Reduce spurious Hot Standby conflicts from never-visible records.
Hot Standby conflicts only with tuples that were visible at
some point. So ignore tuples from aborted transactions or for
tuples updated/deleted during the inserting transaction when
generating the conflict transaction ids.
Followin
Self review of previous patch. Fix assumption that xmax >= xmin.
Branch
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master
Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=9975c683b102d06ed5d5ab799eaba0d00a9ff38c
Modified Files
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src/backend/access/heap/heapam.c |6 ++
1 files cha
Log Message:
---
Change to read and skip the rest of result data when out of memory occurs while
reading tuples so that we can continue to use the connection.
Modified Files:
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psqlodbc:
columninfo.c (r1.33 -> r1.34)
(http://cvs.pgfoundry.org/cgi-bin/cvsw
Eliminate O(N^2) behavior in parallel restore with many blobs.
With hundreds of thousands of TOC entries, the repeated searches in
reduce_dependencies() become the dominant cost. Get rid of that searching
by constructing reverse-dependency lists, which we can do in O(N) time
during the fix_depend
Eliminate O(N^2) behavior in parallel restore with many blobs.
With hundreds of thousands of TOC entries, the repeated searches in
reduce_dependencies() become the dominant cost. Get rid of that searching
by constructing reverse-dependency lists, which we can do in O(N) time
during the fix_depend
Reduce spurious Hot Standby conflicts from never-visible records.
Hot Standby conflicts only with tuples that were visible at
some point. So ignore tuples from aborted transactions or for
tuples updated/deleted during the inserting transaction when
generating the conflict transaction ids.
Followin
