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Change return type of EXTRACT to numeric

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The previous implementation of EXTRACT mapped internally to
date_part(), which returned type double precision (since it was
implemented long before the numeric type existed).  This can lead to
imprecise output in some cases, so returning numeric would be
preferrable.  Changing the return type of an existing function is a
bit risky, so instead we do the following:  We implement a new set of
functions, which are now called "extract", in parallel to the existing
date_part functions.  They work the same way internally but use
numeric instead of float8.  The EXTRACT construct is now mapped by the
parser to these new extract functions.  That way, dumps of views
etc. from old versions (which would use date_part) continue to work
unchanged, but new uses will map to the new extract functions.

Additionally, the reverse compilation of EXTRACT now reproduces the
original syntax, using the new mechanism introduced in
40c24bfef92530bd846e111c1742c2a54441c62c.

The following minor changes of behavior result from the new
implementation:

- The column name from an isolated EXTRACT call is now "extract"
  instead of "date_part".

- Extract from date now rejects inappropriate field names such as
  HOUR.  It was previously mapped internally to extract from
  timestamp, so it would silently accept everything appropriate for
  timestamp.

- Return values when extracting fields with possibly fractional
  values, such as second and epoch, now have the full scale that the
  value has internally (so, for example, '1.000000' instead of just
  '1').

Reported-by: Petr Fedorov <petr.fedorov@phystech.edu>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/42b73d2d-da12-ba9f-570a-420e0cce19d9@phystech.edu
This commit is contained in:
Peter Eisentraut 2021-04-06 07:17:13 +02:00
parent f5d94e405e
commit a2da77cdb4
23 changed files with 1333 additions and 499 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
doc/src/sgml/func.sgml
View File

@ -8872,7 +8872,7 @@ SELECT regexp_match('abc01234xyz', '(?:(.*?)(\d+)(.*)){1,1}');
<primary>extract</primary>
</indexterm>
<function>extract</function> ( <parameter>field</parameter> <literal>from</literal> <type>timestamp</type> )
<returnvalue>double precision</returnvalue>
<returnvalue>numeric</returnvalue>
</para>
<para>
Get timestamp subfield; see <xref linkend="functions-datetime-extract"/>
@ -8886,7 +8886,7 @@ SELECT regexp_match('abc01234xyz', '(?:(.*?)(\d+)(.*)){1,1}');
<row>
<entry role="func_table_entry"><para role="func_signature">
<function>extract</function> ( <parameter>field</parameter> <literal>from</literal> <type>interval</type> )
<returnvalue>double precision</returnvalue>
<returnvalue>numeric</returnvalue>
</para>
<para>
Get interval subfield; see <xref linkend="functions-datetime-extract"/>
@ -9401,7 +9401,7 @@ EXTRACT(<replaceable>field</replaceable> FROM <replaceable>source</replaceable>)
well.) <replaceable>field</replaceable> is an identifier or
string that selects what field to extract from the source value.
The <function>extract</function> function returns values of type
<type>double precision</type>.
<type>numeric</type>.
The following are valid field names:
<!-- alphabetical -->
@ -9825,6 +9825,10 @@ date_part('<replaceable>field</replaceable>', <replaceable>source</replaceable>)
be a string value, not a name. The valid field names for
<function>date_part</function> are the same as for
<function>extract</function>.
For historical reasons, the <function>date_part</function> function
returns values of type <type>double precision</type>. This can result in
a loss of precision in certain uses. Using <function>extract</function>
is recommended instead.
</para>
<screen>

2
src/backend/parser/gram.y
View File

@ -14020,7 +14020,7 @@ func_expr_common_subexpr:
{ $$ = makeTypeCast($3, $5, @1); }
| EXTRACT '(' extract_list ')'
{
$$ = (Node *) makeFuncCall(SystemFuncName("date_part"),
$$ = (Node *) makeFuncCall(SystemFuncName("extract"),
$3,
COERCE_SQL_SYNTAX,
@1);

308
src/backend/utils/adt/date.c
View File

@ -31,6 +31,7 @@
#include "utils/builtins.h"
#include "utils/date.h"
#include "utils/datetime.h"
#include "utils/numeric.h"
#include "utils/sortsupport.h"
/*
@ -1063,6 +1064,182 @@ in_range_date_interval(PG_FUNCTION_ARGS)
}
/* extract_date()
* Extract specified field from date type.
*/
Datum
extract_date(PG_FUNCTION_ARGS)
{
text *units = PG_GETARG_TEXT_PP(0);
DateADT date = PG_GETARG_DATEADT(1);
int64 intresult;
int type,
val;
char *lowunits;
int year,
mon,
mday;
lowunits = downcase_truncate_identifier(VARDATA_ANY(units),
VARSIZE_ANY_EXHDR(units),
false);
type = DecodeUnits(0, lowunits, &val);
if (type == UNKNOWN_FIELD)
type = DecodeSpecial(0, lowunits, &val);
if (DATE_NOT_FINITE(date) && (type == UNITS || type == RESERV))
{
switch (val)
{
/* Oscillating units */
case DTK_DAY:
case DTK_MONTH:
case DTK_QUARTER:
case DTK_WEEK:
case DTK_DOW:
case DTK_ISODOW:
case DTK_DOY:
PG_RETURN_NULL();
break;
/* Monotonically-increasing units */
case DTK_YEAR:
case DTK_DECADE:
case DTK_CENTURY:
case DTK_MILLENNIUM:
case DTK_JULIAN:
case DTK_ISOYEAR:
case DTK_EPOCH:
if (DATE_IS_NOBEGIN(date))
PG_RETURN_NUMERIC(DatumGetNumeric(DirectFunctionCall3(numeric_in,
CStringGetDatum("-Infinity"),
ObjectIdGetDatum(InvalidOid),
Int32GetDatum(-1))));
else
PG_RETURN_NUMERIC(DatumGetNumeric(DirectFunctionCall3(numeric_in,
CStringGetDatum("Infinity"),
ObjectIdGetDatum(InvalidOid),
Int32GetDatum(-1))));
default:
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("date units \"%s\" not supported",
lowunits)));
}
}
else if (type == UNITS)
{
j2date(date + POSTGRES_EPOCH_JDATE, &year, &mon, &mday);
switch (val)
{
case DTK_DAY:
intresult = mday;
break;
case DTK_MONTH:
intresult = mon;
break;
case DTK_QUARTER:
intresult = (mon - 1) / 3 + 1;
break;
case DTK_WEEK:
intresult = date2isoweek(year, mon, mday);
break;
case DTK_YEAR:
if (year > 0)
intresult = year;
else
/* there is no year 0, just 1 BC and 1 AD */
intresult = year - 1;
break;
case DTK_DECADE:
/* see comments in timestamp_part */
if (year >= 0)
intresult = year / 10;
else
intresult = -((8 - (year - 1)) / 10);
break;
case DTK_CENTURY:
/* see comments in timestamp_part */
if (year > 0)
intresult = (year + 99) / 100;
else
intresult = -((99 - (year - 1)) / 100);
break;
case DTK_MILLENNIUM:
/* see comments in timestamp_part */
if (year > 0)
intresult = (year + 999) / 1000;
else
intresult = -((999 - (year - 1)) / 1000);
break;
case DTK_JULIAN:
intresult = date + POSTGRES_EPOCH_JDATE;
break;
case DTK_ISOYEAR:
intresult = date2isoyear(year, mon, mday);
/* Adjust BC years */
if (intresult <= 0)
intresult -= 1;
break;
case DTK_DOW:
case DTK_ISODOW:
intresult = j2day(date + POSTGRES_EPOCH_JDATE);
if (val == DTK_ISODOW && intresult == 0)
intresult = 7;
break;
case DTK_DOY:
intresult = date2j(year, mon, mday) - date2j(year, 1, 1) + 1;
break;
default:
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("date units \"%s\" not supported",
lowunits)));
intresult = 0;
}
}
else if (type == RESERV)
{
switch (val)
{
case DTK_EPOCH:
intresult = ((int64) date + POSTGRES_EPOCH_JDATE - UNIX_EPOCH_JDATE) * SECS_PER_DAY;
break;
default:
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("date units \"%s\" not supported",
lowunits)));
intresult = 0;
}
}
else
{
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("date units \"%s\" not recognized", lowunits)));
intresult = 0;
}
PG_RETURN_NUMERIC(int64_to_numeric(intresult));
}
/* Add an interval to a date, giving a new date.
* Must handle both positive and negative intervals.
*
@ -1949,15 +2126,15 @@ in_range_time_interval(PG_FUNCTION_ARGS)
}
/* time_part()
/* time_part() and extract_time()
* Extract specified field from time type.
*/
Datum
time_part(PG_FUNCTION_ARGS)
static Datum
time_part_common(PG_FUNCTION_ARGS, bool retnumeric)
{
text *units = PG_GETARG_TEXT_PP(0);
TimeADT time = PG_GETARG_TIMEADT(1);
float8 result;
int64 intresult;
int type,
val;
char *lowunits;
@ -1981,23 +2158,37 @@ time_part(PG_FUNCTION_ARGS)
switch (val)
{
case DTK_MICROSEC:
result = tm->tm_sec * 1000000.0 + fsec;
intresult = tm->tm_sec * 1000000 + fsec;
break;
case DTK_MILLISEC:
result = tm->tm_sec * 1000.0 + fsec / 1000.0;
if (retnumeric)
/*---
* tm->tm_sec * 1000 + fsec / 1000
* = (tm->tm_sec * 1'000'000 + fsec) / 1000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 3));
else
PG_RETURN_FLOAT8(tm->tm_sec * 1000.0 + fsec / 1000.0);
break;
case DTK_SECOND:
result = tm->tm_sec + fsec / 1000000.0;
if (retnumeric)
/*---
* tm->tm_sec + fsec / 1'000'000
* = (tm->tm_sec * 1'000'000 + fsec) / 1'000'000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 6));
else
PG_RETURN_FLOAT8(tm->tm_sec + fsec / 1000000.0);
break;
case DTK_MINUTE:
result = tm->tm_min;
intresult = tm->tm_min;
break;
case DTK_HOUR:
result = tm->tm_hour;
intresult = tm->tm_hour;
break;
case DTK_TZ:
@ -2016,12 +2207,15 @@ time_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("\"time\" units \"%s\" not recognized",
lowunits)));
result = 0;
intresult = 0;
}
}
else if (type == RESERV && val == DTK_EPOCH)
{
result = time / 1000000.0;
if (retnumeric)
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(time, 6));
else
PG_RETURN_FLOAT8(time / 1000000.0);
}
else
{
@ -2029,10 +2223,25 @@ time_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("\"time\" units \"%s\" not recognized",
lowunits)));
result = 0;
intresult = 0;
}
PG_RETURN_FLOAT8(result);
if (retnumeric)
PG_RETURN_NUMERIC(int64_to_numeric(intresult));
else
PG_RETURN_FLOAT8(intresult);
}
Datum
time_part(PG_FUNCTION_ARGS)
{
return time_part_common(fcinfo, false);
}
Datum
extract_time(PG_FUNCTION_ARGS)
{
return time_part_common(fcinfo, true);
}
@ -2686,15 +2895,15 @@ datetimetz_timestamptz(PG_FUNCTION_ARGS)
}
/* timetz_part()
/* timetz_part() and extract_timetz()
* Extract specified field from time type.
*/
Datum
timetz_part(PG_FUNCTION_ARGS)
static Datum
timetz_part_common(PG_FUNCTION_ARGS, bool retnumeric)
{
text *units = PG_GETARG_TEXT_PP(0);
TimeTzADT *time = PG_GETARG_TIMETZADT_P(1);
float8 result;
int64 intresult;
int type,
val;
char *lowunits;
@ -2709,7 +2918,6 @@ timetz_part(PG_FUNCTION_ARGS)
if (type == UNITS)
{
double dummy;
int tz;
fsec_t fsec;
struct pg_tm tt,
@ -2720,38 +2928,49 @@ timetz_part(PG_FUNCTION_ARGS)
switch (val)
{
case DTK_TZ:
result = -tz;
intresult = -tz;
break;
case DTK_TZ_MINUTE:
result = -tz;
result /= SECS_PER_MINUTE;
FMODULO(result, dummy, (double) MINS_PER_HOUR);
intresult = (-tz / SECS_PER_MINUTE) % MINS_PER_HOUR;
break;
case DTK_TZ_HOUR:
dummy = -tz;
FMODULO(dummy, result, (double) SECS_PER_HOUR);
intresult = -tz / SECS_PER_HOUR;
break;
case DTK_MICROSEC:
result = tm->tm_sec * 1000000.0 + fsec;
intresult = tm->tm_sec * 1000000 + fsec;
break;
case DTK_MILLISEC:
result = tm->tm_sec * 1000.0 + fsec / 1000.0;
if (retnumeric)
/*---
* tm->tm_sec * 1000 + fsec / 1000
* = (tm->tm_sec * 1'000'000 + fsec) / 1000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 3));
else
PG_RETURN_FLOAT8(tm->tm_sec * 1000.0 + fsec / 1000.0);
break;
case DTK_SECOND:
result = tm->tm_sec + fsec / 1000000.0;
if (retnumeric)
/*---
* tm->tm_sec + fsec / 1'000'000
* = (tm->tm_sec * 1'000'000 + fsec) / 1'000'000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 6));
else
PG_RETURN_FLOAT8(tm->tm_sec + fsec / 1000000.0);
break;
case DTK_MINUTE:
result = tm->tm_min;
intresult = tm->tm_min;
break;
case DTK_HOUR:
result = tm->tm_hour;
intresult = tm->tm_hour;
break;
case DTK_DAY:
@ -2766,12 +2985,19 @@ timetz_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("\"time with time zone\" units \"%s\" not recognized",
lowunits)));
result = 0;
intresult = 0;
}
}
else if (type == RESERV && val == DTK_EPOCH)
{
result = time->time / 1000000.0 + time->zone;
if (retnumeric)
/*---
* time->time / 1'000'000 + time->zone
* = (time->time + time->zone * 1'000'000) / 1'000'000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(time->time + time->zone * 1000000LL, 6));
else
PG_RETURN_FLOAT8(time->time / 1000000.0 + time->zone);
}
else
{
@ -2779,10 +3005,26 @@ timetz_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("\"time with time zone\" units \"%s\" not recognized",
lowunits)));
result = 0;
intresult = 0;
}
PG_RETURN_FLOAT8(result);
if (retnumeric)
PG_RETURN_NUMERIC(int64_to_numeric(intresult));
else
PG_RETURN_FLOAT8(intresult);
}
Datum
timetz_part(PG_FUNCTION_ARGS)
{
return timetz_part_common(fcinfo, false);
}
Datum
extract_timetz(PG_FUNCTION_ARGS)
{
return timetz_part_common(fcinfo, true);
}
/* timetz_zone()

