/*
* DropErrorTable
*
* Drop the error table from the database. This function will be called from
* destroyCdbSreh when an autogenerated error table was not used in the COPY
* operation granted KEEP wasn't specified.
*
*/
static
void DropErrorTable(CdbSreh *cdbsreh)
{
StringInfoData dropstmt;
RangeVar *errtbl_rv;
Insist(Gp_role == GP_ROLE_DISPATCH);
ereport(NOTICE,
(errcode(ERRCODE_SUCCESSFUL_COMPLETION),
errmsg("Dropping the auto-generated unused error table"),
errhint("Use KEEP in LOG INTO clause to force keeping the error table alive")));
initStringInfo(&dropstmt);
appendStringInfo(&dropstmt, "DROP TABLE %s.%s",
quote_identifier(get_namespace_name(RelationGetNamespace(cdbsreh->errtbl))),
quote_identifier(RelationGetRelationName(cdbsreh->errtbl)));
errtbl_rv = makeRangeVar(get_namespace_name(RelationGetNamespace(cdbsreh->errtbl)),
RelationGetRelationName(cdbsreh->errtbl), -1);
/* DROP the relation on the QD */
RemoveRelation(errtbl_rv,DROP_RESTRICT, NULL, RELKIND_RELATION);
/* dispatch the DROP to the QEs */
CdbDoCommand(dropstmt.data, false, /*no txn */ false);
pfree(dropstmt.data);
}
/* ----------------
* general utility function invoker
* ----------------
*/
void
ProcessUtility(Node *parsetree,
CommandDest dest)
{
char *commandTag = NULL;
char *relname;
char *relationName;
char *userName;
userName = GetPgUserName();
switch (nodeTag(parsetree)) {
/* ********************************
* transactions
* ********************************
*/
case T_TransactionStmt:
{
TransactionStmt *stmt = (TransactionStmt *)parsetree;
switch (stmt->command) {
case BEGIN_TRANS:
commandTag = "BEGIN";
CHECK_IF_ABORTED();
BeginTransactionBlock();
break;
case END_TRANS:
commandTag = "END";
EndTransactionBlock();
break;
case ABORT_TRANS:
commandTag = "ABORT";
UserAbortTransactionBlock();
break;
}
}
break;
/* ********************************
* portal manipulation
* ********************************
*/
case T_ClosePortalStmt:
{
ClosePortalStmt *stmt = (ClosePortalStmt *)parsetree;
commandTag = "CLOSE";
CHECK_IF_ABORTED();
PerformPortalClose(stmt->portalname, dest);
}
break;
case T_FetchStmt:
{
FetchStmt *stmt = (FetchStmt *)parsetree;
char *portalName = stmt->portalname;
bool forward;
int count;
commandTag = "FETCH";
CHECK_IF_ABORTED();
forward = (bool)(stmt->direction == FORWARD);
/* parser ensures that count is >= 0 and
'fetch ALL' -> 0 */
count = stmt->howMany;
PerformPortalFetch(portalName, forward, count, commandTag, dest);
}
break;
/* ********************************
* relation and attribute manipulation
* ********************************
*/
case T_CreateStmt:
commandTag = "CREATE";
CHECK_IF_ABORTED();
DefineRelation((CreateStmt *)parsetree);
break;
case T_DestroyStmt:
{
DestroyStmt *stmt = (DestroyStmt *)parsetree;
List *arg;
List *args = stmt->relNames;
commandTag = "DROP";
CHECK_IF_ABORTED();
foreach (arg, args) {
relname = strVal(lfirst(arg));
if (IsSystemRelationName(relname))
elog(WARN, "class \"%-.*s\" is a system catalog",
NAMEDATALEN, relname);
#ifndef NO_SECURITY
if (!pg_ownercheck(userName, relname, RELNAME))
elog(WARN, "you do not own class \"%-.*s\"",
NAMEDATALEN, relname);
#endif
}
foreach (arg, args) {
relname = strVal(lfirst(arg));
RemoveRelation(relname);
}
}
