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Commit10971a6

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Allow set max number of tuples in leftist tree for sorts
(-S memory,tuples)
1 parent36b5484 commit10971a6

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1 file changed

+26
-4
lines changed

1 file changed

+26
-4
lines changed

‎src/backend/tcop/postgres.c

Lines changed: 26 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.46 1997/09/15 14:28:16 vadim Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.47 1997/09/18 05:19:17 vadim Exp $
1111
*
1212
* NOTES
1313
* this is the "main" module of the postgres backend and
@@ -1120,10 +1120,32 @@ PostgresMain(int argc, char *argv[])
11201120

11211121
case'S':
11221122
/* ----------------
1123-
*S - amount of sort memory to use in 1k bytes
1123+
*S - amount of sort memory to use in 1k bytes and
1124+
*(optional) max number of tuples in leftist tree
11241125
* ----------------
11251126
*/
1126-
SortMem=atoi(optarg);
1127+
{
1128+
intS;
1129+
char*p=strchr (optarg,',');
1130+
1131+
if (p!=NULL )
1132+
{
1133+
*p=0;
1134+
S=atoi(optarg);
1135+
if (S >=4*MAXBLCKSZ/1024 )
1136+
SortMem=S;
1137+
S=atoi (p+1);
1138+
if (S >=32 )
1139+
SortTuplesInTree=S;
1140+
*p=',';
1141+
}
1142+
else
1143+
{
1144+
S=atoi(optarg);
1145+
if (S >=4*MAXBLCKSZ/1024 )
1146+
SortMem=S;
1147+
}
1148+
}
11271149
break;
11281150

11291151
case's':
@@ -1385,7 +1407,7 @@ PostgresMain(int argc, char *argv[])
13851407
if (IsUnderPostmaster== false)
13861408
{
13871409
puts("\nPOSTGRES backend interactive interface");
1388-
puts("$Revision: 1.46 $ $Date: 1997/09/15 14:28:16 $");
1410+
puts("$Revision: 1.47 $ $Date: 1997/09/18 05:19:17 $");
13891411
}
13901412

13911413
/* ----------------

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