[Help] how to copy the discuzX3.2 database? ---- The Attachment "appears, and the attachment cannot be read.

Discuzx3.2 ---- "Sorry, this attachment cannot be read" appears in the attachment. [the cause is found, the reason for the database, and the manual copy of the table information is too complicated. I hope you can make a move, automatic batch command synchronous replication: Why attachments cannot be read: pre_forum_attachment_0 to pre_forum...

Discuz x3.2 ---- the attachment "Sorry, this attachment cannot be read"

[The cause and database cause have been found. it is too complicated to manually copy the table information. I hope you can make a move and automatically copy the table using batch commands]

Why attachments cannot be read:
The aid tid pid uid in pre_forum_attachment_0 to pre_forum_attachment_9 and tableid are missing in the pre_forum_attachment section (the uploaded attachments can be downloaded later, but those uploaded earlier cannot be downloaded)

You have fixed several old attachments manually-they can be downloaded normally.

To find this reason, we all rely on guesses. because I do not understand database and database commands at all, I can only manually repair them one by one. this is inefficient and I am afraid to miss it.

Now I want to ask a huge user to give a [automatic batch command method, which can quickly and quickly split the table shards from pre_forum_attachment_0 to pre_forum_attachment_9 (only the aid tid pid uid tableid is required) copy to pre_forum_attachment (copy none, Skip existing )]

Reply content:

Discuz x3.2 ---- the attachment "Sorry, this attachment cannot be read"

[The cause and database cause have been found. it is too complicated to manually copy the table information. I hope you can make a move and automatically copy the table using batch commands]

Why attachments cannot be read:
The aid tid pid uid in pre_forum_attachment_0 to pre_forum_attachment_9 and tableid are missing in the pre_forum_attachment section (the uploaded attachments can be downloaded later, but those uploaded earlier cannot be downloaded)

You have fixed several old attachments manually-they can be downloaded normally.

To find this reason, we all rely on guesses. because I do not understand database and database commands at all, I can only manually repair them one by one. this is inefficient and I am afraid to miss it.

Now I want to ask a huge user to give a [automatic batch command method, which can quickly and quickly split the table shards from pre_forum_attachment_0 to pre_forum_attachment_9 (only the aid tid pid uid tableid is required) copy to pre_forum_attachment (copy none, Skip existing )]