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fixeddecimal.c
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fixeddecimal.c
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/*-------------------------------------------------------------------------
*
* fixeddecimal.c
* Fixed Decimal numeric type extension
*
* Copyright (c) 2015, PostgreSQL Global Development Group
*
* IDENTIFICATION
* fixeddecimal.c
*
* The research leading to these results has received funding from the European
* Union’s Seventh Framework Programme (FP7/2007-2015) under grant agreement
* n° 318633
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include <ctype.h>
#include <limits.h>
#include <math.h>
#include "funcapi.h"
#include "libpq/pqformat.h"
#include "access/hash.h"
#include "utils/array.h"
#include "utils/builtins.h"
#include "utils/int8.h"
#include "utils/numeric.h"
#define MAXINT8LEN 25
/*
* The scale which the number is actually stored.
* For example: 100 will allow 2 decimal places of precision
* This must always be a '1' followed by a number of '0's.
*/
#define FIXEDDECIMAL_MULTIPLIER 100LL
/*
* Number of decimal places to store.
* This number should be the number of decimal digits that it takes to
* represent FIXEDDECIMAL_MULTIPLIER - 1
*/
#define FIXEDDECIMAL_SCALE 2
/* Sanity checks */
#if FIXEDDECIMAL_SCALE == 0
#error "FIXEDDECIMAL_SCALE cannot be zero. Just use a BIGINT if that's what you really want"
#endif
#if FIXEDDECIMAL_SCALE > 19
#error "FIXEDDECIMAL_SCALE cannot be greater than 19"
#endif
/*
* This is bounded by the maximum and minimum values of int64.
* 9223372036854775807 is 19 decimal digits long, but we we can only represent
* this number / FIXEDDECIMAL_MULTIPLIER, so we must subtract
* FIXEDDECIMAL_SCALE
*/
#define FIXEDDECIMAL_MAX_PRECISION 19 - FIXEDDECIMAL_SCALE
/* Define this if your compiler has _builtin_add_overflow() */
/* #define HAVE_BUILTIN_OVERFLOW */
#ifndef HAVE_BUILTIN_OVERFLOW
#define SAMESIGN(a,b) (((a) < 0) == ((b) < 0))
#endif /* HAVE_BUILTIN_OVERFLOW */
/* Compiler must have a working 128 int type */
typedef __int128 int128;
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC;
#endif
PG_FUNCTION_INFO_V1(fixeddecimalin);
PG_FUNCTION_INFO_V1(fixeddecimaltypmodin);
PG_FUNCTION_INFO_V1(fixeddecimaltypmodout);
PG_FUNCTION_INFO_V1(fixeddecimalout);
PG_FUNCTION_INFO_V1(fixeddecimalrecv);
PG_FUNCTION_INFO_V1(fixeddecimalsend);
PG_FUNCTION_INFO_V1(fixeddecimaleq);
PG_FUNCTION_INFO_V1(fixeddecimalne);
PG_FUNCTION_INFO_V1(fixeddecimallt);
PG_FUNCTION_INFO_V1(fixeddecimalgt);
PG_FUNCTION_INFO_V1(fixeddecimalle);
PG_FUNCTION_INFO_V1(fixeddecimalge);
PG_FUNCTION_INFO_V1(fixeddecimal_cmp);
PG_FUNCTION_INFO_V1(fixeddecimal_int2_eq);
PG_FUNCTION_INFO_V1(fixeddecimal_int2_ne);
PG_FUNCTION_INFO_V1(fixeddecimal_int2_lt);
PG_FUNCTION_INFO_V1(fixeddecimal_int2_gt);
PG_FUNCTION_INFO_V1(fixeddecimal_int2_le);
PG_FUNCTION_INFO_V1(fixeddecimal_int2_ge);
PG_FUNCTION_INFO_V1(fixeddecimal_int2_cmp);
PG_FUNCTION_INFO_V1(int2_fixeddecimal_eq);
PG_FUNCTION_INFO_V1(int2_fixeddecimal_ne);
PG_FUNCTION_INFO_V1(int2_fixeddecimal_lt);
PG_FUNCTION_INFO_V1(int2_fixeddecimal_gt);
PG_FUNCTION_INFO_V1(int2_fixeddecimal_le);
PG_FUNCTION_INFO_V1(int2_fixeddecimal_ge);
PG_FUNCTION_INFO_V1(int2_fixeddecimal_cmp);
PG_FUNCTION_INFO_V1(fixeddecimal_int4_eq);
PG_FUNCTION_INFO_V1(fixeddecimal_int4_ne);
PG_FUNCTION_INFO_V1(fixeddecimal_int4_lt);
