Include tinterval comparison functions for span of interval.
This commit is contained in:
Thomas G. Lockhart
parent
5984746113
commit
fbf12681ab
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@ -9,7 +9,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.18 1997/09/08 21:48:21 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.19 1997/09/20 16:17:45 thomas Exp $
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*
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* NOTES
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* This code is actually (almost) unused.
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@ -564,17 +564,218 @@ reltimege(RelativeTime t1, RelativeTime t2)
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}
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/*
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* intervalsame - returns 1, iff interval i1 is same as interval i2
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* Check begin and end time.
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*/
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bool
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intervalsame(TimeInterval i1, TimeInterval i2)
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{
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if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
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return (FALSE); /* invalid interval */
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return (abstimeeq(i1->data[0], i2->data[0]) &&
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abstimeeq(i1->data[1], i2->data[1]));
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} /* intervalsame() */
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/*
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* intervaleq - returns 1, iff interval i1 is equal to interval i2
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* Check length of intervals.
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*/
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bool
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intervaleq(TimeInterval i1, TimeInterval i2)
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{
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AbsoluteTime t10, t11, t20, t21;
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if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
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return (0); /* invalid interval */
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return (abstimeeq(i1->data[0], i2->data[0]) &&
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abstimeeq(i1->data[1], i2->data[1]));
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}
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return (FALSE); /* invalid interval */
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t10 = i1->data[0];
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t11 = i1->data[1];
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t20 = i2->data[0];
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t21 = i2->data[1];
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if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
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|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
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return (FALSE);
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if (t10 == CURRENT_ABSTIME)
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t10 = GetCurrentTransactionStartTime();
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if (t11 == CURRENT_ABSTIME)
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t11 = GetCurrentTransactionStartTime();
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if (t20 == CURRENT_ABSTIME)
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t20 = GetCurrentTransactionStartTime();
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if (t21 == CURRENT_ABSTIME)
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t21 = GetCurrentTransactionStartTime();
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return ((t11-t10) == (t21-t20));
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} /* intervaleq() */
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/*
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* intervalne - returns 1, iff interval i1 is not equal to interval i2
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* Check length of intervals.
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*/
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bool
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intervalne(TimeInterval i1, TimeInterval i2)
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{
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AbsoluteTime t10, t11, t20, t21;
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if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
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return (FALSE); /* invalid interval */
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t10 = i1->data[0];
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t11 = i1->data[1];
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t20 = i2->data[0];
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t21 = i2->data[1];
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if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
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|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
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return (FALSE);
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if (t10 == CURRENT_ABSTIME)
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t10 = GetCurrentTransactionStartTime();
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if (t11 == CURRENT_ABSTIME)
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t11 = GetCurrentTransactionStartTime();
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if (t20 == CURRENT_ABSTIME)
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t20 = GetCurrentTransactionStartTime();
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if (t21 == CURRENT_ABSTIME)
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t21 = GetCurrentTransactionStartTime();
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return ((t11-t10) != (t21-t20));
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} /* intervalne() */
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/*
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* intervallt - returns TRUE, iff interval i1 is less than interval i2
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* Check length of intervals.
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*/
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bool
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intervallt(TimeInterval i1, TimeInterval i2)
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{
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AbsoluteTime t10, t11, t20, t21;
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if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
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return (FALSE); /* invalid interval */
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t10 = i1->data[0];
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t11 = i1->data[1];
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t20 = i2->data[0];
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t21 = i2->data[1];
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if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
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|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
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return (FALSE);
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if (t10 == CURRENT_ABSTIME)
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t10 = GetCurrentTransactionStartTime();
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if (t11 == CURRENT_ABSTIME)
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t11 = GetCurrentTransactionStartTime();
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if (t20 == CURRENT_ABSTIME)
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t20 = GetCurrentTransactionStartTime();
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if (t21 == CURRENT_ABSTIME)
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t21 = GetCurrentTransactionStartTime();
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return ((t11-t10) < (t21-t20));
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} /* intervallt() */
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/*
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* intervalle - returns TRUE, iff interval i1 is less than or equal to interval i2
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* Check length of intervals.
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*/
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bool
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intervalle(TimeInterval i1, TimeInterval i2)
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{
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AbsoluteTime t10, t11, t20, t21;
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if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
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return (FALSE); /* invalid interval */
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t10 = i1->data[0];
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t11 = i1->data[1];
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t20 = i2->data[0];
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t21 = i2->data[1];
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if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
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|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
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return (FALSE);
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if (t10 == CURRENT_ABSTIME)
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t10 = GetCurrentTransactionStartTime();
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if (t11 == CURRENT_ABSTIME)
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t11 = GetCurrentTransactionStartTime();
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if (t20 == CURRENT_ABSTIME)
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t20 = GetCurrentTransactionStartTime();
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if (t21 == CURRENT_ABSTIME)
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t21 = GetCurrentTransactionStartTime();
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return ((t11-t10) <= (t21-t20));
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} /* intervalle() */
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/*
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* intervalgt - returns TRUE, iff interval i1 is less than interval i2
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* Check length of intervals.
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*/
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bool
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intervalgt(TimeInterval i1, TimeInterval i2)
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{
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AbsoluteTime t10, t11, t20, t21;
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if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
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return (FALSE); /* invalid interval */
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t10 = i1->data[0];
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t11 = i1->data[1];
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t20 = i2->data[0];
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t21 = i2->data[1];
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if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
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|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
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return (FALSE);
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if (t10 == CURRENT_ABSTIME)
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t10 = GetCurrentTransactionStartTime();
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if (t11 == CURRENT_ABSTIME)
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t11 = GetCurrentTransactionStartTime();
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if (t20 == CURRENT_ABSTIME)
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t20 = GetCurrentTransactionStartTime();
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if (t21 == CURRENT_ABSTIME)
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t21 = GetCurrentTransactionStartTime();
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return ((t11-t10) > (t21-t20));
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} /* intervalgt() */
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/*
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* intervalge - returns TRUE, iff interval i1 is less than or equal to interval i2
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* Check length of intervals.
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*/
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bool
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intervalge(TimeInterval i1, TimeInterval i2)
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{
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AbsoluteTime t10, t11, t20, t21;
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if (i1->status == T_INTERVAL_INVAL || i2->status == T_INTERVAL_INVAL)
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return (FALSE); /* invalid interval */
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t10 = i1->data[0];
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t11 = i1->data[1];
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t20 = i2->data[0];
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t21 = i2->data[1];
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if ((t10 == INVALID_ABSTIME) || (t20 == INVALID_ABSTIME)
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|| (t20 == INVALID_ABSTIME) || (t21 == INVALID_ABSTIME))
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return (FALSE);
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if (t10 == CURRENT_ABSTIME)
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t10 = GetCurrentTransactionStartTime();
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if (t11 == CURRENT_ABSTIME)
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t11 = GetCurrentTransactionStartTime();
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if (t20 == CURRENT_ABSTIME)
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t20 = GetCurrentTransactionStartTime();
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if (t21 == CURRENT_ABSTIME)
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t21 = GetCurrentTransactionStartTime();
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return ((t11-t10) >= (t21-t20));
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} /* intervalge() */
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/*
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* intervalleneq - returns 1, iff length of interval i is equal to
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