90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/*-------------------------------------------------------------------------
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*
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* polar_px.c
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* POALR_PX install polar_px_workerid function into pg_proc
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* for px subselect.
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*
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* Copyright (c) 2020, Alibaba Group Holding Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* IDENTIFICATION
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* external/polar_px/polar_px.c
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include <unistd.h>
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#include "access/hash.h"
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#include "catalog/pg_type.h"
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#include "executor/executor.h"
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#include "funcapi.h"
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#include "miscadmin.h"
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#include "pgstat.h"
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#include "postmaster/autovacuum.h"
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#include "storage/fd.h"
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#include "storage/ipc.h"
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#include "storage/spin.h"
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#include "utils/guc.h"
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#include "utils/builtins.h"
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#include "postmaster/postmaster.h"
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PG_MODULE_MAGIC;
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/*--- Functions --- */
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void _PG_init(void);
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void _PG_fini(void);
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void
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_PG_init(void)
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{
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if (!process_shared_preload_libraries_in_progress)
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{
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elog(ERROR, "This module can only be loaded via shared_preload_libraries");
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return;
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}
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}
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void
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_PG_fini(void)
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{
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}
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PG_FUNCTION_INFO_V1(polar_px_workerid);
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Datum
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polar_px_workerid(PG_FUNCTION_ARGS)
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{
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int workerid;
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workerid = get_px_workerid();
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PG_RETURN_INT32(workerid);
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}
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PG_FUNCTION_INFO_V1(polar_px_workerid_funcid);
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Datum
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polar_px_workerid_funcid(PG_FUNCTION_ARGS)
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{
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uint32 funcid;
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funcid = get_px_workerid_funcid();
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PG_RETURN_INT32(funcid);
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}
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