Storage Engine Parts & Background Merges Partitions Compression

Storage Engine

Storage Engine

How ClickHouse actually stores rows on disk.

How ClickHouse actually stores rows on disk.

Sections

4.1
Parts & Background MergesHow writes become storage
4.2
PartitionsSplitting data on disk
4.3
CompressionCodecs & column encoding

Arrays, Maps & JSON

Array, Tuple, Map, Nested, JSON

Parts & Background Merges

How writes become storage