Beispiel #1
0
/* Clause 3.3.1.3 */
Datum MarketFeedFrame1(PG_FUNCTION_ARGS)
{
	FuncCallContext *funcctx;
	AttInMetadata *attinmeta;
	int call_cntr;
	int max_calls;

	int i, j, n;
	int num_updated = 0;
	int rows_sent;
	int send_len = 0;
	int count = 0;

	int nitems_pq;
	int *p_tq;
	char *p_s;

	char **values = NULL;

	/* Stuff done only on the first call of the function. */
	if (SRF_IS_FIRSTCALL()) {
		MemoryContext oldcontext;

		ArrayType *price_quote_p = PG_GETARG_ARRAYTYPE_P(0);
		char *status_submitted_p = (char *) PG_GETARG_TEXT_P(1);
		ArrayType *symbol_p = PG_GETARG_ARRAYTYPE_P(2);
		ArrayType *trade_qty = PG_GETARG_ARRAYTYPE_P(3);
		char *type_limit_buy_p = (char *) PG_GETARG_TEXT_P(4);
		char *type_limit_sell_p = (char *) PG_GETARG_TEXT_P(5);
		char *type_stop_loss_p = (char *) PG_GETARG_TEXT_P(6);

		enum mff1 {
				i_num_updated=0, i_send_len, i_symbol, i_trade_id,
				i_price_quote, i_trade_qty, i_trade_type
		};

		Datum *transdatums_pq;

		int16 typlen_s;
		bool typbyval_s;
		char typalign_s;

		int16 typlen_tq;
		bool typbyval_tq;
		char typalign_tq;

		int ret;
		TupleDesc tupdesc;
		SPITupleTable *tuptable = NULL;
		HeapTuple tuple = NULL;
#ifdef DEBUG
		char sql[2048];
#endif
		Datum args[7];
		char nulls[] = { ' ', ' ', ' ', ' ', ' ',
						' ', ' ' };
		char price_quote[S_PRICE_T_LEN + 1];
		char status_submitted[ST_ID_LEN + 1];
		char symbol[S_SYMB_LEN + 1];
		char type_limit_buy[TT_ID_LEN + 1];
		char type_limit_sell[TT_ID_LEN + 1];
		char type_stop_loss[TT_ID_LEN + 1];
		char *trade_id;
		char *req_price_quote;
		char *req_trade_type;
		char *req_trade_qty;

		/*
		 * Prepare a values array for building the returned tuple.
		 * This should be an array of C strings, which will
		 * be processed later by the type input functions.
		 */
		values = (char **) palloc(sizeof(char *) * 7);
		values[i_num_updated] =
				(char *) palloc((INTEGER_LEN + 1) * sizeof(char));
		values[i_send_len] = (char *) palloc((INTEGER_LEN + 1) * sizeof(char));
		/*
		 * FIXME: We don't know how many rows could be returned.  The average
		 * is supposed to be 4.  Let's be prepared for 100, just to be safe.
		 */
		values[i_symbol] = (char *) palloc(((S_SYMB_LEN + 3) * 100 + 3) *
				sizeof(char));
		values[i_trade_id] = (char *) palloc(((IDENT_T_LEN + 1) * 100 + 2) *
				sizeof(char));
		values[i_price_quote] = (char *) palloc(((S_PRICE_T_LEN + 1) * 100 +
				2) * sizeof(char));
		values[i_trade_qty] = (char *) palloc(((INTEGER_LEN + 1) * 100 + 2) *
				sizeof(char));
		values[i_trade_type] = (char *) palloc(((TT_ID_LEN + 3) * 100 + 3) *
				sizeof(char));

		/*
		 * This might be overkill since we always expect single dimensions
		 * arrays.
		 * Should probably check the count of all the arrays to make sure
		 * they are the same...
		 */
		get_typlenbyvalalign(ARR_ELEMTYPE(symbol_p), &typlen_s, &typbyval_s,
				&typalign_s);
		p_s = ARR_DATA_PTR(symbol_p);

		get_typlenbyvalalign(ARR_ELEMTYPE(trade_qty), &typlen_tq, &typbyval_tq,
				&typalign_tq);
		p_tq = (int *) ARR_DATA_PTR(trade_qty);

		deconstruct_array(price_quote_p, NUMERICOID, -1, false, 'i',
				&transdatums_pq, NULL, &nitems_pq);

		strcpy(status_submitted, DatumGetCString(DirectFunctionCall1(textout,
				PointerGetDatum(status_submitted_p))));
		strcpy(type_limit_buy, DatumGetCString(DirectFunctionCall1(textout,
				PointerGetDatum(type_limit_buy_p))));
        strcpy(type_limit_sell, DatumGetCString(DirectFunctionCall1(textout,
                PointerGetDatum(type_limit_sell_p))));
		strcpy(type_stop_loss, DatumGetCString(DirectFunctionCall1(textout,
                PointerGetDatum(type_stop_loss_p))));

#ifdef DEBUG
		dump_mff1_inputs(price_quote_p, status_submitted_p, symbol_p,
				trade_qty, type_limit_buy_p, type_limit_sell_p,
				type_stop_loss_p);
#endif

		/* create a function context for cross-call persistence */
		funcctx = SRF_FIRSTCALL_INIT();

		/* switch to memory context appropriate for multiple function calls */
		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);

		SPI_connect();
		plan_queries(MFF1_statements);

		strcpy(values[i_symbol], "{");
		strcpy(values[i_trade_id], "{");
		strcpy(values[i_price_quote], "{");
		strcpy(values[i_trade_type], "{");
		strcpy(values[i_trade_qty], "{");
		for (i = 0; i < nitems_pq; i++) {
			rows_sent = 0;

			strcpy(price_quote,
					DatumGetCString(DirectFunctionCall1(numeric_out,
							transdatums_pq[i])));
			strcpy(symbol, DatumGetCString(DirectFunctionCall1(textout,
					PointerGetDatum(p_s))));
			/* FIXME: BEGIN/COMMIT statements not supported with SPI. */
/*
			ret = SPI_exec("BEGIN;", 0);
			if (ret == SPI_OK_SELECT) {
			} else {
				elog(NOTICE, "ERROR: BEGIN not ok = %d", ret);
			}
*/
#ifdef DEBUG
			sprintf(sql, SQLMFF1_1,
					DatumGetCString(DirectFunctionCall1(numeric_out,            
							transdatums_pq[i])),
					p_tq[i],
					symbol);
			elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
			args[0] = Float8GetDatum(atof(price_quote));
			args[1] = Int64GetDatum(p_tq[i]);
			args[2] = CStringGetTextDatum(symbol);
			ret = SPI_execute_plan(MFF1_1, args, nulls, false, 0);
			if (ret != SPI_OK_UPDATE) {
				dump_mff1_inputs(price_quote_p, status_submitted_p, symbol_p,
						trade_qty, type_limit_buy_p, type_limit_sell_p,
						type_stop_loss_p);
				FAIL_FRAME_SET(&funcctx->max_calls, MFF1_statements[0].sql);
			}
			num_updated += SPI_processed;
#ifdef DEBUG
			elog(NOTICE, "%d row(s) updated", num_updated);
			sprintf(sql, SQLMFF1_2, symbol, type_stop_loss, price_quote,
					type_limit_sell, price_quote, type_limit_buy, price_quote);
			elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
			args[0] = CStringGetTextDatum(symbol);
			args[1] = CStringGetTextDatum(type_stop_loss);
			args[2] = Float8GetDatum(atof(price_quote));
			args[3] = CStringGetTextDatum(type_limit_sell);
			args[4] = args[2];
			args[5] = CStringGetTextDatum(type_limit_buy);
			args[6] = args[2];
			ret = SPI_execute_plan(MFF1_2, args, nulls, true, 0);
			if (ret != SPI_OK_SELECT) {
				dump_mff1_inputs(price_quote_p, status_submitted_p, symbol_p,
						trade_qty, type_limit_buy_p, type_limit_sell_p,
						type_stop_loss_p);
				FAIL_FRAME_SET(&funcctx->max_calls, MFF1_statements[1].sql);
				continue;
			}
#ifdef DEBUG
			elog(NOTICE, "%d row(s) returned", SPI_processed);
#endif /* DEBUG */

