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Merge pull request #6110 from BayoNet/en-docs/DOCAPI-7553

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DOCAPI-7553: CHECK TABLE for MergeTree docs update.
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Ivan Blinkov 2019-07-23 12:39:27 +03:00 committed by GitHub
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docs/en/query_language/misc.md
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@ -32,15 +32,16 @@ The query response contains the `result` column with a single row. The row has a
- 0 - The data in the table is corrupted.
- 1 - The data maintains integrity.
The `CHECK TABLE` query is only supported for the following table engines:
The `CHECK TABLE` query supports the following table engines:
- [Log](../operations/table_engines/log.md)
- [TinyLog](../operations/table_engines/tinylog.md)
- [StripeLog](../operations/table_engines/stripelog.md)
- [MergeTree family](../operations/table_engines/mergetree.md)
These engines do not provide automatic data recovery on failure. Use the `CHECK TABLE` query to track data loss in a timely manner.
The `*Log` engines do not provide automatic data recovery on failure. Use the `CHECK TABLE` query to track data loss in a timely manner.
To avoid data loss use the [MergeTree](../operations/table_engines/mergetree.md) family tables.
For the `MergeTree` family engines the `CHECK TABLE` query shows a check status for every individual table data part at the local server.
**If the data is corrupted**
@ -57,7 +58,7 @@ If the table is corrupted, you can copy the non-corrupted data to another table.
DESC|DESCRIBE TABLE [db.]table [INTO OUTFILE filename] [FORMAT format]
```
Returns the following `String` type columns:
Returns the following `String` type columns:
- `name` — Column name.
- `type`— Column type.