PG_FUNCTION_INFO_V1(fixeddecimal_int4_gt);
PG_FUNCTION_INFO_V1(fixeddecimal_int4_le);
PG_FUNCTION_INFO_V1(fixeddecimal_int4_ge);
PG_FUNCTION_INFO_V1(fixeddecimal_int4_cmp);
PG_FUNCTION_INFO_V1(int4_fixeddecimal_eq);
PG_FUNCTION_INFO_V1(int4_fixeddecimal_ne);
PG_FUNCTION_INFO_V1(int4_fixeddecimal_lt);
PG_FUNCTION_INFO_V1(int4_fixeddecimal_gt);
PG_FUNCTION_INFO_V1(int4_fixeddecimal_le);
PG_FUNCTION_INFO_V1(int4_fixeddecimal_ge);
PG_FUNCTION_INFO_V1(int4_fixeddecimal_cmp);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric_cmp);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric_eq);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric_ne);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric_lt);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric_gt);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric_le);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric_ge);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal_cmp);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal_eq);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal_ne);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal_lt);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal_gt);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal_le);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal_ge);
PG_FUNCTION_INFO_V1(fixeddecimal_hash);
PG_FUNCTION_INFO_V1(fixeddecimalum);
PG_FUNCTION_INFO_V1(fixeddecimalup);
PG_FUNCTION_INFO_V1(fixeddecimalpl);
PG_FUNCTION_INFO_V1(fixeddecimalmi);
PG_FUNCTION_INFO_V1(fixeddecimalmul);
PG_FUNCTION_INFO_V1(fixeddecimaldiv);
PG_FUNCTION_INFO_V1(fixeddecimalabs);
PG_FUNCTION_INFO_V1(fixeddecimallarger);
PG_FUNCTION_INFO_V1(fixeddecimalsmaller);
PG_FUNCTION_INFO_V1(fixeddecimalint4pl);
PG_FUNCTION_INFO_V1(fixeddecimalint4mi);
PG_FUNCTION_INFO_V1(fixeddecimalint4mul);
PG_FUNCTION_INFO_V1(fixeddecimalint4div);
PG_FUNCTION_INFO_V1(fixeddecimal);
PG_FUNCTION_INFO_V1(int4fixeddecimalpl);
PG_FUNCTION_INFO_V1(int4fixeddecimalmi);
PG_FUNCTION_INFO_V1(int4fixeddecimalmul);
PG_FUNCTION_INFO_V1(int4fixeddecimaldiv);
PG_FUNCTION_INFO_V1(fixeddecimalint2pl);
PG_FUNCTION_INFO_V1(fixeddecimalint2mi);
PG_FUNCTION_INFO_V1(fixeddecimalint2mul);
PG_FUNCTION_INFO_V1(fixeddecimalint2div);
PG_FUNCTION_INFO_V1(int2fixeddecimalpl);
PG_FUNCTION_INFO_V1(int2fixeddecimalmi);
PG_FUNCTION_INFO_V1(int2fixeddecimalmul);
PG_FUNCTION_INFO_V1(int2fixeddecimaldiv);
PG_FUNCTION_INFO_V1(int4fixeddecimal);
PG_FUNCTION_INFO_V1(fixeddecimalint4);
PG_FUNCTION_INFO_V1(int2fixeddecimal);
PG_FUNCTION_INFO_V1(fixeddecimalint2);
PG_FUNCTION_INFO_V1(fixeddecimaltod);
PG_FUNCTION_INFO_V1(dtofixeddecimal);
PG_FUNCTION_INFO_V1(fixeddecimaltof);
PG_FUNCTION_INFO_V1(ftofixeddecimal);
PG_FUNCTION_INFO_V1(numeric_fixeddecimal);
PG_FUNCTION_INFO_V1(fixeddecimal_numeric);
PG_FUNCTION_INFO_V1(fixeddecimal_avg_accum);
PG_FUNCTION_INFO_V1(fixeddecimal_avg);
PG_FUNCTION_INFO_V1(fixeddecimal_sum);
PG_FUNCTION_INFO_V1(fixeddecimalaggstatecombine);
PG_FUNCTION_INFO_V1(fixeddecimalaggstateserialize);
PG_FUNCTION_INFO_V1(fixeddecimalaggstatedeserialize);
PG_FUNCTION_INFO_V1(fixeddecimalaggstatein);
PG_FUNCTION_INFO_V1(fixeddecimalaggstateout);
PG_FUNCTION_INFO_V1(fixeddecimalaggstatesend);
PG_FUNCTION_INFO_V1(fixeddecimalaggstaterecv);
/* Aggregate Internal State */
typedef struct FixedDecimalAggState
{
MemoryContext agg_context; /* context we're calculating in */