			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
			n = SPI_processed;
			for (j = 0; j < n; j++) {
				tuple = tuptable->vals[j];
				trade_id = SPI_getvalue(tuple, tupdesc, 1);
				req_price_quote = SPI_getvalue(tuple, tupdesc, 2);
				req_trade_type = SPI_getvalue(tuple, tupdesc, 3);
				req_trade_qty = SPI_getvalue(tuple, tupdesc, 4);
#ifdef DEBUG
				elog(NOTICE, "trade_id = %s", trade_id);
				sprintf(sql, SQLMFF1_3, status_submitted, trade_id);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[0] = CStringGetTextDatum(status_submitted);
				args[1] = Int64GetDatum(atoll(trade_id));
				ret = SPI_execute_plan(MFF1_3, args, nulls, false, 0);
				if (ret != SPI_OK_UPDATE) {
					dump_mff1_inputs(price_quote_p, status_submitted_p,
							symbol_p, trade_qty, type_limit_buy_p,
							type_limit_sell_p, type_stop_loss_p);
					FAIL_FRAME_SET(&funcctx->max_calls, MFF1_statements[2].sql);
				}
#ifdef DEBUG
				sprintf(sql, SQLMFF1_4, trade_id);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[0] = Int64GetDatum(atoll(trade_id));
				ret = SPI_execute_plan(MFF1_4, args, nulls, false, 0);
				if (ret != SPI_OK_DELETE) {
					dump_mff1_inputs(price_quote_p, status_submitted_p,
							symbol_p, trade_qty, type_limit_buy_p,
							type_limit_sell_p, type_stop_loss_p);
					FAIL_FRAME_SET(&funcctx->max_calls, MFF1_statements[3].sql);
				}
#ifdef DEBUG
				sprintf(sql, SQLMFF1_5, trade_id, status_submitted);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[1] = CStringGetTextDatum(status_submitted);
				ret = SPI_execute_plan(MFF1_5, args, nulls, false, 0);
				if (ret != SPI_OK_INSERT) {
					dump_mff1_inputs(price_quote_p, status_submitted_p,
							symbol_p, trade_qty, type_limit_buy_p,
							type_limit_sell_p, type_stop_loss_p);
					FAIL_FRAME_SET(&funcctx->max_calls, MFF1_statements[4].sql);
				}
				++rows_sent;
#ifdef DEBUG
				elog(NOTICE, "%d row(s) sent", rows_sent);
#endif /* DEBUG */

				if (count > 0) {
					strcat(values[i_symbol], ",");
					strcat(values[i_trade_id], ",");
					strcat(values[i_price_quote], ",");
					strcat(values[i_trade_type], ",");
					strcat(values[i_trade_qty], ",");
				}
				strcat(values[i_symbol], symbol);
				strcat(values[i_trade_id], trade_id);
				strcat(values[i_price_quote], req_price_quote);
				strcat(values[i_trade_type], req_trade_type);
				strcat(values[i_trade_qty], req_trade_qty);
				++count;
			}

			/* FIXME: BEGIN/COMMIT statements not supported with SPI. */
/*
			ret = SPI_exec("COMMIT;", 0);
			if (ret == SPI_OK_SELECT) {
			} else {
				elog(NOTICE, "ERROR: COMMIT not ok = %d", ret);
			}
*/

			send_len += rows_sent;

			p_s = att_addlength_pointer(p_s, typlen_s, p_s);
			p_s = (char *) att_align_nominal(p_s, typalign_s);
		}
		strcat(values[i_symbol], "}");
		strcat(values[i_trade_id], "}");
		strcat(values[i_price_quote], "}");
		strcat(values[i_trade_qty], "}");
		strcat(values[i_trade_type], "}");

		sprintf(values[i_num_updated], "%d", num_updated);
		sprintf(values[i_send_len], "%d", send_len);
		funcctx->max_calls = 1;

		/* Build a tuple descriptor for our result type */
		if (get_call_result_type(fcinfo, NULL, &tupdesc) !=
				TYPEFUNC_COMPOSITE) {
			ereport(ERROR,
					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
					errmsg("function returning record called in context "
							"that cannot accept type record")));
		}

		/*
		 * generate attribute metadata needed later to produce tuples from raw
		 * C strings
		 */
		attinmeta = TupleDescGetAttInMetadata(tupdesc);
		funcctx->attinmeta = attinmeta;

		MemoryContextSwitchTo(oldcontext);
	}

	/* stuff done on every call of the function */
	funcctx = SRF_PERCALL_SETUP();

	call_cntr = funcctx->call_cntr;
	max_calls = funcctx->max_calls;
	attinmeta = funcctx->attinmeta;

	if (call_cntr < max_calls) {
		/* do when there is more left to send */
		HeapTuple tuple;
		Datum result;

#ifdef DEBUG                                                                    
		for (i = 0; i < 7; i++) {
			elog(NOTICE, "MFF1 OUT: %d %s", i, values[i]);
		}
#endif /* DEBUG */

		/* Build a tuple. */
		tuple = BuildTupleFromCStrings(attinmeta, values);

		/* Make the tuple into a datum. */
		result = HeapTupleGetDatum(tuple);

		SRF_RETURN_NEXT(funcctx, result);
	} else {
		/* Do when there is no more left. */
		SPI_finish();
		SRF_RETURN_DONE(funcctx);
	}
}
Beispiel #2
0
/* Clause 3.3.9.3 */
Datum TradeStatusFrame1(PG_FUNCTION_ARGS)
{
	FuncCallContext *funcctx;
	AttInMetadata *attinmeta;
	int call_cntr;
	int max_calls;

	int i;

	char **values = NULL;

	/* Stuff done only on the first call of the function. */
	if (SRF_IS_FIRSTCALL()) {
		enum tsf1 {
				i_broker_name=0, i_charge, i_cust_f_name, i_cust_l_name,
				i_ex_name, i_exec_name, i_num_found, i_s_name, i_status_name,
				i_symbol, i_trade_dts, i_trade_id, i_trade_qty, i_type_name
		};

		long acct_id = PG_GETARG_INT64(0);

		int ret;
		TupleDesc tupdesc;
		SPITupleTable *tuptable = NULL;
		HeapTuple tuple = NULL;
#ifdef DEBUG
		char sql[2048];
#endif
		Datum args[1];
		char nulls[1] = { ' ' };
		/*
		 * Prepare a values array for building the returned tuple.
		 * This should be an array of C strings, which will
		 * be processed later by the type input functions.
		 */
		values = (char **) palloc(sizeof(char *) * 14);
		values[i_charge] =
				(char *) palloc((VALUE_T_LEN + 1) * sizeof(char) * 50);
		values[i_ex_name] =
				(char *) palloc((EX_NAME_LEN + 3) * sizeof(char) * 50);
		values[i_exec_name] =
				(char *) palloc((T_EXEC_NAME_LEN + 3) * sizeof(char) * 50);
		values[i_num_found] = (char *) palloc((BIGINT_LEN + 1) * sizeof(char));
		values[i_s_name] =
				(char *) palloc((S_NAME_LEN + 3) * sizeof(char) * 50);
		values[i_status_name] =
				(char *) palloc((ST_NAME_LEN + 3) * sizeof(char) * 50);
		values[i_symbol] =
				(char *) palloc((S_SYMB_LEN + 3) * sizeof(char) * 50);
		values[i_trade_dts] =
				(char *) palloc((MAXDATELEN + 1) * sizeof(char) * 50);
		values[i_trade_id] =
				(char *) palloc((BIGINT_LEN + 1) * sizeof(char) * 50);
		values[i_trade_qty] =
				(char *) palloc((INTEGER_LEN + 1) * sizeof(char) * 50);
		values[i_type_name] =
				(char *) palloc((TT_NAME_LEN + 3) * sizeof(char) * 50);

		values[i_cust_l_name] = NULL;
		values[i_cust_f_name] = NULL;
		values[i_broker_name] = NULL;

#ifdef DEBUG
		dump_tsf1_inputs(acct_id);
#endif

		/* create a function context for cross-call persistence */
		funcctx = SRF_FIRSTCALL_INIT();
		funcctx->max_calls = 1;

		/* switch to memory context appropriate for multiple function calls */
		TSF1_savedcxt = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);

		SPI_connect();
		plan_queries(TSF1_statements);
#ifdef DEBUG
		sprintf(sql, SQLTSF1_1, acct_id);
		elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
		args[0] = Int64GetDatum(acct_id);
		ret = SPI_execute_plan(TSF1_1, args, nulls, true, 0);
		if (ret == SPI_OK_SELECT) {
			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
		} else {
			FAIL_FRAME_SET(&funcctx->max_calls, TSF1_statements[0].sql);
			dump_tsf1_inputs(acct_id);
		}
		sprintf(values[i_num_found], "%d", SPI_processed);
		strcpy(values[i_trade_id], "{");
		strcpy(values[i_trade_dts], "{");
		strcpy(values[i_status_name], "{");
		strcpy(values[i_type_name], "{");
		strcpy(values[i_symbol], "{");
		strcpy(values[i_trade_qty], "{");
		strcpy(values[i_exec_name], "{");
		strcpy(values[i_charge], "{");
		strcpy(values[i_s_name], "{");
		strcpy(values[i_ex_name], "{");
		for (i = 0; i < SPI_processed; i++) {
			tuple = tuptable->vals[i];
			if (i > 0) {
				strcat(values[i_trade_id], ",");
				strcat(values[i_trade_dts], ",");
				strcat(values[i_status_name], ",");
				strcat(values[i_type_name], ",");
				strcat(values[i_symbol], ",");
				strcat(values[i_trade_qty], ",");
				strcat(values[i_exec_name], ",");
				strcat(values[i_charge], ",");
				strcat(values[i_s_name], ",");
				strcat(values[i_ex_name], ",");
			}
			strcat(values[i_trade_id], SPI_getvalue(tuple, tupdesc, 1));
			strcat(values[i_trade_dts], SPI_getvalue(tuple, tupdesc, 2));
			strcat(values[i_status_name], "\"");
			strcat(values[i_status_name], SPI_getvalue(tuple, tupdesc, 3));
			strcat(values[i_status_name], "\"");
			strcat(values[i_type_name], "\"");
			strcat(values[i_type_name], SPI_getvalue(tuple, tupdesc, 4));
			strcat(values[i_type_name], "\"");
			strcat(values[i_symbol], "\"");
			strcat(values[i_symbol], SPI_getvalue(tuple, tupdesc, 5));
			strcat(values[i_symbol], "\"");
			strcat(values[i_trade_qty], SPI_getvalue(tuple, tupdesc, 6));
			strcat(values[i_exec_name], "\"");
			strcat(values[i_exec_name], SPI_getvalue(tuple, tupdesc, 7));
			strcat(values[i_exec_name], "\"");
			strcat(values[i_charge], SPI_getvalue(tuple, tupdesc, 8));
			strcat(values[i_s_name], "\"");
			strcat(values[i_s_name], SPI_getvalue(tuple, tupdesc, 9));
			strcat(values[i_s_name], "\"");
			strcat(values[i_ex_name], "\"");
			strcat(values[i_ex_name], SPI_getvalue(tuple, tupdesc, 10));
			strcat(values[i_ex_name], "\"");
		}
		strcat(values[i_trade_id], "}");
		strcat(values[i_trade_dts], "}");
		strcat(values[i_status_name], "}");
		strcat(values[i_type_name], "}");
		strcat(values[i_symbol], "}");
		strcat(values[i_trade_qty], "}");
		strcat(values[i_exec_name], "}");
		strcat(values[i_charge], "}");
		strcat(values[i_s_name], "}");
		strcat(values[i_ex_name], "}");

