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https://issues.apache.org/jira/browse/CALCITE-529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14245299#comment-14245299
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Vladimir Sitnikov commented on CALCITE-529:
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Not sure if {{java.sql.Types.JAVA_OBJECT}} and {{java.sql.Types.OTHER}} are
relevant here.
> Allow to pass java object via rexBuilder.makeLiteral()
> ------------------------------------------------------
>
> Key: CALCITE-529
> URL: https://issues.apache.org/jira/browse/CALCITE-529
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.0.0-incubating
> Reporter: Vladimir Sitnikov
> Assignee: Julian Hyde
> Labels: newbie
>
> Motivation: Rex is simpler that linq4j. For instance, sometimes it is easier
> to create a {{ProjectRel}} rather than lower the expression to low-level
> linq4j.
> For example:
> https://github.com/vlsi/mat-calcite-plugin/blob/master/MatCalcitePlugin/src/com/github/vlsi/mat/optiq/rules/InstanceAccessByClassIdRule.java#L43
> The problem is to pass non-literal java object to enumerable/interpreter
> conventions.
> For enumerable the implementation can use stash. For interpreter it can use
> the value as is, etc.
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