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/*-------------------------------------------------------------------------
*
* copy.h
* Definitions for using the POSTGRES copy command.
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/commands/copy.h
*
*-------------------------------------------------------------------------
*/
#ifndef COPY_H
#define COPY_H
#include "nodes/execnodes.h"
#include "nodes/parsenodes.h"
#include "parser/parse_node.h"
#include "tcop/dest.h"
/* CopyStateData is private in commands/copy.c */
typedef struct CopyStateData *CopyState;
typedef int (*copy_data_source_cb) (void *outbuf, int minread, int maxread);
extern void DoCopy(ParseState *state, const CopyStmt *stmt,
int stmt_location, int stmt_len,
uint64 *processed);
extern void ProcessCopyOptions(ParseState *pstate, CopyState cstate, bool is_from, List *options);
extern CopyState BeginCopyFrom(ParseState *pstate, Relation rel, const char *filename,
bool is_program, copy_data_source_cb data_source_cb, List *attnamelist, List *options);
extern void EndCopyFrom(CopyState cstate);
extern bool NextCopyFrom(CopyState cstate, ExprContext *econtext,
Datum *values, bool *nulls);
extern bool NextCopyFromRawFields(CopyState cstate,
char ***fields, int *nfields);
extern void CopyFromErrorCallback(void *arg);
extern uint64 CopyFrom(CopyState cstate);
extern DestReceiver *CreateCopyDestReceiver(void);
#endif /* COPY_H */
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