[
https://issues.apache.org/jira/browse/IGNITE-3325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15334040#comment-15334040
]
Pavel Tupitsyn edited comment on IGNITE-3325 at 6/29/16 12:50 PM:
------------------------------------------------------------------
There are other corner cases, like using same lambda argument twice in the
query.
To solve all the limitations once and for all, we should change the API from
{code}Compile(Func<T1, IQueryable<T>> query){code} to
{code}Compile(Expression<Func<T1, IQueryable<T>>> query){code}
This will allow to analyse expression in full detail and substitute arguments
in any order, and allow constants.
Old methods should be kept to preserve backwards compatibility.
Add a new class CompiledQuery2 (numeric suffix is according to Framework Design
Guidelines https://msdn.microsoft.com/en-us/library/ms229045(v=vs.110).aspx).
was (Author: ptupitsyn):
There are other corner cases, like using same lambda argument twice in the
query.
To solve all the limitations once and for all, we should change the API from
{code}Compile(Func<T1, IQueryable<T>> query){code} to
{code}Compile(Expression<Func<T1, IQueryable<T>>> query){code}
This will allow to analyse expression in full detail and substitute arguments
in any order, and allow constants.
Old methods should be kept to preserve backwards compatibility.
> .NET: LINQ Take method does not work within CompiledQuery
> ---------------------------------------------------------
>
> Key: IGNITE-3325
> URL: https://issues.apache.org/jira/browse/IGNITE-3325
> Project: Ignite
> Issue Type: Bug
> Components: community, platforms
> Affects Versions: 1.6
> Reporter: Pavel Tupitsyn
> Assignee: Pavel Tupitsyn
> Fix For: 1.7
>
>
> User reported that the following code fails with "Error compiling query: all
> compiled query arguments should come from enclosing delegate parameters."
> {code}
> Func<int,int,int,IQueryCursor<ICacheEntry<int, OrderEntity>>> qry =
> CompiledQuery.Compile((int x, int y,int z) =>
> orderCache.AsCacheQueryable().Where(e => e.Value.OrderId % x == z).Take(y));
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
