Indhumathi27 commented on a change in pull request #4140:
URL: https://github.com/apache/carbondata/pull/4140#discussion_r644722715
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File path: docs/addsegment-guide.md
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@@ -17,41 +17,41 @@
# Heterogeneous format segments in carbondata
-###Background
+### Background
In the industry, many users already adopted to data with different formats
like ORC, Parquet, JSON, CSV etc.,
If users want to migrate to Carbondata for better performance or for better
features then there is no direct way.
All the existing data needs to be converted to Carbondata to migrate.
This solution works out if the existing data is less, what if the existing
data is more?
Heterogeneous format segments aims to solve this problem by avoiding data
conversion.
-###Add segment with path and format
+### Add segment with path and format
Users can add the existing data as a segment to the carbon table provided the
schema of the data
and the carbon table should be the same.
```
-Alter table table_name add segment options (‘path’=
'hdfs://usr/oldtable,'format'=parquet)
+alter table table_name add segment options ('path'=
'hdfs://usr/oldtable','format'='parquet')
```
In the above command user can add the existing data to the carbon table as a
new segment and also
can provide the data format.
During add segment, it will infer the schema from data and validates the
schema against the carbon table.
If the schema doesn’t match it throws an exception.
-###Changes to tablestatus file
-Carbon adds the new segment by adding segment information to tablestatus file.
In order to add the path and format information to tablestatus, we are going to
add `segmentPath` and ‘format’ to the tablestatus file.
+### Changes to tablestatus file
+Carbon adds the new segment by adding segment information to tablestatus file.
In order to add the path and format information to tablestatus, we are going to
add `segmentPath` and format to the tablestatus file.
Review comment:
```suggestion
Carbon adds the new segment by adding segment information to tablestatus
file. In order to add the path and format information to tablestatus, we are
going to add `segmentPath` and `format` to the tablestatus file.
```
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