1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <ctype.h>
#include "postgres.h"
#include "miscadmin.h"
#include "utils/builtins.h"
#include "access/xact.h"
time_t
timestamp_in(const char *timestamp_str)
{
int4 result;
result = nabstimein((char *) timestamp_str);
return result;
}
char *
timestamp_out(time_t timestamp)
{
char *result;
int tz;
double fsec = 0;
struct tm tt,
*tm = &tt;
char buf[MAXDATELEN + 1];
char zone[MAXDATELEN + 1],
*tzn = zone;
abstime2tm(timestamp, &tz, tm, tzn);
EncodeDateTime(tm, fsec, &tz, &tzn, USE_ISO_DATES, buf);
result = palloc(strlen(buf) + 1);
strcpy(result, buf);
return result;
}
time_t
now(void)
{
time_t sec;
sec = GetCurrentTransactionStartTime();
return (sec);
}
bool
timestampeq(time_t t1, time_t t2)
{
#if FALSE
return(t1 == t2);
#endif
return(abstimeeq(t1,t2));
}
bool
timestampne(time_t t1, time_t t2)
{
#if FALSE
return(t1 != t2);
#endif
return(abstimene(t1,t2));
}
bool
timestamplt(time_t t1, time_t t2)
{
#if FALSE
return(t1 > t2);
#endif
return(abstimelt(t1,t2));
}
bool
timestampgt(time_t t1, time_t t2)
{
#if FALSE
return(t1 < t2);
#endif
return(abstimegt(t1,t2));
}
bool
timestample(time_t t1, time_t t2)
{
#if FALSE
return(t1 >= t2);
#endif
return(abstimele(t1,t2));
}
bool
timestampge(time_t t1, time_t t2)
{
#if FALSE
return(t1 <= t2);
#endif
return(abstimege(t1,t2));
}
DateTime *
timestamp_datetime(time_t timestamp)
{
DateTime *result;
double fsec = 0;
struct tm *tm;
if (!PointerIsValid(result = PALLOCTYPE(DateTime)))
elog(WARN, "Memory allocation failed, can't convert timestamp to datetime", NULL);
tm = localtime((time_t *) ×tamp);
tm->tm_year += 1900;
tm->tm_mon += 1;
if (tm2datetime(tm, fsec, NULL, result) != 0)
elog(WARN, "Unable to convert timestamp to datetime", timestamp_out(timestamp));
return (result);
} /* timestamp_datetime() */
|
