[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-26 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Fix Version/s: 4.0.0
   Resolution: Fixed
   Status: Resolved  (was: Patch Available)

Pushed to master

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch, HIVE-22079.9.patch
>
>  Time Spent: 1h
>  Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-25 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch, HIVE-22079.9.patch
>
>  Time Spent: 1h
>  Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-25 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch, HIVE-22079.9.patch
>
>  Time Spent: 1h
>  Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-25 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.9.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch, HIVE-22079.9.patch
>
>  Time Spent: 1h
>  Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-24 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch
>
>  Time Spent: 50m
>  Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-24 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch
>
>  Time Spent: 50m
>  Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-24 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.8.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch, HIVE-22079.8.patch
>
>  Time Spent: 50m
>  Remaining Estimate: 0h
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-21 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ASF GitHub Bot updated HIVE-22079:
--
Labels: pull-request-available  (was: )

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
>  Labels: pull-request-available
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-20 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-20 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-20 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.7.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, 
> HIVE-22079.6.patch, HIVE-22079.7.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-19 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, HIVE-22079.6.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-19 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.6.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, HIVE-22079.6.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-19 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch, HIVE-22079.6.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-13 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-13 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-13 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.5.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch, HIVE-22079.5.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-11 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.4.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-11 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-11 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch, HIVE-22079.4.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-09 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-09 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-09-09 Thread Vineet Garg (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.3.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch, 
> HIVE-22079.3.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-08-05 Thread Vineet Garg (JIRA)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.2.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-08-05 Thread Vineet Garg (JIRA)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-08-05 Thread Vineet Garg (JIRA)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Open  (was: Patch Available)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch, HIVE-22079.2.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-08-02 Thread Vineet Garg (JIRA)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Status: Patch Available  (was: Open)

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree

2019-08-02 Thread Vineet Garg (JIRA)


 [ 
https://issues.apache.org/jira/browse/HIVE-22079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vineet Garg updated HIVE-22079:
---
Attachment: HIVE-22079.1.patch

> Post order walker for iterating over expression tree
> 
>
> Key: HIVE-22079
> URL: https://issues.apache.org/jira/browse/HIVE-22079
> Project: Hive
>  Issue Type: Improvement
>  Components: Logical Optimizer, Physical Optimizer
>Affects Versions: 4.0.0
>Reporter: Vineet Garg
>Assignee: Vineet Garg
>Priority: Major
> Attachments: HIVE-22079.1.patch
>
>
> Current {{DefaultGraphWalker}} is used to iterate over an expression tree. 
> This walker uses hash map to keep track of visited/processed nodes. If an 
> expression tree is large this adds significant overhead due to map lookup.
> For an expression trees we can instead use post order traversal and avoid 
> using map.



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