system.merge_tree_settings

    • name (String) — Setting name.
    • value (String) — Setting value.
    • description (String) — Setting description.
    • type (String) — Setting type (implementation specific string value).
    • changed (UInt8) — Whether the setting was explicitly defined in the config or explicitly changed.
    1. Row 1:
    2. ──────
    3. name:        index_granularity
    4. value:       8192
    5. changed:     0
    6. description: How many rows correspond to one primary key value.
    7. type:        SettingUInt64
    8. Row 2:
    9. ──────
    10. name:        min_bytes_for_wide_part
    11. value:       0
    12. changed:     0
    13. description: Minimal uncompressed size in bytes to create part in wide format instead of compact
    14. type:        SettingUInt64
    16. Row 3:
    17. ──────
    18. name:        min_rows_for_wide_part
    19. value:       0
    20. description: Minimal number of rows to create part in wide format instead of compact
    21. type:        SettingUInt64
    23. Row 4:
    24. ──────
    25. name:        merge_max_block_size
    26. value:       8192
    27. changed:     0
    28. description: How many rows in blocks should be formed for merge operations.
    29. type:        SettingUInt64
    31. 4 rows in set. Elapsed: 0.001 sec.