Further portability tweaks for float4/float8 hash functions.
Attempting to make hashfloat4() look as much as possible like
hashfloat8(), I'd figured I could replace NaNs with get_float4_nan()
before widening to float8. However, results from protosciurus
and topminnow show that on some platforms that produces a different
bit-pattern from get_float8_nan(), breaking the intent of ce773f230.
Rearrange so that we use the result of get_float8_nan() for all NaN
cases. As before, back-patch.
Branch
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REL_14_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/718978d9daa7128e0f5e4e06c0fd402cdd63704f
Modified Files
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src/backend/access/hash/hashfunc.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)