[jira] [Commented] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"

2018-10-15 Thread Julian Hyde (JIRA)
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16649790#comment-16649790 ] Julian Hyde commented on CALCITE-2620: -- You’d be surprised how often “no brainer” optimizations

[jira] [Commented] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"

2018-10-14 Thread zhen wang (JIRA)
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16649717#comment-16649717 ] zhen wang commented on CALCITE-2620: [~pzw2018] while this optimization surely looks reasonable,

[jira] [Commented] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"

2018-10-12 Thread pengzhiwei (JIRA)
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16648733#comment-16648733 ] pengzhiwei commented on CALCITE-2620: - [~julianhyde],In  -CALCITE-2506- this issue has not fixed. I

[jira] [Commented] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"

2018-10-12 Thread Julian Hyde (JIRA)
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16648648#comment-16648648 ] Julian Hyde commented on CALCITE-2620: -- In the fix to CALCITE-2506 I see

[jira] [Commented] (CALCITE-2620) Simplify "coalesce(null,x)" to "x"

2018-10-11 Thread Haisheng Yuan (JIRA)
[ https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16646120#comment-16646120 ] Haisheng Yuan commented on CALCITE-2620: This can be fixed using patch in