Joins

Not Supported

Data Model

Array / Matrix

Storage Model

Decomposition Storage Model (Columnar)

TileDB supports columnar format for different attributes stored in arrays.

Logging

Not Supported

TileDB does not support logging at the current stage.

Concurrency Control

Multi-version Concurrency Control (MVCC)

Reads and writes in TileDB are independent

Query Interface

Custom API

TileDB supports API for the following languages: C, C++, Python, Java, R, and Go.

Compression

Dictionary Encoding Run-Length Encoding

TileDB supports the following compressors: GZIP, Zstandard, LZ4, RLE, Bzip2, and Double-delta. Double-delta is a compressor created for TileDB, and is similar to Facebook's Gorilla system.

Storage Architecture

Disk-oriented

TileDB uses a disk-oriented storage format that can store dense and sparse array data and support fast updates.