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https://issues.apache.org/jira/browse/HIVE-24519?focusedWorklogId=530546&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-530546
]
ASF GitHub Bot logged work on HIVE-24519:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 04/Jan/21 07:41
Start Date: 04/Jan/21 07:41
Worklog Time Spent: 10m
Work Description: kasakrisz commented on a change in pull request #1772:
URL: https://github.com/apache/hive/pull/1772#discussion_r551156318
##########
File path:
ql/src/test/results/clientpositive/llap/materialized_view_rebuild_2.q.out
##########
@@ -0,0 +1,171 @@
+PREHOOK: query: create table t1(col0 int) stored as orc TBLPROPERTIES
('transactional'='true')
+PREHOOK: type: CREATETABLE
+PREHOOK: Output: database:default
+PREHOOK: Output: default@t1
+POSTHOOK: query: create table t1(col0 int) stored as orc TBLPROPERTIES
('transactional'='true')
+POSTHOOK: type: CREATETABLE
+POSTHOOK: Output: database:default
+POSTHOOK: Output: default@t1
+PREHOOK: query: insert into t1(col0) values(1)
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+PREHOOK: Output: default@t1
+POSTHOOK: query: insert into t1(col0) values(1)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+POSTHOOK: Output: default@t1
+POSTHOOK: Lineage: t1.col0 SCRIPT []
+PREHOOK: query: create materialized view mat1 as
+select col0 from t1 where col0 = 1
+PREHOOK: type: CREATE_MATERIALIZED_VIEW
+PREHOOK: Input: default@t1
+PREHOOK: Output: database:default
+PREHOOK: Output: default@mat1
+POSTHOOK: query: create materialized view mat1 as
+select col0 from t1 where col0 = 1
+POSTHOOK: type: CREATE_MATERIALIZED_VIEW
+POSTHOOK: Input: default@t1
+POSTHOOK: Output: database:default
+POSTHOOK: Output: default@mat1
+Materialized view default.mat1 is up to date. Cancelling rebuild.
+PREHOOK: query: explain
+alter materialized view mat1 rebuild
+PREHOOK: type: ALTER_MATERIALIZED_VIEW_REBUILD
+POSTHOOK: query: explain
+alter materialized view mat1 rebuild
+POSTHOOK: type: ALTER_MATERIALIZED_VIEW_REBUILD
+STAGE DEPENDENCIES:
+
+STAGE PLANS:
+Materialized view default.mat1 is up to date. Cancelling rebuild.
+PREHOOK: query: alter materialized view mat1 rebuild
+PREHOOK: type: ALTER_MATERIALIZED_VIEW_REBUILD
+POSTHOOK: query: alter materialized view mat1 rebuild
+POSTHOOK: type: ALTER_MATERIALIZED_VIEW_REBUILD
+PREHOOK: query: insert into t1(col0) values(1)
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+PREHOOK: Output: default@t1
+POSTHOOK: query: insert into t1(col0) values(1)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+POSTHOOK: Output: default@t1
+POSTHOOK: Lineage: t1.col0 SCRIPT []
+PREHOOK: query: explain
+alter materialized view mat1 rebuild
+PREHOOK: type: QUERY
+PREHOOK: Input: default@t1
+PREHOOK: Output: default@mat1
+POSTHOOK: query: explain
+alter materialized view mat1 rebuild
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@t1
+POSTHOOK: Output: default@mat1
+STAGE DEPENDENCIES:
+ Stage-1 is a root stage
+ Stage-2 depends on stages: Stage-1
+ Stage-0 depends on stages: Stage-2
+ Stage-3 depends on stages: Stage-0
+ Stage-4 depends on stages: Stage-3
+
+STAGE PLANS:
+ Stage: Stage-1
+ Tez
+#### A masked pattern was here ####
+ Edges:
+ Reducer 2 <- Map 1 (CUSTOM_SIMPLE_EDGE)
+#### A masked pattern was here ####
+ Vertices:
+ Map 1
+ Map Operator Tree:
+ TableScan
+ alias: t1
+ filterExpr: ((ROW__ID.writeid > 1L) and (col0 = 1)) (type:
boolean)
+ Statistics: Num rows: 2 Data size: 8 Basic stats: COMPLETE
Column stats: COMPLETE
+ Filter Operator
+ predicate: ((ROW__ID.writeid > 1L) and (col0 = 1)) (type:
boolean)
+ Statistics: Num rows: 1 Data size: 4 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ expressions: 1 (type: int)
+ outputColumnNames: _col0
+ Statistics: Num rows: 1 Data size: 4 Basic stats:
COMPLETE Column stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 1 Data size: 4 Basic stats:
