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Just about there on de-FastList-ification.
This commit is contained in:
Tom Lane
parent
962a94bb5a
commit
e590ceecf1
@ -9,7 +9,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/optimizer/path/indxpath.c,v 1.160 2004/05/30 23:40:28 neilc Exp $
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* $PostgreSQL: pgsql/src/backend/optimizer/path/indxpath.c,v 1.161 2004/06/01 04:47:45 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -237,7 +237,7 @@ create_index_paths(Query *root, RelOptInfo *rel)
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static List *
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group_clauses_by_indexkey(RelOptInfo *rel, IndexOptInfo *index)
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{
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FastList clausegroup_list;
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List *clausegroup_list = NIL;
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List *restrictinfo_list = rel->baserestrictinfo;
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int indexcol = 0;
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Oid *classes = index->classlist;
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@ -245,14 +245,12 @@ group_clauses_by_indexkey(RelOptInfo *rel, IndexOptInfo *index)
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if (restrictinfo_list == NIL)
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return NIL;
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FastListInit(&clausegroup_list);
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do
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{
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Oid curClass = classes[0];
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FastList clausegroup;
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List *clausegroup = NIL;
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ListCell *l;
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FastListInit(&clausegroup);
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foreach(l, restrictinfo_list)
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{
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RestrictInfo *rinfo = (RestrictInfo *) lfirst(l);
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@ -262,24 +260,24 @@ group_clauses_by_indexkey(RelOptInfo *rel, IndexOptInfo *index)
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indexcol,
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curClass,
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rinfo))
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FastAppend(&clausegroup, rinfo);
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clausegroup = lappend(clausegroup, rinfo);
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}
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/*
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* If no clauses match this key, we're done; we don't want to look
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* at keys to its right.
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*/
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if (FastListValue(&clausegroup) == NIL)
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if (clausegroup == NIL)
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break;
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FastAppend(&clausegroup_list, FastListValue(&clausegroup));
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clausegroup_list = lappend(clausegroup_list, clausegroup);
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indexcol++;
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classes++;
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} while (!DoneMatchingIndexKeys(classes));
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return FastListValue(&clausegroup_list);
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return clausegroup_list;
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}
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/*
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@ -301,21 +299,18 @@ group_clauses_by_indexkey_for_join(Query *root,
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Relids outer_relids,
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JoinType jointype, bool isouterjoin)
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{
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FastList clausegroup_list;
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List *clausegroup_list = NIL;
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bool jfound = false;
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int indexcol = 0;
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Oid *classes = index->classlist;
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FastListInit(&clausegroup_list);
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do
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{
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Oid curClass = classes[0];
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FastList clausegroup;
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List *clausegroup = NIL;
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int numsources;
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ListCell *l;
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FastListInit(&clausegroup);
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/*
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* We can always use plain restriction clauses for the rel. We scan
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* these first because we want them first in the clausegroup list
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@ -337,11 +332,11 @@ group_clauses_by_indexkey_for_join(Query *root,
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indexcol,
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curClass,
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rinfo))
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FastAppend(&clausegroup, rinfo);
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clausegroup = lappend(clausegroup, rinfo);
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}
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/* found anything in base restrict list? */
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numsources = (FastListValue(&clausegroup) != NIL) ? 1 : 0;
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numsources = (clausegroup != NIL) ? 1 : 0;
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/* Look for joinclauses that are usable with given outer_relids */
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foreach(l, rel->joininfo)
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@ -367,7 +362,7 @@ group_clauses_by_indexkey_for_join(Query *root,
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curClass,
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rinfo))
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{
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FastAppend(&clausegroup, rinfo);
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clausegroup = lappend(clausegroup, rinfo);
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if (!jfoundhere)
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{
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jfoundhere = true;
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@ -384,22 +379,19 @@ group_clauses_by_indexkey_for_join(Query *root,
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*/
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if (numsources > 1)
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{
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List *nl;
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nl = remove_redundant_join_clauses(root,
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FastListValue(&clausegroup),
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clausegroup = remove_redundant_join_clauses(root,
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clausegroup,
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jointype);
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FastListFromList(&clausegroup, nl);
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}
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/*
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* If no clauses match this key, we're done; we don't want to look
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* at keys to its right.
