Re: improve performance of pg_dump with many sequences

I'm not following why that would be a better approach.  strncpy() will add

a NUL to the end of the string unless it doesn't fit in the buffer, in

which case we'll add our own via "seqtype[sizeof(seqtype) - 1] = '\0'".

Furthermore, the compiler can determine the position where the NUL should

be placed, whereas placing it at the end of the copied string requires a

runtime strlen().

Unfortunately, I think we have to keep this workaround since older minor

releases of PostgreSQL don't have the fix.

What pg_dump command did you test here?  Did you dump the sequence data, or

was this --schema-only?