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Revise handling of index-type-specific indexscan cost estimation, per

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pghackers discussion of 5-Jan-2000.  The amopselect and amopnpages
estimators are gone, and in their place is a per-AM amcostestimate
procedure (linked to from pg_am, not pg_amop).
This commit is contained in:
Tom Lane
2000-01-22 23:50:30 +00:00
parent 78845177bb
commit 71ed7eb494
30 changed files with 502 additions and 1113 deletions
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17
src/backend/tcop/postgres.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.139 2000/01/09 12:17:33 ishii Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.140 2000/01/22 23:50:18 tgl Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@ -1055,19 +1055,22 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
switch (optarg[0])
{
case 's': /* seqscan */
_enable_seqscan_ = false;
enable_seqscan = false;
break;
case 'i': /* indexscan */
_enable_indexscan_ = false;
enable_indexscan = false;
break;
case 't': /* tidscan */
enable_tidscan = false;
break;
case 'n': /* nestloop */
_enable_nestloop_ = false;
enable_nestloop = false;
break;
case 'm': /* mergejoin */
_enable_mergejoin_ = false;
enable_mergejoin = false;
break;
case 'h': /* hashjoin */
_enable_hashjoin_ = false;
enable_hashjoin = false;
break;
default:
errs++;
@ -1512,7 +1515,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface ");
puts("$Revision: 1.139 $ $Date: 2000/01/09 12:17:33 $\n");
puts("$Revision: 1.140 $ $Date: 2000/01/22 23:50:18 $\n");
}
/*