mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-12-21 08:29:39 +08:00
Cleanup of OR processing.
This commit is contained in:
Bruce Momjian
parent
7665e7b0a8
commit
b88e9784b6
@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.22 1998/08/02 07:10:38 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.23 1998/08/03 05:49:19 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -307,17 +307,23 @@ match_index_orclause(RelOptInfo *rel,
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List *other_matching_indices)
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{
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Node *clause = NULL;
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List *matched_indices;
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List *matching_indices = other_matching_indices;
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List *index_list = NIL;
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List *clist;
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/* first time through, we create index list */
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if (!other_matching_indices)
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{
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foreach(clist, or_clauses)
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matching_indices = lcons(NIL, matching_indices);
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}
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else matching_indices = other_matching_indices;
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index_list = matching_indices;
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foreach(clist, or_clauses)
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{
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clause = lfirst(clist);
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if (other_matching_indices)
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matched_indices = lfirst(other_matching_indices);
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else
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matched_indices = NIL;
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if (is_opclause(clause) &&
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op_class(((Oper *) ((Expr *) clause)->oper)->opno,
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@ -333,14 +339,10 @@ match_index_orclause(RelOptInfo *rel,
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index) &&
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IsA(get_rightop((Expr *) clause), Const))))
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{
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matched_indices = lcons(index, matched_indices);
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lfirst(matching_indices) = lcons(index, lfirst(matching_indices));
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}
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/* for the first index, we are creating the indexids list */
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index_list = lappend(index_list, matched_indices);
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if (other_matching_indices)
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other_matching_indices = lnext(other_matching_indices);
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matching_indices = lnext(matching_indices);
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}
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return (index_list);
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@ -3,141 +3,136 @@ Landscape
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Center
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0 0 1.00 60.00 120.00
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0 0 1.00 60.00 120.00
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8400 2100 7725 2100
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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||||
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Before Width: | Height: | Size: 41 KiB After Width: | Height: | Size: 72 KiB |
@ -20,23 +20,23 @@ Click on an item to see more detail or look at the full
|
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<IMG src="flow.jpg" usemap="#flowmap" alt="flowchart">
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||||
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|
||||
<AREA COORDS="10,450,170,490" HREF="backend_dirs.html#utils">
|
||||
<AREA COORDS="10,510,170,550" HREF="backend_dirs.html#nodes">
|
||||
<AREA COORDS="10,570,170,610" HREF="backend_dirs.html#storage">
|
||||
<AREA COORDS="80,130,240,170" HREF="backend_dirs.html#main">
|
||||
<AREA COORDS="80,210,240,250" HREF="backend_dirs.html#postmaster">
|
||||
<AREA COORDS="340,170,500,210" HREF="backend_dirs.html#libpq">
|
||||
<AREA COORDS="80,290,240,330" HREF="backend_dirs.html#tcop">
|
||||
<AREA COORDS="340,290,500,330" HREF="backend_dirs.html#tcop">
|
||||
<AREA COORDS="80,390,240,430" HREF="backend_dirs.html#parser">
|
||||
<AREA COORDS="80,470,240,510" HREF="backend_dirs.html#tcop">
|
||||
<AREA COORDS="80,550,240,590" HREF="backend_dirs.html#optimizer">
|
||||
<AREA COORDS="80,530,240,670" HREF="backend_dirs.html#optimizer/plan">
|
||||
<AREA COORDS="80,710,240,750" HREF="backend_dirs.html#executor">
|
||||
<AREA COORDS="340,470,500,510" HREF="backend_dirs.html#commands">
|
||||
<AREA COORDS="10,820,170,870" HREF="backend_dirs.html#utils">
|
||||
<AREA COORDS="220,820,380,860" HREF="backend_dirs.html#catalog">
|
||||
<AREA COORDS="430,820,600,870" HREF="backend_dirs.html#storage">
|
||||
<AREA COORDS="110,900,280,950" HREF="backend_dirs.html#access">
|
||||
<AREA COORDS="340,900,500,950" HREF="backend_dirs.html#nodes">
|
||||
<AREA COORDS="20,990,180,1030" HREF="backend_dirs.html#bootstrap">
|
||||
</MAP>
|
||||
<BR>
|
||||
<P>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user