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Merge the last few variable.c configuration variables into the generic

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GUC support.  It's now possible to set datestyle, timezone, and
client_encoding from postgresql.conf and per-database or per-user
settings.  Also, implement rollback of SET commands that occur in a
transaction that later fails.  Create a SET LOCAL var = value syntax
that sets the variable only for the duration of the current transaction.
All per previous discussions in pghackers.
This commit is contained in:
Tom Lane
2002-05-17 01:19:19 +00:00
parent fa613fa1ea
commit f0811a74b3
42 changed files with 2641 additions and 1802 deletions
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32
src/include/commands/variable.h
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@ -1,18 +1,32 @@
/*
* Headers for handling of 'SET var TO', 'SHOW var' and 'RESET var'
* statements
* variable.h
* Routines for handling specialized SET variables.
*
* $Id: variable.h,v 1.17 2001/11/05 17:46:33 momjian Exp $
* $Id: variable.h,v 1.18 2002/05/17 01:19:19 tgl Exp $
*
*/
#ifndef VARIABLE_H
#define VARIABLE_H
extern void SetPGVariable(const char *name, List *args);
extern void GetPGVariable(const char *name);
extern void ResetPGVariable(const char *name);
extern void set_default_datestyle(void);
extern void set_default_client_encoding(void);
extern const char *assign_datestyle(const char *value,
bool doit, bool interactive);
extern const char *show_datestyle(void);
extern const char *assign_timezone(const char *value,
bool doit, bool interactive);
extern const char *show_timezone(void);
extern const char *assign_XactIsoLevel(const char *value,
bool doit, bool interactive);
extern const char *show_XactIsoLevel(void);
extern bool assign_random_seed(double value,
bool doit, bool interactive);
extern const char *show_random_seed(void);
extern const char *assign_client_encoding(const char *value,
bool doit, bool interactive);
extern const char *assign_server_encoding(const char *value,
bool doit, bool interactive);
extern const char *show_server_encoding(void);
extern const char *assign_session_authorization(const char *value,
bool doit, bool interactive);
extern const char *show_session_authorization(void);
#endif /* VARIABLE_H */