#ifdef DEBUG
		sprintf(sql, SQLTSF1_2, acct_id);
		elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
		ret = SPI_execute_plan(TSF1_2, args, nulls, true, 0);
		if (ret == SPI_OK_SELECT) {
			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
			if (SPI_processed > 0) {
				tuple = tuptable->vals[0];
				values[i_cust_l_name] = SPI_getvalue(tuple, tupdesc, 1);
				values[i_cust_f_name] = SPI_getvalue(tuple, tupdesc, 2);
				values[i_broker_name] = SPI_getvalue(tuple, tupdesc, 3);
			}
		} else {
			FAIL_FRAME_SET(&funcctx->max_calls, TSF1_statements[1].sql);
			dump_tsf1_inputs(acct_id);
		}
		/* Build a tuple descriptor for our result type */
		if (get_call_result_type(fcinfo, NULL, &tupdesc) !=
				TYPEFUNC_COMPOSITE) {
			ereport(ERROR,
					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
					errmsg("function returning record called in context "
							"that cannot accept type record")));
		}

		/*
		 * generate attribute metadata needed later to produce tuples from raw
		 * C strings
		 */
		attinmeta = TupleDescGetAttInMetadata(tupdesc);
		funcctx->attinmeta = attinmeta;

		MemoryContextSwitchTo(TSF1_savedcxt);
	}

	/* stuff done on every call of the function */
	funcctx = SRF_PERCALL_SETUP();

	call_cntr = funcctx->call_cntr;
	max_calls = funcctx->max_calls;
	attinmeta = funcctx->attinmeta;

	if (call_cntr < max_calls) {
		/* do when there is more left to send */
		HeapTuple tuple;
		Datum result;

#ifdef DEBUG
		for (i = 0; i < 14; i++) {
			elog(NOTICE, "TSF1 OUT: %d %s", i, values[i]);
		}
#endif /* DEBUG */

		/* Build a tuple. */
		tuple = BuildTupleFromCStrings(attinmeta, values);

		/* Make the tuple into a datum. */
		result = HeapTupleGetDatum(tuple);

		SRF_RETURN_NEXT(funcctx, result);
	} else {
		/* Do when there is no more left. */
		SPI_finish();
		if (TSF1_savedcxt) MemoryContextSwitchTo(TSF1_savedcxt);
		SRF_RETURN_DONE(funcctx);
	}
}
Beispiel #3
0
Datum payment(PG_FUNCTION_ARGS)
{
	/* Input variables. */
	int32 w_id = PG_GETARG_INT32(0);
	int32 d_id = PG_GETARG_INT32(1);
	int32 c_id = PG_GETARG_INT32(2);
	int32 c_w_id = PG_GETARG_INT32(3);
	int32 c_d_id = PG_GETARG_INT32(4);
	text *c_last = PG_GETARG_TEXT_P(5);
	float4 h_amount = PG_GETARG_FLOAT4(6);

	TupleDesc tupdesc;
	SPITupleTable *tuptable;
	HeapTuple tuple;

	int ret;
	char *w_name = NULL;
	char *w_street_1 = NULL;
	char *w_street_2 = NULL;
	char *w_city = NULL;
	char *w_state = NULL;
	char *w_zip = NULL;

	char *d_name = NULL;
	char *d_street_1 = NULL;
	char *d_street_2 = NULL;
	char *d_city = NULL;
	char *d_state = NULL;
	char *d_zip = NULL;

	char *tmp_c_id = NULL;
	int my_c_id = 0;
	int count;

	char *c_first = NULL;
	char *c_middle = NULL;
	char *my_c_last = NULL;
	char *c_street_1 = NULL;
	char *c_street_2 = NULL;
	char *c_city = NULL;
	char *c_state = NULL;
	char *c_zip = NULL;
	char *c_phone = NULL;
	char *c_since = NULL;
	char *c_credit = NULL;
	char *c_credit_lim = NULL;
	char *c_discount = NULL;
	char *c_balance = NULL;
	char *c_data = NULL;
	char *c_ytd_payment = NULL;

	Datum	args[8];
	char	nulls[8] = { ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' };

	elog(DEBUG1, "w_id = %d", w_id);
	elog(DEBUG1, "d_id = %d", d_id);
	elog(DEBUG1, "c_id = %d", c_id);
	elog(DEBUG1, "c_w_id = %d", c_w_id);
	elog(DEBUG1, "c_d_id = %d", c_d_id);
	elog(DEBUG1, "c_last = %s",
			DatumGetCString(DirectFunctionCall1(textout,
			PointerGetDatum(c_last))));
	elog(DEBUG1, "h_amount = %f", h_amount);

	SPI_connect();

	plan_queries(statements);

	args[0] = Int32GetDatum(w_id);
	ret = SPI_execute_plan(PAYMENT_1, args, nulls, true, 0);
	if (ret == SPI_OK_SELECT && SPI_processed > 0) {
		tupdesc = SPI_tuptable->tupdesc;
		tuptable = SPI_tuptable;
		tuple = tuptable->vals[0];

		w_name = SPI_getvalue(tuple, tupdesc, 1);
		w_street_1 = SPI_getvalue(tuple, tupdesc, 2);
		w_street_2 = SPI_getvalue(tuple, tupdesc, 3);
		w_city = SPI_getvalue(tuple, tupdesc, 4);
		w_state = SPI_getvalue(tuple, tupdesc, 5);
		w_zip = SPI_getvalue(tuple, tupdesc, 6);
		elog(DEBUG1, "w_name = %s", w_name);
		elog(DEBUG1, "w_street_1 = %s", w_street_1);
		elog(DEBUG1, "w_street_2 = %s", w_street_2);
		elog(DEBUG1, "w_city = %s", w_city);
		elog(DEBUG1, "w_state = %s", w_state);
		elog(DEBUG1, "w_zip = %s", w_zip);
	} else {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	args[0] = Float4GetDatum(h_amount);
	args[1] = Int32GetDatum(w_id);
	ret = SPI_execute_plan(PAYMENT_2, args, nulls, false, 0);
	if (ret != SPI_OK_UPDATE) {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	args[0] = Int32GetDatum(d_id);
	args[1] = Int32GetDatum(w_id);
	ret = SPI_execute_plan(PAYMENT_3, args, nulls, true, 0);
	if (ret == SPI_OK_SELECT && SPI_processed > 0) {
		tupdesc = SPI_tuptable->tupdesc;
		tuptable = SPI_tuptable;
		tuple = tuptable->vals[0];

		d_name = SPI_getvalue(tuple, tupdesc, 1);
		d_street_1 = SPI_getvalue(tuple, tupdesc, 2);
		d_street_2 = SPI_getvalue(tuple, tupdesc, 3);
		d_city = SPI_getvalue(tuple, tupdesc, 4);
		d_state = SPI_getvalue(tuple, tupdesc, 5);
		d_zip = SPI_getvalue(tuple, tupdesc, 6);
		elog(DEBUG1, "d_name = %s", d_name);
		elog(DEBUG1, "d_street_1 = %s", d_street_1);
		elog(DEBUG1, "d_street_2 = %s", d_street_2);
		elog(DEBUG1, "d_city = %s", d_city);
		elog(DEBUG1, "d_state = %s", d_state);
		elog(DEBUG1, "d_zip = %s", d_zip);
	} else {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	args[0] = Float4GetDatum(h_amount);
	args[1] = Int32GetDatum(d_id);
	args[2] = Int32GetDatum(w_id);
	ret = SPI_execute_plan(PAYMENT_4, args, nulls, false, 0);
	if (ret != SPI_OK_UPDATE) {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	if (c_id == 0) {
		args[0] = Int32GetDatum(w_id);
		args[1] = Int32GetDatum(d_id);
		args[2] = PointerGetDatum(c_last);
		ret = SPI_execute_plan(PAYMENT_5, args, nulls, true, 0);
		count = SPI_processed;
		if (ret == SPI_OK_SELECT && SPI_processed > 0) {
			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
			tuple = tuptable->vals[count / 2];

