compact_parts_* MergeTree table settings

View as MarkdownEdit this pageReport an issueSet up docs MCP

These settings are available in system.merge_tree_settings and are autogenerated from ClickHouse source.

compact_parts_max_bytes_to_buffer

Type

UInt64

Default

134217728

Only available in ClickHouse Cloud. Maximal number of bytes to write in a single stripe in compact parts

compact_parts_max_granules_to_buffer

Type

NonZeroUInt64

Default

128

Only available in ClickHouse Cloud. Maximal number of granules to write in a single stripe in compact parts

compact_parts_merge_max_bytes_to_prefetch_part

Type

UInt64

Default

16777216

Only available in ClickHouse Cloud. Maximal size of compact part to read it in a whole to memory during merge.