61
src/backend/utils/adt/numeric.c
View File

@ -4092,6 +4092,67 @@ int64_to_numeric(int64 val)
return res;
}
/*
* Convert val1/(10**val2) to numeric. This is much faster than normal
* numeric division.
*/
Numeric
int64_div_fast_to_numeric(int64 val1, int log10val2)
{
Numeric res;
NumericVar result;
int64 saved_val1 = val1;
int w;
int m;
/* how much to decrease the weight by */
w = log10val2 / DEC_DIGITS;
/* how much is left */
m = log10val2 % DEC_DIGITS;
/*
* If there is anything left, multiply the dividend by what's left, then
* shift the weight by one more.
*/
if (m > 0)
{
static int pow10[] = {1, 10, 100, 1000};
StaticAssertStmt(lengthof(pow10) == DEC_DIGITS, "mismatch with DEC_DIGITS");
if (unlikely(pg_mul_s64_overflow(val1, pow10[DEC_DIGITS - m], &val1)))
{
/*
* If it doesn't fit, do the whole computation in numeric the slow
* way. Note that va1l may have been overwritten, so use
* saved_val1 instead.
*/
int val2 = 1;
for (int i = 0; i < log10val2; i++)
val2 *= 10;
res = numeric_div_opt_error(int64_to_numeric(saved_val1), int64_to_numeric(val2), NULL);
res = DatumGetNumeric(DirectFunctionCall2(numeric_round,
NumericGetDatum(res),
Int32GetDatum(log10val2)));
return res;
}
w++;
}
init_var(&result);
int64_to_numericvar(val1, &result);
result.weight -= w;
result.dscale += w * DEC_DIGITS - (DEC_DIGITS - m);
res = make_result(&result);
free_var(&result);
return res;
}
Datum
int4_numeric(PG_FUNCTION_ARGS)
{

21
src/backend/utils/adt/ruleutils.c
View File

@ -9782,6 +9782,27 @@ get_func_sql_syntax(FuncExpr *expr, deparse_context *context)
appendStringInfoString(buf, "))");
return true;
case F_EXTRACT_TEXT_DATE:
case F_EXTRACT_TEXT_TIME:
case F_EXTRACT_TEXT_TIMETZ:
case F_EXTRACT_TEXT_TIMESTAMP:
case F_EXTRACT_TEXT_TIMESTAMPTZ:
case F_EXTRACT_TEXT_INTERVAL:
/* EXTRACT (x FROM y) */
appendStringInfoString(buf, "EXTRACT(");
{
Const *con = (Const *) linitial(expr->args);
Assert(IsA(con, Const) &&
con->consttype == TEXTOID &&
!con->constisnull);
appendStringInfoString(buf, TextDatumGetCString(con->constvalue));
}
appendStringInfoString(buf, " FROM ");
get_rule_expr((Node *) lsecond(expr->args), context, false);
appendStringInfoChar(buf, ')');
return true;
case F_IS_NORMALIZED:
/* IS xxx NORMALIZED */
appendStringInfoString(buf, "((");

