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From "Christopher James Blythe (JIRA)" <>
Subject [jira] Updated: (DAYTRADER-25) Update decimal precision and indexes in ddl
Date Wed, 06 Dec 2006 20:25:21 GMT
     [ ]

Christopher James Blythe updated DAYTRADER-25:

    Attachment: daytrader-25.schema.patch

Here is a patch to fix the schema files associated with DT-14 (built against the 1.2 branch).

This updates the indexes and the decimal precision.

> Update decimal precision and indexes in ddl
> -------------------------------------------
>                 Key: DAYTRADER-25
>                 URL:
>             Project: DayTrader
>          Issue Type: Improvement
>            Reporter: Christopher James Blythe
>            Priority: Minor
>         Attachments: daytrader-25.schema.patch
> While working with previous versions of Trade, I found that the monetary values stored
in the database could overrun the decimal precision defined in the schema (10,2) if allowed
to run for an extended period of time. This would result in SQL exceptions related to data
> To prevent this we increased the decimal presion to (14,2)
> We also found that some of the indexs were not necessary and that others should be added.
> In addition to the primary keys, here are the indexes we found to be the most useful...
> CREATE INDEX a.profile_userid on accountejb(profile_userid);
> CREATE INDEX h.account_accountid on holdingejb(account_accountid);
> CREATE INDEX o.account_accountid on orderejb(account_accountid);
> CREATE INDEX o.holding_holdingid on orderejb(holding_holdingid);
> CREATE INDEX o.closed_orders on orderejb(account_accountid,orderstatus);
> Will wait to submit a patch until the fate of Daytrader-14 is determined.

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