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*/
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if (FastListValue(&clausegroup) == NIL)
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if (clausegroup == NIL)
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break;
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FastAppend(&clausegroup_list, FastListValue(&clausegroup));
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clausegroup_list = lappend(clausegroup_list, clausegroup);
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indexcol++;
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classes++;
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@ -410,7 +402,7 @@ group_clauses_by_indexkey_for_join(Query *root,
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if (!jfound)
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return NIL;
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return FastListValue(&clausegroup_list);
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return clausegroup_list;
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}
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@ -438,20 +430,17 @@ group_clauses_by_indexkey_for_or(RelOptInfo *rel,
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IndexOptInfo *index,
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Expr *orsubclause)
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{
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FastList clausegroup_list;
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List *clausegroup_list = NIL;
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bool matched = false;
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int indexcol = 0;
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Oid *classes = index->classlist;
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FastListInit(&clausegroup_list);
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do
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{
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Oid curClass = classes[0];
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FastList clausegroup;
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List *clausegroup = NIL;
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ListCell *item;
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FastListInit(&clausegroup);
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/* Try to match the OR subclause to the index key */
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if (IsA(orsubclause, RestrictInfo))
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{
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@ -459,7 +448,7 @@ group_clauses_by_indexkey_for_or(RelOptInfo *rel,
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indexcol, curClass,
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(RestrictInfo *) orsubclause))
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{
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FastAppend(&clausegroup, orsubclause);
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clausegroup = lappend(clausegroup, orsubclause);
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matched = true;
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}
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}
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@ -474,7 +463,7 @@ group_clauses_by_indexkey_for_or(RelOptInfo *rel,
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indexcol, curClass,
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subsubclause))
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{
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FastAppend(&clausegroup, subsubclause);
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clausegroup = lappend(clausegroup, subsubclause);
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matched = true;
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}
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}
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@ -487,7 +476,7 @@ group_clauses_by_indexkey_for_or(RelOptInfo *rel,
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* XXX should we always search the top-level list? Slower but
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* could sometimes yield a better plan.
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*/
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if (FastListValue(&clausegroup) == NIL)
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if (clausegroup == NIL)
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{
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foreach(item, rel->baserestrictinfo)
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{
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@ -496,7 +485,7 @@ group_clauses_by_indexkey_for_or(RelOptInfo *rel,
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if (match_clause_to_indexcol(rel, index,
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indexcol, curClass,
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rinfo))
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FastAppend(&clausegroup, rinfo);
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clausegroup = lappend(clausegroup, rinfo);
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}
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}
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@ -504,10 +493,10 @@ group_clauses_by_indexkey_for_or(RelOptInfo *rel,
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* If still no clauses match this key, we're done; we don't want
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* to look at keys to its right.