471
src/backend/utils/adt/timestamp.c
View File

@ -22,6 +22,7 @@
#include "access/xact.h"
#include "catalog/pg_type.h"
#include "common/int.h"
#include "common/int128.h"
#include "funcapi.h"
#include "libpq/pqformat.h"
@ -35,6 +36,7 @@
#include "utils/date.h"
#include "utils/datetime.h"
#include "utils/float.h"
#include "utils/numeric.h"
/*
* gcc's -ffast-math switch breaks routines that expect exact results from
@ -3991,8 +3993,8 @@ timestamptz_bin(PG_FUNCTION_ARGS)
{
Interval *stride = PG_GETARG_INTERVAL_P(0);
TimestampTz timestamp = PG_GETARG_TIMESTAMPTZ(1);
TimestampTz origin = PG_GETARG_TIMESTAMPTZ(2);
TimestampTz result,
TimestampTz origin = PG_GETARG_TIMESTAMPTZ(2);
TimestampTz result,
stride_usecs,
tm_diff,
tm_delta;
@ -4597,15 +4599,15 @@ NonFiniteTimestampTzPart(int type, int unit, char *lowunits,
}
}
/* timestamp_part()
/* timestamp_part() and extract_timestamp()
* Extract specified field from timestamp.
*/
Datum
timestamp_part(PG_FUNCTION_ARGS)
static Datum
timestamp_part_common(PG_FUNCTION_ARGS, bool retnumeric)
{
text *units = PG_GETARG_TEXT_PP(0);
Timestamp timestamp = PG_GETARG_TIMESTAMP(1);
float8 result;
int64 intresult;
Timestamp epoch;
int type,
val;
@ -4624,11 +4626,28 @@ timestamp_part(PG_FUNCTION_ARGS)
if (TIMESTAMP_NOT_FINITE(timestamp))
{
result = NonFiniteTimestampTzPart(type, val, lowunits,
TIMESTAMP_IS_NOBEGIN(timestamp),
false);
if (result)
PG_RETURN_FLOAT8(result);
double r = NonFiniteTimestampTzPart(type, val, lowunits,
TIMESTAMP_IS_NOBEGIN(timestamp),
false);
if (r)
{
if (retnumeric)
{
if (r < 0)
return DirectFunctionCall3(numeric_in,
CStringGetDatum("-Infinity"),
ObjectIdGetDatum(InvalidOid),
Int32GetDatum(-1));
else if (r > 0)
return DirectFunctionCall3(numeric_in,
CStringGetDatum("Infinity"),
ObjectIdGetDatum(InvalidOid),
Int32GetDatum(-1));
}
else
PG_RETURN_FLOAT8(r);
}
else
PG_RETURN_NULL();
}
@ -4643,47 +4662,61 @@ timestamp_part(PG_FUNCTION_ARGS)
switch (val)
{
case DTK_MICROSEC:
result = tm->tm_sec * 1000000.0 + fsec;
intresult = tm->tm_sec * 1000000.0 + fsec;
break;
case DTK_MILLISEC:
result = tm->tm_sec * 1000.0 + fsec / 1000.0;
if (retnumeric)
/*---
* tm->tm_sec * 1000 + fsec / 1000
* = (tm->tm_sec * 1'000'000 + fsec) / 1000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 3));
else
PG_RETURN_FLOAT8(tm->tm_sec * 1000.0 + fsec / 1000.0);
break;
case DTK_SECOND:
result = tm->tm_sec + fsec / 1000000.0;
if (retnumeric)
/*---
* tm->tm_sec + fsec / 1'000'000
* = (tm->tm_sec * 1'000'000 + fsec) / 1'000'000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 6));
else
PG_RETURN_FLOAT8(tm->tm_sec + fsec / 1000000.0);
break;
case DTK_MINUTE:
result = tm->tm_min;
intresult = tm->tm_min;
break;
case DTK_HOUR:
result = tm->tm_hour;
intresult = tm->tm_hour;
break;
case DTK_DAY:
result = tm->tm_mday;
intresult = tm->tm_mday;
break;
case DTK_MONTH:
result = tm->tm_mon;
intresult = tm->tm_mon;
break;
case DTK_QUARTER:
result = (tm->tm_mon - 1) / 3 + 1;
intresult = (tm->tm_mon - 1) / 3 + 1;
break;
case DTK_WEEK:
result = (float8) date2isoweek(tm->tm_year, tm->tm_mon, tm->tm_mday);
intresult = date2isoweek(tm->tm_year, tm->tm_mon, tm->tm_mday);
break;
case DTK_YEAR:
if (tm->tm_year > 0)
result = tm->tm_year;
intresult = tm->tm_year;
else
/* there is no year 0, just 1 BC and 1 AD */
result = tm->tm_year - 1;
intresult = tm->tm_year - 1;
break;
case DTK_DECADE:
@ -4694,9 +4727,9 @@ timestamp_part(PG_FUNCTION_ARGS)
* is 11 BC thru 2 BC...
*/
if (tm->tm_year >= 0)
result = tm->tm_year / 10;
intresult = tm->tm_year / 10;
else
result = -((8 - (tm->tm_year - 1)) / 10);
intresult = -((8 - (tm->tm_year - 1)) / 10);
break;
case DTK_CENTURY:
@ -4708,43 +4741,50 @@ timestamp_part(PG_FUNCTION_ARGS)
* ----
*/
if (tm->tm_year > 0)
result = (tm->tm_year + 99) / 100;
intresult = (tm->tm_year + 99) / 100;
else
/* caution: C division may have negative remainder */
result = -((99 - (tm->tm_year - 1)) / 100);
intresult = -((99 - (tm->tm_year - 1)) / 100);
break;
case DTK_MILLENNIUM:
/* see comments above. */
if (tm->tm_year > 0)
result = (tm->tm_year + 999) / 1000;
intresult = (tm->tm_year + 999) / 1000;
else
result = -((999 - (tm->tm_year - 1)) / 1000);
intresult = -((999 - (tm->tm_year - 1)) / 1000);
break;
case DTK_JULIAN:
result = date2j(tm->tm_year, tm->tm_mon, tm->tm_mday);
result += ((((tm->tm_hour * MINS_PER_HOUR) + tm->tm_min) * SECS_PER_MINUTE) +
tm->tm_sec + (fsec / 1000000.0)) / (double) SECS_PER_DAY;
if (retnumeric)
PG_RETURN_NUMERIC(numeric_add_opt_error(int64_to_numeric(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)),
numeric_div_opt_error(int64_to_numeric(((((tm->tm_hour * MINS_PER_HOUR) + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec) * 1000000LL + fsec),
int64_to_numeric(SECS_PER_DAY * 1000000LL),
NULL),
NULL));
else
PG_RETURN_FLOAT8(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) +
((((tm->tm_hour * MINS_PER_HOUR) + tm->tm_min) * SECS_PER_MINUTE) +
tm->tm_sec + (fsec / 1000000.0)) / (double) SECS_PER_DAY);
break;
case DTK_ISOYEAR:
result = date2isoyear(tm->tm_year, tm->tm_mon, tm->tm_mday);
intresult = date2isoyear(tm->tm_year, tm->tm_mon, tm->tm_mday);
/* Adjust BC years */
if (result <= 0)
result -= 1;
if (intresult <= 0)
intresult -= 1;
break;
case DTK_DOW:
case DTK_ISODOW:
result = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && result == 0)
result = 7;
intresult = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && intresult == 0)
intresult = 7;
break;
case DTK_DOY:
result = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
intresult = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
break;
case DTK_TZ:
@ -4755,7 +4795,7 @@ timestamp_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("timestamp units \"%s\" not supported",
lowunits)));
result = 0;
intresult = 0;
}
}
else if (type == RESERV)
@ -4764,11 +4804,37 @@ timestamp_part(PG_FUNCTION_ARGS)
{
case DTK_EPOCH:
epoch = SetEpochTimestamp();
/* try to avoid precision loss in subtraction */
if (timestamp < (PG_INT64_MAX + epoch))
result = (timestamp - epoch) / 1000000.0;
/* (timestamp - epoch) / 1000000 */
if (retnumeric)
{
Numeric result;
if (timestamp < (PG_INT64_MAX + epoch))
result = int64_div_fast_to_numeric(timestamp - epoch, 6);
else
{
result = numeric_div_opt_error(numeric_sub_opt_error(int64_to_numeric(timestamp),
int64_to_numeric(epoch),
NULL),
int64_to_numeric(1000000),
NULL);
result = DatumGetNumeric(DirectFunctionCall2(numeric_round,
NumericGetDatum(result),
Int32GetDatum(6)));
}
PG_RETURN_NUMERIC(result);
}
else
result = ((float8) timestamp - epoch) / 1000000.0;
{
float8 result;
/* try to avoid precision loss in subtraction */
if (timestamp < (PG_INT64_MAX + epoch))
result = (timestamp - epoch) / 1000000.0;
else
result = ((float8) timestamp - epoch) / 1000000.0;
PG_RETURN_FLOAT8(result);
}
break;
default:
@ -4776,7 +4842,7 @@ timestamp_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("timestamp units \"%s\" not supported",
lowunits)));
result = 0;
intresult = 0;
}
}
@ -4785,27 +4851,41 @@ timestamp_part(PG_FUNCTION_ARGS)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("timestamp units \"%s\" not recognized", lowunits)));
result = 0;
intresult = 0;
}
PG_RETURN_FLOAT8(result);
if (retnumeric)
PG_RETURN_NUMERIC(int64_to_numeric(intresult));
else
PG_RETURN_FLOAT8(intresult);
}
/* timestamptz_part()
Datum
timestamp_part(PG_FUNCTION_ARGS)
{
return timestamp_part_common(fcinfo, false);
}
Datum
extract_timestamp(PG_FUNCTION_ARGS)
{
return timestamp_part_common(fcinfo, true);
}
/* timestamptz_part() and extract_timestamptz()
* Extract specified field from timestamp with time zone.
*/
Datum
timestamptz_part(PG_FUNCTION_ARGS)
static Datum
timestamptz_part_common(PG_FUNCTION_ARGS, bool retnumeric)
{
text *units = PG_GETARG_TEXT_PP(0);
TimestampTz timestamp = PG_GETARG_TIMESTAMPTZ(1);
float8 result;
int64 intresult;
Timestamp epoch;
int tz;
int type,
val;
char *lowunits;
double dummy;
fsec_t fsec;
struct pg_tm tt,
*tm = &tt;
@ -4820,11 +4900,28 @@ timestamptz_part(PG_FUNCTION_ARGS)
if (TIMESTAMP_NOT_FINITE(timestamp))
{
result = NonFiniteTimestampTzPart(type, val, lowunits,
TIMESTAMP_IS_NOBEGIN(timestamp),
true);
if (result)
PG_RETURN_FLOAT8(result);
double r = NonFiniteTimestampTzPart(type, val, lowunits,
TIMESTAMP_IS_NOBEGIN(timestamp),
true);
if (r)
{
if (retnumeric)
{
if (r < 0)
return DirectFunctionCall3(numeric_in,
CStringGetDatum("-Infinity"),
ObjectIdGetDatum(InvalidOid),
Int32GetDatum(-1));
else if (r > 0)
return DirectFunctionCall3(numeric_in,
CStringGetDatum("Infinity"),
ObjectIdGetDatum(InvalidOid),
Int32GetDatum(-1));
}
else
PG_RETURN_FLOAT8(r);
}
else
PG_RETURN_NULL();
}
@ -4839,111 +4936,129 @@ timestamptz_part(PG_FUNCTION_ARGS)
switch (val)
{
case DTK_TZ:
result = -tz;
intresult = -tz;
break;
case DTK_TZ_MINUTE:
result = -tz;
result /= SECS_PER_MINUTE;
FMODULO(result, dummy, (double) MINS_PER_HOUR);
intresult = (-tz / SECS_PER_MINUTE) % MINS_PER_HOUR;
break;
case DTK_TZ_HOUR:
dummy = -tz;
FMODULO(dummy, result, (double) SECS_PER_HOUR);
intresult = -tz / SECS_PER_HOUR;
break;
case DTK_MICROSEC:
result = tm->tm_sec * 1000000.0 + fsec;
intresult = tm->tm_sec * 1000000 + fsec;
break;
case DTK_MILLISEC:
result = tm->tm_sec * 1000.0 + fsec / 1000.0;
if (retnumeric)
/*---
* tm->tm_sec * 1000 + fsec / 1000
* = (tm->tm_sec * 1'000'000 + fsec) / 1000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 3));
else
