[jira] Commented: (OFBIZ-3856) quicker picklist option functionality

["Joe Eckard (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OFBIZ-3856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12887455#action_12887455 ] 

Joe Eckard commented on OFBIZ-3856:
-----------------------------------

I'm also going to attach a slightly different version of a 'findOrdersToPick' service. I was hesitant to create a patch without a good set of test cases, since this version has not been extensively tested but it may be useful and relevant to this issue. (This also returns different data than is expected from the existing service so it is not a drop-in replacement)

> quicker picklist option functionality
> -------------------------------------
>
>                 Key: OFBIZ-3856
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-3856
>             Project: OFBiz
>          Issue Type: Improvement
>          Components: product
>    Affects Versions: Release 4.0, Release 09.04, SVN trunk
>            Reporter: Albert Mayo
>            Priority: Minor
>         Attachments: PickListServices.java, quicker picklist.diff
>
>
> I am noticing as our OFBiz database grows larger, it is taking the PicklistOptions longer to load. Even for a batch as small as 50 orders it can take up to a couple minutes to load.  300 orders can take upwards of 5-10 minutes.  My development system with much lesser hardware can get through a hundred orders in seconds, so I have a feeling it has to do with the process/code inefficiency.
> For instance, the picklistoptions function does the following (abbreviated):
> select * from OrderHeader
> for each orderHeader {
>     select * from OrderItemShipGroup where orderId = orderHeader.orderId
>     for each orderItemShipGroup in orderItemShipGroupList {
>         select * from OrderItemShipGrpInvRes where orderId = orderItemShipGroup.orderId;
>         for each orderItemShipGrpInvRes in orderItemShipGrpInvResList {
>             etc....
>          }
>     }
> }
> These kind of loops can create many hits to the database and greatly slow down the process, especially if the database tables have many records.  Our database is now almost 8 gigs.  The PicklistOptions process took ~4 minutes for 40 pickable orders. 
> I am using OFBiz 4.0, but the trunk version has a lot of the same code.  I am opening this ticket to start a conversation of a quicker method to create picklists, like with the use of views or DynamicViewEntitys. 

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