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*/
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if (FastListValue(&clausegroup) == NIL)
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if (clausegroup == NIL)
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break;
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FastAppend(&clausegroup_list, FastListValue(&clausegroup));
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clausegroup_list = lappend(clausegroup_list, clausegroup);
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indexcol++;
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classes++;
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@ -517,7 +506,7 @@ group_clauses_by_indexkey_for_or(RelOptInfo *rel,
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if (!matched)
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return NIL;
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return FastListValue(&clausegroup_list);
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return clausegroup_list;
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}
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@ -2011,14 +2000,13 @@ match_special_index_operator(Expr *clause, Oid opclass,
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List *
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expand_indexqual_conditions(IndexOptInfo *index, List *clausegroups)
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{
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FastList resultquals;
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List *resultquals = NIL;
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ListCell *clausegroup_item;
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Oid *classes = index->classlist;
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if (clausegroups == NIL)
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return NIL;
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FastListInit(&resultquals);
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clausegroup_item = list_head(clausegroups);
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do
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{
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@ -2029,17 +2017,18 @@ expand_indexqual_conditions(IndexOptInfo *index, List *clausegroups)
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{
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RestrictInfo *rinfo = (RestrictInfo *) lfirst(l);
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FastConc(&resultquals,
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expand_indexqual_condition(rinfo, curClass));
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resultquals = list_concat(resultquals,
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expand_indexqual_condition(rinfo,
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curClass));
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}
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clausegroup_item = lnext(clausegroup_item);
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classes++;
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} while (clausegroup_item != NULL && !DoneMatchingIndexKeys(classes));
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Assert(clausegroup_item == NULL); /* else more groups than indexkeys... */
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Assert(clausegroup_item == NULL); /* else more groups than indexkeys */
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return FastListValue(&resultquals);
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return resultquals;
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}
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/*
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/optimizer/path/orindxpath.c,v 1.59 2004/05/30 23:40:28 neilc Exp $
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* $PostgreSQL: pgsql/src/backend/optimizer/path/orindxpath.c,v 1.60 2004/06/01 04:47:45 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -243,20 +243,14 @@ best_or_subclause_indexes(Query *root,
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RelOptInfo *rel,
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List *subclauses)
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{
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FastList infos;
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FastList clauses;
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FastList quals;
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Cost path_startup_cost;
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Cost path_total_cost;
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List *infos = NIL;
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List *clauses = NIL;
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List *quals = NIL;
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Cost path_startup_cost = 0;
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Cost path_total_cost = 0;
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ListCell *slist;
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IndexPath *pathnode;
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FastListInit(&infos);
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FastListInit(&clauses);
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FastListInit(&quals);
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path_startup_cost = 0;
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path_total_cost = 0;
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/* Gather info for each OR subclause */
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foreach(slist, subclauses)
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{
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@ -273,9 +267,9 @@ best_or_subclause_indexes(Query *root,
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&best_startup_cost, &best_total_cost))
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return NULL; /* failed to match this subclause */
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FastAppend(&infos, best_indexinfo);
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FastAppend(&clauses, best_indexclauses);
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FastAppend(&quals, best_indexquals);
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infos = lappend(infos, best_indexinfo);
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clauses = lappend(clauses, best_indexclauses);
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quals = lappend(quals, best_indexquals);
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/*
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* Path startup_cost is the startup cost for the first index scan only;
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* startup costs for later scans will be paid later on, so they just
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@ -303,9 +297,9 @@ best_or_subclause_indexes(Query *root,
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*/
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pathnode->path.pathkeys = NIL;
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pathnode->indexinfo = FastListValue(&infos);
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pathnode->indexclauses = FastListValue(&clauses);
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pathnode->indexquals = FastListValue(&quals);
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pathnode->indexinfo = infos;
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pathnode->indexclauses = clauses;
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pathnode->indexquals = quals;
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/* It's not an innerjoin path. */
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pathnode->isjoininner = false;
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/optimizer/prep/prepqual.c,v 1.43 2004/05/30 23:40:29 neilc Exp $
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* $PostgreSQL: pgsql/src/backend/optimizer/prep/prepqual.c,v 1.44 2004/06/01 04:47:45 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -22,12 +22,8 @@
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static Node *flatten_andors_mutator(Node *node, void *context);
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static void flatten_andors_and_walker(FastList *out_list, List *andlist);
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static void flatten_andors_or_walker(FastList *out_list, List *orlist);
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static List *pull_ands(List *andlist);
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static void pull_ands_walker(FastList *out_list, List *andlist);
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static List *pull_ors(List *orlist);
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static void pull_ors_walker(FastList *out_list, List *orlist);
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static Expr *find_nots(Expr *qual);
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static Expr *push_nots(Expr *qual);
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static Expr *find_duplicate_ors(Expr *qual);
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@ -122,57 +118,55 @@ flatten_andors_mutator(Node *node, void *context)
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if (bexpr->boolop == AND_EXPR)
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{
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FastList out_list;
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List *out_list = NIL;
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ListCell *arg;
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FastListInit(&out_list);
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flatten_andors_and_walker(&out_list, bexpr->args);
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return (Node *) make_andclause(FastListValue(&out_list));
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foreach(arg, bexpr->args)
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{
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Node *subexpr = flatten_andors((Node *) lfirst(arg));
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/*
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* Note: we can destructively concat the subexpression's
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* arglist because we know the recursive invocation of
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* flatten_andors will have built a new arglist not shared
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* with any other expr. Otherwise we'd need a list_copy here.
