#include <postgres.h>
#include <commands/explain.h>
#if PG_VERSION_NUM >= 180000
#include <commands/explain_format.h>
#endif
#if PG_VERSION_NUM < 120000
#include <nodes/relation.h>
#include <optimizer/var.h>
#include <utils/tqual.h>
#else
#include <nodes/pathnodes.h>
#include <optimizer/optimizer.h>
#include <access/heapam.h>
#endif
//#include "db2_pg.h"
#include "db2_fdw.h"
#include "ParamDesc.h"
#include "DB2FdwState.h"

/** external prototypes */
extern void            db2Debug1                 (const char* message, ...);
extern void            db2Debug2                 (const char* message, ...);

/** local prototypes */
void db2ExplainForeignModify (ModifyTableState* mtstate, ResultRelInfo* rinfo, List* fdw_private, int subplan_index, struct ExplainState* es);

/** db2ExplainForeignModify
 *   Show the DB2 DML statement.
 *   Nothing special is done for VERBOSE because the query plan is likely trivial.
 */
void db2ExplainForeignModify (ModifyTableState* mtstate, ResultRelInfo* rinfo, List* fdw_private, int subplan_index, struct ExplainState* es) {
  DB2FdwState* fdw_state = (DB2FdwState*) rinfo->ri_FdwState;
  db2Debug1("> db2ExplainForeignModify");
  db2Debug2("  relid: %d", RelationGetRelid (rinfo->ri_RelationDesc));
  /* show query */
  ExplainPropertyText ("DB2 statement", fdw_state->query, es);
  db2Debug1("< db2ExplainForeignModify");
}