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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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8
src/backend/commands/dbcommands.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.88 2002/04/27 21:24:34 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/dbcommands.c,v 1.89 2002/05/17 01:19:17 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -458,9 +458,7 @@ AlterDatabaseSet(AlterDatabaseSetStmt *stmt)
char repl_null[Natts_pg_database];
char repl_repl[Natts_pg_database];
valuestr = (stmt->value
? ((A_Const *) lfirst(stmt->value))->val.val.str
: NULL);
valuestr = flatten_set_variable_args(stmt->variable, stmt->value);
rel = heap_openr(DatabaseRelationName, RowExclusiveLock);
ScanKeyEntryInitialize(&scankey, 0, Anum_pg_database_datname,
@ -477,7 +475,7 @@ AlterDatabaseSet(AlterDatabaseSetStmt *stmt)
MemSet(repl_repl, ' ', sizeof(repl_repl));
repl_repl[Anum_pg_database_datconfig-1] = 'r';
if (strcmp(stmt->variable, "all")==0 && stmt->value == NULL)
if (strcmp(stmt->variable, "all")==0 && valuestr == NULL)
{
/* RESET ALL */
repl_null[Anum_pg_database_datconfig-1] = 'n';