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| author | Vadim B. Mikheev <vadim4o@yahoo.com> | 1997-09-18 05:19:17 +0000 |
|---|---|---|
| committer | Vadim B. Mikheev <vadim4o@yahoo.com> | 1997-09-18 05:19:17 +0000 |
| commit | 10971a6f8145aff4ee331f848d27ffd83a8668ba (patch) | |
| tree | f4f41a2fe9dd3597f238ab698e0201a335da0064 | |
| parent | 36b54847cbbe0bf393b8dc3a03b3eb76a3e4788e (diff) | |
| download | postgresql-10971a6f8145aff4ee331f848d27ffd83a8668ba.tar.gz postgresql-10971a6f8145aff4ee331f848d27ffd83a8668ba.zip | |
Allow set max number of tuples in leftist tree for sorts
(-S memory,tuples)
| -rw-r--r-- | src/backend/tcop/postgres.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c index 6c129bdec7c..b5aec218c7a 100644 --- a/src/backend/tcop/postgres.c +++ b/src/backend/tcop/postgres.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.46 1997/09/15 14:28:16 vadim Exp $ + * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.47 1997/09/18 05:19:17 vadim Exp $ * * NOTES * this is the "main" module of the postgres backend and @@ -1120,10 +1120,32 @@ PostgresMain(int argc, char *argv[]) case 'S': /* ---------------- - * S - amount of sort memory to use in 1k bytes + * S - amount of sort memory to use in 1k bytes and + * (optional) max number of tuples in leftist tree * ---------------- */ - SortMem = atoi(optarg); + { + int S; + char *p = strchr (optarg, ','); + + if ( p != NULL ) + { + *p = 0; + S = atoi(optarg); + if ( S >= 4*MAXBLCKSZ/1024 ) + SortMem = S; + S = atoi (p + 1); + if ( S >= 32 ) + SortTuplesInTree = S; + *p = ','; + } + else + { + S = atoi(optarg); + if ( S >= 4*MAXBLCKSZ/1024 ) + SortMem = S; + } + } break; case 's': @@ -1385,7 +1407,7 @@ PostgresMain(int argc, char *argv[]) if (IsUnderPostmaster == false) { puts("\nPOSTGRES backend interactive interface"); - puts("$Revision: 1.46 $ $Date: 1997/09/15 14:28:16 $"); + puts("$Revision: 1.47 $ $Date: 1997/09/18 05:19:17 $"); } /* ---------------- |