[jira] [Comment Edited] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16648733#comment-16648733 ] pengzhiwei edited comment on CALCITE-2620 at 10/13/18 4:10 AM: --- [~julianhyde],In -CALCITE-2506- this issue has not fixed. I fix it in the [PR882|https://github.com/apache/calcite/pull/882] ,Please take a look. was (Author: pzw2018): [~julianhyde],In -CALCITE-2506- this issue has not fixed. I fix it in the [PR882|https://github.com/apache/calcite/pull/882] > Simplify "coalesce(null,x)" to "x" > -- > > Key: CALCITE-2620 > URL: https://issues.apache.org/jira/browse/CALCITE-2620 > Project: Calcite > Issue Type: Improvement > Components: core >Affects Versions: 1.18.0 >Reporter: pengzhiwei >Assignee: Julian Hyde >Priority: Major > > "coalesce(x0,x1,.)" can be simplified if any of "xi" is null literal. > e.g. "coalesce(null,x)" can simplify to "x", "coalesce(x,null,y)" can > simplify to "coalesce(x,y)" -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Comment Edited] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16648733#comment-16648733 ] pengzhiwei edited comment on CALCITE-2620 at 10/13/18 4:09 AM: --- [~julianhyde],In -CALCITE-2506- this issue has not fixed. I fix it in the [PR882|https://github.com/apache/calcite/pull/882] was (Author: pzw2018): [~julianhyde],In -CALCITE-2506- this issue has not fixed. I fix it in the [PR882|https://github.com/apache/calcite/pull/882] > Simplify "coalesce(null,x)" to "x" > -- > > Key: CALCITE-2620 > URL: https://issues.apache.org/jira/browse/CALCITE-2620 > Project: Calcite > Issue Type: Improvement > Components: core >Affects Versions: 1.18.0 >Reporter: pengzhiwei >Assignee: Julian Hyde >Priority: Major > > "coalesce(x0,x1,.)" can be simplified if any of "xi" is null literal. > e.g. "coalesce(null,x)" can simplify to "x", "coalesce(x,null,y)" can > simplify to "coalesce(x,y)" -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Comment Edited] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16648733#comment-16648733 ] pengzhiwei edited comment on CALCITE-2620 at 10/13/18 4:09 AM: --- [~julianhyde],In -CALCITE-2506- this issue has not fixed. I fix it in the [PR882|https://github.com/apache/calcite/pull/882] was (Author: pzw2018): [~julianhyde],In -CALCITE-2506- this issue has not fixed. I fix it in the [PR882|[http://example.com|https://github.com/apache/calcite/pull/882]] > Simplify "coalesce(null,x)" to "x" > -- > > Key: CALCITE-2620 > URL: https://issues.apache.org/jira/browse/CALCITE-2620 > Project: Calcite > Issue Type: Improvement > Components: core >Affects Versions: 1.18.0 >Reporter: pengzhiwei >Assignee: Julian Hyde >Priority: Major > > "coalesce(x0,x1,.)" can be simplified if any of "xi" is null literal. > e.g. "coalesce(null,x)" can simplify to "x", "coalesce(x,null,y)" can > simplify to "coalesce(x,y)" -- This message was sent by Atlassian JIRA (v7.6.3#76005)
