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Modify nodeAgg.c so that no rows are returned for a GROUP BY

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with no input rows, per pghackers discussions around 7/22/99.  Clean up
a bunch of ugly coding while at it; remove redundant re-lookup of
aggregate info at start of each new GROUP.  Arrange to pfree intermediate
values when they are pass-by-ref types, so that aggregates on pass-by-ref
types no longer eat memory.  This takes care of a couple of TODO items...
This commit is contained in:
Tom Lane
1999-09-26 21:21:15 +00:00
parent 40f6524161
commit be09bc9ff2
4 changed files with 450 additions and 414 deletions
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41
src/backend/utils/adt/float.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.48 1999/09/21 20:58:25 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.49 1999/09/26 21:21:15 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -540,22 +540,25 @@ float4div(float32 arg1, float32 arg2)
CheckFloat4Val(val);
result = (float32) palloc(sizeof(float32data));
*result = *arg1 / *arg2;
*result = val;
return result;
}
float32
float4inc(float32 arg1)
{
float32 result;
double val;
if (!arg1)
return (float32) NULL;
val = *arg1 + (float32data) 1.0;
CheckFloat4Val(val);
*arg1 = val;
return arg1;
result = (float32) palloc(sizeof(float32data));
*result = val;
return result;
}
/*
@ -639,6 +642,7 @@ float8div(float64 arg1, float64 arg2)
float64
float8inc(float64 arg1)
{
float64 result;
double val;
if (!arg1)
@ -646,8 +650,9 @@ float8inc(float64 arg1)
val = *arg1 + (float64data) 1.0;
CheckFloat8Val(val);
*arg1 = val;
return arg1;
result = (float64) palloc(sizeof(float64data));
*result = val;
return result;
}
@ -1388,7 +1393,7 @@ float48eq(float32 arg1, float64 arg2)
if (!arg1 || !arg2)
return 0;
return *arg1 == (float) *arg2;
return *arg1 == *arg2;
}
bool
@ -1397,7 +1402,7 @@ float48ne(float32 arg1, float64 arg2)
if (!arg1 || !arg2)
return 0;
return *arg1 != (float) *arg2;
return *arg1 != *arg2;
}
bool
@ -1406,7 +1411,7 @@ float48lt(float32 arg1, float64 arg2)
if (!arg1 || !arg2)
return 0;
return *arg1 < (float) *arg2;
return *arg1 < *arg2;
}
bool
@ -1415,7 +1420,7 @@ float48le(float32 arg1, float64 arg2)
if (!arg1 || !arg2)
return 0;
return *arg1 <= (float) *arg2;
return *arg1 <= *arg2;
}
bool
@ -1424,7 +1429,7 @@ float48gt(float32 arg1, float64 arg2)
if (!arg1 || !arg2)
return 0;
return *arg1 > (float) *arg2;
return *arg1 > *arg2;
}
bool
@ -1433,7 +1438,7 @@ float48ge(float32 arg1, float64 arg2)
if (!arg1 || !arg2)
return 0;
return *arg1 >= (float) *arg2;
return *arg1 >= *arg2;
}
/*
@ -1445,7 +1450,7 @@ float84eq(float64 arg1, float32 arg2)
if (!arg1 || !arg2)
return 0;
return (float) *arg1 == *arg2;
return *arg1 == *arg2;
}
bool
@ -1454,7 +1459,7 @@ float84ne(float64 arg1, float32 arg2)
if (!arg1 || !arg2)
return 0;
return (float) *arg1 != *arg2;
return *arg1 != *arg2;
}
bool
@ -1463,7 +1468,7 @@ float84lt(float64 arg1, float32 arg2)
if (!arg1 || !arg2)
return 0;
return (float) *arg1 < *arg2;
return *arg1 < *arg2;
}
bool
@ -1472,7 +1477,7 @@ float84le(float64 arg1, float32 arg2)
if (!arg1 || !arg2)
return 0;
return (float) *arg1 <= *arg2;
return *arg1 <= *arg2;
}
bool
@ -1481,7 +1486,7 @@ float84gt(float64 arg1, float32 arg2)
if (!arg1 || !arg2)
return 0;
return (float) *arg1 > *arg2;
return *arg1 > *arg2;
}
bool
@ -1490,7 +1495,7 @@ float84ge(float64 arg1, float32 arg2)
if (!arg1 || !arg2)
return 0;
return (float) *arg1 >= *arg2;
return *arg1 >= *arg2;
}
/* ========== PRIVATE ROUTINES ========== */