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Add session_preload_libraries configuration parameter

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This is like shared_preload_libraries except that it takes effect at
backend start and can be changed without a full postmaster restart.  It
is like local_preload_libraries except that it is still only settable by
a superuser.  This can be a better way to load modules such as
auto_explain.

Since there are now three preload parameters, regroup the documentation
a bit.  Put all parameters into one section, explain common
functionality only once, update the descriptions to reflect current and
future realities.

Reviewed-by: Dimitri Fontaine <dimitri@2ndQuadrant.fr>
This commit is contained in:
Peter Eisentraut
2013-06-12 22:28:24 -04:00
parent f3ab5d4696
commit 070518ddab
7 changed files with 193 additions and 124 deletions
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3
src/include/miscadmin.h
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@@ -403,6 +403,7 @@ extern void BaseInit(void);
/* in utils/init/miscinit.c */
extern bool IgnoreSystemIndexes;
extern PGDLLIMPORT bool process_shared_preload_libraries_in_progress;
extern char *session_preload_libraries_string;
extern char *shared_preload_libraries_string;
extern char *local_preload_libraries_string;
@@ -438,7 +439,7 @@ extern void TouchSocketLockFiles(void);
extern void AddToDataDirLockFile(int target_line, const char *str);
extern void ValidatePgVersion(const char *path);
extern void process_shared_preload_libraries(void);
extern void process_local_preload_libraries(void);
extern void process_session_preload_libraries(void);
extern void pg_bindtextdomain(const char *domain);
extern bool has_rolreplication(Oid roleid);