For some reason I set the save format as: YY_mm_dd a long time ago, and now I need to sort posts by that value.
I’m afraid that if I simply change the save format to yymmdd now, I’ll lost 100+ posts’ date value…
What would you advise? Should I change the save format and then correct the dates already stored in the database somehow? They are saved as: 2011_06_23.
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