PG_RETURN_FLOAT8(tm->tm_sec * 1000.0 + fsec / 1000.0);
break;
case DTK_SECOND:
result = tm->tm_sec + fsec / 1000000.0;
if (retnumeric)
/*---
* tm->tm_sec + fsec / 1'000'000
* = (tm->tm_sec * 1'000'000 + fsec) / 1'000'000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 6));
else
PG_RETURN_FLOAT8(tm->tm_sec + fsec / 1000000.0);
break;
case DTK_MINUTE:
result = tm->tm_min;
intresult = tm->tm_min;
break;
case DTK_HOUR:
result = tm->tm_hour;
intresult = tm->tm_hour;
break;
case DTK_DAY:
result = tm->tm_mday;
intresult = tm->tm_mday;
break;
case DTK_MONTH:
result = tm->tm_mon;
intresult = tm->tm_mon;
break;
case DTK_QUARTER:
result = (tm->tm_mon - 1) / 3 + 1;
intresult = (tm->tm_mon - 1) / 3 + 1;
break;
case DTK_WEEK:
result = (float8) date2isoweek(tm->tm_year, tm->tm_mon, tm->tm_mday);
intresult = date2isoweek(tm->tm_year, tm->tm_mon, tm->tm_mday);
break;
case DTK_YEAR:
if (tm->tm_year > 0)
result = tm->tm_year;
intresult = tm->tm_year;
else
/* there is no year 0, just 1 BC and 1 AD */
result = tm->tm_year - 1;
intresult = tm->tm_year - 1;
break;
case DTK_DECADE:
/* see comments in timestamp_part */
if (tm->tm_year > 0)
result = tm->tm_year / 10;
intresult = tm->tm_year / 10;
else
result = -((8 - (tm->tm_year - 1)) / 10);
intresult = -((8 - (tm->tm_year - 1)) / 10);
break;
case DTK_CENTURY:
/* see comments in timestamp_part */
if (tm->tm_year > 0)
result = (tm->tm_year + 99) / 100;
intresult = (tm->tm_year + 99) / 100;
else
result = -((99 - (tm->tm_year - 1)) / 100);
intresult = -((99 - (tm->tm_year - 1)) / 100);
break;
case DTK_MILLENNIUM:
/* see comments in timestamp_part */
if (tm->tm_year > 0)
result = (tm->tm_year + 999) / 1000;
intresult = (tm->tm_year + 999) / 1000;
else
result = -((999 - (tm->tm_year - 1)) / 1000);
intresult = -((999 - (tm->tm_year - 1)) / 1000);
break;
case DTK_JULIAN:
result = date2j(tm->tm_year, tm->tm_mon, tm->tm_mday);
result += ((((tm->tm_hour * MINS_PER_HOUR) + tm->tm_min) * SECS_PER_MINUTE) +
tm->tm_sec + (fsec / 1000000.0)) / (double) SECS_PER_DAY;
if (retnumeric)
PG_RETURN_NUMERIC(numeric_add_opt_error(int64_to_numeric(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)),
numeric_div_opt_error(int64_to_numeric(((((tm->tm_hour * MINS_PER_HOUR) + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec) * 1000000LL + fsec),
int64_to_numeric(SECS_PER_DAY * 1000000LL),
NULL),
NULL));
else
PG_RETURN_FLOAT8(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) +
((((tm->tm_hour * MINS_PER_HOUR) + tm->tm_min) * SECS_PER_MINUTE) +
tm->tm_sec + (fsec / 1000000.0)) / (double) SECS_PER_DAY);
break;
case DTK_ISOYEAR:
result = date2isoyear(tm->tm_year, tm->tm_mon, tm->tm_mday);
intresult = date2isoyear(tm->tm_year, tm->tm_mon, tm->tm_mday);
/* Adjust BC years */
if (result <= 0)
result -= 1;
if (intresult <= 0)
intresult -= 1;
break;
case DTK_DOW:
case DTK_ISODOW:
result = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && result == 0)
result = 7;
intresult = j2day(date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));
if (val == DTK_ISODOW && intresult == 0)
intresult = 7;
break;
case DTK_DOY:
result = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
intresult = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday)
- date2j(tm->tm_year, 1, 1) + 1);
break;
default:
@ -4951,7 +5066,7 @@ timestamptz_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("timestamp with time zone units \"%s\" not supported",
lowunits)));
result = 0;
intresult = 0;
}
}
@ -4961,11 +5076,37 @@ timestamptz_part(PG_FUNCTION_ARGS)
{
case DTK_EPOCH:
epoch = SetEpochTimestamp();
/* try to avoid precision loss in subtraction */
if (timestamp < (PG_INT64_MAX + epoch))
result = (timestamp - epoch) / 1000000.0;
/* (timestamp - epoch) / 1000000 */
if (retnumeric)
{
Numeric result;
if (timestamp < (PG_INT64_MAX + epoch))
result = int64_div_fast_to_numeric(timestamp - epoch, 6);
else
{
result = numeric_div_opt_error(numeric_sub_opt_error(int64_to_numeric(timestamp),
int64_to_numeric(epoch),
NULL),
int64_to_numeric(1000000),
NULL);
result = DatumGetNumeric(DirectFunctionCall2(numeric_round,
NumericGetDatum(result),
Int32GetDatum(6)));
}
PG_RETURN_NUMERIC(result);
}
else
result = ((float8) timestamp - epoch) / 1000000.0;
{
float8 result;
/* try to avoid precision loss in subtraction */
if (timestamp < (PG_INT64_MAX + epoch))
result = (timestamp - epoch) / 1000000.0;
else
result = ((float8) timestamp - epoch) / 1000000.0;
PG_RETURN_FLOAT8(result);
}
break;
default:
@ -4973,7 +5114,7 @@ timestamptz_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("timestamp with time zone units \"%s\" not supported",
lowunits)));
result = 0;
intresult = 0;
}
}
else
@ -4983,22 +5124,37 @@ timestamptz_part(PG_FUNCTION_ARGS)
errmsg("timestamp with time zone units \"%s\" not recognized",
lowunits)));
result = 0;
intresult = 0;
}
PG_RETURN_FLOAT8(result);
if (retnumeric)
PG_RETURN_NUMERIC(int64_to_numeric(intresult));
else
PG_RETURN_FLOAT8(intresult);
}
Datum
timestamptz_part(PG_FUNCTION_ARGS)
{
return timestamptz_part_common(fcinfo, false);
}
Datum
extract_timestamptz(PG_FUNCTION_ARGS)
{
return timestamptz_part_common(fcinfo, true);
}
/* interval_part()
/* interval_part() and extract_interval()
* Extract specified field from interval.
*/
Datum
interval_part(PG_FUNCTION_ARGS)
static Datum
interval_part_common(PG_FUNCTION_ARGS, bool retnumeric)
{
text *units = PG_GETARG_TEXT_PP(0);
Interval *interval = PG_GETARG_INTERVAL_P(1);
float8 result;
int64 intresult;
int type,
val;
char *lowunits;
@ -5021,54 +5177,68 @@ interval_part(PG_FUNCTION_ARGS)
switch (val)
{
case DTK_MICROSEC:
result = tm->tm_sec * 1000000.0 + fsec;
intresult = tm->tm_sec * 1000000 + fsec;
break;
case DTK_MILLISEC:
result = tm->tm_sec * 1000.0 + fsec / 1000.0;
if (retnumeric)
/*---
* tm->tm_sec * 1000 + fsec / 1000
* = (tm->tm_sec * 1'000'000 + fsec) / 1000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 3));
else
PG_RETURN_FLOAT8(tm->tm_sec * 1000.0 + fsec / 1000.0);
break;
case DTK_SECOND:
result = tm->tm_sec + fsec / 1000000.0;
if (retnumeric)
/*---
* tm->tm_sec + fsec / 1'000'000
* = (tm->tm_sec * 1'000'000 + fsec) / 1'000'000
*/
PG_RETURN_NUMERIC(int64_div_fast_to_numeric(tm->tm_sec * 1000000LL + fsec, 6));
else
PG_RETURN_FLOAT8(tm->tm_sec + fsec / 1000000.0);
break;
case DTK_MINUTE:
result = tm->tm_min;
intresult = tm->tm_min;
break;
case DTK_HOUR:
result = tm->tm_hour;
intresult = tm->tm_hour;
break;
case DTK_DAY:
result = tm->tm_mday;
intresult = tm->tm_mday;
break;
case DTK_MONTH:
result = tm->tm_mon;
intresult = tm->tm_mon;
break;
case DTK_QUARTER:
result = (tm->tm_mon / 3) + 1;
intresult = (tm->tm_mon / 3) + 1;
break;
case DTK_YEAR:
result = tm->tm_year;
intresult = tm->tm_year;
break;
case DTK_DECADE:
/* caution: C division may have negative remainder */
result = tm->tm_year / 10;
intresult = tm->tm_year / 10;
break;
case DTK_CENTURY:
/* caution: C division may have negative remainder */
result = tm->tm_year / 100;
intresult = tm->tm_year / 100;
break;
case DTK_MILLENNIUM:
/* caution: C division may have negative remainder */
result = tm->tm_year / 1000;
intresult = tm->tm_year / 1000;
break;
default:
@ -5076,22 +5246,60 @@ interval_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("interval units \"%s\" not supported",
lowunits)));
result = 0;
intresult = 0;
}
}
else
{
elog(ERROR, "could not convert interval to tm");
result = 0;
intresult = 0;
}
}
else if (type == RESERV && val == DTK_EPOCH)
{
result = interval->time / 1000000.0;
result += ((double) DAYS_PER_YEAR * SECS_PER_DAY) * (interval->month / MONTHS_PER_YEAR);
result += ((double) DAYS_PER_MONTH * SECS_PER_DAY) * (interval->month % MONTHS_PER_YEAR);
result += ((double) SECS_PER_DAY) * interval->day;
if (retnumeric)
{
Numeric result;
int64 secs_from_day_month;
int64 val;
/* this always fits into int64 */
secs_from_day_month = ((int64) DAYS_PER_YEAR * (interval->month / MONTHS_PER_YEAR) +
(int64) DAYS_PER_MONTH * (interval->month % MONTHS_PER_YEAR) +
interval->day) * SECS_PER_DAY;
/*---
* result = secs_from_day_month + interval->time / 1'000'000
* = (secs_from_day_month * 1'000'000 + interval->time) / 1'000'000
*/
/*
* Try the computation inside int64; if it overflows, do it in
* numeric (slower). This overflow happens around 10^9 days, so
* not common in practice.
*/
if (!pg_mul_s64_overflow(secs_from_day_month, 1000000, &val) &&
!pg_add_s64_overflow(val, interval->time, &val))
result = int64_div_fast_to_numeric(val, 6);
else
result =
numeric_add_opt_error(int64_div_fast_to_numeric(interval->time, 6),
int64_to_numeric(secs_from_day_month),
NULL);
PG_RETURN_NUMERIC(result);
}
else
{
float8 result;
result = interval->time / 1000000.0;
result += ((double) DAYS_PER_YEAR * SECS_PER_DAY) * (interval->month / MONTHS_PER_YEAR);
result += ((double) DAYS_PER_MONTH * SECS_PER_DAY) * (interval->month % MONTHS_PER_YEAR);
result += ((double) SECS_PER_DAY) * interval->day;
PG_RETURN_FLOAT8(result);
}
}
else
{
@ -5099,10 +5307,25 @@ interval_part(PG_FUNCTION_ARGS)
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("interval units \"%s\" not recognized",
lowunits)));
result = 0;
intresult = 0;
}
PG_RETURN_FLOAT8(result);
if (retnumeric)
PG_RETURN_NUMERIC(int64_to_numeric(intresult));
else
PG_RETURN_FLOAT8(intresult);
}
Datum
interval_part(PG_FUNCTION_ARGS)
{
return interval_part_common(fcinfo, false);
}
Datum
extract_interval(PG_FUNCTION_ARGS)
{
return interval_part_common(fcinfo, true);
}

