How the ClickHouse Log Engine Stores Rows in Append-Only Files with a Marks Index
Log stores one .bin per column stream plus a __marks.mrk file of (rows, offset) pairs, and truncates files back to a recorded size after a crash.
Log stores one .bin per column stream plus a __marks.mrk file of (rows, offset) pairs, and truncates files back to a recorded size after a crash.