diff options
Diffstat (limited to 'src/backend/optimizer/path/predmig.c')
| -rw-r--r-- | src/backend/optimizer/path/predmig.c | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/src/backend/optimizer/path/predmig.c b/src/backend/optimizer/path/predmig.c index 7b5ba49a452..807331ef1e1 100644 --- a/src/backend/optimizer/path/predmig.c +++ b/src/backend/optimizer/path/predmig.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/predmig.c,v 1.16 1999/02/12 06:43:31 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/predmig.c,v 1.17 1999/02/12 17:24:50 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -53,13 +53,13 @@ * (not a join) iff it has * a non-NULL cinfo field */ -static void xfunc_predmig(NestPath pathnode, Stream streamroot, +static void xfunc_predmig(JoinPath pathnode, Stream streamroot, Stream laststream, bool *progressp); static bool xfunc_series_llel(Stream stream); static bool xfunc_llel_chains(Stream root, Stream bottom); static Stream xfunc_complete_stream(Stream stream); static bool xfunc_prdmig_pullup(Stream origstream, Stream pullme, - NestPath joinpath); + JoinPath joinpath); static void xfunc_form_groups(Stream root, Stream bottom); static void xfunc_free_stream(Stream root); static Stream xfunc_add_clauses(Stream current); @@ -91,8 +91,8 @@ xfunc_do_predmig(Path root) do { progress = false; - Assert(IsA(root, NestPath)); - xfunc_predmig((NestPath) root, (Stream) NULL, (Stream) NULL, + Assert(IsA(root, JoinPath)); + xfunc_predmig((JoinPath) root, (Stream) NULL, (Stream) NULL, &progress); if (changed && progress) elog(DEBUG, "Needed to do a second round of predmig!\n"); @@ -111,7 +111,7 @@ xfunc_do_predmig(Path root) ** Destructively modifies the join tree (via predicate pullup). */ static void -xfunc_predmig(NestPath pathnode,/* root of the join tree */ +xfunc_predmig(JoinPath pathnode,/* root of the join tree */ Stream streamroot, Stream laststream,/* for recursive calls -- these are the * root of the stream under construction, @@ -161,11 +161,11 @@ xfunc_predmig(NestPath pathnode,/* root of the join tree */ else { /* visit left child */ - xfunc_predmig((NestPath) get_outerjoinpath(pathnode), + xfunc_predmig((JoinPath) get_outerjoinpath(pathnode), streamroot, newstream, progressp); /* visit right child */ - xfunc_predmig((NestPath) get_innerjoinpath(pathnode), + xfunc_predmig((JoinPath) get_innerjoinpath(pathnode), streamroot, newstream, progressp); } @@ -257,7 +257,7 @@ xfunc_llel_chains(Stream root, Stream bottom) */ Assert(xfunc_num_relids(pathstream) > xfunc_num_relids(tmpstream)); progress = xfunc_prdmig_pullup(origstream, tmpstream, - (NestPath) get_pathptr(pathstream)); + (JoinPath) get_pathptr(pathstream)); } if (get_downstream(tmpstream)) pathstream = (Stream) xfunc_get_downjoin((Stream) get_downstream(tmpstream)); @@ -304,14 +304,14 @@ xfunc_complete_stream(Stream stream) /* ** xfunc_prdmig_pullup - ** pullup a clause in a path above joinpath. Since the NestPath tree + ** pullup a clause in a path above joinpath. Since the JoinPath tree ** doesn't have upward pointers, it's difficult to deal with. Thus we ** require the original stream, which maintains pointers to all the path ** nodes. We use the original stream to find out what joins are ** above the clause. */ static bool -xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath) +xfunc_prdmig_pullup(Stream origstream, Stream pullme, JoinPath joinpath) { RestrictInfo