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29 lines
893 B
Markdown
29 lines
893 B
Markdown
# RESET SETTING {#alter_reset_setting}
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This query resets table settings to their default values. Several settings may be reset in a single query.
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If a setting was set previously then it is removed from table's metadata. If a setting has default value already then no action is taken.
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The query raises an exception if the setting does not exist.
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!!! note "Note"
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`RESET` statement can be applied only to [MergeTree](../../../engines/table-engines/mergetree-family/mergetree.md) tables.
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**Syntax**
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```sql
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ALTER TABLE [db.]table RESET SETTING setting_name [, ...];
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```
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**Example**
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```sql
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CREATE TABLE example_table (id UInt32, data String)
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ENGINE=MergeTree() ORDER BY id
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SETTINGS max_part_loading_threads=8;
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ALTER TABLE example_table RESET SETTING max_part_loading_threads;
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```
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**See Also**
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- [MergeTree settings](../../../operations/settings/merge-tree-settings.md)
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