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*/
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if (and_clause(subexpr))
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out_list = list_concat(out_list,
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((BoolExpr *) subexpr)->args);
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else
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out_list = lappend(out_list, subexpr);
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}
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return (Node *) make_andclause(out_list);
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}
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if (bexpr->boolop == OR_EXPR)
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{
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FastList out_list;
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List *out_list = NIL;
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ListCell *arg;
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FastListInit(&out_list);
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flatten_andors_or_walker(&out_list, bexpr->args);
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return (Node *) make_orclause(FastListValue(&out_list));
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foreach(arg, bexpr->args)
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{
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Node *subexpr = flatten_andors((Node *) lfirst(arg));
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/*
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* Note: we can destructively concat the subexpression's
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* arglist because we know the recursive invocation of
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* flatten_andors will have built a new arglist not shared
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* with any other expr. Otherwise we'd need a list_copy here.
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*/
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if (or_clause(subexpr))
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out_list = list_concat(out_list,
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((BoolExpr *) subexpr)->args);
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else
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out_list = lappend(out_list, subexpr);
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}
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return (Node *) make_orclause(out_list);
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}
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/* else it's a NOT clause, fall through */
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}
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return expression_tree_mutator(node, flatten_andors_mutator, context);
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}
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static void
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flatten_andors_and_walker(FastList *out_list, List *andlist)
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{
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ListCell *arg;
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foreach(arg, andlist)
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{
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Node *subexpr = (Node *) lfirst(arg);
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if (and_clause(subexpr))
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flatten_andors_and_walker(out_list, ((BoolExpr *) subexpr)->args);
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else
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FastAppend(out_list, flatten_andors(subexpr));
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}
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}
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static void
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flatten_andors_or_walker(FastList *out_list, List *orlist)
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{
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ListCell *arg;
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foreach(arg, orlist)
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{
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Node *subexpr = (Node *) lfirst(arg);
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if (or_clause(subexpr))
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flatten_andors_or_walker(out_list, ((BoolExpr *) subexpr)->args);
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else
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FastAppend(out_list, flatten_andors(subexpr));
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}
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}
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/*
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* pull_ands
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* Recursively flatten nested AND clauses into a single and-clause list.
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@ -183,27 +177,26 @@ flatten_andors_or_walker(FastList *out_list, List *orlist)
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static List *
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pull_ands(List *andlist)
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{
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FastList out_list;
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FastListInit(&out_list);
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pull_ands_walker(&out_list, andlist);
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return FastListValue(&out_list);
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}
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static void
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pull_ands_walker(FastList *out_list, List *andlist)
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{
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List *out_list = NIL;
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ListCell *arg;
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foreach(arg, andlist)
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{
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Node *subexpr = (Node *) lfirst(arg);
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/*
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* Note: we can destructively concat the subexpression's arglist
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* because we know the recursive invocation of pull_ands will have
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* built a new arglist not shared with any other expr. Otherwise
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* we'd need a list_copy here.