			tmp_c_id = SPI_getvalue(tuple, tupdesc, 1);
			elog(DEBUG1, "c_id = %s, %d total, selected %d",
					tmp_c_id, count, count / 2);
			my_c_id = atoi(tmp_c_id);
		} else {
			SPI_finish();
			PG_RETURN_INT32(-1);
		}
	} else {
		my_c_id = c_id;
	}

	args[0] = Int32GetDatum(c_w_id);
	args[1] = Int32GetDatum(c_d_id);
	args[2] = Int32GetDatum(my_c_id);
	ret = SPI_execute_plan(PAYMENT_6, args, nulls, true, 0);
	if (ret == SPI_OK_SELECT && SPI_processed > 0) {
		tupdesc = SPI_tuptable->tupdesc;
		tuptable = SPI_tuptable;
		tuple = tuptable->vals[0];

		c_first = SPI_getvalue(tuple, tupdesc, 1);
		c_middle = SPI_getvalue(tuple, tupdesc, 2);
		my_c_last = SPI_getvalue(tuple, tupdesc, 3);
		c_street_1 = SPI_getvalue(tuple, tupdesc, 4);
		c_street_2 = SPI_getvalue(tuple, tupdesc, 5);
		c_city = SPI_getvalue(tuple, tupdesc, 6);
		c_state = SPI_getvalue(tuple, tupdesc, 7);
		c_zip = SPI_getvalue(tuple, tupdesc, 8);
		c_phone = SPI_getvalue(tuple, tupdesc, 9);
		c_since = SPI_getvalue(tuple, tupdesc, 10);
		c_credit = SPI_getvalue(tuple, tupdesc, 11);
		c_credit_lim = SPI_getvalue(tuple, tupdesc, 12);
		c_discount = SPI_getvalue(tuple, tupdesc, 13);
		c_balance = SPI_getvalue(tuple, tupdesc, 14);
		c_data = SPI_getvalue(tuple, tupdesc, 15);
		c_ytd_payment = SPI_getvalue(tuple, tupdesc, 16);
		elog(DEBUG1, "c_first = %s", c_first);
		elog(DEBUG1, "c_middle = %s", c_middle);
		elog(DEBUG1, "c_last = %s", my_c_last);
		elog(DEBUG1, "c_street_1 = %s", c_street_1);
		elog(DEBUG1, "c_street_2 = %s", c_street_2);
		elog(DEBUG1, "c_city = %s", c_city);
		elog(DEBUG1, "c_state = %s", c_state);
		elog(DEBUG1, "c_zip = %s", c_zip);
		elog(DEBUG1, "c_phone = %s", c_phone);
		elog(DEBUG1, "c_since = %s", c_since);
		elog(DEBUG1, "c_credit = %s", c_credit);
		elog(DEBUG1, "c_credit_lim = %s", c_credit_lim);
		elog(DEBUG1, "c_discount = %s", c_discount);
		elog(DEBUG1, "c_balance = %s", c_balance);
		elog(DEBUG1, "c_data = %s", c_data);
		elog(DEBUG1, "c_ytd_payment = %s", c_ytd_payment);
	} else {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	/* It's either "BC" or "GC". */
	if (c_credit[0] == 'G') {
		args[0] = Float4GetDatum(h_amount);
		args[1] = Int32GetDatum(my_c_id);
		args[2] = Int32GetDatum(c_w_id);
		args[3] = Int32GetDatum(c_d_id);
		ret = SPI_execute_plan(PAYMENT_7_GC, args, nulls, false, 0);
		if (ret != SPI_OK_UPDATE) {
			SPI_finish();
			PG_RETURN_INT32(-1);
		}
	} else {
		char my_c_data[1000];

		sprintf(my_c_data, "%d %d %d %d %d %f ", my_c_id, c_d_id,
				c_w_id, d_id, w_id, h_amount);

		args[0] = Float4GetDatum(h_amount);
		args[1] = CStringGetTextDatum(my_c_data);
		args[2] = Int32GetDatum(my_c_id);
		args[3] = Int32GetDatum(c_w_id);
		args[4] = Int32GetDatum(c_d_id);
		ret = SPI_execute_plan(PAYMENT_7_BC, args, nulls, false, 0);
		if (ret != SPI_OK_UPDATE) {
			SPI_finish();
			PG_RETURN_INT32(-1);
		}
	}

	args[0] = Int32GetDatum(my_c_id);
	args[1] = Int32GetDatum(c_d_id);
	args[2] = Int32GetDatum(c_w_id);
	args[3] = Int32GetDatum(d_id);
	args[4] = Int32GetDatum(w_id);
	args[5] = Float4GetDatum(h_amount);
	args[6] = CStringGetTextDatum(w_name);
	args[7] = CStringGetTextDatum(d_name);
	ret = SPI_execute_plan(PAYMENT_8, args, nulls, false, 0);
	if (ret != SPI_OK_INSERT) {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	SPI_finish();
	PG_RETURN_INT32(1);
}
Beispiel #4
0
Datum stock_level(PG_FUNCTION_ARGS)
{
	/* Input variables. */
	int32 w_id = PG_GETARG_INT32(0);
	int32 d_id = PG_GETARG_INT32(1);
	int32 threshold = PG_GETARG_INT32(2);

	TupleDesc tupdesc;
	SPITupleTable *tuptable;
	HeapTuple tuple;

	int d_next_o_id = 0;
	int low_stock = 0;
	int ret;
	char *buf;

	Datum args[5];
	char nulls[5] = { ' ', ' ', ' ', ' ', ' ' };

	SPI_connect();

	plan_queries(statements);

	args[0] = Int32GetDatum(w_id);
	args[1] = Int32GetDatum(d_id);
	ret = SPI_execute_plan(STOCK_LEVEL_1, args, nulls, true, 0);
	if (ret == SPI_OK_SELECT && SPI_processed > 0) {
		tupdesc = SPI_tuptable->tupdesc;
		tuptable = SPI_tuptable;
		tuple = tuptable->vals[0];

		buf = SPI_getvalue(tuple, tupdesc, 1);
		elog(DEBUG1, "d_next_o_id = %s", buf);
		d_next_o_id = atoi(buf);
	} else {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	args[0] = Int32GetDatum(w_id);
	args[1] = Int32GetDatum(d_id);
	args[2] = Int32GetDatum(threshold);
	args[3] = Int32GetDatum(d_next_o_id - 20);
	args[4] = Int32GetDatum(d_next_o_id - 1);
	ret = SPI_execute_plan(STOCK_LEVEL_2, args, nulls, true, 0);
	if (ret == SPI_OK_SELECT && SPI_processed > 0) {
		tupdesc = SPI_tuptable->tupdesc;
		tuptable = SPI_tuptable;
		tuple = tuptable->vals[0];

		buf = SPI_getvalue(tuple, tupdesc, 1);
		elog(DEBUG1, "low_stock = %s", buf);
		low_stock = atoi(buf);
	} else {
		SPI_finish();
		PG_RETURN_INT32(-1);
	}

	SPI_finish();
	PG_RETURN_INT32(low_stock);
}
Beispiel #5
0
/* Clause 3.3.9.4 */
Datum TradeUpdateFrame2(PG_FUNCTION_ARGS)
{
	FuncCallContext *funcctx;
	AttInMetadata *attinmeta;
	int call_cntr;
	int max_calls;

	int i;
	int j;

	char **values = NULL;

	/* Stuff done only on the first call of the function. */
	if (SRF_IS_FIRSTCALL()) {
		MemoryContext oldcontext;

		enum tuf2 {
				i_bid_price=0, i_cash_transaction_amount,
				i_cash_transaction_dts, i_cash_transaction_name, i_exec_name,
				i_is_cash, i_num_found, i_num_updated, i_settlement_amount,
				i_settlement_cash_due_date, i_settlement_cash_type,
				i_trade_history_dts, i_trade_history_status_id, i_trade_list,
				i_trade_price
		};

		long acct_id = PG_GETARG_INT64(0);
		Timestamp end_trade_dts_ts = PG_GETARG_TIMESTAMP(1);
		int max_trades = PG_GETARG_INT32(2);
		int max_updates = PG_GETARG_INT32(3);
		Timestamp start_trade_dts_ts = PG_GETARG_TIMESTAMP(4);

		int ret;
		TupleDesc tupdesc;
		SPITupleTable *tuptable = NULL;
		HeapTuple tuple = NULL;

		struct pg_tm tt, *tm = &tt;
		fsec_t fsec;
		char *tzn = NULL;
#ifdef DEBUG
		char sql[2048];
#endif
		Datum args[4];
		char nulls[4] = { ' ', ' ', ' ', ' ' };

		char end_trade_dts[MAXDATELEN + 1];
		char start_trade_dts[MAXDATELEN + 1];

		int num_found;
		int num_updated = 0;
		int num_cash = 0;

		if (timestamp2tm(end_trade_dts_ts, NULL, tm, &fsec, NULL, NULL) == 0) {
			EncodeDateTimeM(tm, fsec, tzn, end_trade_dts);
		}
		if (timestamp2tm(start_trade_dts_ts, NULL, tm, &fsec, NULL, NULL) ==
				0) {
			EncodeDateTimeM(tm, fsec, tzn, start_trade_dts);
		}

