Search Results for "format low level"

pgroll is an open-source command-line tool for performing zero-downtime, reversible schema migrations on PostgreSQL databases. It allows developers to define migrations using a high-level JSON format and manages the migration process to ensure application availability during schema changes.

...There are two version of this client, v1 and v2, available as separate branches. v1 is now in a state of maintenance, we will only accept PRs for bug and security fixes. Uses ClickHouse native format for optimal performance. Utilizes low level ch-go client for encoding/decoding and compression (versions >= 2.3.0). Supports native ClickHouse TCP client-server protocol. Compatibility with database/sql (slower than native interface!). Database/sql supports http protocol for transport. (Experimental). Marshal rows into structs (ScanStruct, Select). ...

FeatureBase is an Open Source, in-memory, MLAP engine providing SQL support, real-time updates, and analytical processing for your growing data. A binary tree index improves the performance & efficiency of analytical queries by reducing I/O operation. Simple or complex, FeatureBase knocks it out in milliseconds. On-the-fly updates and deletes. Operate instantly on your freshest data without the need for preaggregation. Built on bitmaps, FeatureBase offers up to 5-10X reduction in storage...

...It is designed from the ground up to address scalability issues around handling large amounts of financial market data used in algorithmic trading backtesting, charting, and analyzing price history with data spanning many years, and granularity down to tick-level for the all US equities or the exploding cryptocurrencies space. If you are struggling with managing lots of HDF5 files, this is perfect solution to your problem. The batteries are included with the basic install, you can start pulling crypto price data from GDAX and writing it to the db with a simple plugin configuration. MarketStore enables you to query DataFrame content over the network at as low latency as your local HDF5 files from disk.

CovenantSQL(CQL) is a decentralized, GDPR-compliant, trusted, SQL database with blockchain features. ServerLess: Free, High Availabile, Auto Sync Database Service for Serverless App. GDPR-compliant: Zero pain to be GDPR-compliant.. SQL: Most SQL-92 support. Decentralize: Running on Open Internet without Central Coordination. Privacy: Access with Granted Permission and Encryption Pass. Immutable: Query History in CQL is Immutable and Trackable. Permission: Column Level ACL and SQL Pattern...

...The goal of the project is to provide a simple, fast, and reliable database for projects that don't require a full database server such as Postgres or MySQL. Since Bolt is meant to be used as such a low-level piece of functionality, simplicity is key. The API will be small and only focus on getting values and setting values. That's it. Bolt is stable, the API is fixed, and the file format is fixed. Full unit test coverage and randomized black box testing are used to ensure database consistency and thread safety. Bolt is currently used in high-load production environments serving databases as large as 1TB. ...