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Postgres FD Implementation
Commit fbf12681 authored by Thomas G. Lockhart's avatar Thomas G. Lockhart
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Include tinterval comparison functions for span of interval.

parent 59847461
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Showing with 206 additions and 5 deletions
src/backend/utils/adt/date.c
View file @ fbf12681
......@@ -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
......
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