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*/
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if (and_clause(subexpr))
|
||||
pull_ands_walker(out_list, ((BoolExpr *) subexpr)->args);
|
||||
out_list = list_concat(out_list,
|
||||
pull_ands(((BoolExpr *) subexpr)->args));
|
||||
else
|
||||
FastAppend(out_list, subexpr);
|
||||
out_list = lappend(out_list, subexpr);
|
||||
}
|
||||
return out_list;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -216,27 +209,26 @@ pull_ands_walker(FastList *out_list, List *andlist)
|
||||
static List *
|
||||
pull_ors(List *orlist)
|
||||
{
|
||||
FastList out_list;
|
||||
|
||||
FastListInit(&out_list);
|
||||
pull_ors_walker(&out_list, orlist);
|
||||
return FastListValue(&out_list);
|
||||
}
|
||||
|
||||
static void
|
||||
pull_ors_walker(FastList *out_list, List *orlist)
|
||||
{
|
||||
List *out_list = NIL;
|
||||
ListCell *arg;
|
||||
|
||||
foreach(arg, orlist)
|
||||
{
|
||||
Node *subexpr = (Node *) lfirst(arg);
|
||||
|
||||
/*
|
||||
* Note: we can destructively concat the subexpression's arglist
|
||||
* because we know the recursive invocation of pull_ors will have
|
||||
* built a new arglist not shared with any other expr. Otherwise
|
||||
* we'd need a list_copy here.
|
||||
*/
|
||||
if (or_clause(subexpr))
|
||||
pull_ors_walker(out_list, ((BoolExpr *) subexpr)->args);
|
||||
out_list = list_concat(out_list,
|
||||
pull_ors(((BoolExpr *) subexpr)->args));
|
||||
else
|
||||
FastAppend(out_list, subexpr);
|
||||
out_list = lappend(out_list, subexpr);
|
||||
}
|
||||
return out_list;
|
||||
}
|
||||
|
||||
|
||||
@ -257,23 +249,21 @@ find_nots(Expr *qual)
|
||||
|
||||
if (and_clause((Node *) qual))
|
||||
{
|
||||
FastList t_list;
|
||||
List *t_list = NIL;
|
||||
ListCell *temp;
|
||||
|
||||
FastListInit(&t_list);
|
||||
foreach(temp, ((BoolExpr *) qual)->args)
|
||||
FastAppend(&t_list, find_nots(lfirst(temp)));
|
||||
return make_andclause(pull_ands(FastListValue(&t_list)));
|
||||
t_list = lappend(t_list, find_nots(lfirst(temp)));
|
||||
return make_andclause(pull_ands(t_list));
|
||||
}
|
||||
else if (or_clause((Node *) qual))
|
||||
{
|
||||
FastList t_list;
|
||||
List *t_list = NIL;
|
||||
ListCell *temp;
|
||||
|
||||
FastListInit(&t_list);
|
||||
foreach(temp, ((BoolExpr *) qual)->args)
|
||||
FastAppend(&t_list, find_nots(lfirst(temp)));
|
||||
return make_orclause(pull_ors(FastListValue(&t_list)));
|
||||
t_list = lappend(t_list, find_nots(lfirst(temp)));
|
||||
return make_orclause(pull_ors(t_list));
|
||||
}
|
||||
else if (not_clause((Node *) qual))
|
||||
return push_nots(get_notclausearg(qual));
|
||||
@ -323,23 +313,21 @@ push_nots(Expr *qual)
|
||||
* i.e., swap AND for OR and negate all the subclauses.
