greenplumn orafce 源码
greenplumn orafce 代码
文件路径：/gpcontrib/orafce/orafce.h
#ifndef __ORAFCE__
#define __ORAFCE__
#include "postgres.h"
#include "catalog/catversion.h"
#include "nodes/pg_list.h"
#include <sys/time.h>
#include "utils/datetime.h"
#include "utils/datum.h"
#define TextPCopy(t) \
DatumGetTextP(datumCopy(PointerGetDatum(t), false, -1))
#define PG_GETARG_IF_EXISTS(n, type, defval) \
((PG_NARGS() > (n) && !PG_ARGISNULL(n)) ? PG_GETARG_##type(n) : (defval))
/* alignment of this struct must fit for all types */
typedef union vardata
{
char c;
short s;
int i;
long l;
float f;
double d;
void *p;
} vardata;
extern int ora_instr(text *txt, text *pattern, int start, int nth);
extern int ora_mb_strlen(text *str, char **sizes, int **positions);
extern int ora_mb_strlen1(text *str);
extern char *nls_date_format;
extern char *orafce_timezone;
extern char *nls_date_format;
extern char *orafce_timezone;
extern bool orafce_varchar2_null_safe_concat;
/*
* Version compatibility
*/
extern Oid equality_oper_funcid(Oid argtype);
/*
* Date utils
*/
#define STRING_PTR_FIELD_TYPE const char *const
extern STRING_PTR_FIELD_TYPE ora_days[];
extern int ora_seq_search(const char *name, STRING_PTR_FIELD_TYPE array[], size_t max);
#ifdef _MSC_VER
#define int2size(v) (size_t)(v)
#define size2int(v) (int)(v)
#else
#define int2size(v) v
#define size2int(v) v
#endif
#endif
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