Обсуждение: pgsql: Change data type of counters in BufferUsage and WalUsage from lo
Change data type of counters in BufferUsage and WalUsage from long to int64. Previously long was used as the data type for some counters in BufferUsage and WalUsage. But long is only four byte, e.g., on Windows, and it's entirely possible to wrap a four byte counter. For example, emitting more than four billion WAL records in one transaction isn't actually particularly rare. To avoid the overflows of those counters, this commit changes the data type of them from long to int64. Suggested-by: Andres Freund Author: Masahiro Ikeda Reviewed-by: Fujii Masao Discussion: https://postgr.es/m/20201221211650.k7b53tcnadrciqjo@alap3.anarazel.de Discussion: https://postgr.es/m/af0964ac-7080-1984-dc23-513754987716@oss.nttdata.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/d780d7c0882fe9a385102b292907baaceb505ed0 Modified Files -------------- src/backend/access/heap/vacuumlazy.c | 6 ++--- src/backend/commands/explain.c | 48 ++++++++++++++++++------------------ src/include/executor/instrument.h | 24 +++++++++--------- 3 files changed, 39 insertions(+), 39 deletions(-)