|
||||
*--------------------
|
||||
*/
|
||||
FastList t_list;
|
||||
List *t_list = NIL;
|
||||
ListCell *temp;
|
||||
|
||||
FastListInit(&t_list);
|
||||
foreach(temp, ((BoolExpr *) qual)->args)
|
||||
FastAppend(&t_list, push_nots(lfirst(temp)));
|
||||
return make_orclause(pull_ors(FastListValue(&t_list)));
|
||||
t_list = lappend(t_list, push_nots(lfirst(temp)));
|
||||
return make_orclause(pull_ors(t_list));
|
||||
}
|
||||
else if (or_clause((Node *) qual))
|
||||
{
|
||||
FastList t_list;
|
||||
List *t_list = NIL;
|
||||
ListCell *temp;
|
||||
|
||||
FastListInit(&t_list);
|
||||
foreach(temp, ((BoolExpr *) qual)->args)
|
||||
FastAppend(&t_list, push_nots(lfirst(temp)));
|
||||
return make_andclause(pull_ands(FastListValue(&t_list)));
|
||||
t_list = lappend(t_list, push_nots(lfirst(temp)));
|
||||
return make_andclause(pull_ands(t_list));
|
||||
}
|
||||
else if (not_clause((Node *) qual))
|
||||
{
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.172 2004/05/30 23:40:30 neilc Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.173 2004/06/01 04:47:45 tgl Exp $
|
||||
*
|
||||
* HISTORY
|
||||
* AUTHOR DATE MAJOR EVENT
|
||||
@ -846,24 +846,21 @@ is_pseudo_constant_clause_relids(Node *clause, Relids relids)
|
||||
List *
|
||||
pull_constant_clauses(List *quals, List **constantQual)
|
||||
{
|
||||
FastList constqual,
|
||||
restqual;
|
||||
List *constqual = NIL,
|
||||
*restqual = NIL;
|
||||
ListCell *q;
|
||||
|
||||
FastListInit(&constqual);
|
||||
FastListInit(&restqual);
|
||||
|
||||
foreach(q, quals)
|
||||
{
|
||||
Node *qual = (Node *) lfirst(q);
|
||||
|
||||
if (is_pseudo_constant_clause(qual))
|
||||
FastAppend(&constqual, qual);
|
||||
constqual = lappend(constqual, qual);
|
||||
else
|
||||
FastAppend(&restqual, qual);
|
||||
restqual = lappend(restqual, qual);
|
||||
}
|
||||
*constantQual = FastListValue(&constqual);
|
||||
return FastListValue(&restqual);
|
||||
*constantQual = constqual;
|
||||
return restqual;
|
||||
}
|
||||
|
||||
|
||||
@ -1411,7 +1408,7 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
CaseExpr *caseexpr = (CaseExpr *) node;
|
||||
CaseExpr *newcase;
|
||||
Node *newarg;
|
||||
FastList newargs;
|
||||
List *newargs;
|
||||
Node *defresult;
|
||||
Const *const_input;
|
||||
ListCell *arg;
|
||||
@ -1421,7 +1418,7 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
active_fns);
|
||||
|
||||
/* Simplify the WHEN clauses */
|
||||
FastListInit(&newargs);
|
||||
newargs = NIL;
|
||||
foreach(arg, caseexpr->args)
|
||||
{
|
||||
/* Simplify this alternative's condition and result */
|
||||
@ -1434,7 +1431,7 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
if (casewhen->expr == NULL ||
|
||||
!IsA(casewhen->expr, Const))
|
||||
{
|
||||
FastAppend(&newargs, casewhen);
|
||||
newargs = lappend(newargs, casewhen);
|
||||
continue;
|
||||
}
|
||||
const_input = (Const *) casewhen->expr;
|
||||
@ -1446,13 +1443,13 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
* Found a TRUE condition. If it's the first (un-dropped)
|
||||
* alternative, the CASE reduces to just this alternative.
|
||||
*/
|
||||
if (FastListValue(&newargs) == NIL)
|
||||
if (newargs == NIL)
|
||||
return (Node *) casewhen->result;
|
||||
|
||||
/*
|
||||
* Otherwise, add it to the list, and drop all the rest.