#ifdef DEBUG
		dump_tuf2_inputs(acct_id, end_trade_dts, max_trades, max_updates,
				start_trade_dts);
#endif

		/*
		 * Prepare a values array for building the returned tuple.
		 * This should be an array of C strings, which will
		 * be processed later by the type input functions.
		 * Don't forget to factor in commas (,) and braces ({}) for the arrays.
		 */
		values = (char **) palloc(sizeof(char *) * 15);
		values[i_bid_price] =
				(char *) palloc(((S_PRICE_T_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_cash_transaction_amount] =
				(char *) palloc(((VALUE_T_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_cash_transaction_dts] =
				(char *) palloc(((MAXDATELEN + 1) * 20 + 2) * sizeof(char));
		values[i_cash_transaction_name] =
				(char *) palloc(((CT_NAME_LEN + 3) * 20 + 2) * sizeof(char));
		values[i_exec_name] = (char *) palloc(((T_EXEC_NAME_LEN + 3) * 20 +
				2) * sizeof(char));
		values[i_is_cash] =
				(char *) palloc(((SMALLINT_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_num_found] = (char *) palloc((INTEGER_LEN + 1) * sizeof(char));
		values[i_num_updated] =
				(char *) palloc((INTEGER_LEN + 1) * sizeof(char));
		values[i_settlement_amount] =
				(char *) palloc(((VALUE_T_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_settlement_cash_due_date] =
				(char *) palloc(((MAXDATELEN + 1) * 20 + 2) * sizeof(char));
		values[i_settlement_cash_type] = (char *) palloc(((SE_CASH_TYPE_LEN +
				3) * 20 + 2) * sizeof(char));
		values[i_trade_history_dts] = (char *) palloc((((MAXDATELEN + 2) * 3
				+ 2) * 20 + 5) * sizeof(char));
		values[i_trade_history_status_id] = (char *) palloc((((ST_ID_LEN +
				2) * 3 + 2) * 20 + 5) * sizeof(char));
		values[i_trade_list] =
				(char *) palloc(((BIGINT_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_trade_price] =
				(char *) palloc(((S_PRICE_T_LEN + 1) * 20 + 2) * sizeof(char));

		/* create a function context for cross-call persistence */
		funcctx = SRF_FIRSTCALL_INIT();
		funcctx->max_calls = 1;

		/* switch to memory context appropriate for multiple function calls */
		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);

		SPI_connect();
		plan_queries(TUF2_statements);
#ifdef DEBUG
		sprintf(sql, SQLTUF2_1, acct_id, start_trade_dts, end_trade_dts,
				max_trades);
		elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
		args[0] = Int64GetDatum(acct_id);
		args[1] = TimestampGetDatum(start_trade_dts_ts);
		args[2] = TimestampGetDatum(end_trade_dts_ts);
		args[3] = Int32GetDatum(max_trades);
		ret = SPI_execute_plan(TUF2_1, args, nulls, true, 0);
		if (ret == SPI_OK_SELECT && SPI_processed > 0) {
			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
		}

		num_found = SPI_processed;

		strcpy(values[i_bid_price], "{");
		strcpy(values[i_exec_name], "{");
		strcpy(values[i_is_cash], "{");
		strcpy(values[i_trade_list], "{");
		strcpy(values[i_trade_price], "{");
		strcpy(values[i_settlement_amount], "{");
		strcpy(values[i_settlement_cash_due_date], "{");
		strcpy(values[i_settlement_cash_type], "{");
		strcpy(values[i_cash_transaction_amount], "{");
		strcpy(values[i_cash_transaction_dts], "{");
		strcpy(values[i_cash_transaction_name], "{");
		strcpy(values[i_trade_history_dts], "{");
		strcpy(values[i_trade_history_status_id], "{");
		for (i = 0; i < num_found; i++) {
			TupleDesc l_tupdesc;
			SPITupleTable *l_tuptable = NULL;
			HeapTuple l_tuple = NULL;

			char *is_cash_str;
			char *trade_list;
			char cash_type[41];

			tuple = tuptable->vals[i];

			if (i > 0) {
				strcat(values[i_bid_price], ",");
				strcat(values[i_exec_name], ",");
				strcat(values[i_is_cash], ",");
				strcat(values[i_trade_list], ",");
				strcat(values[i_trade_price], ",");
				strcat(values[i_settlement_amount], ",");
				strcat(values[i_settlement_cash_due_date], ",");
				strcat(values[i_settlement_cash_type], ",");
				strcat(values[i_trade_history_dts], ",");
				strcat(values[i_trade_history_status_id], ",");
			}

			strcat(values[i_bid_price], SPI_getvalue(tuple, tupdesc, 1));
			strcat(values[i_exec_name], "\"");
			strcat(values[i_exec_name], SPI_getvalue(tuple, tupdesc, 2));
			strcat(values[i_exec_name], "\"");
			is_cash_str = SPI_getvalue(tuple, tupdesc, 3);
			strcat(values[i_is_cash], (is_cash_str[0] == 't' ? "0" : "1"));
			trade_list = SPI_getvalue(tuple, tupdesc, 4);
			strcat(values[i_trade_list], trade_list);
			strcat(values[i_trade_price], SPI_getvalue(tuple, tupdesc, 5));

			if (num_updated < max_updates) {
				char *old_cash_type;

#ifdef DEBUG
				sprintf(sql, SQLTUF2_2, trade_list);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[0] = Int64GetDatum(atoll(trade_list));
				ret = SPI_execute_plan(TUF2_2, args, nulls, true, 0);
				if (ret == SPI_OK_SELECT && SPI_processed > 0) {
					l_tupdesc = SPI_tuptable->tupdesc;
					l_tuptable = SPI_tuptable;
					l_tuple = l_tuptable->vals[0];
					old_cash_type = SPI_getvalue(l_tuple, l_tupdesc, 1);
				} else {
					FAIL_FRAME_SET(&funcctx->max_calls,
								TUF2_statements[1].sql);
					dump_tuf2_inputs(acct_id, end_trade_dts, max_trades,
							max_updates, start_trade_dts);
					continue;
				}

#ifdef DEBUG
				elog(NOTICE, "cash_type = '%s'", old_cash_type);
#endif /* DEBUG */

				if (is_cash_str[0] == 't') {
					if (strcmp(old_cash_type, "Cash Account") == 0) {
						strcpy(cash_type, "Cash");
					} else {
						strcpy(cash_type, "Cash Account");
					}
				} else {
					if (strcmp(old_cash_type, "Margin Account") == 0) {
						strcpy(cash_type, "Margin");
					} else {
						strcpy(cash_type, "Margin Account");
					}
				}

#ifdef DEBUG
				sprintf(sql, SQLTUF2_3, cash_type, trade_list);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[0] = CStringGetTextDatum(cash_type);
				args[1] = Int64GetDatum(atoll(trade_list));
				ret = SPI_execute_plan(TUF2_3, args, nulls, false, 0);
				if (ret != SPI_OK_UPDATE) {
					FAIL_FRAME_SET(&funcctx->max_calls,
								TUF2_statements[2].sql);
					dump_tuf2_inputs(acct_id, end_trade_dts, max_trades,
							max_updates, start_trade_dts);
					continue;
				}
				num_updated += SPI_processed;
			}

#ifdef DEBUG
			sprintf(sql, SQLTUF2_4, trade_list);
			elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
			args[0] = Int64GetDatum(atoll(trade_list));
			ret = SPI_execute_plan(TUF2_4, args, nulls, true, 0);
			if (ret == SPI_OK_SELECT && SPI_processed > 0) {
				l_tupdesc = SPI_tuptable->tupdesc;
				l_tuptable = SPI_tuptable;
				l_tuple = l_tuptable->vals[0];
				strcat(values[i_settlement_amount],
						SPI_getvalue(l_tuple, l_tupdesc, 1));
				strcat(values[i_settlement_cash_due_date],
						SPI_getvalue(l_tuple, l_tupdesc, 2));
				strcat(values[i_settlement_cash_type], "\"");
				strcat(values[i_settlement_cash_type],
						SPI_getvalue(l_tuple, l_tupdesc, 3));
				strcat(values[i_settlement_cash_type], "\"");
			} else {
				FAIL_FRAME_SET(&funcctx->max_calls,
							TUF2_statements[3].sql);
				dump_tuf2_inputs(acct_id, end_trade_dts, max_trades,
						max_updates, start_trade_dts);
				continue;
			}

			if (is_cash_str[0] == 't') {
#ifdef DEBUG
				sprintf(sql, SQLTUF2_5, trade_list);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				ret = SPI_execute_plan(TUF2_5, args, nulls, true, 0);
				if (ret == SPI_OK_SELECT && SPI_processed > 0) {
					l_tupdesc = SPI_tuptable->tupdesc;
					l_tuptable = SPI_tuptable;
					l_tuple = l_tuptable->vals[0];
					if (num_cash > 0) {
						strcat(values[i_cash_transaction_amount], ",");
						strcat(values[i_cash_transaction_dts], ",");
						strcat(values[i_cash_transaction_name], ",");
					}
					strcat(values[i_cash_transaction_amount],
							SPI_getvalue(l_tuple, l_tupdesc, 1));
					strcat(values[i_cash_transaction_dts],
							SPI_getvalue(l_tuple, l_tupdesc, 2));
					strcat(values[i_cash_transaction_name], "\"");
					strcat(values[i_cash_transaction_name],
							SPI_getvalue(l_tuple, l_tupdesc, 3));
					strcat(values[i_cash_transaction_name], "\"");
					++num_cash;
				} else {
					FAIL_FRAME_SET(&funcctx->max_calls,
								TUF2_statements[4].sql);
					dump_tuf2_inputs(acct_id, end_trade_dts, max_trades,
							max_updates, start_trade_dts);
					continue;
				}
			} else {
					if (num_cash > 0) {
						strcat(values[i_cash_transaction_amount], ",");
						strcat(values[i_cash_transaction_dts], ",");
						strcat(values[i_cash_transaction_name], ",");
					}
					strcat(values[i_cash_transaction_amount], "0");
					strcat(values[i_cash_transaction_dts], "1970-1-1 0:0:0");
					strcat(values[i_cash_transaction_name], "\"\"");
					++num_cash;
			}

