Version upgrade and structure table obsolete data

User d68ef9d5a9

10-12-2004 15:27:06

Hi,





I am upgrading JChem from 2.3.3. to 3.0.1, and I run into this problem.





error message The structure table contains obsolete data. Please regenerate the table





We had same problem before during similar upgrade. It is probably because the structure database table created in a 2.3.3 version cannot be reused in new version. I understand I can regenerate table through jcman. But my question is that Will the regeneration of structure table affect my millions of structures in my table? Is it required to export data and import data again after table regenerated? I am very concerned about this.





Thank in advance for your help.





Benjamin Li

ChemAxon 9c0afc9aaf

13-12-2004 12:16:44

Hi,





Don't worry, regeneration does not modify your structures at all !





It only recalculates the columns containing generated information about the structure.


(fingerprints, cd_smiles, etc.)


This is essential for correct search results.





You do not have to export/import the structures.





You can find more information here:





http://www.jchem.com/doc/admin/index.html#regener