#include "fmgr.h"

Include dependency graph for numeric.h:

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Macros
#define	NUMERIC_MAX_PRECISION 1000

#define	NUMERIC_MAX_DISPLAY_SCALE NUMERIC_MAX_PRECISION

#define	NUMERIC_MIN_DISPLAY_SCALE 0

#define	NUMERIC_MAX_RESULT_SCALE (NUMERIC_MAX_PRECISION * 2)

#define	NUMERIC_MIN_SIG_DIGITS 16

#define	DatumGetNumeric(X) ((Numeric) PG_DETOAST_DATUM(X))

#define	DatumGetNumericCopy(X) ((Numeric) PG_DETOAST_DATUM_COPY(X))

#define	NumericGetDatum(X) PointerGetDatum(X)

#define	PG_GETARG_NUMERIC(n) DatumGetNumeric(PG_GETARG_DATUM(n))

#define	PG_GETARG_NUMERIC_COPY(n) DatumGetNumericCopy(PG_GETARG_DATUM(n))

#define	PG_RETURN_NUMERIC(x) return NumericGetDatum(x)

Typedefs
typedef struct NumericData *	Numeric

Functions
bool	numeric_is_nan (Numeric num)

int32	numeric_maximum_size (int32 typmod)

char *	numeric_out_sci (Numeric num, int scale)

char *	numeric_normalize (Numeric num)

Macro Definition Documentation

#define DatumGetNumeric ( X ) ((Numeric) PG_DETOAST_DATUM(X))

#define DatumGetNumericCopy ( X ) ((Numeric) PG_DETOAST_DATUM_COPY(X))

Definition at line 50 of file numeric.h.

#define NUMERIC_MAX_DISPLAY_SCALE NUMERIC_MAX_PRECISION

Definition at line 29 of file numeric.h.

Referenced by log_var(), numeric_exp(), numeric_ln(), numeric_sqrt(), power_var(), power_var_int(), and select_div_scale().

#define NUMERIC_MAX_PRECISION 1000

Definition at line 24 of file numeric.h.

Referenced by numerictypmodin().

#define NUMERIC_MAX_RESULT_SCALE (NUMERIC_MAX_PRECISION * 2)

Definition at line 32 of file numeric.h.

Referenced by exp_var(), numeric_exp(), numeric_round(), numeric_trunc(), and power_var().

#define NUMERIC_MIN_DISPLAY_SCALE 0

Definition at line 30 of file numeric.h.

Referenced by exp_var(), ln_var(), log_var(), numeric_exp(), numeric_ln(), numeric_sqrt(), power_var(), power_var_int(), and select_div_scale().

#define NUMERIC_MIN_SIG_DIGITS 16

Definition at line 39 of file numeric.h.

Referenced by log_var(), numeric_exp(), numeric_ln(), numeric_sqrt(), power_var(), and select_div_scale().

#define NumericGetDatum ( X ) PointerGetDatum(X)

#define PG_GETARG_NUMERIC ( n ) DatumGetNumeric(PG_GETARG_DATUM(n))

Definition at line 52 of file numeric.h.

Referenced by generate_series_step_numeric(), hash_numeric(), int8_sum(), numeric(), numeric_abs(), numeric_accum(), numeric_accum_inv(), numeric_add(), numeric_avg_accum(), numeric_ceil(), numeric_cmp(), numeric_div(), numeric_div_trunc(), numeric_eq(), numeric_exp(), numeric_float4(), numeric_float8(), numeric_float8_no_overflow(), numeric_floor(), numeric_ge(), numeric_gt(), numeric_inc(), numeric_int2(), numeric_int4(), numeric_int8(), numeric_larger(), numeric_le(), numeric_ln(), numeric_log(), numeric_lt(), numeric_mod(), numeric_mul(), numeric_ne(), numeric_out(), numeric_power(), numeric_round(), numeric_scale(), numeric_send(), numeric_sign(), numeric_smaller(), numeric_sqrt(), numeric_sub(), numeric_to_char(), numeric_trunc(), numeric_uminus(), numeric_uplus(), pg_size_pretty_numeric(), and width_bucket_numeric().

#define PG_GETARG_NUMERIC_COPY ( n ) DatumGetNumericCopy(PG_GETARG_DATUM(n))

Definition at line 53 of file numeric.h.

#define PG_RETURN_NUMERIC ( x ) return NumericGetDatum(x)

Definition at line 54 of file numeric.h.

