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[CARBONDATA-4232] Add missing doc change for secondary index.
Why is this PR needed?
Documentation changes were not handled in PR 4116

What changes were proposed in this PR?
Added missing documentation.

This closes #4164
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nihal0107 authored and Indhumathi27 committed Jul 7, 2021
1 parent c7a3d6d commit 88fdf60c789f1404bcb95360a4fa3a2c26d3f57c
Showing 1 changed file with 5 additions and 3 deletions.
@@ -118,9 +118,11 @@ also load data to the SI table with the same number of segments as the main tabl
the main table will also load data to the SI table.

**NOTE**:
* In case of data load failure to the SI table, then we make the SI table disable by setting a hive serde
property. The subsequent main table load will load the old failed loads along with current load and
makes the SI table enable and available for query.
* In case of data load failure to the SI table, segments of main table and SI table will not be in sync.
In this scenario the subsequent query pruning will be performed at segment level. It means all successful SI segments
will be pruned with SI table and rest of the segment pruning will be performed with help of main table.
The subsequent main table load will load the old failed loads along with current load and
makes the SI and main table segments in sync.

## Querying data
Direct query can be made on SI tables to check the data present in position reference columns.

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