COMPLETE Column stats: COMPLETE
+ table:
+ input format:
org.apache.hadoop.hive.ql.io.orc.OrcInputFormat
+ output format:
org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat
+ serde: org.apache.hadoop.hive.ql.io.orc.OrcSerde
+ name: default.mat1
+ Select Operator
+ expressions: _col0 (type: int)
+ outputColumnNames: col0
+ Statistics: Num rows: 1 Data size: 4 Basic stats:
COMPLETE Column stats: COMPLETE
+ Group By Operator
+ aggregations: min(col0), max(col0), count(1),
count(col0), compute_bit_vector(col0, 'hll')
+ minReductionHashAggr: 0.4
+ mode: hash
+ outputColumnNames: _col0, _col1, _col2, _col3, _col4
+ Statistics: Num rows: 1 Data size: 168 Basic stats:
COMPLETE Column stats: COMPLETE
+ Reduce Output Operator
+ null sort order:
+ sort order:
+ Statistics: Num rows: 1 Data size: 168 Basic
stats: COMPLETE Column stats: COMPLETE
+ value expressions: _col0 (type: int), _col1 (type:
int), _col2 (type: bigint), _col3 (type: bigint), _col4 (type: binary)
+ Execution mode: llap
+ LLAP IO: may be used (ACID table)
+ Reducer 2
+ Execution mode: llap
+ Reduce Operator Tree:
+ Group By Operator
+ aggregations: min(VALUE._col0), max(VALUE._col1),
count(VALUE._col2), count(VALUE._col3), compute_bit_vector(VALUE._col4)
+ mode: mergepartial
+ outputColumnNames: _col0, _col1, _col2, _col3, _col4
+ Statistics: Num rows: 1 Data size: 168 Basic stats: COMPLETE
Column stats: COMPLETE
+ Select Operator
+ expressions: 'LONG' (type: string), UDFToLong(_col0) (type:
bigint), UDFToLong(_col1) (type: bigint), (_col2 - _col3) (type: bigint),
COALESCE(ndv_compute_bit_vector(_col4),0) (type: bigint), _col4 (type: binary)
+ outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5
+ Statistics: Num rows: 1 Data size: 264 Basic stats: COMPLETE
Column stats: COMPLETE
+ File Output Operator
+ compressed: false
+ Statistics: Num rows: 1 Data size: 264 Basic stats:
COMPLETE Column stats: COMPLETE
+ table:
+ input format:
org.apache.hadoop.mapred.SequenceFileInputFormat
+ output format:
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
+ serde:
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+
+ Stage: Stage-2
+ Dependency Collection
+
+ Stage: Stage-0
+ Move Operator
+ tables:
+ replace: false
+ table:
+ input format: org.apache.hadoop.hive.ql.io.orc.OrcInputFormat
+ output format: org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat
+ serde: org.apache.hadoop.hive.ql.io.orc.OrcSerde
+ name: default.mat1
+
+ Stage: Stage-3
+ Stats Work
+ Basic Stats Work:
+ Column Stats Desc:
+ Columns: col0
+ Column Types: int
+ Table: default.mat1
+
+ Stage: Stage-4
+ Materialized View Update
+ name: default.mat1
+ update creation metadata: true
+
+PREHOOK: query: alter materialized view mat1 rebuild
+PREHOOK: type: QUERY
+PREHOOK: Input: default@t1
+PREHOOK: Output: default@mat1
+POSTHOOK: query: alter materialized view mat1 rebuild
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@t1
+POSTHOOK: Output: default@mat1
+POSTHOOK: Lineage: mat1.col0 SIMPLE []
Review comment:
Added.
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Issue Time Tracking
-------------------
Worklog Id: (was: 530546)
Time Spent: 1h 10m (was: 1h)
> Optimize MV: Materialized views should not rebuild when tables are not
> modified
> -------------------------------------------------------------------------------
>
> Key: HIVE-24519
> URL: https://issues.apache.org/jira/browse/HIVE-24519
> Project: Hive
> Issue Type: Sub-task
> Components: Materialized views
> Reporter: Rajesh Balamohan
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> e.g
> {noformat}
> create materialized view c_c_address as
> select c_customer_sk from customer c, customer_address ca where
> c_current_addr_sk = ca.ca_address_id;
> ALTER MATERIALIZED VIEW c_c_address REBUILD; <-- This shouldn't trigger
> rebuild, when source tables are not modified
> {noformat}
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