int64 N; /* count of processed numbers */
int64 sumX; /* sum of processed numbers */
} FixedDecimalAggState;
static char *pg_int64tostr(char *str, int64 value);
static char *pg_int64tostr_zeropad(char *str, int64 value, int64 padding);
static void apply_typmod(int64 value, int32 typmod, int precision, int scale);
static int64 scanfixeddecimal(const char *str, int *precision, int *scale);
static FixedDecimalAggState *makeFixedDecimalAggState(FunctionCallInfo fcinfo);
static void fixeddecimal_accum(FixedDecimalAggState *state, int64 newval);
/***********************************************************************
**
** Routines for fixeddecimal
**
***********************************************************************/
/*----------------------------------------------------------
* Formatting and conversion routines.
*---------------------------------------------------------*/
/*
* pg_int64tostr
* Converts 'value' into a decimal string representation of the number.
*
* Caller must ensure that 'str' points to enough memory to hold the result
* (at least 21 bytes, counting a leading sign and trailing NUL).
* Return value is a pointer to the new NUL terminated end of string.
*/
static char *
pg_int64tostr(char *str, int64 value)
{
char *start;
char *end;
/*
* Handle negative numbers in a special way. We can't just append a '-'
* prefix and reverse the sign as on two's complement machines negative
* numbers can be 1 further from 0 than positive numbers, we do it this way
* so we properly handle the smallest possible value.
*/
if (value < 0)
{
*str++ = '-';
/* mark the position we must reverse the string from. */
start = str;
/* Compute the result string backwards. */
do
{
int64 remainder;
int64 oldval = value;
value /= 10;
remainder = oldval - value * 10;
*str++ = '0' + -remainder;
} while (value != 0);
}
else
{
/* mark the position we must reverse the string from. */
start = str;
do
{
int64 remainder;
int64 oldval = value;
value /= 10;
remainder = oldval - value * 10;
*str++ = '0' + remainder;
} while (value != 0);
}
/* Add trailing NUL byte, and back up 'str' to the last character. */
end = str;
*str-- = '\0';
/* Reverse string. */
while (start < str)
{
char swap = *start;
*start++ = *str;
*str-- = swap;
}
return end;
}
/*
* pg_int64tostr_zeropad
* Converts 'value' into a decimal string representation of the number.
* 'padding' specifies the minimum width of the number. Any extra space
* is filled up by prefixing the number with zeros. The return value is a
* pointer to the NUL terminated end of the string.
*
* Note: Callers should ensure that 'padding' is above zero.
* Note: This function is optimized for the case where the number is not too
* big to fit inside of the specified padding.
* Note: Caller must ensure that 'str' points to enough memory to hold the
result (at least 21 bytes, counting a leading sign and trailing NUL,
or padding + 1 bytes, whichever is larger).
*/
static char *
pg_int64tostr_zeropad(char *str, int64 value, int64 padding)
{
char *start = str;
char *end = &str[padding];
int64 num = value;
Assert(padding > 0);
/*
* Handle negative numbers in a special way. We can't just append a '-'
* prefix and reverse the sign as on two's complement machines negative
* numbers can be 1 further from 0 than positive numbers, we do it this way
* so we properly handle the smallest possible value.
