perf: improve performance of bytea string decoding #2320
Merged
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improve the parsing of bytea hex encoded string by making a lookup table
for each of the valid ascii code points to the 4 bit numeric value
This is inspired by #2232
The length in this jmh bench mark is length of the hex string, so resulting byte[] is half that length.
At small sizes, there is very little difference, but as the sizes get larger, the differences are substantial.
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