Revise GIN README
We find GIN concurrency bugs from time to time. One of the problems here is
that concurrency of GIN isn't well-documented in README. So, it might be even
hard to distinguish design bugs from implementation bugs.
This commit revised concurrency section in GIN README providing more details.
Some examples are illustrated in ASCII art.
Also, this commit add the explanation of how is tuple layout in internal GIN
B-tree page different in comparison with nbtree.
Discussion: https://postgr.es/m/CAPpHfduXR_ywyaVN4%2BOYEGaw%3DcPLzWX6RxYLBncKw8de9vOkqw%40mail.gmail.com
Author: Alexander Korotkov
Reviewed-by: Peter Geoghegan
Backpatch-through: 9.4
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/32ca32d0bed4b95e5cd63998478a7816a89cd43d
Modified Files
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src/backend/access/gin/README | 214 ++++++++++++++++++++++++++++++++++--------
1 file changed, 176 insertions(+), 38 deletions(-)