#ifdef DEBUG
			sprintf(sql, SQLTUF2_6, trade_list);
			elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */

			ret = SPI_execute_plan(TUF2_6, args, nulls, true, 0);
			if (ret == SPI_OK_SELECT && SPI_processed > 0) {
				l_tupdesc = SPI_tuptable->tupdesc;
				l_tuptable = SPI_tuptable;
			} else {
				FAIL_FRAME_SET(&funcctx->max_calls, TUF2_statements[5].sql);
				dump_tuf2_inputs(acct_id, end_trade_dts, max_trades,
						max_updates, start_trade_dts);
				continue;
			}
			strcat(values[i_trade_history_dts], "{");
			strcat(values[i_trade_history_status_id], "{");
			for (j = 0; j < SPI_processed; j ++) {
				if (j > 0) {
					strcat(values[i_trade_history_dts], ",");
					strcat(values[i_trade_history_status_id], ",");
				}
				l_tuple = l_tuptable->vals[j];
				strcat(values[i_trade_history_dts],
							SPI_getvalue(l_tuple, l_tupdesc, 1));
				strcat(values[i_trade_history_status_id], "\"");
				strcat(values[i_trade_history_status_id],
							SPI_getvalue(l_tuple, l_tupdesc, 2));
				strcat(values[i_trade_history_status_id], "\"");
			}
                        for (j = SPI_processed; j < 3; j++) {
                                if (j > 0) {
                                        strcat(values[i_trade_history_dts], ",");
                                        strcat(values[i_trade_history_status_id], ",");
                                }
                                strcat(values[i_trade_history_dts], "NULL");
                                strcat(values[i_trade_history_status_id], "\"\"");
                        }
			strcat(values[i_trade_history_dts], "}");
			strcat(values[i_trade_history_status_id], "}");
		}
		strcat(values[i_bid_price], "}");
		strcat(values[i_exec_name], "}");
		strcat(values[i_is_cash], "}");
		strcat(values[i_trade_list], "}");
		strcat(values[i_trade_price], "}");
		strcat(values[i_settlement_amount], "}");
		strcat(values[i_settlement_cash_due_date], "}");
		strcat(values[i_settlement_cash_type], "}");
		strcat(values[i_cash_transaction_amount], "}");
		strcat(values[i_cash_transaction_dts], "}");
		strcat(values[i_cash_transaction_name], "}");
		strcat(values[i_trade_history_dts], "}");
		strcat(values[i_trade_history_status_id], "}");

		sprintf(values[i_num_found], "%d", num_found);
		sprintf(values[i_num_updated], "%d", num_updated);

		/* Build a tuple descriptor for our result type */
		if (get_call_result_type(fcinfo, NULL, &tupdesc) !=
				TYPEFUNC_COMPOSITE) {
			ereport(ERROR,
					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
					errmsg("function returning record called in context "
							"that cannot accept type record")));
		}

		/*
		 * generate attribute metadata needed later to produce tuples from raw
		 * C strings
		 */
		attinmeta = TupleDescGetAttInMetadata(tupdesc);
		funcctx->attinmeta = attinmeta;

		MemoryContextSwitchTo(oldcontext);
	}

	/* stuff done on every call of the function */
	funcctx = SRF_PERCALL_SETUP();

	call_cntr = funcctx->call_cntr;
	max_calls = funcctx->max_calls;
	attinmeta = funcctx->attinmeta;

	if (call_cntr < max_calls) {
		/* do when there is more left to send */
		HeapTuple tuple;
		Datum result;

#ifdef DEBUG
		for (i = 0; i < 15; i++) {
			elog(NOTICE, "TUF2 OUT: %d %s", i, values[i]);
		}
#endif /* DEBUG */

		/* Build a tuple. */
		tuple = BuildTupleFromCStrings(attinmeta, values);

		/* Make the tuple into a datum. */
		result = HeapTupleGetDatum(tuple);

		SRF_RETURN_NEXT(funcctx, result);
	} else {
		/* Do when there is no more left. */
		SPI_finish();
		SRF_RETURN_DONE(funcctx);
	}
}
Beispiel #6
0
/* Clause 3.3.9.3 */
Datum TradeUpdateFrame1(PG_FUNCTION_ARGS)
{
	FuncCallContext *funcctx;
	AttInMetadata *attinmeta;
	int call_cntr;
	int max_calls;

	int i;
	int j;

	char **values = NULL;

	/* Stuff done only on the first call of the function. */
	if (SRF_IS_FIRSTCALL()) {
		MemoryContext oldcontext;

		enum tuf1 {
				i_bid_price=0, i_cash_transaction_amount,
				i_cash_transaction_dts, i_cash_transaction_name, i_exec_name,
				i_is_cash, i_is_market, i_num_found, i_num_updated,
				i_settlement_amount, i_settlement_cash_due_date,
				i_settlement_cash_type, i_trade_history_dts,
				i_trade_history_status_id, i_trade_price
		};

		int max_trades = PG_GETARG_INT32(0);
		int max_updates = PG_GETARG_INT32(1);
		ArrayType *trade_id_p = PG_GETARG_ARRAYTYPE_P(2);

		int16 typlen;
		bool typbyval;
		char typalign;

		int ndim, nitems;
		int *dim;
		long *trade_id;

		int ret;
		TupleDesc tupdesc;
		SPITupleTable *tuptable = NULL;
		HeapTuple tuple = NULL;
#ifdef DEBUG
		char sql[2048];
#endif
		Datum args[2];
		char nulls[2] = { ' ', ' ' };

		int num_found = max_trades;
		int num_updated = 0;
		int num_updated4 = 0;
		int num_updated5 = 0;
		int num_updated7 = 0;
		int num_cash = 0;

		ndim = ARR_NDIM(trade_id_p);
		dim = ARR_DIMS(trade_id_p);
		nitems = ArrayGetNItems(ndim, dim);

		get_typlenbyvalalign(ARR_ELEMTYPE(trade_id_p), &typlen, &typbyval,
				&typalign);
		trade_id = (long *) ARR_DATA_PTR(trade_id_p);

		/*
		 * Prepare a values array for building the returned tuple.
		 * This should be an array of C strings, which will
		 * be processed later by the type input functions.
		 * Don't forget to factor in commas (,) and braces ({}) for the arrays.
		 */
		values = (char **) palloc(sizeof(char *) * 15);
		values[i_bid_price] =
				(char *) palloc(((S_PRICE_T_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_cash_transaction_amount] =
				(char *) palloc(((VALUE_T_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_cash_transaction_dts] =
				(char *) palloc(((MAXDATELEN + 1) * 20 + 2) * sizeof(char));
		values[i_cash_transaction_name] =
				(char *) palloc(((CT_NAME_LEN + 3) * 20 + 2) * sizeof(char));
		values[i_exec_name] = (char *) palloc(((T_EXEC_NAME_LEN + 3) * 20 +
				2) * sizeof(char));
		values[i_is_cash] =
				(char *) palloc(((SMALLINT_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_is_market] =
				(char *) palloc(((SMALLINT_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_num_found] = (char *) palloc((INTEGER_LEN + 1) * sizeof(char));
		values[i_num_updated] =
				(char *) palloc((INTEGER_LEN + 1) * sizeof(char));
		values[i_settlement_amount] =
				(char *) palloc(((VALUE_T_LEN + 1) * 20 + 2) * sizeof(char));
		values[i_settlement_cash_due_date] =
				(char *) palloc(((MAXDATELEN + 1) * 20 + 2) * sizeof(char));
		values[i_settlement_cash_type] = (char *) palloc(((SE_CASH_TYPE_LEN +
				3) * 20 + 2) * sizeof(char));
		values[i_trade_history_dts] = (char *) palloc(((MAXDATELEN * 3 + 4) *
				20 + 22) * sizeof(char));
		values[i_trade_history_status_id] = (char *) palloc((((ST_ID_LEN +
				2) * 3 + 4) * 20 + 22) * sizeof(char));
		values[i_trade_price] =
				(char *) palloc(((S_PRICE_T_LEN + 1) * 20 + 2) * sizeof(char));

#ifdef DEBUG
		dump_tuf1_inputs(max_trades, max_updates, trade_id);
#endif

		/* create a function context for cross-call persistence */
		funcctx = SRF_FIRSTCALL_INIT();
		funcctx->max_calls = 1;

		/* switch to memory context appropriate for multiple function calls */
		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);

