pgsql: Named restore points in recovery. Users can record named points,

Named restore points in recovery. Users can record named points, then
new recovery.conf parameter recovery_target_name allows PITR to
specify named points as recovery targets.

Jaime Casanova, reviewed by Euler Taveira de Oliveira, plus minor edits

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=c016ce728139be95bb0dc7c4e5640507334c2339

Modified Files
--------------
doc/src/sgml/backup.sgml | 7 +-
doc/src/sgml/func.sgml | 10 ++
doc/src/sgml/recovery-config.sgml | 25 +++-
src/backend/access/transam/recovery.conf.sample | 7 +-
src/backend/access/transam/xlog.c | 170 +++++++++++++++++++++--
src/include/access/xlog.h | 4 +-
src/include/access/xlog_internal.h | 1 +
src/include/catalog/pg_control.h | 1 +
src/include/catalog/pg_proc.h | 1 +
9 files changed, 209 insertions(+), 17 deletions(-)