2
src/include/catalog/catversion.h
View File

@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 202104061
#define CATALOG_VERSION_NO 202104062
#endif

18
src/include/catalog/pg_proc.dat
View File

@ -2339,9 +2339,15 @@
{ oid => '1171', descr => 'extract field from timestamp with time zone',
proname => 'date_part', provolatile => 's', prorettype => 'float8',
proargtypes => 'text timestamptz', prosrc => 'timestamptz_part' },
{ oid => '9983', descr => 'extract field from timestamp with time zone',
proname => 'extract', provolatile => 's', prorettype => 'numeric',
proargtypes => 'text timestamptz', prosrc => 'extract_timestamptz' },
{ oid => '1172', descr => 'extract field from interval',
proname => 'date_part', prorettype => 'float8',
proargtypes => 'text interval', prosrc => 'interval_part' },
{ oid => '9984', descr => 'extract field from interval',
proname => 'extract', prorettype => 'numeric', proargtypes => 'text interval',
prosrc => 'extract_interval' },
{ oid => '1174', descr => 'convert date to timestamp with time zone',
proname => 'timestamptz', provolatile => 's', prorettype => 'timestamptz',
proargtypes => 'date', prosrc => 'date_timestamptz' },
@ -2489,6 +2495,9 @@
{ oid => '1273', descr => 'extract field from time with time zone',
proname => 'date_part', prorettype => 'float8', proargtypes => 'text timetz',
prosrc => 'timetz_part' },
{ oid => '9981', descr => 'extract field from time with time zone',
proname => 'extract', prorettype => 'numeric', proargtypes => 'text timetz',
prosrc => 'extract_timetz' },
{ oid => '1274',
proname => 'int84pl', prorettype => 'int8', proargtypes => 'int8 int4',
prosrc => 'int84pl' },
@ -2834,9 +2843,15 @@
proname => 'date_part', prolang => 'sql', prorettype => 'float8',
proargtypes => 'text date',
prosrc => 'select pg_catalog.date_part($1, cast($2 as timestamp without time zone))' },
{ oid => '9979', descr => 'extract field from date',
proname => 'extract', prorettype => 'numeric', proargtypes => 'text date',
prosrc => 'extract_date' },
{ oid => '1385', descr => 'extract field from time',
proname => 'date_part', prorettype => 'float8', proargtypes => 'text time',
prosrc => 'time_part' },
{ oid => '9980', descr => 'extract field from time',
proname => 'extract', prorettype => 'numeric', proargtypes => 'text time',
prosrc => 'extract_time' },
{ oid => '1386',
descr => 'date difference from today preserving months and years',
proname => 'age', prolang => 'sql', provolatile => 's',
@ -5835,6 +5850,9 @@
{ oid => '2021', descr => 'extract field from timestamp',
proname => 'date_part', prorettype => 'float8',
proargtypes => 'text timestamp', prosrc => 'timestamp_part' },
{ oid => '9982', descr => 'extract field from timestamp',
proname => 'extract', prorettype => 'numeric',
proargtypes => 'text timestamp', prosrc => 'extract_timestamp' },
{ oid => '2024', descr => 'convert date to timestamp',
proname => 'timestamp', prorettype => 'timestamp', proargtypes => 'date',
prosrc => 'date_timestamp' },

1
src/include/utils/numeric.h
View File

@ -63,6 +63,7 @@ extern char *numeric_out_sci(Numeric num, int scale);
extern char *numeric_normalize(Numeric num);
extern Numeric int64_to_numeric(int64 val);
extern Numeric int64_div_fast_to_numeric(int64 val1, int log10val2);
extern Numeric numeric_add_opt_error(Numeric num1, Numeric num2,
bool *have_error);

2
src/test/regress/expected/create_view.out
View File

@ -1787,7 +1787,7 @@ select
select pg_get_viewdef('tt201v', true);
pg_get_viewdef
-----------------------------------------------------------------------------------------------
SELECT date_part('day'::text, now()) AS extr, +
SELECT EXTRACT(day FROM now()) AS extr, +
((now(), '@ 1 day'::interval) OVERLAPS (CURRENT_TIMESTAMP(2), '@ 1 day'::interval)) AS o,+
(('foo'::text) IS NORMALIZED) AS isn, +
(('foo'::text) IS NFKC NORMALIZED) AS isnn, +

452
src/test/regress/expected/date.out
View File

@ -966,66 +966,66 @@ SELECT f1 as "date",
-- epoch
--
SELECT EXTRACT(EPOCH FROM DATE '1970-01-01'); -- 0
date_part
-----------
0
extract
---------
0
(1 row)
--
-- century
--
SELECT EXTRACT(CENTURY FROM DATE '0101-12-31 BC'); -- -2
date_part
-----------
-2
extract
---------
-2
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0100-12-31 BC'); -- -1
date_part
-----------
-1
extract
---------
-1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0001-12-31 BC'); -- -1
date_part
-----------
-1
extract
---------
-1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0001-01-01'); -- 1
date_part
-----------
1
extract
---------
1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '0001-01-01 AD'); -- 1
date_part
-----------
1
extract
---------
1
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '1900-12-31'); -- 19
date_part
-----------
19
extract
---------
19
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '1901-01-01'); -- 20
date_part
-----------
20
extract
---------
20
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '2000-12-31'); -- 20
date_part
-----------
20
extract
---------
20
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '2001-01-01'); -- 21
date_part
-----------
21
extract
---------
21
(1 row)
SELECT EXTRACT(CENTURY FROM CURRENT_DATE)>=21 AS True; -- true
@ -1038,217 +1038,218 @@ SELECT EXTRACT(CENTURY FROM CURRENT_DATE)>=21 AS True; -- true
-- millennium
--
SELECT EXTRACT(MILLENNIUM FROM DATE '0001-12-31 BC'); -- -1
date_part
-----------
-1
extract
---------
-1
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '0001-01-01 AD'); -- 1
date_part
-----------
1
extract
---------
1
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '1000-12-31'); -- 1
date_part
-----------
1
extract
---------
1
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '1001-01-01'); -- 2
date_part
-----------
2
extract
---------
2
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '2000-12-31'); -- 2
date_part
-----------
2
extract
---------
2
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '2001-01-01'); -- 3
date_part
-----------
3
extract
---------
3
(1 row)
-- next test to be fixed on the turn of the next millennium;-)
SELECT EXTRACT(MILLENNIUM FROM CURRENT_DATE); -- 3
date_part
-----------
3
extract
---------
3
(1 row)
--
-- decade
--
SELECT EXTRACT(DECADE FROM DATE '1994-12-25'); -- 199
date_part
-----------
199
extract
---------
199
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0010-01-01'); -- 1
date_part
-----------
1
extract
---------
1
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0009-12-31'); -- 0
date_part
-----------
0
extract
---------
0
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0001-01-01 BC'); -- 0
date_part
-----------
0
extract
---------
0
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0002-12-31 BC'); -- -1
date_part
-----------
-1
extract
---------
-1
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0011-01-01 BC'); -- -1
date_part
-----------
-1
extract
---------
-1
(1 row)
SELECT EXTRACT(DECADE FROM DATE '0012-12-31 BC'); -- -2
date_part
-----------
-2
extract
---------
-2
(1 row)
--
-- all possible fields
--
SELECT EXTRACT(MICROSECONDS FROM DATE '2020-08-11');
date_part
-----------
0
(1 row)
ERROR: date units "microseconds" not supported
SELECT EXTRACT(MILLISECONDS FROM DATE '2020-08-11');
date_part
-----------
0
(1 row)
ERROR: date units "milliseconds" not supported
SELECT EXTRACT(SECOND FROM DATE '2020-08-11');
date_part
-----------
0
(1 row)
ERROR: date units "second" not supported
SELECT EXTRACT(MINUTE FROM DATE '2020-08-11');
date_part
-----------
0
(1 row)
ERROR: date units "minute" not supported
SELECT EXTRACT(HOUR FROM DATE '2020-08-11');
date_part
-----------
0
(1 row)
ERROR: date units "hour" not supported
SELECT EXTRACT(DAY FROM DATE '2020-08-11');
date_part
-----------
11
extract
---------
11
(1 row)
SELECT EXTRACT(MONTH FROM DATE '2020-08-11');
date_part
-----------
8
extract
---------
8
(1 row)
SELECT EXTRACT(YEAR FROM DATE '2020-08-11');
date_part
-----------
2020
extract
---------
2020
(1 row)
SELECT EXTRACT(YEAR FROM DATE '2020-08-11 BC');
extract
---------
-2020
(1 row)
SELECT EXTRACT(DECADE FROM DATE '2020-08-11');
date_part
-----------
202
extract
---------
202
(1 row)
SELECT EXTRACT(CENTURY FROM DATE '2020-08-11');
date_part
-----------
21
extract
---------
21
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE '2020-08-11');
date_part
-----------
3
extract
---------
3
(1 row)
SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11');
date_part
-----------
2020
extract
---------
2020
(1 row)
SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11 BC');
extract
---------
-2020
(1 row)
SELECT EXTRACT(QUARTER FROM DATE '2020-08-11');
date_part
-----------
3
extract
---------
3
(1 row)
SELECT EXTRACT(WEEK FROM DATE '2020-08-11');
date_part
-----------
33
extract
---------
33
(1 row)
SELECT EXTRACT(DOW FROM DATE '2020-08-11');
date_part
-----------
2
extract
---------
2
(1 row)
SELECT EXTRACT(DOW FROM DATE '2020-08-16');
extract
---------
0
(1 row)
SELECT EXTRACT(ISODOW FROM DATE '2020-08-11');
date_part
-----------
2
extract
---------
2
(1 row)
SELECT EXTRACT(ISODOW FROM DATE '2020-08-16');
extract
---------
7
(1 row)
SELECT EXTRACT(DOY FROM DATE '2020-08-11');
date_part
-----------
224
extract
---------
224
(1 row)
SELECT EXTRACT(TIMEZONE FROM DATE '2020-08-11');
ERROR: timestamp units "timezone" not supported
CONTEXT: SQL function "date_part" statement 1
ERROR: date units "timezone" not supported
SELECT EXTRACT(TIMEZONE_M FROM DATE '2020-08-11');
ERROR: timestamp units "timezone_m" not supported
CONTEXT: SQL function "date_part" statement 1
ERROR: date units "timezone_m" not supported
SELECT EXTRACT(TIMEZONE_H FROM DATE '2020-08-11');
ERROR: timestamp units "timezone_h" not supported
CONTEXT: SQL function "date_part" statement 1
ERROR: date units "timezone_h" not supported
SELECT EXTRACT(EPOCH FROM DATE '2020-08-11');
date_part
extract
------------
1597104000
(1 row)
SELECT EXTRACT(JULIAN FROM DATE '2020-08-11');
date_part
-----------
2459073
extract
---------
2459073
(1 row)
--
@ -1344,173 +1345,124 @@ select isfinite('infinity'::date), isfinite('-infinity'::date), isfinite('today'
--
-- oscillating fields from non-finite date:
--
SELECT EXTRACT(HOUR FROM DATE 'infinity'); -- NULL
date_part
-----------
SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL
extract
---------
(1 row)
SELECT EXTRACT(HOUR FROM DATE '-infinity'); -- NULL
date_part
-----------
(1 row)
-- all possible fields
SELECT EXTRACT(MICROSECONDS FROM DATE 'infinity'); -- NULL
date_part
-----------
(1 row)
SELECT EXTRACT(MILLISECONDS FROM DATE 'infinity'); -- NULL
date_part
-----------
(1 row)
SELECT EXTRACT(SECOND FROM DATE 'infinity'); -- NULL
date_part
-----------
(1 row)
SELECT EXTRACT(MINUTE FROM DATE 'infinity'); -- NULL
date_part
-----------
(1 row)
SELECT EXTRACT(HOUR FROM DATE 'infinity'); -- NULL
date_part
-----------
SELECT EXTRACT(DAY FROM DATE '-infinity'); -- NULL
extract
---------
(1 row)
-- all supported fields
SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL
date_part
-----------
extract
---------
(1 row)
SELECT EXTRACT(MONTH FROM DATE 'infinity'); -- NULL
date_part
-----------
extract
---------
(1 row)
SELECT EXTRACT(QUARTER FROM DATE 'infinity'); -- NULL
date_part
-----------
extract
---------
(1 row)
SELECT EXTRACT(WEEK FROM DATE 'infinity'); -- NULL
date_part
-----------
extract
---------
(1 row)
SELECT EXTRACT(DOW FROM DATE 'infinity'); -- NULL
date_part
-----------
extract
---------
(1 row)
SELECT EXTRACT(ISODOW FROM DATE 'infinity'); -- NULL
date_part
-----------
extract
---------
(1 row)
SELECT EXTRACT(DOY FROM DATE 'infinity'); -- NULL
date_part
-----------
(1 row)
SELECT EXTRACT(TIMEZONE FROM DATE 'infinity'); -- NULL
date_part
-----------
(1 row)
SELECT EXTRACT(TIMEZONE_M FROM DATE 'infinity'); -- NULL
date_part
-----------
(1 row)
SELECT EXTRACT(TIMEZONE_H FROM DATE 'infinity'); -- NULL
date_part
-----------
extract
---------
(1 row)
--
-- monotonic fields from non-finite date:
--
SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(EPOCH FROM DATE '-infinity'); -- -Infinity
date_part
extract
-----------
-Infinity
(1 row)
-- all possible fields
-- all supported fields
SELECT EXTRACT(YEAR FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(DECADE FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(CENTURY FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(MILLENNIUM FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(JULIAN FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(ISOYEAR FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity
date_part
-----------
Infinity
extract
----------
Infinity
(1 row)
--
-- wrong fields from non-finite date:
--
SELECT EXTRACT(MICROSEC FROM DATE 'infinity'); -- ERROR: timestamp units "microsec" not recognized
ERROR: timestamp units "microsec" not recognized
CONTEXT: SQL function "date_part" statement 1
SELECT EXTRACT(MICROSEC FROM DATE 'infinity'); -- error
ERROR: date units "microsec" not recognized
-- test constructors
select make_date(2013, 7, 15);
make_date

