open-dsi
/
postgres
mirror of https://github.com/postgres/postgres
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Include tinterval comparison functions for span of interval.

Browse Source
pull/50/head
Thomas G. Lockhart 29 years ago
parent 5984746113
commit fbf12681ab
1 changed files with 206 additions and 5 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 211
      src/backend/utils/adt/date.c

211
src/backend/utils/adt/date.c
Unescape View File

@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.18 1997/09/08 21:48:21 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.19 1997/09/20 16:17:45 thomas Exp $
*
* NOTES
* This code is actually (almost) unused.
@ -565,16 +565,217 @@ reltimege(RelativeTime t1, RelativeTime t2)
/*
* intervaleq - returns 1, iff interval i1 is equal to interval i2
* intervalsame - returns 1, iff interval i1 is same as interval i2
* Check begin and end time.
*/
bool
intervaleq(TimeInterval i1, TimeInterval i2)
intervalsame(TimeInterval i1, TimeInterval i2)
{
if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
return (0); /* invalid interval */
return (FALSE); /* invalid interval */
return (abstimeeq(i1->data[0], i2->data[0]) &&
abstimeeq(i1->data[1], i2->data[1]));
}
} /* intervalsame() */
/*
* intervaleq - returns 1, iff interval i1 is equal to interval i2
* Check length of intervals.
*/
bool
intervaleq(TimeInterval i1, TimeInterval i2)
{
AbsoluteTime t10, t11, t20, t21;
if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
return (FALSE); /* invalid interval */
t10 = i1->data[0];
t11 = i1->data[1];
t20 = i2->data[0];
t21 = i2->data[1];
if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
return (FALSE);
if (t10 == CURRENT_ABSTIME)
t10 = GetCurrentTransactionStartTime();
if (t11 == CURRENT_ABSTIME)
t11 = GetCurrentTransactionStartTime();
if (t20 == CURRENT_ABSTIME)
t20 = GetCurrentTransactionStartTime();
if (t21 == CURRENT_ABSTIME)
t21 = GetCurrentTransactionStartTime();
return ((t11-t10) == (t21-t20));
} /* intervaleq() */
/*
* intervalne - returns 1, iff interval i1 is not equal to interval i2
* Check length of intervals.
*/
bool
intervalne(TimeInterval i1, TimeInterval i2)
{
AbsoluteTime t10, t11, t20, t21;
if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
return (FALSE); /* invalid interval */
t10 = i1->data[0];
t11 = i1->data[1];
t20 = i2->data[0];
t21 = i2->data[1];
if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
return (FALSE);
if (t10 == CURRENT_ABSTIME)
t10 = GetCurrentTransactionStartTime();
if (t11 == CURRENT_ABSTIME)
t11 = GetCurrentTransactionStartTime();
if (t20 == CURRENT_ABSTIME)
t20 = GetCurrentTransactionStartTime();
if (t21 == CURRENT_ABSTIME)
t21 = GetCurrentTransactionStartTime();
return ((t11-t10) != (t21-t20));
} /* intervalne() */
/*
* intervallt - returns TRUE, iff interval i1 is less than interval i2
* Check length of intervals.
*/
bool
intervallt(TimeInterval i1, TimeInterval i2)
{
AbsoluteTime t10, t11, t20, t21;
if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
return (FALSE); /* invalid interval */
t10 = i1->data[0];
t11 = i1->data[1];
t20 = i2->data[0];
t21 = i2->data[1];
if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
return (FALSE);
if (t10 == CURRENT_ABSTIME)
t10 = GetCurrentTransactionStartTime();
if (t11 == CURRENT_ABSTIME)
t11 = GetCurrentTransactionStartTime();
if (t20 == CURRENT_ABSTIME)
t20 = GetCurrentTransactionStartTime();
if (t21 == CURRENT_ABSTIME)
t21 = GetCurrentTransactionStartTime();
return ((t11-t10) < (t21-t20));
} /* intervallt() */
/*
* intervalle - returns TRUE, iff interval i1 is less than or equal to interval i2
* Check length of intervals.
*/
bool
intervalle(TimeInterval i1, TimeInterval i2)
{
AbsoluteTime t10, t11, t20, t21;
if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
return (FALSE); /* invalid interval */
t10 = i1->data[0];
t11 = i1->data[1];
t20 = i2->data[0];
t21 = i2->data[1];
if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
return (FALSE);
if (t10 == CURRENT_ABSTIME)
t10 = GetCurrentTransactionStartTime();
if (t11 == CURRENT_ABSTIME)
t11 = GetCurrentTransactionStartTime();
if (t20 == CURRENT_ABSTIME)
t20 = GetCurrentTransactionStartTime();
if (t21 == CURRENT_ABSTIME)
t21 = GetCurrentTransactionStartTime();
return ((t11-t10) <= (t21-t20));
} /* intervalle() */
/*
* intervalgt - returns TRUE, iff interval i1 is less than interval i2
* Check length of intervals.
*/
bool
intervalgt(TimeInterval i1, TimeInterval i2)
{
AbsoluteTime t10, t11, t20, t21;
if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
return (FALSE); /* invalid interval */
t10 = i1->data[0];
t11 = i1->data[1];
t20 = i2->data[0];
t21 = i2->data[1];
if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
return (FALSE);
if (t10 == CURRENT_ABSTIME)
t10 = GetCurrentTransactionStartTime();
if (t11 == CURRENT_ABSTIME)
t11 = GetCurrentTransactionStartTime();
if (t20 == CURRENT_ABSTIME)
t20 = GetCurrentTransactionStartTime();
if (t21 == CURRENT_ABSTIME)
t21 = GetCurrentTransactionStartTime();
return ((t11-t10) > (t21-t20));
} /* intervalgt() */
/*
* intervalge - returns TRUE, iff interval i1 is less than or equal to interval i2
* Check length of intervals.
*/
bool
intervalge(TimeInterval i1, TimeInterval i2)
{
AbsoluteTime t10, t11, t20, t21;
if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
return (FALSE); /* invalid interval */
t10 = i1->data[0];
t11 = i1->data[1];
t20 = i2->data[0];
t21 = i2->data[1];
if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
return (FALSE);
if (t10 == CURRENT_ABSTIME)
t10 = GetCurrentTransactionStartTime();
if (t11 == CURRENT_ABSTIME)
t11 = GetCurrentTransactionStartTime();
if (t20 == CURRENT_ABSTIME)
t20 = GetCurrentTransactionStartTime();
if (t21 == CURRENT_ABSTIME)
t21 = GetCurrentTransactionStartTime();
return ((t11-t10) >= (t21-t20));
} /* intervalge() */
/*
* intervalleneq - returns 1, iff length of interval i is equal to

Write Preview
Loading…
Cancel
Save