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| author | Jeff Davis <jdavis@postgresql.org> | 2014-05-04 13:18:55 -0700 |
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| committer | Jeff Davis <jdavis@postgresql.org> | 2014-05-06 19:27:43 -0700 |
| commit | 35c0cd3b05b0be18dc2d049c33b38a2d13993ffe (patch) | |
| tree | 5af0e7df971771484e8b7f976867ca89edf9889a /src/backend/utils/adt/jsonb_gin.c | |
| parent | 3a9d430af515e9dd8a9d34a4011367e667a66521 (diff) | |
| download | postgresql-35c0cd3b05b0be18dc2d049c33b38a2d13993ffe.tar.gz postgresql-35c0cd3b05b0be18dc2d049c33b38a2d13993ffe.zip | |
Improve comment for tricky aspect of index-only scans.
Index-only scans avoid taking a lock on the VM buffer, which would
cause a lot of contention. To be correct, that requires some intricate
assumptions that weren't completely documented in the previous
comment.
Reviewed by Robert Haas.
Diffstat (limited to 'src/backend/utils/adt/jsonb_gin.c')
0 files changed, 0 insertions, 0 deletions