101
src/test/regress/expected/interval.out
View File

@ -948,18 +948,18 @@ SELECT f1,
EXTRACT(MILLENNIUM FROM f1) AS MILLENNIUM,
EXTRACT(EPOCH FROM f1) AS EPOCH
FROM INTERVAL_TBL;
f1 | microsecond | millisecond | second | minute | hour | day | month | quarter | year | decade | century | millennium | epoch
-------------------------------+-------------+-------------+--------+--------+------+-----+-------+---------+------+--------+---------+------------+------------
@ 1 min | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 60
@ 5 hours | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 18000
@ 10 days | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 1 | 0 | 0 | 0 | 0 | 864000
@ 34 years | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 34 | 3 | 0 | 0 | 1072958400
@ 3 mons | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 7776000
@ 14 secs ago | -14000000 | -14000 | -14 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | -14
@ 1 day 2 hours 3 mins 4 secs | 4000000 | 4000 | 4 | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 93784
@ 6 years | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 0 | 0 | 189345600
@ 5 mons | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 2 | 0 | 0 | 0 | 0 | 12960000
@ 5 mons 12 hours | 0 | 0 | 0 | 0 | 12 | 0 | 5 | 2 | 0 | 0 | 0 | 0 | 13003200
f1 | microsecond | millisecond | second | minute | hour | day | month | quarter | year | decade | century | millennium | epoch
-------------------------------+-------------+-------------+------------+--------+------+-----+-------+---------+------+--------+---------+------------+-------------------
@ 1 min | 0 | 0.000 | 0.000000 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 60.000000
@ 5 hours | 0 | 0.000 | 0.000000 | 0 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 18000.000000
@ 10 days | 0 | 0.000 | 0.000000 | 0 | 0 | 10 | 0 | 1 | 0 | 0 | 0 | 0 | 864000.000000
@ 34 years | 0 | 0.000 | 0.000000 | 0 | 0 | 0 | 0 | 1 | 34 | 3 | 0 | 0 | 1072224000.000000
@ 3 mons | 0 | 0.000 | 0.000000 | 0 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 7776000.000000
@ 14 secs ago | -14000000 | -14000.000 | -14.000000 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | -14.000000
@ 1 day 2 hours 3 mins 4 secs | 4000000 | 4000.000 | 4.000000 | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 93784.000000
@ 6 years | 0 | 0.000 | 0.000000 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 0 | 0 | 189216000.000000
@ 5 mons | 0 | 0.000 | 0.000000 | 0 | 0 | 0 | 5 | 2 | 0 | 0 | 0 | 0 | 12960000.000000
@ 5 mons 12 hours | 0 | 0.000 | 0.000000 | 0 | 12 | 0 | 5 | 2 | 0 | 0 | 0 | 0 | 13003200.000000
(10 rows)
SELECT EXTRACT(FORTNIGHT FROM INTERVAL '2 days'); -- error
@ -967,50 +967,79 @@ ERROR: interval units "fortnight" not recognized
SELECT EXTRACT(TIMEZONE FROM INTERVAL '2 days'); -- error
ERROR: interval units "timezone" not supported
SELECT EXTRACT(DECADE FROM INTERVAL '100 y');
date_part
-----------
10
extract
---------
10
(1 row)
SELECT EXTRACT(DECADE FROM INTERVAL '99 y');
date_part
-----------
9
extract
---------
9
(1 row)
SELECT EXTRACT(DECADE FROM INTERVAL '-99 y');
date_part
-----------
-9
extract
---------
-9
(1 row)
SELECT EXTRACT(DECADE FROM INTERVAL '-100 y');
date_part
-----------
-10
extract
---------
-10
(1 row)
SELECT EXTRACT(CENTURY FROM INTERVAL '100 y');
date_part
-----------
1
extract
---------
1
(1 row)
SELECT EXTRACT(CENTURY FROM INTERVAL '99 y');
date_part
-----------
0
extract
---------
0
(1 row)
SELECT EXTRACT(CENTURY FROM INTERVAL '-99 y');
date_part
-----------
0
extract
---------
0
(1 row)
SELECT EXTRACT(CENTURY FROM INTERVAL '-100 y');
date_part
-----------
-1
extract
---------
-1
(1 row)
-- date_part implementation is mostly the same as extract, so only
-- test a few cases for additional coverage.
SELECT f1,
date_part('microsecond', f1) AS microsecond,
date_part('millisecond', f1) AS millisecond,
date_part('second', f1) AS second,
date_part('epoch', f1) AS epoch
FROM INTERVAL_TBL;
f1 | microsecond | millisecond | second | epoch
-------------------------------+-------------+-------------+--------+------------
@ 1 min | 0 | 0 | 0 | 60
@ 5 hours | 0 | 0 | 0 | 18000
@ 10 days | 0 | 0 | 0 | 864000
@ 34 years | 0 | 0 | 0 | 1072958400
@ 3 mons | 0 | 0 | 0 | 7776000
@ 14 secs ago | -14000000 | -14000 | -14 | -14
@ 1 day 2 hours 3 mins 4 secs | 4000000 | 4000 | 4 | 93784
@ 6 years | 0 | 0 | 0 | 189345600
@ 5 mons | 0 | 0 | 0 | 12960000
@ 5 mons 12 hours | 0 | 0 | 0 | 13003200
(10 rows)
-- internal overflow test case
SELECT extract(epoch from interval '1000000000 days');
extract
-----------------------
86400000000000.000000
(1 row)

12
src/test/regress/expected/psql_crosstab.out
View File

@ -17,12 +17,12 @@ SELECT v, EXTRACT(year FROM d), count(*)
FROM ctv_data
GROUP BY 1, 2
ORDER BY 1, 2;
v | date_part | count
----+-----------+-------
v0 | 2014 | 2
v0 | 2015 | 1
v1 | 2015 | 3
v2 | 2015 | 1
v | extract | count
----+---------+-------
v0 | 2014 | 2
v0 | 2015 | 1
v1 | 2015 | 3
v2 | 2015 | 1
(4 rows)
-- basic usage with 3 columns

48
src/test/regress/expected/time.out
View File

@ -131,33 +131,33 @@ HINT: Could not choose a best candidate operator. You might need to add explici
-- test EXTRACT
--
SELECT EXTRACT(MICROSECOND FROM TIME '2020-05-26 13:30:25.575401');
date_part
-----------
25575401
extract
----------
25575401
(1 row)
SELECT EXTRACT(MILLISECOND FROM TIME '2020-05-26 13:30:25.575401');
date_part
extract
-----------
25575.401
(1 row)
SELECT EXTRACT(SECOND FROM TIME '2020-05-26 13:30:25.575401');
date_part
extract
-----------
25.575401
(1 row)
SELECT EXTRACT(MINUTE FROM TIME '2020-05-26 13:30:25.575401');
date_part
-----------
30
extract
---------
30
(1 row)
SELECT EXTRACT(HOUR FROM TIME '2020-05-26 13:30:25.575401');
date_part
-----------
13
extract
---------
13
(1 row)
SELECT EXTRACT(DAY FROM TIME '2020-05-26 13:30:25.575401'); -- error
@ -167,6 +167,32 @@ ERROR: "time" units "fortnight" not recognized
SELECT EXTRACT(TIMEZONE FROM TIME '2020-05-26 13:30:25.575401'); -- error
ERROR: "time" units "timezone" not recognized
SELECT EXTRACT(EPOCH FROM TIME '2020-05-26 13:30:25.575401');
extract
--------------
48625.575401
(1 row)
-- date_part implementation is mostly the same as extract, so only
-- test a few cases for additional coverage.
SELECT date_part('microsecond', TIME '2020-05-26 13:30:25.575401');
date_part
-----------
25575401
(1 row)
SELECT date_part('millisecond', TIME '2020-05-26 13:30:25.575401');
date_part
-----------
25575.401
(1 row)
SELECT date_part('second', TIME '2020-05-26 13:30:25.575401');
date_part
-----------
25.575401
(1 row)
SELECT date_part('epoch', TIME '2020-05-26 13:30:25.575401');
date_part
--------------
48625.575401