		SPI_connect();
		plan_queries(TUF1_statements);

		strcpy(values[i_bid_price], "{");
		strcpy(values[i_exec_name], "{");
		strcpy(values[i_is_cash], "{");
		strcpy(values[i_is_market], "{");
		strcpy(values[i_trade_price], "{");
		strcpy(values[i_settlement_amount], "{");
		strcpy(values[i_settlement_cash_due_date], "{");
		strcpy(values[i_settlement_cash_type], "{");
		strcpy(values[i_cash_transaction_amount], "{");
		strcpy(values[i_cash_transaction_dts], "{");
		strcpy(values[i_cash_transaction_name], "{");
		strcpy(values[i_trade_history_dts], "{");
		strcpy(values[i_trade_history_status_id], "{");
		for (i = 0; i < max_trades; i++) {
			char *is_cash_str = NULL;
			char *is_market_str;

			if (num_updated < max_updates) {
				char *ex_name;

#ifdef DEBUG
				sprintf(sql, SQLTUF1_1, trade_id[i]);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[0] = Int64GetDatum(trade_id[i]);
				ret = SPI_execute_plan(TUF1_1, args, nulls, true, 0);
				if (ret == SPI_OK_SELECT && SPI_processed > 0) {
					tupdesc = SPI_tuptable->tupdesc;
					tuptable = SPI_tuptable;
					tuple = tuptable->vals[0];
					ex_name = SPI_getvalue(tuple, tupdesc, 1);
				} else {
					continue;
				}

#ifdef DEBUG
				elog(NOTICE, "ex_name = %s", ex_name);

				if (strstr(ex_name, " X ")) {
					sprintf(sql, SQLTUF1_2a, ex_name);
				} else {
					sprintf(sql, SQLTUF1_2b, ex_name);
				}
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[0] = CStringGetTextDatum(ex_name);
				if (strstr(ex_name, " X ")) {
					ret = SPI_execute_plan(TUF1_2a,
							args, nulls, true, 0);
				} else {
					ret = SPI_execute_plan(TUF1_2b,
							args, nulls, true, 0);
				}
				if (ret == SPI_OK_SELECT && SPI_processed > 0) {
					tupdesc = SPI_tuptable->tupdesc;
					tuptable = SPI_tuptable;
					tuple = tuptable->vals[0];
					ex_name = SPI_getvalue(tuple, tupdesc, 1);
				} else {
					FAIL_FRAME_SET(&funcctx->max_calls,
					strstr(ex_name, " X ")? TUF1_statements[1].sql:
								TUF1_statements[2].sql);
					dump_tuf1_inputs(max_trades, max_updates, trade_id);
					continue;
				}

#ifdef DEBUG
				elog(NOTICE, "ex_name = %s", ex_name);
				sprintf(sql, SQLTUF1_3, ex_name, trade_id[i]);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				args[1] = Int64GetDatum(trade_id[i]);
				ret = SPI_execute_plan(TUF1_3, args, nulls, false, 0);
				if (ret != SPI_OK_UPDATE) {
					FAIL_FRAME_SET(&funcctx->max_calls,
								TUF1_statements[4].sql);
					dump_tuf1_inputs(max_trades, max_updates, trade_id);
					continue;
				}

				num_updated += SPI_processed;
			}

#ifdef DEBUG
			sprintf(sql, SQLTUF1_4, trade_id[i]);
			elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
			args[0] = Int64GetDatum(trade_id[i]);
			ret = SPI_execute_plan(TUF1_4, args, nulls, true, 0);
			if (ret != SPI_OK_SELECT) {
				FAIL_FRAME_SET(&funcctx->max_calls,
							TUF1_statements[5].sql);
				dump_tuf1_inputs(max_trades, max_updates, trade_id);
				continue;
			}

			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
			for (j = 0; j < SPI_processed; j++) {
				char *trade_price;
				if (num_updated4 > 0) {
					strcat(values[i_bid_price], ",");
					strcat(values[i_exec_name], ",");
					strcat(values[i_is_cash], ",");
					strcat(values[i_is_market], ",");
					strcat(values[i_trade_price], ",");
				}

				tuple = tuptable->vals[j];
				strcat(values[i_bid_price], SPI_getvalue(tuple, tupdesc, 1));
				strcat(values[i_exec_name], "\"");
				strcat(values[i_exec_name], SPI_getvalue(tuple, tupdesc, 2));
				strcat(values[i_exec_name], "\"");
				is_cash_str = SPI_getvalue(tuple, tupdesc, 3);
				strcat(values[i_is_cash], (is_cash_str[0] == 't' ? "1": "0"));
				is_market_str = SPI_getvalue(tuple, tupdesc, 4);
				strcat(values[i_is_market],
						(is_market_str[0] == 't' ? "0" : "1"));
				trade_price = SPI_getvalue(tuple, tupdesc, 5);
				if (trade_price != NULL)
					strcat(values[i_trade_price],
							SPI_getvalue(tuple, tupdesc, 5));
				else
					strcat(values[i_trade_price], "NULL");

				num_updated4++;
			}

#ifdef DEBUG
			sprintf(sql, SQLTUF1_5, trade_id[i]);
			elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
			ret = SPI_execute_plan(TUF1_5, args, nulls, true, 0);
			if (ret != SPI_OK_SELECT) {
				FAIL_FRAME_SET(&funcctx->max_calls,
							TUF1_statements[6].sql);
				dump_tuf1_inputs(max_trades, max_updates, trade_id);
				continue;
			}

			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
			for (j = 0; j < SPI_processed; j++) {
				if (num_updated5 > 0) {
					strcat(values[i_settlement_amount], ",");
					strcat(values[i_settlement_cash_due_date], ",");
					strcat(values[i_settlement_cash_type], ",");
				}

				tuple = tuptable->vals[j];
				strcat(values[i_settlement_amount],
						SPI_getvalue(tuple, tupdesc, 1));
				strcat(values[i_settlement_cash_due_date],
						SPI_getvalue(tuple, tupdesc, 2));
				strcat(values[i_settlement_cash_type], "\"");
				strcat(values[i_settlement_cash_type],
						SPI_getvalue(tuple, tupdesc, 3));
				strcat(values[i_settlement_cash_type], "\"");

				num_updated5++;
			}

			if (is_cash_str[0] == 't') {
				if (num_cash > 0) {
					strcat(values[i_cash_transaction_amount], ",");
					strcat(values[i_cash_transaction_dts], ",");
					strcat(values[i_cash_transaction_name], ",");
				}

#ifdef DEBUG
				sprintf(sql, SQLTUF1_6, trade_id[i]);
				elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
				ret = SPI_execute_plan(TUF1_6, args, nulls, true, 0);
				if (ret == SPI_OK_SELECT && SPI_processed > 0) {
					tupdesc = SPI_tuptable->tupdesc;
					tuptable = SPI_tuptable;
					tuple = tuptable->vals[0];
					strcat(values[i_cash_transaction_amount],
							SPI_getvalue(tuple, tupdesc, 1));
					strcat(values[i_cash_transaction_dts],
							SPI_getvalue(tuple, tupdesc, 2));
					strcat(values[i_cash_transaction_name], "\"");
					strcat(values[i_cash_transaction_name],
							SPI_getvalue(tuple, tupdesc, 3));
					strcat(values[i_cash_transaction_name], "\"");
					++num_cash;
				} else {
					FAIL_FRAME_SET(&funcctx->max_calls,
								TUF1_statements[7].sql);
					dump_tuf1_inputs(max_trades, max_updates, trade_id);
					continue;
				}
			}

#ifdef DEBUG
			sprintf(sql, SQLTUF1_7, trade_id[i]);
			elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
			ret = SPI_execute_plan(TUF1_7, args, nulls, true, 0);
			if (ret == SPI_OK_SELECT) {
				tupdesc = SPI_tuptable->tupdesc;
				tuptable = SPI_tuptable;
			} else {
				FAIL_FRAME_SET(&funcctx->max_calls,
							TUF1_statements[8].sql);
				dump_tuf1_inputs(max_trades, max_updates, trade_id);
				continue;
			}

			if (num_updated7 > 0) {
				strcat(values[i_trade_history_dts], ",");
				strcat(values[i_trade_history_status_id], ",");
			}
			strcat(values[i_trade_history_dts], "{");
			strcat(values[i_trade_history_status_id], "{");
			for (j = 0; j < SPI_processed; j++) {
				if (j > 0) {
					strcat(values[i_trade_history_dts], ",");
					strcat(values[i_trade_history_status_id], ",");
				}

				tuple = tuptable->vals[j];
				strcat(values[i_trade_history_dts],
							SPI_getvalue(tuple, tupdesc, 1));
				strcat(values[i_trade_history_status_id], "\"");
				strcat(values[i_trade_history_status_id],
							SPI_getvalue(tuple, tupdesc, 2));
				strcat(values[i_trade_history_status_id], "\"");

				num_updated7++;
			}
			for (j = SPI_processed; j < 3; j++) {
				if (j > 0) {
					strcat(values[i_trade_history_dts], ",");
					strcat(values[i_trade_history_status_id], ",");
				}
				strcat(values[i_trade_history_dts], "NULL");
				strcat(values[i_trade_history_status_id], "\"\"");

				num_updated7++;
			}
			strcat(values[i_trade_history_dts], "}");
			strcat(values[i_trade_history_status_id], "}");
		}
		strcat(values[i_bid_price], "}");
		strcat(values[i_exec_name], "}");
		strcat(values[i_is_cash], "}");
		strcat(values[i_is_market], "}");
		strcat(values[i_trade_price], "}");
		strcat(values[i_settlement_amount], "}");
		strcat(values[i_settlement_cash_due_date], "}");
		strcat(values[i_settlement_cash_type], "}");
		strcat(values[i_cash_transaction_amount], "}");
		strcat(values[i_cash_transaction_dts], "}");
		strcat(values[i_cash_transaction_name], "}");
		strcat(values[i_trade_history_dts], "}");
		strcat(values[i_trade_history_status_id], "}");

		sprintf(values[i_num_found], "%d", num_found);
		sprintf(values[i_num_updated], "%d", num_updated);

