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Support SET FROM CURRENT in CREATE/ALTER FUNCTION, ALTER DATABASE, ALTER ROLE.

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(Actually, it works as a plain statement too, but I didn't document that
because it seems a bit useless.)  Unify VariableResetStmt with
VariableSetStmt, and clean up some ancient cruft in the representation of
same.
This commit is contained in:
Tom Lane
2007-09-03 18:46:30 +00:00
parent dd4594e332
commit e7889b83b7
17 changed files with 382 additions and 360 deletions
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20
src/backend/nodes/equalfuncs.c
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@@ -18,7 +18,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.312 2007/08/31 01:44:05 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.313 2007/09/03 18:46:30 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1325,8 +1325,7 @@ static bool
_equalAlterDatabaseSetStmt(AlterDatabaseSetStmt *a, AlterDatabaseSetStmt *b)
{
COMPARE_STRING_FIELD(dbname);
COMPARE_STRING_FIELD(variable);
COMPARE_NODE_FIELD(value);
COMPARE_NODE_FIELD(setstmt);
return true;
}
@@ -1385,6 +1384,7 @@ _equalAlterSeqStmt(AlterSeqStmt *a, AlterSeqStmt *b)
static bool
_equalVariableSetStmt(VariableSetStmt *a, VariableSetStmt *b)
{
COMPARE_SCALAR_FIELD(kind);
COMPARE_STRING_FIELD(name);
COMPARE_NODE_FIELD(args);
COMPARE_SCALAR_FIELD(is_local);
@@ -1400,14 +1400,6 @@ _equalVariableShowStmt(VariableShowStmt *a, VariableShowStmt *b)
return true;
}
static bool
_equalVariableResetStmt(VariableResetStmt *a, VariableResetStmt *b)
{
COMPARE_STRING_FIELD(name);
return true;
}
static bool
_equalDiscardStmt(DiscardStmt *a, DiscardStmt *b)
{
@@ -1511,8 +1503,7 @@ static bool
_equalAlterRoleSetStmt(AlterRoleSetStmt *a, AlterRoleSetStmt *b)
{
COMPARE_STRING_FIELD(role);
COMPARE_STRING_FIELD(variable);
COMPARE_NODE_FIELD(value);
COMPARE_NODE_FIELD(setstmt);
return true;
}
@@ -2356,9 +2347,6 @@ equal(void *a, void *b)
case T_VariableShowStmt:
retval = _equalVariableShowStmt(a, b);
break;
case T_VariableResetStmt:
retval = _equalVariableResetStmt(a, b);
break;
case T_DiscardStmt:
retval = _equalDiscardStmt(a, b);
break;