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https://issues.apache.org/jira/browse/DRILL-707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Meng updated DRILL-707:
----------------------------
Description:
-Drill C++ client needs to support selection vector.-
The drillbit should never be sending sv2 to client.
Queries with limit operator will return record batch with selection vector as
true.
For example, given the following hive table,
{code}
+------------+------------+
| keycolumn | column1 |
+------------+------------+
| Zero | 0 |
| One | 1 |
| MinusOne | -1 |
| Two | 2 |
| MaxTInt | 127 |
| MinTInt | -128 |
| MaxUTInt | 255 |
| MaxTIntP1 | 128 |
| MinTIntM1 | -129 |
| MaxUTIntP1 | 256 |
| MaxSInt | 32767 |
| MinSInt | -32768 |
| MaxUSInt | 65535 |
| MinSIntM1 | -32769 |
| MaxSIntP1 | 32768 |
| MaxUSIntP1 | 65536 |
| MaxInt | 2147483647 |
| MinInt | -2147483648 |
| MaxUInt | 4294967295 |
| MaxIntP1 | 2147483648 |
| MinIntM1 | -2147483649 |
| MaxUIntP1 | 4294967296 |
| MaxBInt | 9223372036854775807 |
| MinBInt | -9223372036854775808 |
+------------+------------+
{code}
We issue the following two queries:
Query 1:
{code}
select column1 from hivestg.`bigint_table` where keycolumn='Zero'
{code}
Query 2:
{code}
select column1 from hivestg.`bigint_table` limit 1
{code}
Query 2 will return record batch with is_section_vector_2 as true
was:
Drill C++ client needs to support selection vector.
Some queries will return record batch with selection vector as true.
For example, given the following hive table,
{code}
+------------+------------+
| keycolumn | column1 |
+------------+------------+
| Zero | 0 |
| One | 1 |
| MinusOne | -1 |
| Two | 2 |
| MaxTInt | 127 |
| MinTInt | -128 |
| MaxUTInt | 255 |
| MaxTIntP1 | 128 |
| MinTIntM1 | -129 |
| MaxUTIntP1 | 256 |
| MaxSInt | 32767 |
| MinSInt | -32768 |
| MaxUSInt | 65535 |
| MinSIntM1 | -32769 |
| MaxSIntP1 | 32768 |
| MaxUSIntP1 | 65536 |
| MaxInt | 2147483647 |
| MinInt | -2147483648 |
| MaxUInt | 4294967295 |
| MaxIntP1 | 2147483648 |
| MinIntM1 | -2147483649 |
| MaxUIntP1 | 4294967296 |
| MaxBInt | 9223372036854775807 |
| MinBInt | -9223372036854775808 |
+------------+------------+
{code}
We issue the following two queries:
Query 1:
{code}
select column1 from hivestg.`bigint_table` where keycolumn='Zero'
{code}
Query 2:
{code}
select column1 from hivestg.`bigint_table` limit 1
{code}
Query 2 will return record batch with is_section_vector_2 as true
> Limit Operator incorrectly reports sv2 mode
> -------------------------------------------
>
> Key: DRILL-707
> URL: https://issues.apache.org/jira/browse/DRILL-707
> Project: Apache Drill
> Issue Type: New Feature
> Components: Client - C++
> Reporter: Xiao Meng
> Assignee: Jinfeng Ni
> Attachments: Q1vsQ2.png
>
>
> -Drill C++ client needs to support selection vector.-
> The drillbit should never be sending sv2 to client.
> Queries with limit operator will return record batch with selection vector as
> true.
> For example, given the following hive table,
> {code}
> +------------+------------+
> | keycolumn | column1 |
> +------------+------------+
> | Zero | 0 |
> | One | 1 |
> | MinusOne | -1 |
> | Two | 2 |
> | MaxTInt | 127 |
> | MinTInt | -128 |
> | MaxUTInt | 255 |
> | MaxTIntP1 | 128 |
> | MinTIntM1 | -129 |
> | MaxUTIntP1 | 256 |
> | MaxSInt | 32767 |
> | MinSInt | -32768 |
> | MaxUSInt | 65535 |
> | MinSIntM1 | -32769 |
> | MaxSIntP1 | 32768 |
> | MaxUSIntP1 | 65536 |
> | MaxInt | 2147483647 |
> | MinInt | -2147483648 |
> | MaxUInt | 4294967295 |
> | MaxIntP1 | 2147483648 |
> | MinIntM1 | -2147483649 |
> | MaxUIntP1 | 4294967296 |
> | MaxBInt | 9223372036854775807 |
> | MinBInt | -9223372036854775808 |
> +------------+------------+
> {code}
> We issue the following two queries:
> Query 1:
> {code}
> select column1 from hivestg.`bigint_table` where keycolumn='Zero'
> {code}
> Query 2:
> {code}
> select column1 from hivestg.`bigint_table` limit 1
> {code}
> Query 2 will return record batch with is_section_vector_2 as true
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