*/
if (num < 0)
{
*start++ = '-';
padding--;
/*
* Build the number starting at the end. Here remainder will be a
* negative number, we must reverse this sign on this before adding
* '0' in order to get the correct ASCII digit
*/
while (padding--)
{
int64 remainder;
int64 oldval = num;
num /= 10;
remainder = oldval - num * 10;
start[padding] = '0' + -remainder;
}
}
else
{
/* build the number starting at the end */
while (padding--)
{
int64 remainder;
int64 oldval = num;
num /= 10;
remainder = oldval - num * 10;
start[padding] = '0' + remainder;
}
}
/*
* If padding was not high enough to fit this number then num won't have
* been divided down to zero. We'd better have another go, this time we
* know there won't be any zero padding required so we can just enlist the
* help of pg_int64tostr()
*/
if (num != 0)
return pg_int64tostr(str, value);
*end = '\0';
return end;
}
/*
* fixeddecimal2str
* Prints the fixeddecimal 'val' to buffer as a string.
* Returns a pointer to the end of the written string.
*/
static char *
fixeddecimal2str(int64 val, char *buffer)
{
char *ptr = buffer;
int64 integralpart = val / FIXEDDECIMAL_MULTIPLIER;
int64 fractionalpart = val % FIXEDDECIMAL_MULTIPLIER;
if (val < 0)
{
fractionalpart = -fractionalpart;
/*
* Handle special case for negative numbers where the intergral part
* is zero. pg_int64tostr() won't prefix with "-0" in this case, so
* we'll do it manually
*/
if (integralpart == 0)
*ptr++ = '-';
}
ptr = pg_int64tostr(ptr, integralpart);
*ptr++ = '.';
ptr = pg_int64tostr_zeropad(ptr, fractionalpart, FIXEDDECIMAL_SCALE);
return ptr;
}
/*
* scanfixeddecimal --- try to parse a string into a fixeddecimal.
*/
static int64
scanfixeddecimal(const char *str, int *precision, int *scale)
{
const char *ptr = str;
int64 integralpart = 0;
int64 fractionalpart = 0;
bool negative;
int vprecision = 0;
int vscale = 0;
/*
* Do our own scan, rather than relying on sscanf which might be broken
* for long long.
*/
/* skip leading spaces */
while (isspace((unsigned char) *ptr))
ptr++;
/* handle sign */
if (*ptr == '-')
{
negative = true;
ptr++;
while (isdigit((unsigned char) *ptr))
{
int64 tmp = integralpart * 10 - (*ptr++ - '0');
vprecision++;
if ((tmp / 10) != integralpart) /* underflow? */
{
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
}
integralpart = tmp;
}
}
else
{
negative = false;
if (*ptr == '+')
ptr++;
while (isdigit((unsigned char) *ptr))
{
int64 tmp = integralpart * 10 + (*ptr++ - '0');
vprecision++;
if ((tmp / 10) != integralpart) /* overflow? */
{
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
}
integralpart = tmp;
}
}
/* process the part after the decimal point */
if (*ptr == '.')
{
int64 multiplier = FIXEDDECIMAL_MULTIPLIER;
ptr++;
while (isdigit((unsigned char) *ptr) && multiplier > 1)
{
multiplier /= 10;
fractionalpart += (*ptr++ - '0') * multiplier;
vscale++;
}
/*
* Eat into any excess precision digits.
* XXX These are ignored, should we error instead?
