Commit4a8c3dd

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Consider right-sided plans if _use_right_sided_plans_ is true.

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+15

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Lines changed: 15 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -7,7 +7,7 @@`
`7`	`7`	`*`
`8`	`8`	`*`
`9`	`9`	`* IDENTIFICATION`
`10`		`- * $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinrels.c,v 1.2 1997/02/2002:54:09 vadim Exp $`
	`10`	`+ * $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinrels.c,v 1.3 1997/05/2010:37:26 vadim Exp $`
`11`	`11`	`*`
`12`	`12`	`*-------------------------------------------------------------------------`
`13`	`13`	`*/`
`@@ -23,6 +23,11 @@`
`23`	`23`	`#include"optimizer/joininfo.h"`
`24`	`24`	`#include"optimizer/pathnode.h"`
`25`	`25`
	`26`	`+#ifdefUSE_RIGHT_SIDED_PLANS`
	`27`	`+bool_use_right_sided_plans_= true;`
	`28`	`+#else`
	`29`	`+bool_use_right_sided_plans_= false;`
	`30`	`+#endif`
`26`	`31`
`27`	`32`	`staticListfind_clause_joins(Queryroot,Relouter_rel,Listjoininfo_list);`
`28`	`33`	`staticListfind_clauseless_joins(Relouter_rel,List*inner_rels);`
`@@ -104,6 +109,15 @@ find_clause_joins(Query root, Rel outer_rel, List *joininfo_list)`
`104`	`109`	`rel=init_join_rel(outer_rel,`
`105`	`110`	`get_base_rel(root,lfirsti(other_rels)),`
`106`	`111`	`joininfo);`
	`112`	`+/* how about right-sided plan ? */`
	`113`	`+if (_use_right_sided_plans_ )`
	`114`	`+ {`
	`115`	`+if (rel!=NULL)`
	`116`	`+join_list=lappend(join_list,rel);`
	`117`	`+rel=init_join_rel(get_base_rel(root,lfirsti(other_rels)),`
	`118`	`+outer_rel,`
	`119`	`+joininfo);`
	`120`	`+ }`
`107`	`121`	`}elseif (BushyPlanFlag) {`
`108`	`122`	`rel=init_join_rel(outer_rel,`
`109`	`123`	`get_join_rel(root,other_rels),`

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