[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian Jira (v8.3.2#803003)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian JIRA (v7.6.14#76016)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian JIRA (v7.6.14#76016)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian JIRA (v7.6.14#76016)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian JIRA (v7.6.14#76016)
[jira] [Updated] (HIVE-22079) Post order walker for iterating over expression tree
[ 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. -- This message was sent by Atlassian JIRA (v7.6.14#76016)