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As benchmarks show, using libc's string-to-integer conversion is pretty slow. At least part of the reason for that is that strtol[l] have to be more generic than what largely is required inside pg. This patch considerably speeds up int2/int4 input (int8 already was already using hand-rolled code). Most of the existing pg_atoi callers have been converted. But as one requires pg_atoi's custom delimiter functionality, and as it seems likely that there's external pg_atoi users, it seems sensible to just keep pg_atoi around. Author: Andres Freund Reviewed-By: Robert Haas Discussion: https://postgr.es/m/20171208214437.qgn6zdltyq5hmjpk@alap3.anarazel.de |
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