*/
while (isdigit((unsigned char) *ptr))
ptr++, vscale++;
}
/* consume any remaining space chars */
while (isspace((unsigned char) *ptr))
ptr++;
if (*ptr != '\0')
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal", str)));
*precision = vprecision;
*scale = vscale;
if (negative)
{
int64 value;
#ifdef HAVE_BUILTIN_OVERFLOW
int64 multiplier = FIXEDDECIMAL_MULTIPLIER;
if (__builtin_mul_overflow(integralpart, multiplier, &value))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
if (__builtin_sub_overflow(value, fractionalpart, &value))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
return value;
#else
value = integralpart * FIXEDDECIMAL_MULTIPLIER;
if (value != 0 && (!SAMESIGN(value, integralpart) ||
!SAMESIGN(value - fractionalpart, value) ||
!SAMESIGN(value - fractionalpart, value)))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
return value - fractionalpart;
#endif /* HAVE_BUILTIN_OVERFLOW */
}
else
{
int64 value;
#ifdef HAVE_BUILTIN_OVERFLOW
if (__builtin_mul_overflow(integralpart, FIXEDDECIMAL_MULTIPLIER, &value))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
if (__builtin_add_overflow(value, fractionalpart, &value))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
return value;
#else
value = integralpart * FIXEDDECIMAL_MULTIPLIER;
if (value != 0 && (!SAMESIGN(value, integralpart) ||
!SAMESIGN(value - fractionalpart, value) ||
!SAMESIGN(value + fractionalpart, value)))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for type fixeddecimal",
str)));
return value + fractionalpart;
#endif /* HAVE_BUILTIN_OVERFLOW */
}
}
/*
* fixeddecimalin()
*/
Datum
fixeddecimalin(PG_FUNCTION_ARGS)
{
char *str = PG_GETARG_CSTRING(0);
int32 typmod = PG_GETARG_INT32(2);
int precision;
int scale;
int64 result = scanfixeddecimal(str, &precision, &scale);
apply_typmod(result, typmod, precision, scale);
PG_RETURN_INT64(result);
}
static void
apply_typmod(int64 value, int32 typmod, int precision, int scale)
{
int precisionlimit;
int scalelimit;
int maxdigits;
/* Do nothing if we have a default typmod (-1) */
if (typmod < (int32) (VARHDRSZ))
return;
typmod -= VARHDRSZ;
precisionlimit = (typmod >> 16) & 0xffff;
scalelimit = typmod & 0xffff;
maxdigits = precisionlimit - scalelimit;
if (scale > scalelimit)
if (scale != FIXEDDECIMAL_SCALE)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("FIXEDDECIMAL scale must be %d",
FIXEDDECIMAL_SCALE)));
if (precision > maxdigits)
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("FIXEDDECIMAL field overflow"),
errdetail("A field with precision %d, scale %d must round to an absolute value less than %s%d.",
precision, scale,
/* Display 10^0 as 1 */
maxdigits ? "10^" : "",
maxdigits ? maxdigits : 1
)));
}
Datum
fixeddecimaltypmodin(PG_FUNCTION_ARGS)
{
ArrayType *ta = PG_GETARG_ARRAYTYPE_P(0);
int32 *tl;
int n;
int32 typmod;
tl = ArrayGetIntegerTypmods(ta, &n);
if (n == 2)
{
/*
* we demand that the precision is at least the scale, since later we
* enforce that the scale is exactly FIXEDDECIMAL_SCALE
*/
if (tl[0] < FIXEDDECIMAL_SCALE || tl[0] > FIXEDDECIMAL_MAX_PRECISION)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("FIXEDDECIMAL precision %d must be between %d and %d",
tl[0], FIXEDDECIMAL_SCALE, FIXEDDECIMAL_MAX_PRECISION)));
if (tl[1] != FIXEDDECIMAL_SCALE)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("FIXEDDECIMAL scale must be %d",
FIXEDDECIMAL_SCALE)));
typmod = ((tl[0] << 16) | tl[1]) + VARHDRSZ;
}
else if (n == 1)
{
if (tl[0] < FIXEDDECIMAL_SCALE || tl[0] > FIXEDDECIMAL_MAX_PRECISION)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("FIXEDDECIMAL precision %d must be between %d and %d",
tl[0], FIXEDDECIMAL_SCALE, FIXEDDECIMAL_MAX_PRECISION)));
/* scale defaults to FIXEDDECIMAL_SCALE */
typmod = ((tl[0] << 16) | FIXEDDECIMAL_SCALE) + VARHDRSZ;
}
else
{
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("invalid FIXEDDECIMAL type modifier")));
typmod = 0; /* keep compiler quiet */
}
PG_RETURN_INT32(typmod);
}
Datum
fixeddecimaltypmodout(PG_FUNCTION_ARGS)
{
int32 typmod = PG_GETARG_INT32(0);
char *res = (char *) palloc(64);
if (typmod >= 0)
snprintf(res, 64, "(%d,%d)",
((typmod - VARHDRSZ) >> 16) & 0xffff,
(typmod - VARHDRSZ) & 0xffff);
else
*res = '\0';
PG_RETURN_CSTRING(res);
}
/*
* fixeddecimalout()
*/
Datum
fixeddecimalout(PG_FUNCTION_ARGS)
{
int64 val = PG_GETARG_INT64(0);
char buf[MAXINT8LEN + 1];
char *end = fixeddecimal2str(val, buf);
PG_RETURN_CSTRING(pnstrdup(buf, end - buf));
}
/*
* fixeddecimalrecv - converts external binary format to int8
*/
Datum
fixeddecimalrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_INT64(pq_getmsgint64(buf));
}
/*
* fixeddecimalsend - converts int8 to binary format
*/
Datum
fixeddecimalsend(PG_FUNCTION_ARGS)
{
int64 arg1 = PG_GETARG_INT64(0);
StringInfoData buf;
pq_begintypsend(&buf);
pq_sendint64(&buf, arg1);
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
/*----------------------------------------------------------
* Relational operators for fixeddecimals, including cross-data-type comparisons.