|
||||
*/
|
||||
FastAppend(&newargs, casewhen);
|
||||
newargs = lappend(newargs, casewhen);
|
||||
break;
|
||||
}
|
||||
|
||||
@ -1464,13 +1461,13 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
* If no non-FALSE alternatives, CASE reduces to the default
|
||||
* result
|
||||
*/
|
||||
if (FastListValue(&newargs) == NIL)
|
||||
if (newargs == NIL)
|
||||
return defresult;
|
||||
/* Otherwise we need a new CASE node */
|
||||
newcase = makeNode(CaseExpr);
|
||||
newcase->casetype = caseexpr->casetype;
|
||||
newcase->arg = (Expr *) newarg;
|
||||
newcase->args = FastListValue(&newargs);
|
||||
newcase->args = newargs;
|
||||
newcase->defresult = (Expr *) defresult;
|
||||
return (Node *) newcase;
|
||||
}
|
||||
@ -1479,10 +1476,10 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
ArrayExpr *arrayexpr = (ArrayExpr *) node;
|
||||
ArrayExpr *newarray;
|
||||
bool all_const = true;
|
||||
FastList newelems;
|
||||
List *newelems;
|
||||
ListCell *element;
|
||||
|
||||
FastListInit(&newelems);
|
||||
newelems = NIL;
|
||||
foreach(element, arrayexpr->elements)
|
||||
{
|
||||
Node *e;
|
||||
@ -1491,13 +1488,13 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
active_fns);
|
||||
if (!IsA(e, Const))
|
||||
all_const = false;
|
||||
FastAppend(&newelems, e);
|
||||
newelems = lappend(newelems, e);
|
||||
}
|
||||
|
||||
newarray = makeNode(ArrayExpr);
|
||||
newarray->array_typeid = arrayexpr->array_typeid;
|
||||
newarray->element_typeid = arrayexpr->element_typeid;
|
||||
newarray->elements = FastListValue(&newelems);
|
||||
newarray->elements = newelems;
|
||||
newarray->multidims = arrayexpr->multidims;
|
||||
|
||||
if (all_const)
|
||||
@ -1510,10 +1507,10 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
{
|
||||
CoalesceExpr *coalesceexpr = (CoalesceExpr *) node;
|
||||
CoalesceExpr *newcoalesce;
|
||||
FastList newargs;
|
||||
List *newargs;
|
||||
ListCell *arg;
|
||||
|
||||
FastListInit(&newargs);
|
||||
newargs = NIL;
|
||||
foreach(arg, coalesceexpr->args)
|
||||
{
|
||||
Node *e;
|
||||
@ -1530,15 +1527,15 @@ eval_const_expressions_mutator(Node *node, List *active_fns)
|
||||
{
|
||||
if (((Const *) e)->constisnull)
|
||||
continue; /* drop null constant */
|
||||
if (FastListValue(&newargs) == NIL)
|
||||
if (newargs == NIL)
|
||||
return e; /* first expr */
|
||||
}
|
||||
FastAppend(&newargs, e);
|
||||
newargs = lappend(newargs, e);
|
||||
}
|
||||
|
||||
newcoalesce = makeNode(CoalesceExpr);
|
||||
newcoalesce->coalescetype = coalesceexpr->coalescetype;
|
||||
newcoalesce->args = FastListValue(&newargs);
|
||||
newcoalesce->args = newargs;
|
||||
return (Node *) newcoalesce;
|
||||
}
|
||||
if (IsA(node, FieldSelect))
|
||||
@ -2971,16 +2968,17 @@ expression_tree_mutator(Node *node,
|
||||
* NOTE: this would fail badly on a list with integer
|
||||
* elements!
|
||||
*/
|
||||
FastList resultlist;
|
||||
List *resultlist;
|
||||
ListCell *temp;
|
||||
|
||||
FastListInit(&resultlist);
|
||||
resultlist = NIL;
|
||||
foreach(temp, (List *) node)
|
||||
{
|
||||
FastAppend(&resultlist,
|
||||
mutator((Node *) lfirst(temp), context));
|
||||
resultlist = lappend(resultlist,
|
||||
mutator((Node *) lfirst(temp),
|
||||
context));
|
||||
}
|
||||
return (Node *) FastListValue(&resultlist);
|
||||
return (Node *) resultlist;
|
||||
}
|
||||
break;
|
||||
case T_FromExpr:
|
||||
@ -3063,7 +3061,7 @@ query_tree_mutator(Query *query,
|
||||
