| /* |
| * gp_optimizer_functions.c |
| * Defines builtin transformation functions for the optimizer. |
| * |
| * enable_xform: This function wraps EnableXform. |
| * |
| * disable_xform: This function wraps DisableXform. |
| * |
| * gp_opt_version: This function wraps LibraryVersion. |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| |
| #include "postgres.h" |
| |
| #include "funcapi.h" |
| #include "utils/builtins.h" |
| |
| extern Datum EnableXform(PG_FUNCTION_ARGS); |
| |
| /* |
| * Enables transformations in the optimizer. |
| */ |
| Datum |
| enable_xform(PG_FUNCTION_ARGS) |
| { |
| #ifdef USE_ORCA |
| return EnableXform(fcinfo); |
| #else |
| return CStringGetTextDatum("Pivotal Query Optimizer not supported"); |
| #endif |
| } |
| |
| extern Datum DisableXform(PG_FUNCTION_ARGS); |
| |
| /* |
| * Disables transformations in the optimizer. |
| */ |
| Datum |
| disable_xform(PG_FUNCTION_ARGS) |
| { |
| #ifdef USE_ORCA |
| return DisableXform(fcinfo); |
| #else |
| return CStringGetTextDatum("Pivotal Query Optimizer not supported"); |
| #endif |
| } |
| |
| extern Datum LibraryVersion(); |
| |
| /* |
| * Returns the optimizer and gpos library versions. |
| */ |
| Datum |
| gp_opt_version(PG_FUNCTION_ARGS __attribute__((unused))) |
| { |
| #ifdef USE_ORCA |
| return LibraryVersion(); |
| #else |
| return CStringGetTextDatum("Pivotal Query Optimizer not supported"); |
| #endif |
| } |