91
src/test/regress/expected/timestamp.out
View File

@ -1012,6 +1012,84 @@ SELECT d1 as "timestamp",
Mon Jan 01 17:32:01 2001 | 200 | 21 | 3 | 2451912 | 978370321
(65 rows)
-- extract implementation is mostly the same as date_part, so only
-- test a few cases for additional coverage.
SELECT d1 as "timestamp",
extract(microseconds from d1) AS microseconds,
extract(milliseconds from d1) AS milliseconds,
extract(seconds from d1) AS seconds,
round(extract(julian from d1)) AS julian,
extract(epoch from d1) AS epoch
FROM TIMESTAMP_TBL;
timestamp | microseconds | milliseconds | seconds | julian | epoch
-----------------------------+--------------+--------------+-----------+-----------+---------------------
-infinity | | | | -Infinity | -Infinity
infinity | | | | Infinity | Infinity
Thu Jan 01 00:00:00 1970 | 0 | 0.000 | 0.000000 | 2440588 | 0.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:02 1997 | 2000000 | 2000.000 | 2.000000 | 2450491 | 855595922.000000
Mon Feb 10 17:32:01.4 1997 | 1400000 | 1400.000 | 1.400000 | 2450491 | 855595921.400000
Mon Feb 10 17:32:01.5 1997 | 1500000 | 1500.000 | 1.500000 | 2450491 | 855595921.500000
Mon Feb 10 17:32:01.6 1997 | 1600000 | 1600.000 | 1.600000 | 2450491 | 855595921.600000
Thu Jan 02 00:00:00 1997 | 0 | 0.000 | 0.000000 | 2450451 | 852163200.000000
Thu Jan 02 03:04:05 1997 | 5000000 | 5000.000 | 5.000000 | 2450451 | 852174245.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Tue Jun 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450611 | 865963921.000000
Sat Sep 22 18:19:20 2001 | 20000000 | 20000.000 | 20.000000 | 2452176 | 1001182760.000000
Wed Mar 15 08:14:01 2000 | 1000000 | 1000.000 | 1.000000 | 2451619 | 953108041.000000
Wed Mar 15 13:14:02 2000 | 2000000 | 2000.000 | 2.000000 | 2451620 | 953126042.000000
Wed Mar 15 12:14:03 2000 | 3000000 | 3000.000 | 3.000000 | 2451620 | 953122443.000000
Wed Mar 15 03:14:04 2000 | 4000000 | 4000.000 | 4.000000 | 2451619 | 953090044.000000
Wed Mar 15 02:14:05 2000 | 5000000 | 5000.000 | 5.000000 | 2451619 | 953086445.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:00 1997 | 0 | 0.000 | 0.000000 | 2450491 | 855595920.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Tue Jun 10 18:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450611 | 865967521.000000
Mon Feb 10 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450491 | 855595921.000000
Tue Feb 11 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450492 | 855682321.000000
Wed Feb 12 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450493 | 855768721.000000
Thu Feb 13 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450494 | 855855121.000000
Fri Feb 14 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450495 | 855941521.000000
Sat Feb 15 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450496 | 856027921.000000
Sun Feb 16 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450497 | 856114321.000000
Tue Feb 16 17:32:01 0097 BC | 1000000 | 1000.000 | 1.000000 | 1686043 | -65192711279.000000
Sat Feb 16 17:32:01 0097 | 1000000 | 1000.000 | 1.000000 | 1756537 | -59102029679.000000
Thu Feb 16 17:32:01 0597 | 1000000 | 1000.000 | 1.000000 | 1939158 | -43323575279.000000
Tue Feb 16 17:32:01 1097 | 1000000 | 1000.000 | 1.000000 | 2121779 | -27545120879.000000
Sat Feb 16 17:32:01 1697 | 1000000 | 1000.000 | 1.000000 | 2340925 | -8610906479.000000
Thu Feb 16 17:32:01 1797 | 1000000 | 1000.000 | 1.000000 | 2377449 | -5455232879.000000
Tue Feb 16 17:32:01 1897 | 1000000 | 1000.000 | 1.000000 | 2413973 | -2299559279.000000
Sun Feb 16 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450497 | 856114321.000000
Sat Feb 16 17:32:01 2097 | 1000000 | 1000.000 | 1.000000 | 2487022 | 4011874321.000000
Wed Feb 28 17:32:01 1996 | 1000000 | 1000.000 | 1.000000 | 2450143 | 825528721.000000
Thu Feb 29 17:32:01 1996 | 1000000 | 1000.000 | 1.000000 | 2450144 | 825615121.000000
Fri Mar 01 17:32:01 1996 | 1000000 | 1000.000 | 1.000000 | 2450145 | 825701521.000000
Mon Dec 30 17:32:01 1996 | 1000000 | 1000.000 | 1.000000 | 2450449 | 851967121.000000
Tue Dec 31 17:32:01 1996 | 1000000 | 1000.000 | 1.000000 | 2450450 | 852053521.000000
Wed Jan 01 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450451 | 852139921.000000
Fri Feb 28 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450509 | 857151121.000000
Sat Mar 01 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450510 | 857237521.000000
Tue Dec 30 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450814 | 883503121.000000
Wed Dec 31 17:32:01 1997 | 1000000 | 1000.000 | 1.000000 | 2450815 | 883589521.000000
Fri Dec 31 17:32:01 1999 | 1000000 | 1000.000 | 1.000000 | 2451545 | 946661521.000000
Sat Jan 01 17:32:01 2000 | 1000000 | 1000.000 | 1.000000 | 2451546 | 946747921.000000
Sun Dec 31 17:32:01 2000 | 1000000 | 1000.000 | 1.000000 | 2451911 | 978283921.000000
Mon Jan 01 17:32:01 2001 | 1000000 | 1000.000 | 1.000000 | 2451912 | 978370321.000000
(65 rows)
-- value near upper bound uses special case in code
SELECT date_part('epoch', '294270-01-01 00:00:00'::timestamp);
date_part
@ -1019,6 +1097,19 @@ SELECT date_part('epoch', '294270-01-01 00:00:00'::timestamp);
9224097091200
(1 row)
SELECT extract(epoch from '294270-01-01 00:00:00'::timestamp);
extract
----------------------
9224097091200.000000
(1 row)
-- another internal overflow test case
SELECT extract(epoch from '5000-01-01 00:00:00'::timestamp);
extract
--------------------
95617584000.000000
(1 row)
-- TO_CHAR()
SELECT to_char(d1, 'DAY Day day DY Dy dy MONTH Month month RM MON Mon mon')
FROM TIMESTAMP_TBL;

92
src/test/regress/expected/timestamptz.out
View File

@ -1189,6 +1189,85 @@ SELECT d1 as timestamptz,
Mon Jan 01 17:32:01 2001 PST | -28800 | -8 | 0
(66 rows)
-- extract implementation is mostly the same as date_part, so only
-- test a few cases for additional coverage.
SELECT d1 as "timestamp",
extract(microseconds from d1) AS microseconds,
extract(milliseconds from d1) AS milliseconds,
extract(seconds from d1) AS seconds,
round(extract(julian from d1)) AS julian,
extract(epoch from d1) AS epoch
FROM TIMESTAMPTZ_TBL;
timestamp | microseconds | milliseconds | seconds | julian | epoch
---------------------------------+--------------+--------------+-----------+-----------+---------------------
-infinity | | | | -Infinity | -Infinity
infinity | | | | Infinity | Infinity
Wed Dec 31 16:00:00 1969 PST | 0 | 0.000 | 0.000000 | 2440588 | 0.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:02 1997 PST | 2000000 | 2000.000 | 2.000000 | 2450491 | 855624722.000000
Mon Feb 10 17:32:01.4 1997 PST | 1400000 | 1400.000 | 1.400000 | 2450491 | 855624721.400000
Mon Feb 10 17:32:01.5 1997 PST | 1500000 | 1500.000 | 1.500000 | 2450491 | 855624721.500000
Mon Feb 10 17:32:01.6 1997 PST | 1600000 | 1600.000 | 1.600000 | 2450491 | 855624721.600000
Thu Jan 02 00:00:00 1997 PST | 0 | 0.000 | 0.000000 | 2450451 | 852192000.000000
Thu Jan 02 03:04:05 1997 PST | 5000000 | 5000.000 | 5.000000 | 2450451 | 852203045.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Tue Jun 10 17:32:01 1997 PDT | 1000000 | 1000.000 | 1.000000 | 2450611 | 865989121.000000
Sat Sep 22 18:19:20 2001 PDT | 20000000 | 20000.000 | 20.000000 | 2452176 | 1001207960.000000
Wed Mar 15 08:14:01 2000 PST | 1000000 | 1000.000 | 1.000000 | 2451619 | 953136841.000000
Wed Mar 15 04:14:02 2000 PST | 2000000 | 2000.000 | 2.000000 | 2451619 | 953122442.000000
Wed Mar 15 02:14:03 2000 PST | 3000000 | 3000.000 | 3.000000 | 2451619 | 953115243.000000
Wed Mar 15 03:14:04 2000 PST | 4000000 | 4000.000 | 4.000000 | 2451619 | 953118844.000000
Wed Mar 15 01:14:05 2000 PST | 5000000 | 5000.000 | 5.000000 | 2451619 | 953111645.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:00 1997 PST | 0 | 0.000 | 0.000000 | 2450491 | 855624720.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Mon Feb 10 09:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450490 | 855595921.000000
Mon Feb 10 09:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450490 | 855595921.000000
Mon Feb 10 09:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450490 | 855595921.000000
Mon Feb 10 14:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855613921.000000
Thu Jul 10 14:32:01 1997 PDT | 1000000 | 1000.000 | 1.000000 | 2450641 | 868570321.000000
Tue Jun 10 18:32:01 1997 PDT | 1000000 | 1000.000 | 1.000000 | 2450611 | 865992721.000000
Mon Feb 10 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450491 | 855624721.000000
Tue Feb 11 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450492 | 855711121.000000
Wed Feb 12 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450493 | 855797521.000000
Thu Feb 13 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450494 | 855883921.000000
Fri Feb 14 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450495 | 855970321.000000
Sat Feb 15 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450496 | 856056721.000000
Sun Feb 16 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450497 | 856143121.000000
Tue Feb 16 17:32:01 0097 PST BC | 1000000 | 1000.000 | 1.000000 | 1686043 | -65192682479.000000
Sat Feb 16 17:32:01 0097 PST | 1000000 | 1000.000 | 1.000000 | 1756537 | -59102000879.000000
Thu Feb 16 17:32:01 0597 PST | 1000000 | 1000.000 | 1.000000 | 1939158 | -43323546479.000000
Tue Feb 16 17:32:01 1097 PST | 1000000 | 1000.000 | 1.000000 | 2121779 | -27545092079.000000
Sat Feb 16 17:32:01 1697 PST | 1000000 | 1000.000 | 1.000000 | 2340925 | -8610877679.000000
Thu Feb 16 17:32:01 1797 PST | 1000000 | 1000.000 | 1.000000 | 2377449 | -5455204079.000000
Tue Feb 16 17:32:01 1897 PST | 1000000 | 1000.000 | 1.000000 | 2413973 | -2299530479.000000
Sun Feb 16 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450497 | 856143121.000000
Sat Feb 16 17:32:01 2097 PST | 1000000 | 1000.000 | 1.000000 | 2487022 | 4011903121.000000
Wed Feb 28 17:32:01 1996 PST | 1000000 | 1000.000 | 1.000000 | 2450143 | 825557521.000000
Thu Feb 29 17:32:01 1996 PST | 1000000 | 1000.000 | 1.000000 | 2450144 | 825643921.000000
Fri Mar 01 17:32:01 1996 PST | 1000000 | 1000.000 | 1.000000 | 2450145 | 825730321.000000
Mon Dec 30 17:32:01 1996 PST | 1000000 | 1000.000 | 1.000000 | 2450449 | 851995921.000000
Tue Dec 31 17:32:01 1996 PST | 1000000 | 1000.000 | 1.000000 | 2450450 | 852082321.000000
Wed Jan 01 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450451 | 852168721.000000
Fri Feb 28 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450509 | 857179921.000000
Sat Mar 01 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450510 | 857266321.000000
Tue Dec 30 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450814 | 883531921.000000
Wed Dec 31 17:32:01 1997 PST | 1000000 | 1000.000 | 1.000000 | 2450815 | 883618321.000000
Fri Dec 31 17:32:01 1999 PST | 1000000 | 1000.000 | 1.000000 | 2451545 | 946690321.000000
Sat Jan 01 17:32:01 2000 PST | 1000000 | 1000.000 | 1.000000 | 2451546 | 946776721.000000
Sun Dec 31 17:32:01 2000 PST | 1000000 | 1000.000 | 1.000000 | 2451911 | 978312721.000000
Mon Jan 01 17:32:01 2001 PST | 1000000 | 1000.000 | 1.000000 | 2451912 | 978399121.000000
(66 rows)
-- value near upper bound uses special case in code
SELECT date_part('epoch', '294270-01-01 00:00:00+00'::timestamptz);
date_part
@ -1196,6 +1275,19 @@ SELECT date_part('epoch', '294270-01-01 00:00:00+00'::timestamptz);
9224097091200
(1 row)
SELECT extract(epoch from '294270-01-01 00:00:00+00'::timestamptz);
extract
----------------------
9224097091200.000000
(1 row)
-- another internal overflow test case
SELECT extract(epoch from '5000-01-01 00:00:00+00'::timestamptz);
extract
--------------------
95617584000.000000
(1 row)
-- TO_CHAR()
SELECT to_char(d1, 'DAY Day day DY Dy dy MONTH Month month RM MON Mon mon')
FROM TIMESTAMPTZ_TBL;