restrictinfo = get_cinfo(pullme); bool progress = false; @@ -333,7 +333,7 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath) /* pull up this node as far as it should go */ for (upjoin = (Stream) xfunc_get_upjoin(orignode); upjoin != (Stream) NULL - && (NestPath) get_pathptr((Stream) xfunc_get_downjoin(upjoin)) + && (JoinPath) get_pathptr((Stream) xfunc_get_downjoin(upjoin)) != joinpath; upjoin = (Stream) xfunc_get_upjoin(upjoin)) { @@ -342,12 +342,12 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath) #endif /* move clause up in path */ if (get_pathptr((Stream) get_downstream(upjoin)) - == (pathPtr) get_outerjoinpath((NestPath) get_pathptr(upjoin))) + == (pathPtr) get_outerjoinpath((JoinPath) get_pathptr(upjoin))) whichchild = OUTER; else whichchild = INNER; restrictinfo = xfunc_pullup((Path) get_pathptr((Stream) get_downstream(upjoin)), - (NestPath) get_pathptr(upjoin), + (JoinPath) get_pathptr(upjoin), restrictinfo, whichchild, get_clausetype(orignode)); @@ -366,10 +366,10 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath) temp = (Stream) get_downstream(temp)) set_pathptr (temp, (pathPtr) - get_outerjoinpath((NestPath) get_pathptr(upjoin))); + get_outerjoinpath((JoinPath) get_pathptr(upjoin))); set_pathptr (temp, - (pathPtr) get_outerjoinpath((NestPath) get_pathptr(upjoin))); + (pathPtr) get_outerjoinpath((JoinPath) get_pathptr(upjoin))); } else { @@ -377,10 +377,10 @@ xfunc_prdmig_pullup(Stream origstream, Stream pullme, NestPath joinpath) temp = (Stream) get_downstream(temp)) set_pathptr (temp, (pathPtr) - get_innerjoinpath((NestPath) get_pathptr(upjoin))); + get_innerjoinpath((JoinPath) get_pathptr(upjoin))); set_pathptr (temp, (pathPtr) - get_innerjoinpath((NestPath) get_pathptr(upjoin))); + get_innerjoinpath((JoinPath) get_pathptr(upjoin))); } progress = true; } @@ -425,14 +425,14 @@ xfunc_form_groups(Query *queryInfo, Stream root, Stream bottom) if (!is_clause(temp)) { if (get_pathptr((Stream) get_downstream(temp)) - == (pathPtr) get_outerjoinpath((NestPath) get_pathptr(temp))) + == (pathPtr) get_outerjoinpath((JoinPath) get_pathptr(temp))) whichchild = OUTER; else whichchild = INNER; set_groupcost(temp, - xfunc_join_expense((NestPath) get_pathptr(temp), + xfunc_join_expense((JoinPath) get_pathptr(temp), whichchild)); - if (primjoin = xfunc_primary_join((NestPath) get_pathptr(temp))) + if (primjoin = xfunc_primary_join((JoinPath) get_pathptr(temp))) { set_groupsel(temp, compute_clause_selec(queryInfo, @@ -529,10 +529,10 @@ xfunc_add_clauses(Stream current) } /* and add in the join clauses */ - if (IsA(get_pathptr(current), NestPath)) + if (IsA(get_pathptr(current), JoinPath)) { - primjoin = xfunc_primary_join((NestPath) get_pathptr(current)); - foreach(temp, get_pathrestrictinfo((NestPath) get_pathptr(current))) + primjoin = xfunc_primary_join((JoinPath) get_pathptr(current)); + foreach(temp, get_pathrestrictinfo((JoinPath) get_pathptr(current))) { if (!equal(get_clause((RestrictInfo) lfirst(temp)), primjoin)) topnode = xfunc_streaminsert((RestrictInfo) lfirst(temp), topnode, @@ -615,11 +615,11 @@ xfunc_streaminsert(RestrictInfo restrictinfo, static int xfunc_num_relids(Stream node) { - if (!node || !IsA(get_pathptr(node), NestPath)) + if (!node || !IsA(get_pathptr(node), JoinPath)) return 0; else return (length - (get_relids(get_parent((NestPath) get_pathptr(node))))); + (get_relids(get_parent((JoinPath) get_pathptr(node))))); } /* |