Description
It appears that some rare old databases may contains the same record (same classname and number) with the same fullname, but one of them precise the database name while the other don't. This cause the R40000XWIKI6990 migration to fails, since ids for the two record result to the same value.
To properly clean a MySQL database before migrating to 4.x, you may use the following SQL statements:
delete s1 from xwikistatsdoc s1 join xwikistatsdoc s2 on s1.XWS_NUMBER=s2.XWS_NUMBER and s1.XWS_CLASSNAME=s2.XWS_CLASSNAME where (position(':' in s1.XWS_NAME) != 0 and s2.XWS_NAME = trim(leading ':' from substring(s1.XWS_NAME from position(':' in s1.XWS_NAME)))); delete s1 from xwikistatsreferer s1 join xwikistatsreferer s2 on s1.XWR_NUMBER=s2.XWR_NUMBER and s1.XWR_CLASSNAME=s2.XWR_CLASSNAME where (position(':' in s1.XWR_NAME) != 0 and s2.XWR_NAME = trim(leading ':' from substring(s1.XWR_NAME from position(':' in s1.XWR_NAME)))); delete s1 from xwikistatsvisit s1 join xwikistatsvisit s2 on s1.XWV_NUMBER=s2.XWV_NUMBER and s1.XWV_CLASSNAME=s2.XWV_CLASSNAME where (position(':' in s1.XWV_NAME) != 0 and s2.XWV_NAME = trim(leading ':' from substring(s1.XWV_NAME from position(':' in s1.XWV_NAME))));
Attachments
Issue Links
- relates to
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XWIKI-8129 Old stats table may contains the same record with two different className
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- Open
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