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max_files_* MergeTree table settings

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

max_files_to_modify_in_alter_columns

Type
UInt64
Default
75

Do not apply ALTER if number of files for modification(deletion, addition) is greater than this setting.

Possible values:

  • Any positive integer.

Default value: 75

max_files_to_remove_in_alter_columns

Type
UInt64
Default
50

Do not apply ALTER, if the number of files for deletion is greater than this setting.

Possible values:

  • Any positive integer.
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