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/* Create and manipulate PGresults */
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extern PGresult *PQmakeEmptyPGresult(PGconn *conn, ExecStatusType status);
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extern PGresult *PQcopyResult(const PGresult *src, int flags);
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extern void *PQresultAlloc(PGresult *res, size_t nBytes);
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extern int PQsetvalue(PGresult *res, int tup_num, int field_num, char *value, int len);
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extern int PQsetvalue(PGresult *res, int tup_num, int field_num, char *value, int len);
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/* Quoting strings before inclusion in queries. */
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extern size_t PQescapeStringConn(PGconn *conn,