Update merge-tree-settings.md

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## check_sample_column_is_correct {#check_sample_column_is_correct}
Enables to check column for sampling or sampling expression is correct at creation table.
Enables to check column for sampling or sampling expression is correct at table creation.
Possible values:
- true — Check column or sampling expression is correct at creation table
- false — Check column or sampling expression is at creation table will be ignored.
- true — Check column or sampling expression is correct during table creation
- false — Check column or sampling expression is at table creation will be ignored.
Default value: `true`.
By default, the ClickHouse server check column for sampling or sampling expression at creation table. If you already had tables with incorrect sampling expression, set value `false` to make ClickHouse server do not raise exception when ClickHouse server is starting.
By default, the ClickHouse server check column for sampling or sampling expression at table creation. If you already had tables with incorrect sampling expression, set value `false` to make ClickHouse server do not raise exception when ClickHouse server is starting.
[Original article](https://clickhouse.tech/docs/en/operations/settings/merge_tree_settings/) <!--hide-->