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http://mifosforge.jira.com/browse/MIFOS-4700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
johnwoodlock resolved MIFOS-4700.
---------------------------------
Resolution: Fixed
Changes included in release G liquibase upgrade. Tested against a number of
production MFI databases including a GK backup from about a year ago
Notes that should go with Release G are in
http://mifosforge.jira.com/wiki/display/MIFOS/Release+G+Potentially+Large+DB+Changes+and+PreUpgrade+Option
> Removing currency indexes from schedule tables
> ----------------------------------------------
>
> Key: MIFOS-4700
> URL: http://mifosforge.jira.com/browse/MIFOS-4700
> Project: mifos
> Issue Type: Improvement
> Components: Database
> Affects Versions: Unscheduled
> Reporter: johnwoodlock
> Assignee: johnwoodlock
> Fix For: Release G
>
>
> The schedule tables (loan_schedule (13), loan_fee_schedule (2),
> customer_schedule (1), customer_fee_schedule (2) and savings_schedule (3))
> have a lot of indexes on currency id columns.
> They don't need any of them. Where more than one currency is catered for in
> mifos (not often) the 'group by' or currency access point would be on the
> account currency_id column.
> Hard to gauge the likely performance benefits... it will vary by size of MFI
> but better not to have them if not needed I think. (could run performance lab
> test on schedule creation but not sure its worth going to that effort).
> Certainly, there is a reduce disk space requirement e.g. about 40% for
> loan_schedule (though less for the others)
> For GK this would be an example of a script that can be run prior to an
> upgrade to save time (c.f. recent Liquibase work)
> Same is true on the big 'transaction' tables but that is on another Jira
> issue - mifos-4945
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