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Add copyObject logic for TruncateStmt and a few other utility-statement 

parse node types.  This allows these statements to be placed in a plpgsql
function.  Also, see to it that statement types not handled by the copy
logic will draw an appropriate elog(ERROR), instead of leaving a null
pointer that will cause coredump later on.  More utility statements could
be added if anyone felt like turning the crank.
This commit is contained in:
Tom Lane 2000-04-08 00:21:15 +00:00
parent 124875e879
commit dc070fdea6
1 changed files with 148 additions and 17 deletions
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165
src/backend/nodes/copyfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.111 2000/04/04 01:21:48 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.112 2000/04/08 00:21:15 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1369,8 +1369,9 @@ _copyStream(Stream *from)
return newnode;
}
/*
* parsenodes.h routines have no copy functions
/* ****************************************************************
* parsenodes.h copy functions
* ****************************************************************
*/
static TargetEntry *
@ -1467,14 +1468,7 @@ _copyQuery(Query *from)
Query *newnode = makeNode(Query);
newnode->commandType = from->commandType;
if (from->utilityStmt && nodeTag(from->utilityStmt) == T_NotifyStmt)
{
NotifyStmt *from_notify = (NotifyStmt *) from->utilityStmt;
NotifyStmt *n = makeNode(NotifyStmt);
n->relname = pstrdup(from_notify->relname);
newnode->utilityStmt = (Node *) n;
}
Node_Copy(from, newnode, utilityStmt);
newnode->resultRelation = from->resultRelation;
if (from->into)
newnode->into = pstrdup(from->into);
@ -1510,10 +1504,117 @@ _copyQuery(Query *from)
return newnode;
}
static ClosePortalStmt *
_copyClosePortalStmt(ClosePortalStmt *from)
{
ClosePortalStmt *newnode = makeNode(ClosePortalStmt);
if (from->portalname)
newnode->portalname = pstrdup(from->portalname);
return newnode;
}
static TruncateStmt *
_copyTruncateStmt(TruncateStmt *from)
{
TruncateStmt *newnode = makeNode(TruncateStmt);
newnode->relName = pstrdup(from->relName);
return newnode;
}
static NotifyStmt *
_copyNotifyStmt(NotifyStmt *from)
{
NotifyStmt *newnode = makeNode(NotifyStmt);
if (from->relname)
newnode->relname = pstrdup(from->relname);
return newnode;
}
static ListenStmt *
_copyListenStmt(ListenStmt *from)
{
ListenStmt *newnode = makeNode(ListenStmt);
if (from->relname)
newnode->relname = pstrdup(from->relname);
return newnode;
}
static UnlistenStmt *
_copyUnlistenStmt(UnlistenStmt *from)
{
UnlistenStmt *newnode = makeNode(UnlistenStmt);
if (from->relname)
newnode->relname = pstrdup(from->relname);
return newnode;
}
static TransactionStmt *
_copyTransactionStmt(TransactionStmt *from)
{
TransactionStmt *newnode = makeNode(TransactionStmt);
newnode->command = from->command;
return newnode;
}
static LoadStmt *
_copyLoadStmt(LoadStmt *from)
{
LoadStmt *newnode = makeNode(LoadStmt);
if (from->filename)
newnode->filename = pstrdup(from->filename);
return newnode;
}
static VariableSetStmt *
_copyVariableSetStmt(VariableSetStmt *from)
{
VariableSetStmt *newnode = makeNode(VariableSetStmt);
if (from->name)
newnode->name = pstrdup(from->name);
if (from->value)
newnode->value = pstrdup(from->value);
return newnode;
}
static VariableResetStmt *
_copyVariableResetStmt(VariableResetStmt *from)
{
VariableResetStmt *newnode = makeNode(VariableResetStmt);
if (from->name)
newnode->name = pstrdup(from->name);
return newnode;
}
static LockStmt *
_copyLockStmt(LockStmt *from)
{
LockStmt *newnode = makeNode(LockStmt);
if (from->relname)
newnode->relname = pstrdup(from->relname);
newnode->mode = from->mode;
return newnode;
}
/*
* mnodes.h routines have no copy functions
*/
/* ****************************************************************
* pg_list.h copy functions
@ -1718,9 +1819,6 @@ copyObject(void *from)
/*
* PARSE NODES
*/
case T_Query:
retval = _copyQuery(from);
break;
case T_TargetEntry:
retval = _copyTargetEntry(from);
break;
@ -1742,6 +1840,39 @@ copyObject(void *from)
case T_TypeCast:
retval = _copyTypeCast(from);
break;
case T_Query:
retval = _copyQuery(from);
break;
case T_ClosePortalStmt:
retval = _copyClosePortalStmt(from);
break;
case T_TruncateStmt:
retval = _copyTruncateStmt(from);
break;
case T_NotifyStmt:
retval = _copyNotifyStmt(from);
break;
case T_ListenStmt:
retval = _copyListenStmt(from);
break;
case T_UnlistenStmt:
retval = _copyUnlistenStmt(from);
break;
case T_TransactionStmt:
retval = _copyTransactionStmt(from);
break;
case T_LoadStmt:
retval = _copyLoadStmt(from);
break;
case T_VariableSetStmt:
retval = _copyVariableSetStmt(from);
break;
case T_VariableResetStmt:
retval = _copyVariableResetStmt(from);
break;
case T_LockStmt:
retval = _copyLockStmt(from);
break;
/*
* VALUE NODES