*---------------------------------------------------------*/
Datum
fixeddecimaleq(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 == val2);
}
Datum
fixeddecimalne(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 != val2);
}
Datum
fixeddecimallt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 < val2);
}
Datum
fixeddecimalgt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 > val2);
}
Datum
fixeddecimalle(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 <= val2);
}
Datum
fixeddecimalge(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 >= val2);
}
Datum
fixeddecimal_cmp(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT64(1);
if (val1 == val2)
PG_RETURN_INT32(0);
else if (val1 < val2)
PG_RETURN_INT32(-1);
else
PG_RETURN_INT32(1);
}
/* int2, fixeddecimal */
Datum
fixeddecimal_int2_eq(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT16(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 == val2);
}
Datum
fixeddecimal_int2_ne(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT16(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 != val2);
}
Datum
fixeddecimal_int2_lt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT16(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 < val2);
}
Datum
fixeddecimal_int2_gt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT16(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 > val2);
}
Datum
fixeddecimal_int2_le(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT16(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 <= val2);
}
Datum
fixeddecimal_int2_ge(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT16(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 >= val2);
}
Datum
fixeddecimal_int2_cmp(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT16(1) * FIXEDDECIMAL_MULTIPLIER;
if (val1 == val2)
PG_RETURN_INT32(0);
else if (val1 < val2)
PG_RETURN_INT32(-1);
else
PG_RETURN_INT32(1);
}
Datum
int2_fixeddecimal_eq(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT16(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 == val2);
}
Datum
int2_fixeddecimal_ne(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT16(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 != val2);
}
Datum
int2_fixeddecimal_lt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT16(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 < val2);
}
Datum
int2_fixeddecimal_gt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT16(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 > val2);
}
Datum
int2_fixeddecimal_le(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT16(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 <= val2);
}
Datum
int2_fixeddecimal_ge(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT16(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 >= val2);
}
Datum
int2_fixeddecimal_cmp(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT16(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
if (val1 == val2)
PG_RETURN_INT32(0);
else if (val1 < val2)
PG_RETURN_INT32(-1);
else
PG_RETURN_INT32(1);
}
/* fixeddecimal, int4 */
Datum
fixeddecimal_int4_eq(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT32(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 == val2);
}
Datum
fixeddecimal_int4_ne(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT32(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 != val2);
}
Datum
fixeddecimal_int4_lt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT32(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 < val2);
}
Datum
fixeddecimal_int4_gt(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT32(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 > val2);
}
Datum
fixeddecimal_int4_le(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT32(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 <= val2);
}
Datum
fixeddecimal_int4_ge(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT32(1) * FIXEDDECIMAL_MULTIPLIER;
PG_RETURN_BOOL(val1 >= val2);
}
Datum
fixeddecimal_int4_cmp(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT64(0);
int64 val2 = PG_GETARG_INT32(1) * FIXEDDECIMAL_MULTIPLIER;
if (val1 == val2)
PG_RETURN_INT32(0);
else if (val1 < val2)
PG_RETURN_INT32(-1);
else
PG_RETURN_INT32(1);
}
Datum
int4_fixeddecimal_eq(PG_FUNCTION_ARGS)
{
int64 val1 = PG_GETARG_INT32(0) * FIXEDDECIMAL_MULTIPLIER;
int64 val2 = PG_GETARG_INT64(1);
PG_RETURN_BOOL(val1 == val2);
}