You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2018/11/08 18:05:00 UTC
[jira] [Updated] (CALCITE-2654) In RelBuilder, add a fluent API for
building complex aggregate calls
[ https://issues.apache.org/jira/browse/CALCITE-2654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Julian Hyde updated CALCITE-2654:
---------------------------------
Description:
In RelBuilder, add a fluent API for building complex aggregate calls. Currently, the RelBuilder.aggregateCall has arguments aggFunction, distinct, approximate, filter, orderKeys, alias and operands, and in CALCITE-2224 we're adding orderKeys. You have to specify all of them, whether or not your function is DISTINCT or has a FILTER(WHERE) clause.
The new API would be simple:
* {{RelBuilder.aggregateCall(op, operands)}}
* {{RelBuilder.sum(operand)}}
* {{RelBuilder.count(operands)}}
* {{RelBuilder.min(operands)}}
and so forth. Each of these returns an AggCall, and we propose to add fluent methods to that:
* {{AggCall.distinct(boolean)}}
* {{AggCall.approximate(boolean)}}
* {{AggCall.alias(String)}}
* {{AggCall.filter(RexNode)}}
* {{AggCall.sort(RexNode...)}} (for CALCITE-2224)
Thus you can write {{builder.sum(builder.field("SAL)).distinct(true).alias("SUM_SAL")}}.
was:
In RelBuilder, add a fluent API for building complex aggregate calls. Currently, the RelBuilder.aggregateCall has arguments aggFunction, distinct, approximate, filter, orderKeys,
alias and operands, and in CALCITE-2224 we're adding orderKeys. You have to specify all of them, whether or not your function is DISTINCT or has a FILTER(WHERE) clause.
The new API would be simple:
* {{RelBuilder.aggregateCall(op, operands)}}
* {{RelBuilder.sum(operand)}}
* {{RelBuilder.count(operands)}}
* {{RelBuilder.min(operands)}}
and so forth. Each of these returns an AggCall, and we propose to add fluent methods to that:
* {{AggCall.distinct(boolean)}}
* {{AggCall.approximate(boolean)}}
* {{AggCall.alias(String)}}
* {{AggCall.filter(RexNode)}}
* {{AggCall.sort(RexNode...)}} (for CALCITE-2224)
Thus you can write {{builder.sum(builder.field("SAL)).distinct(true).alias("SUM_SAL")}}.
> In RelBuilder, add a fluent API for building complex aggregate calls
> --------------------------------------------------------------------
>
> Key: CALCITE-2654
> URL: https://issues.apache.org/jira/browse/CALCITE-2654
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Priority: Major
>
> In RelBuilder, add a fluent API for building complex aggregate calls. Currently, the RelBuilder.aggregateCall has arguments aggFunction, distinct, approximate, filter, orderKeys, alias and operands, and in CALCITE-2224 we're adding orderKeys. You have to specify all of them, whether or not your function is DISTINCT or has a FILTER(WHERE) clause.
> The new API would be simple:
> * {{RelBuilder.aggregateCall(op, operands)}}
> * {{RelBuilder.sum(operand)}}
> * {{RelBuilder.count(operands)}}
> * {{RelBuilder.min(operands)}}
> and so forth. Each of these returns an AggCall, and we propose to add fluent methods to that:
> * {{AggCall.distinct(boolean)}}
> * {{AggCall.approximate(boolean)}}
> * {{AggCall.alias(String)}}
> * {{AggCall.filter(RexNode)}}
> * {{AggCall.sort(RexNode...)}} (for CALCITE-2224)
> Thus you can write {{builder.sum(builder.field("SAL)).distinct(true).alias("SUM_SAL")}}.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)