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Posted to issues@calcite.apache.org by "sunjincheng (JIRA)" <ji...@apache.org> on 2017/05/11 08:17:04 UTC
[jira] [Commented] (CALCITE-1780) Add `required Order` and
`requiresOver` parameters to the constructor of `SqlUserDefinedAggregate
Function`
[ https://issues.apache.org/jira/browse/CALCITE-1780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16006067#comment-16006067 ]
sunjincheng commented on CALCITE-1780:
--------------------------------------
It's required by [FLINK-6462 | https://issues.apache.org/jira/browse/FLINK-6462].
> Add `required Order` and `requiresOver` parameters to the constructor of `SqlUserDefinedAggregate Function`
> -----------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-1780
> URL: https://issues.apache.org/jira/browse/CALCITE-1780
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: sunjincheng
> Assignee: sunjincheng
>
> Currently {{org.apache.calcite.sql.validate.SqlUserDefinedAggFunction}} calls the constructor of SqlAggFunction:
> {code}
> Protected SqlAggFunction (
> String name,
> SqlIdentifier sqlIdentifier,
> SqlKind kind,
> SqlReturnTypeInference returnTypeInference,
> SqlOperandTypeInference operandTypeInference,
> SqlOperandTypeChecker operandTypeChecker,
> SqlFunctionCategory funcType,
> Boolean requiresOrder,
> Boolean requiresOver)
> {code}
> The requiresOrder = false, requiresOver = false. as follow:
> {code}
> Public SqlUserDefinedAggFunction (SqlIdentifier opName,
> SqlReturnTypeInference returnTypeInference,
> SqlOperandTypeInference operandTypeInference,
> SqlOperandTypeChecker operandTypeChecker, AggregateFunction function) {
> Super (Util.last (opName.names), opName, SqlKind.OTHER_FUNCTION,
> ReturnTypeInference, operandTypeInference, operandTypeChecker,
> SqlFunctionCategory.USER_DEFINED_FUNCTION, false, false);
> This.function = function;
> }
> {code}
> I want add `required Order` and `requiresOver` parameters to the constructor of `SqlUserDefinedAggregate Function`.
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