Keh-Cheng Chu <kehch...@solar2.stanford.edu> writes:
> While 17 decimal digits are sufficient to guarantee the
> complete recovery of all 64-bit double values, some 32-bit
> reals actually require NINE significant figures.
Hm, annoying. Seems like we could do one of two things:
1. Increase the max extra_float_digits value to 3 and have pg_dump use
that.
2. Split extra_float_digits into two settings so that float4 and float8
can use different settings.
Offhand the only argument I can see for #2 is that #1 might bloat dump
files unnecessarily --- but it's not likely to be significant on a
percentage basis.
We'd also need to check the code to be sure it's leaving room for the
extra digit in all cases, though I doubt there's really any problem.
Comments?
regards, tom lane
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