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https://issues.apache.org/jira/browse/HIVE-8168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mostafa Mokhtar updated HIVE-8168:
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Priority: Critical (was: Minor)
> With dynamic partition enabled fact table selectivity is not taken into
> account when generating the physical plan
> -----------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-8168
> URL: https://issues.apache.org/jira/browse/HIVE-8168
> Project: Hive
> Issue Type: Bug
> Components: Tez
> Affects Versions: 0.14.0
> Reporter: Mostafa Mokhtar
> Assignee: Gunther Hagleitner
> Priority: Critical
> Labels: performance
> Fix For: vectorization-branch, 0.14.0
>
>
> Vertex used to generate the partition pruning filters is not vectorized.
> Sample from the plan :
> {code}
> Vertices:
> Map 1
> Map Operator Tree:
> TableScan
> alias: d3
> filterExpr: ((d_quarter_name) IN ('2000Q1', '2000Q2',
> '2000Q3') and d_date_sk is not null) (type: boolean)
> Statistics: Num rows: 73049 Data size: 81741831 Basic
> stats: COMPLETE Column stats: NONE
> Filter Operator
> predicate: ((d_quarter_name) IN ('2000Q1', '2000Q2',
> '2000Q3') and d_date_sk is not null) (type: boolean)
> Statistics: Num rows: 18262 Data size: 20435178 Basic
> stats: COMPLETE Column stats: NONE
> Select Operator
> expressions: d_date_sk (type: int)
> outputColumnNames: _col0
> Statistics: Num rows: 18262 Data size: 20435178 Basic
> stats: COMPLETE Column stats: NONE
> Reduce Output Operator
> key expressions: _col0 (type: int)
> sort order: +
> Map-reduce partition columns: _col0 (type: int)
> Statistics: Num rows: 18262 Data size: 20435178 Basic
> stats: COMPLETE Column stats: NONE
> Select Operator
> expressions: _col0 (type: int)
> outputColumnNames: _col0
> Statistics: Num rows: 18262 Data size: 20435178 Basic
> stats: COMPLETE Column stats: NONE
> Group By Operator
> keys: _col0 (type: int)
> mode: hash
> outputColumnNames: _col0
> Statistics: Num rows: 18262 Data size: 20435178
> Basic stats: COMPLETE Column stats: NONE
> Dynamic Partitioning Event Operator
> Target Input: catalog_sales
> Partition key expr: cs_sold_date_sk
> Statistics: Num rows: 18262 Data size: 20435178
> Basic stats: COMPLETE Column stats: NONE
> Target column: cs_sold_date_sk
> Target Vertex: Map 3
> {code}
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