Referenced by cash_numeric(), float4_numeric(), float8_numeric(), int2_numeric(), int4_numeric(), int8_numeric(), int8_sum(), numeric(), numeric_abs(), numeric_add(), numeric_avg(), numeric_ceil(), numeric_div(), numeric_div_trunc(), numeric_exp(), numeric_fac(), numeric_floor(), numeric_in(), numeric_inc(), numeric_larger(), numeric_ln(), numeric_log(), numeric_mod(), numeric_mul(), numeric_poly_stddev_pop(), numeric_poly_stddev_samp(), numeric_poly_sum(), numeric_poly_var_pop(), numeric_poly_var_samp(), numeric_power(), numeric_recv(), numeric_round(), numeric_sign(), numeric_smaller(), numeric_sqrt(), numeric_stddev_pop(), numeric_stddev_samp(), numeric_sub(), numeric_sum(), numeric_trunc(), numeric_uminus(), numeric_uplus(), numeric_var_pop(), numeric_var_samp(), and pg_wal_lsn_diff().

Typedef Documentation

typedef struct NumericData* Numeric

Definition at line 43 of file numeric.h.

Function Documentation

bool numeric_is_nan ( Numeric num )

Definition at line 669 of file numeric.c.

References NUMERIC_IS_NAN.

Referenced by gbt_numeric_penalty().

 {
     return NUMERIC_IS_NAN(num);
 }

int32 numeric_maximum_size ( int32 typmod )

Definition at line 680 of file numeric.c.

References DEC_DIGITS, NUMERIC_HDRSZ, and VARHDRSZ.

Referenced by type_maximum_size().

 {
     int         precision;
     int         numeric_digits;
 
     if (typmod < (int32) (VARHDRSZ))
         return -1;
 
     /* precision (ie, max # of digits) is in upper bits of typmod */
     precision = ((typmod - VARHDRSZ) >> 16) & 0xffff;
 
     /*
      * This formula computes the maximum number of NumericDigits we could need
      * in order to store the specified number of decimal digits. Because the
      * weight is stored as a number of NumericDigits rather than a number of
      * decimal digits, it's possible that the first NumericDigit will contain
      * only a single decimal digit.  Thus, the first two decimal digits can
      * require two NumericDigits to store, but it isn't until we reach
      * DEC_DIGITS + 2 decimal digits that we potentially need a third
      * NumericDigit.
      */
     numeric_digits = (precision + 2 * (DEC_DIGITS - 1)) / DEC_DIGITS;
 
     /*
      * In most cases, the size of a numeric will be smaller than the value
      * computed below, because the varlena header will typically get toasted
      * down to a single byte before being stored on disk, and it may also be
      * possible to use a short numeric header.  But our job here is to compute
      * the worst case.
      */
     return NUMERIC_HDRSZ + (numeric_digits * sizeof(NumericDigit));
 }

char* numeric_normalize ( Numeric num )

Definition at line 746 of file numeric.c.

References get_str_from_var(), init_var_from_num(), NULL, NUMERIC_IS_NAN, and pstrdup().

Referenced by make_scalar_key().

 {
     NumericVar  x;
     char       *str;
     int         last;
 
     /*
      * Handle NaN
      */
     if (NUMERIC_IS_NAN(num))
         return pstrdup("NaN");
 
     init_var_from_num(num, &x);
 
     str = get_str_from_var(&x);
 
     /* If there's no decimal point, there's certainly nothing to remove. */
     if (strchr(str, '.') != NULL)
     {
         /*
          * Back up over trailing fractional zeroes.  Since there is a decimal
          * point, this loop will terminate safely.
          */
         last = strlen(str) - 1;
         while (str[last] == '0')
             last--;
 
         /* We want to get rid of the decimal point too, if it's now last. */
         if (str[last] == '.')
             last--;
 
         /* Delete whatever we backed up over. */
         str[last + 1] = '\0';
     }
 
     return str;
 }

char* numeric_out_sci	(	Numeric	num,
		int	scale
	)

Definition at line 719 of file numeric.c.

References get_str_from_var_sci(), init_var_from_num(), NUMERIC_IS_NAN, and pstrdup().

Referenced by int8_to_char(), and numeric_to_char().

 {
     NumericVar  x;
     char       *str;
 
     /*
      * Handle NaN
      */
     if (NUMERIC_IS_NAN(num))
         return pstrdup("NaN");
 
     init_var_from_num(num, &x);
 
     str = get_str_from_var_sci(&x, scale);
 
     return str;
 }

Macros

Typedefs

Functions

Macro Definition Documentation

Typedef Documentation

Function Documentation