66
src/test/regress/expected/timetz.out
View File

@ -148,33 +148,33 @@ HINT: No operator matches the given name and argument types. You might need to
-- test EXTRACT
--
SELECT EXTRACT(MICROSECOND FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
-----------
25575401
extract
----------
25575401
(1 row)
SELECT EXTRACT(MILLISECOND FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
extract
-----------
25575.401
(1 row)
SELECT EXTRACT(SECOND FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
extract
-----------
25.575401
(1 row)
SELECT EXTRACT(MINUTE FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
-----------
30
extract
---------
30
(1 row)
SELECT EXTRACT(HOUR FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
-----------
13
extract
---------
13
(1 row)
SELECT EXTRACT(DAY FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04'); -- error
@ -182,24 +182,50 @@ ERROR: "time with time zone" units "day" not recognized
SELECT EXTRACT(FORTNIGHT FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04'); -- error
ERROR: "time with time zone" units "fortnight" not recognized
SELECT EXTRACT(TIMEZONE FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04:30');
date_part
-----------
-16200
extract
---------
-16200
(1 row)
SELECT EXTRACT(TIMEZONE_HOUR FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04:30');
date_part
-----------
-4
extract
---------
-4
(1 row)
SELECT EXTRACT(TIMEZONE_MINUTE FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04:30');
date_part
-----------
-30
extract
---------
-30
(1 row)
SELECT EXTRACT(EPOCH FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
extract
--------------
63025.575401
(1 row)
-- date_part implementation is mostly the same as extract, so only
-- test a few cases for additional coverage.
SELECT date_part('microsecond', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
-----------
25575401
(1 row)
SELECT date_part('millisecond', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
-----------
25575.401
(1 row)
SELECT date_part('second', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
-----------
25.575401
(1 row)
SELECT date_part('epoch', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
date_part
--------------
63025.575401

22
src/test/regress/sql/date.sql
View File

@ -284,14 +284,18 @@ SELECT EXTRACT(HOUR FROM DATE '2020-08-11');
SELECT EXTRACT(DAY FROM DATE '2020-08-11');
SELECT EXTRACT(MONTH FROM DATE '2020-08-11');
SELECT EXTRACT(YEAR FROM DATE '2020-08-11');
SELECT EXTRACT(YEAR FROM DATE '2020-08-11 BC');
SELECT EXTRACT(DECADE FROM DATE '2020-08-11');
SELECT EXTRACT(CENTURY FROM DATE '2020-08-11');
SELECT EXTRACT(MILLENNIUM FROM DATE '2020-08-11');
SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11');
SELECT EXTRACT(ISOYEAR FROM DATE '2020-08-11 BC');
SELECT EXTRACT(QUARTER FROM DATE '2020-08-11');
SELECT EXTRACT(WEEK FROM DATE '2020-08-11');
SELECT EXTRACT(DOW FROM DATE '2020-08-11');
SELECT EXTRACT(DOW FROM DATE '2020-08-16');
SELECT EXTRACT(ISODOW FROM DATE '2020-08-11');
SELECT EXTRACT(ISODOW FROM DATE '2020-08-16');
SELECT EXTRACT(DOY FROM DATE '2020-08-11');
SELECT EXTRACT(TIMEZONE FROM DATE '2020-08-11');
SELECT EXTRACT(TIMEZONE_M FROM DATE '2020-08-11');
@ -321,14 +325,9 @@ select isfinite('infinity'::date), isfinite('-infinity'::date), isfinite('today'
--
-- oscillating fields from non-finite date:
--
SELECT EXTRACT(HOUR FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(HOUR FROM DATE '-infinity'); -- NULL
-- all possible fields
SELECT EXTRACT(MICROSECONDS FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(MILLISECONDS FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(SECOND FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(MINUTE FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(HOUR FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(DAY FROM DATE '-infinity'); -- NULL
-- all supported fields
SELECT EXTRACT(DAY FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(MONTH FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(QUARTER FROM DATE 'infinity'); -- NULL
@ -336,15 +335,12 @@ SELECT EXTRACT(WEEK FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(DOW FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(ISODOW FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(DOY FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(TIMEZONE FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(TIMEZONE_M FROM DATE 'infinity'); -- NULL
SELECT EXTRACT(TIMEZONE_H FROM DATE 'infinity'); -- NULL
--
-- monotonic fields from non-finite date:
--
SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity
SELECT EXTRACT(EPOCH FROM DATE '-infinity'); -- -Infinity
-- all possible fields
-- all supported fields
SELECT EXTRACT(YEAR FROM DATE 'infinity'); -- Infinity
SELECT EXTRACT(DECADE FROM DATE 'infinity'); -- Infinity
SELECT EXTRACT(CENTURY FROM DATE 'infinity'); -- Infinity
@ -355,7 +351,7 @@ SELECT EXTRACT(EPOCH FROM DATE 'infinity'); -- Infinity
--
-- wrong fields from non-finite date:
--
SELECT EXTRACT(MICROSEC FROM DATE 'infinity'); -- ERROR: timestamp units "microsec" not recognized
SELECT EXTRACT(MICROSEC FROM DATE 'infinity'); -- error
-- test constructors
select make_date(2013, 7, 15);

12
src/test/regress/sql/interval.sql
View File

@ -343,3 +343,15 @@ SELECT EXTRACT(CENTURY FROM INTERVAL '100 y');
SELECT EXTRACT(CENTURY FROM INTERVAL '99 y');
SELECT EXTRACT(CENTURY FROM INTERVAL '-99 y');
SELECT EXTRACT(CENTURY FROM INTERVAL '-100 y');
-- date_part implementation is mostly the same as extract, so only
-- test a few cases for additional coverage.
SELECT f1,
date_part('microsecond', f1) AS microsecond,
date_part('millisecond', f1) AS millisecond,
date_part('second', f1) AS second,
date_part('epoch', f1) AS epoch
FROM INTERVAL_TBL;
-- internal overflow test case
SELECT extract(epoch from interval '1000000000 days');

7
src/test/regress/sql/time.sql
View File

@ -63,3 +63,10 @@ SELECT EXTRACT(DAY FROM TIME '2020-05-26 13:30:25.575401'); -- error
SELECT EXTRACT(FORTNIGHT FROM TIME '2020-05-26 13:30:25.575401'); -- error
SELECT EXTRACT(TIMEZONE FROM TIME '2020-05-26 13:30:25.575401'); -- error
SELECT EXTRACT(EPOCH FROM TIME '2020-05-26 13:30:25.575401');
-- date_part implementation is mostly the same as extract, so only
-- test a few cases for additional coverage.
SELECT date_part('microsecond', TIME '2020-05-26 13:30:25.575401');
SELECT date_part('millisecond', TIME '2020-05-26 13:30:25.575401');
SELECT date_part('second', TIME '2020-05-26 13:30:25.575401');
SELECT date_part('epoch', TIME '2020-05-26 13:30:25.575401');

13
src/test/regress/sql/timestamp.sql
View File

@ -261,8 +261,21 @@ SELECT d1 as "timestamp",
date_part( 'epoch', d1) AS epoch
FROM TIMESTAMP_TBL;
-- extract implementation is mostly the same as date_part, so only
-- test a few cases for additional coverage.
SELECT d1 as "timestamp",
extract(microseconds from d1) AS microseconds,
extract(milliseconds from d1) AS milliseconds,
extract(seconds from d1) AS seconds,
round(extract(julian from d1)) AS julian,
extract(epoch from d1) AS epoch
FROM TIMESTAMP_TBL;
-- value near upper bound uses special case in code
SELECT date_part('epoch', '294270-01-01 00:00:00'::timestamp);
SELECT extract(epoch from '294270-01-01 00:00:00'::timestamp);
-- another internal overflow test case
SELECT extract(epoch from '5000-01-01 00:00:00'::timestamp);
-- TO_CHAR()
SELECT to_char(d1, 'DAY Day day DY Dy dy MONTH Month month RM MON Mon mon')

13
src/test/regress/sql/timestamptz.sql
View File

@ -275,8 +275,21 @@ SELECT d1 as timestamptz,
date_part( 'timezone_minute', d1) AS timezone_minute
FROM TIMESTAMPTZ_TBL;
-- extract implementation is mostly the same as date_part, so only
-- test a few cases for additional coverage.
SELECT d1 as "timestamp",
extract(microseconds from d1) AS microseconds,
extract(milliseconds from d1) AS milliseconds,
extract(seconds from d1) AS seconds,
round(extract(julian from d1)) AS julian,
extract(epoch from d1) AS epoch
FROM TIMESTAMPTZ_TBL;
-- value near upper bound uses special case in code
SELECT date_part('epoch', '294270-01-01 00:00:00+00'::timestamptz);
SELECT extract(epoch from '294270-01-01 00:00:00+00'::timestamptz);
-- another internal overflow test case
SELECT extract(epoch from '5000-01-01 00:00:00+00'::timestamptz);
-- TO_CHAR()
SELECT to_char(d1, 'DAY Day day DY Dy dy MONTH Month month RM MON Mon mon')

7
src/test/regress/sql/timetz.sql
View File

@ -70,3 +70,10 @@ SELECT EXTRACT(TIMEZONE FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-
SELECT EXTRACT(TIMEZONE_HOUR FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04:30');
SELECT EXTRACT(TIMEZONE_MINUTE FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04:30');
SELECT EXTRACT(EPOCH FROM TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
-- date_part implementation is mostly the same as extract, so only
-- test a few cases for additional coverage.
SELECT date_part('microsecond', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
SELECT date_part('millisecond', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
SELECT date_part('second', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');
SELECT date_part('epoch', TIME WITH TIME ZONE '2020-05-26 13:30:25.575401-04');