void *context,
|
||||
int flags)
|
||||
{
|
||||
FastList newrt;
|
||||
List *newrt;
|
||||
ListCell *rt;
|
||||
|
||||
Assert(query != NULL && IsA(query, Query));
|
||||
@ -3083,7 +3081,7 @@ query_tree_mutator(Query *query,
|
||||
MUTATE(query->limitOffset, query->limitOffset, Node *);
|
||||
MUTATE(query->limitCount, query->limitCount, Node *);
|
||||
MUTATE(query->in_info_list, query->in_info_list, List *);
|
||||
FastListInit(&newrt);
|
||||
newrt = NIL;
|
||||
foreach(rt, query->rtable)
|
||||
{
|
||||
RangeTblEntry *rte = (RangeTblEntry *) lfirst(rt);
|
||||
@ -3113,9 +3111,9 @@ query_tree_mutator(Query *query,
|
||||
MUTATE(newrte->funcexpr, rte->funcexpr, Node *);
|
||||
break;
|
||||
}
|
||||
FastAppend(&newrt, newrte);
|
||||
newrt = lappend(newrt, newrte);
|
||||
}
|
||||
query->rtable = FastListValue(&newrt);
|
||||
query->rtable = newrt;
|
||||
return query;
|
||||
}
|
||||
|
||||
|
||||
@ -9,7 +9,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.93 2004/05/30 23:40:31 neilc Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.94 2004/06/01 04:47:45 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -192,12 +192,10 @@ build_physical_tlist(Query *root, RelOptInfo *rel)
|
||||
Index varno = rel->relid;
|
||||
RangeTblEntry *rte = rt_fetch(varno, root->rtable);
|
||||
Relation relation;
|
||||
FastList tlist;
|
||||
List *tlist = NIL;
|
||||
int attrno,
|
||||
numattrs;
|
||||
|
||||
FastListInit(&tlist);
|
||||
|
||||
Assert(rte->rtekind == RTE_RELATION);
|
||||
|
||||
relation = heap_open(rte->relid, AccessShareLock);
|
||||
@ -211,11 +209,11 @@ build_physical_tlist(Query *root, RelOptInfo *rel)
|
||||
if (att_tup->attisdropped)
|
||||
{
|
||||
/* found a dropped col, so punt */
|
||||
FastListInit(&tlist);
|
||||
tlist = NIL;
|
||||
break;
|
||||
}
|
||||
|
||||
FastAppend(&tlist,
|
||||
tlist = lappend(tlist,
|
||||
create_tl_element(makeVar(varno,
|
||||
attrno,
|
||||
att_tup->atttypid,
|
||||
@ -226,7 +224,7 @@ build_physical_tlist(Query *root, RelOptInfo *rel)
|
||||
|
||||
heap_close(relation, AccessShareLock);
|
||||
|
||||
return FastListValue(&tlist);
|
||||
return tlist;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/var.c,v 1.58 2004/05/30 23:40:31 neilc Exp $
|
||||
* $PostgreSQL: pgsql/src/backend/optimizer/util/var.c,v 1.59 2004/06/01 04:47:46 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -43,7 +43,7 @@ typedef struct
|
||||
|
||||
typedef struct
|
||||
{
|
||||
FastList varlist;
|
||||
List *varlist;
|
||||
bool includeUpperVars;
|
||||
} pull_var_clause_context;
|
||||
|
||||
@ -446,11 +446,11 @@ pull_var_clause(Node *node, bool includeUpperVars)
|
||||
{
|
||||
pull_var_clause_context context;
|
||||
|
||||
FastListInit(&context.varlist);
|
||||
context.varlist = NIL;
|
||||
context.includeUpperVars = includeUpperVars;
|
||||
|
||||
pull_var_clause_walker(node, &context);
|
||||
return FastListValue(&context.varlist);
|
||||
return context.varlist;
|
||||
}
|
||||
|
||||
static bool
|
||||
@ -461,7 +461,7 @@ pull_var_clause_walker(Node *node, pull_var_clause_context *context)
|
||||
if (IsA(node, Var))
|
||||
{
|
||||
if (((Var *) node)->varlevelsup == 0 || context->includeUpperVars)
|
||||
FastAppend(&context->varlist, node);
|
||||
context->varlist = lappend(context->varlist, node);
|
||||
return false;
|
||||
}
|
||||
return expression_tree_walker(node, pull_var_clause_walker,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user