/*-------------------------------------------------------------------------
 *
 * qualify.c
 *	  The deparser relies on fully qualified names on all statements to
 *	  work transparently on a remote worker node. Here we have helpers to
 *	  fully qualify parsetrees.
 *
 *	  Fully qualified parsetrees contain names for all identifiers that
 *	  are search_path agnostic. Meaning we need to include the schema name
 *	  for each and every identifier in the parsetree.
 *
 *	  This file contains mostly the distpatching functions to specialized
 *	  functions for each class of objects. eg qualify_type_stmt.c contains
 *	  all functions related to fully qualifying parsetrees that interact
 *	  with types.
 *
 * Copyright (c) Citus Data, Inc.
 *
 *-------------------------------------------------------------------------
 */

#include "postgres.h"

#include "distributed/commands.h"
#include "distributed/deparser.h"


/*
 * QualifyTreeNode transforms the statement in place and makes all (supported) statements
 * fully qualified. Fully qualified statements allow for application on a remote postgres
 * server irregardless of their search_path.
 */
void
QualifyTreeNode(Node *stmt)
{
	const DistributeObjectOps *ops = GetDistributeObjectOps(stmt);

	if (ops && ops->qualify)
	{
		ops->qualify(stmt);
	}
}


/*
 * QualifyRenameAttributeStmt transforms a RENAME ATTRIBUTE statement in place and makes all (supported)
 * statements fully qualified.
 */
void
QualifyRenameAttributeStmt(Node *node)
{
	RenameStmt *stmt = castNode(RenameStmt, node);
	Assert(stmt->renameType == OBJECT_ATTRIBUTE);

	switch (stmt->relationType)
	{
		case OBJECT_TYPE:
		{
			QualifyRenameTypeAttributeStmt(node);
			return;
		}

		default:
		{
			return;
		}
	}
}