Обсуждение: pgsql: Ensure age() returns a stable value rather than the latest value

Ensure age() returns a stable value rather than the latest value

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/b06679e01244d33304b71a6a44c7cc86173617b3

Modified Files
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src/backend/access/transam/xact.c |   22 ++++++++++++++++++++++
src/backend/utils/adt/xid.c       |    8 +++-----
src/include/access/xact.h         |    1 +
3 files changed, 26 insertions(+), 5 deletions(-)