vertical_merge_algorithm_min_bytes_to_activate
Minimal (approximate) uncompressed size in bytes in merging parts to activate Vertical merge algorithm.vertical_merge_algorithm_min_columns_to_activate
Minimal amount of non-PK columns to activate Vertical merge algorithm.vertical_merge_algorithm_min_rows_to_activate
Minimal (approximate) sum of rows in merging parts to activate Vertical merge algorithm.vertical_merge_optimize_lightweight_delete
If true, lightweight delete is optimized on vertical merge.vertical_merge_optimize_ttl_delete
If true, rows TTL delete is optimized on vertical merge only forMergeTree tables. Instead of
forcing horizontal merge, the TTL filter is evaluated and passed to the merging algorithm which
sets skip flags in row sources.