greenplumn interpolate 源码
greenplumn interpolate 代码
文件路径：/src/include/utils/interpolate.h
/*-----------------------------------------------------------------------
*
* interpolate.h
*
* Portions Copyright (c) 2012, Greenplum inc
* Portions Copyright (c) 2012-Present VMware, Inc. or its affiliates.
*
*
* IDENTIFICATION
* src/include/utils/interpolate.h
*
*-----------------------------------------------------------------------
*/
#ifndef _INTERPOLATE_H_
#define _INTERPOLATE_H_
#include "fmgr.h"
extern Datum
linterp_int64(PG_FUNCTION_ARGS);
extern Datum
linterp_int32(PG_FUNCTION_ARGS);
extern Datum
linterp_int16(PG_FUNCTION_ARGS);
extern Datum
linterp_float8(PG_FUNCTION_ARGS);
extern Datum
linterp_float4(PG_FUNCTION_ARGS);
extern Datum
linterp_DateADT(PG_FUNCTION_ARGS);
extern Datum
linterp_TimeADT(PG_FUNCTION_ARGS);
extern Datum
linterp_Timestamp(PG_FUNCTION_ARGS);
extern Datum
linterp_TimestampTz(PG_FUNCTION_ARGS);
extern Datum
linterp_Interval(PG_FUNCTION_ARGS);
extern Datum
linterp_Numeric(PG_FUNCTION_ARGS);
#endif /* _INTERPOLATE_H_ */
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