Explain subtlety in nbtree locking protocol.
The Postgres approach to coupling locks during an ascent of the tree is
slightly different to the approach taken by Lehman and Yao. Add a new
paragraph to the "Differences to the Lehman & Yao algorithm" section of
the nbtree README that explains the similarities and differences.
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/867d25ccb4c7f290d08c720622ecaae4afd1dc3f
Modified Files
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src/backend/access/nbtree/README | 27 ++++++++++++++++++++-------
src/backend/access/nbtree/nbtinsert.c | 3 +++
2 files changed, 23 insertions(+), 7 deletions(-)