[jira] [Updated] (CALCITE-4932) Deprecate JdbcCalc and remove JdbcCalcRule

["Stamatis Zampetakis (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-4932?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stamatis Zampetakis updated CALCITE-4932:
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    Summary: Deprecate JdbcCalc and remove JdbcCalcRule  (was: Deprecate JdbcCalc and JdbcCalcRule)

> Deprecate JdbcCalc and remove JdbcCalcRule
> ------------------------------------------
>
>                 Key: CALCITE-4932
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4932
>             Project: Calcite
>          Issue Type: Task
>          Components: jdbc-adapter
>    Affects Versions: 1.28.0
>            Reporter: Francesco Gini
>            Assignee: Francesco Gini
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.29.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The jdbc adapter includes a node and rule for {{Calc}} ( {{{}JdbcCal{}}}c a {{JdbcCalcRule}} ). {{Calc}} is an operation that is introduced only later in the planner to optimise certain code generation and it is not needed for the jdbc adapter.
> As it stands the rule {{JdbcCalcRule}} is never triggered because the {{Jdbc}} convention rules are applied before the {{Calc}} node is introduced in the plan. However, if a user try to use a custom rule set they might end up with a {{JdbcCalc}} which introduces problems like the one described in https://issues.apache.org/jira/browse/CALCITE-4905 .
> Because {{JdbcCalc}} is not an optimisation needed for jdbc anyway we should deprecate {{JdbcCalc}} and its respective rule {{{}JdbcCalcRule{}}}. The rule should also be removed from {{JdbcRules.rules}}
> See ticket https://issues.apache.org/jira/browse/CALCITE-4905  for a discussion around deprecating {{JdbcCalc}}



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