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Update mergetree.md

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TTL examples
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Denis Zhuravlev 2019-09-06 12:28:33 -03:00 committed by GitHub
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docs/en/operations/table_engines/mergetree.md
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@ -402,13 +402,13 @@ ENGINE = MergeTree
PARTITION BY toYYYYMM(d)
ORDER BY d;
// adding TTL to a column of an existing table
-- adding TTL to a column of an existing table
ALTER TABLE example_table
MODIFY COLUMN
c String TTL d + interval 1 day;
// altering TTL of the column
-- altering TTL of the column
ALTER TABLE example_table
MODIFY COLUMN