		/* Build a tuple descriptor for our result type */
		if (get_call_result_type(fcinfo, NULL, &tupdesc) !=
				TYPEFUNC_COMPOSITE) {
			ereport(ERROR,
					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
					errmsg("function returning record called in context "
							"that cannot accept type record")));
		}

		/*
		 * generate attribute metadata needed later to produce tuples from raw
		 * C strings
		 */
		attinmeta = TupleDescGetAttInMetadata(tupdesc);
		funcctx->attinmeta = attinmeta;

		MemoryContextSwitchTo(oldcontext);
	}

	/* stuff done on every call of the function */
	funcctx = SRF_PERCALL_SETUP();

	call_cntr = funcctx->call_cntr;
	max_calls = funcctx->max_calls;
	attinmeta = funcctx->attinmeta;

	if (call_cntr < max_calls) {
		/* do when there is more left to send */
		HeapTuple tuple;
		Datum result;

#ifdef DEBUG
		for (i = 0; i < 15; i++) {
			elog(NOTICE, "TUF1 OUT: %d %s", i, values[i]);
		}
#endif /* DEBUG */

		/* Build a tuple. */
		tuple = BuildTupleFromCStrings(attinmeta, values);

		/* Make the tuple into a datum. */
		result = HeapTupleGetDatum(tuple);

		SRF_RETURN_NEXT(funcctx, result);
	} else {
		/* Do when there is no more left. */
		SPI_finish();
		SRF_RETURN_DONE(funcctx);
	}
}
Beispiel #7
0
/* Clause 3.3.1.3 */
Datum BrokerVolumeFrame1(PG_FUNCTION_ARGS)
{
	FuncCallContext *funcctx;
	AttInMetadata *attinmeta;
	int call_cntr;
	int max_calls;

	int i;

	int ndim, nitems;
	int *dim;
	char *broker_list;	

	char **values = NULL;

	/* Stuff done only on the first call of the function. */
	if (SRF_IS_FIRSTCALL()) {
		MemoryContext oldcontext;

		ArrayType *broker_list_p = PG_GETARG_ARRAYTYPE_P(0);
		text *sector_name_p = PG_GETARG_TEXT_P(1);

		enum bvf1 { i_broker_name=0, i_list_len, i_volume };

		int16 typlen;
		bool typbyval;
		char typalign;

		int ret;
		TupleDesc tupdesc;
		SPITupleTable *tuptable = NULL;
		HeapTuple tuple = NULL;
#ifdef DEBUG
		char sql[2048];
#endif
		char broker_list_array[(B_NAME_LEN + 3) * 40 + 5] = "'{";
		Datum args[2];
		char nulls[2] = { ' ', ' ' };

		/*
		 * Prepare a values array for building the returned tuple.
		 * This should be an array of C strings, which will
		 * be processed later by the type input functions.
		 */
		values = (char **) palloc(sizeof(char *) * 3);
		values[i_list_len] = (char *) palloc((SMALLINT_LEN + 1) * sizeof(char));

		/*
		 * This might be overkill since we always expect single dimensions
		 * arrays.
		 */
		ndim = ARR_NDIM(broker_list_p);
		dim = ARR_DIMS(broker_list_p);
		nitems = ArrayGetNItems(ndim, dim);
		get_typlenbyvalalign(ARR_ELEMTYPE(broker_list_p), &typlen, &typbyval,
				&typalign);
		broker_list = ARR_DATA_PTR(broker_list_p);
		/* Turn the broker_list input into an array format. */
		if (nitems > 0) {
			strcat(broker_list_array, "\"");
			strcat(broker_list_array,
					DatumGetCString(DirectFunctionCall1(textout,
					PointerGetDatum(broker_list))));
			broker_list = att_addlength_pointer(broker_list, typlen,
					broker_list);
			broker_list = (char *) att_align_nominal(broker_list,
					typalign);
			strcat(broker_list_array, "\"");
		}
		for (i = 1; i < nitems; i++) {
			strcat(broker_list_array, ",\"");
			strcat(broker_list_array,
					DatumGetCString(DirectFunctionCall1(textout,
					PointerGetDatum(broker_list))));
			broker_list = att_addlength_pointer(broker_list, typlen,
					broker_list);
			broker_list = (char *) att_align_nominal(broker_list,
					typalign);
			strcat(broker_list_array, "\"");
		}
		strcat(broker_list_array, "}'");
#ifdef DEBUG
		dump_bvf1_inputs(broker_list_p, sector_name_p);
#endif

		/* create a function context for cross-call persistence */
		funcctx = SRF_FIRSTCALL_INIT();
		funcctx->max_calls = 1;

		/* switch to memory context appropriate for multiple function calls */
		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);

		SPI_connect();
		plan_queries(BVF1_statements);
#ifdef DEBUG
		sprintf(sql, SQLBVF1_1, broker_list_array,
				DatumGetCString(DirectFunctionCall1(textout,
				PointerGetDatum(sector_name_p))));
		elog(NOTICE, "SQL\n%s", sql);
#endif /* DEBUG */
		args[0] = PointerGetDatum(broker_list_p);
		args[1] = PointerGetDatum(sector_name_p);
		ret = SPI_execute_plan(BVF1_1, args, nulls, true, 0);
		if (ret == SPI_OK_SELECT) {
			tupdesc = SPI_tuptable->tupdesc;
			tuptable = SPI_tuptable;
			tuple = tuptable->vals[0];
		} else {
			dump_bvf1_inputs(broker_list_p, sector_name_p);
			FAIL_FRAME_SET(&funcctx->max_calls, BVF1_statements[0].sql);
		}

		sprintf(values[i_list_len], "%d", SPI_processed);
		values[i_broker_name] = (char *) palloc(((B_NAME_LEN + 2) *
				(SPI_processed + 1) + 3) * sizeof(char));
		values[i_volume] = (char *) palloc((INTEGER_LEN *
				(SPI_processed + 1) + 3) * sizeof(char));

		if (SPI_processed == 0) {
			strcpy(values[i_broker_name], "{}");
			strcpy(values[i_volume], "{}");
		} else {
			strcpy(values[i_broker_name], "{");
			strcpy(values[i_volume], "{");

			if (SPI_processed > 0) {
				strcat(values[i_broker_name], "\"");
				strcat(values[i_broker_name], SPI_getvalue(tuple, tupdesc, 1));
				strcat(values[i_broker_name], "\"");
				strcat(values[i_volume], SPI_getvalue(tuple, tupdesc, 2));
			}
			for (i = 1; i < SPI_processed; i++) {
				tuple = tuptable->vals[i];
				strcat(values[i_broker_name], ",");
				strcat(values[i_broker_name], "\"");
				strcat(values[i_broker_name], SPI_getvalue(tuple, tupdesc, 1));
				strcat(values[i_broker_name], "\"");

				strcat(values[i_volume], ",");
				strcat(values[i_volume], SPI_getvalue(tuple, tupdesc, 2));
			}
			strcat(values[i_broker_name], "}");
			strcat(values[i_volume], "}");
		}

		/* Build a tuple descriptor for our result type */
		if (get_call_result_type(fcinfo, NULL, &tupdesc) !=
				TYPEFUNC_COMPOSITE) {
			ereport(ERROR,
					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
					errmsg("function returning record called in context "
							"that cannot accept type record")));
		}

		/*
		 * generate attribute metadata needed later to produce tuples from raw
		 * C strings
		 */
		attinmeta = TupleDescGetAttInMetadata(tupdesc);
		funcctx->attinmeta = attinmeta;

		MemoryContextSwitchTo(oldcontext);
	}

	/* stuff done on every call of the function */
	funcctx = SRF_PERCALL_SETUP();

	call_cntr = funcctx->call_cntr;
	max_calls = funcctx->max_calls;
	attinmeta = funcctx->attinmeta;

	if (call_cntr < max_calls) {
		/* do when there is more left to send */
		HeapTuple tuple;
		Datum result;

#ifdef DEBUG                                                                    
		for (i = 0; i < 3; i++) {
			elog(NOTICE, "BVF1 OUT: %d %s", i, values[i]);
		}
#endif /* DEBUG */

		/* Build a tuple. */
		tuple = BuildTupleFromCStrings(attinmeta, values);

		/* Make the tuple into a datum. */
		result = HeapTupleGetDatum(tuple);

		SRF_RETURN_NEXT(funcctx, result);
	} else {
		/* Do when there is no more left. */
		SPI_finish();
		SRF_RETURN_DONE(funcctx);
	}
}