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4a539a25eb
Previously pg_stat_statements calculated the difference of buffer counters by its own code even while BufferUsageAccumDiff() had the same code. This commit expose BufferUsageAccumDiff() and makes pg_stat_statements use it for the calculation, in order to simply the code. This change also would be useful for the upcoming patch for the planning counters in pg_stat_statements because the patch will add one more code for the calculation of difference of buffer counters and that can easily be done by using BufferUsageAccumDiff(). Author: Julien Rouhaud Reviewed-by: Fujii Masao Discussion: https://postgr.es/m/bdfee4e0-a304-2498-8da5-3cb52c0a193e@oss.nttdata.com |
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