connect dolt server using golang's go-sql-driver/mysql driver in multiple heads mode, It seems that go-sql-driver/mysql driver does't support database with a sub name. DSN string format in go-sql-driver/mysql like [username[:password]@][protocol[(address)]]/dbname[?param1=value1&...¶mN=valueN]. When dbname is "mydb", It works, but not work when dbname is "mydb/feature-branch".
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Dec 30, 2021 - JavaScript
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Jan 31, 2022 - Go
Hi,
my admin portal looks like this :
Version
- Server Installed 1.38.4
- Server Latest 1.38.4
- Web Installed -
- Web Latest 2.17.1
It seems that, at some point, 'GetInstalledWebVersion()' in 'Admin.dll' is called? Could anyone help me understand what do I need to check, to fix this?
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Jan 24, 2022 - Python
FEAT: IN operator
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Jan 24, 2022 - Go
Describe the bug
No response
To reproduce
create table pricetable2
(ts timestamp,symbolname SYMBOL CACHE ,price Double,aggregateTradeId Long,firstTradeId Long,lastTradeId Long,buyerMaker Boolean,qty Double)
partition by day;
Executes without error and crates table without designated timestamp partitioned by DAY
Expected Behavior
Create table query sh
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
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Jan 31, 2022 - Jupyter Notebook
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Jan 28, 2022 - C#
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Jan 17, 2022 - Go
lightning v5.3.0
After the content in parquet may be written by spark, the definition of bool is true or false. Regenerating the parquet file takes time, In tidb, bool behaves as tinyint, so proper type conversion will help improve the success rate of lightning import
parquet file:
![image](https://user-images.githubusercontent.com/21033020/147809823-214dcb34-0e10-4566-aa75-2109c0525144