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https://git.postgresql.org/git/postgresql.git
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Add Var.varlevelup to code. More parser cleanup.
This commit is contained in:
Bruce Momjian
parent
412a5e6539
commit
7f31669bea
@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/commands/Attic/recipe.c,v 1.17 1998/01/05 16:38:57 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/commands/Attic/recipe.c,v 1.18 1998/01/20 22:10:53 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -494,6 +494,7 @@ tg_replaceNumberedParam(Node *expression,
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newVar = makeVar(rt_ind,
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0, /* the whole tuple */
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TypeGet(teeRelName, &defined),
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0,
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rt_ind,
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0);
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return (Node *) newVar;
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@ -503,6 +504,7 @@ tg_replaceNumberedParam(Node *expression,
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1, /* just the first field,
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* which is 'result' */
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TypeGet(teeRelName, &defined),
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0,
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rt_ind,
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0);
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return (Node *) newVar;
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.34 1998/01/20 05:03:40 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.35 1998/01/20 22:10:58 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -671,6 +671,7 @@ _copyVar(Var *from)
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newnode->varno = from->varno;
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newnode->varattno = from->varattno;
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newnode->vartype = from->vartype;
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newnode->varlevelsup = from->varlevelsup;
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newnode->varnoold = from->varnoold;
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newnode->varoattno = from->varoattno;
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.12 1998/01/07 21:03:26 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.13 1998/01/20 22:11:02 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -129,6 +129,8 @@ _equalVar(Var *a, Var *b)
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return (false);
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if (a->vartype != b->vartype)
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return (false);
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if (a->varlevelsup != b->varlevelsup)
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return (false);
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if (a->varnoold != b->varnoold)
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return (false);
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if (a->varoattno != b->varoattno)
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/nodes/makefuncs.c,v 1.4 1997/09/08 02:23:39 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/nodes/makefuncs.c,v 1.5 1998/01/20 22:11:05 momjian Exp $
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*
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* NOTES
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* Creator functions in POSTGRES 4.2 are generated automatically. Most of
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@ -53,6 +53,7 @@ Var *
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makeVar(Index varno,
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AttrNumber varattno,
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Oid vartype,
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Index varlevelsup,
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Index varnoold,
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AttrNumber varoattno)
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{
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@ -61,6 +62,7 @@ makeVar(Index varno,
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var->varno = varno;
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var->varattno = varattno;
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var->vartype = vartype;
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var->varlevelsup = varlevelsup;
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var->varnoold = varnoold;
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var->varoattno = varoattno;
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.25 1998/01/20 05:03:49 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.26 1998/01/20 22:11:12 momjian Exp $
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*
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* NOTES
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* Every (plan) node in POSTGRES has an associated "out" routine which
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@ -698,6 +698,8 @@ _outVar(StringInfo str, Var *node)
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appendStringInfo(str, buf);
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sprintf(buf, " :vartype %u ", node->vartype);
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appendStringInfo(str, buf);
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sprintf(buf, " :varlevelsup %u ", node->varlevelsup);
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appendStringInfo(str, buf);
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sprintf(buf, " :varnoold %d ", node->varnoold);
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appendStringInfo(str, buf);
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sprintf(buf, " :varoattno %d ", node->varoattno);
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.21 1998/01/20 05:03:57 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.22 1998/01/20 22:11:15 momjian Exp $
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*
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* NOTES
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* Most of the read functions for plan nodes are tested. (In fact, they
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@ -814,6 +814,10 @@ _readVar()
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token = lsptok(NULL, &length); /* get vartype */
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local_node->vartype = (Oid) atol(token);
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token = lsptok(NULL, &length); /* eat :varlevelsup */
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token = lsptok(NULL, &length); /* get varlevelsup */
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local_node->varlevelsup = (Oid) atol(token);
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token = lsptok(NULL, &length); /* eat :varnoold */
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token = lsptok(NULL, &length); /* get varnoold */
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local_node->varnoold = (Oid) atol(token);
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.23 1998/01/15 18:59:37 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/createplan.c,v 1.24 1998/01/20 22:11:25 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -701,6 +701,7 @@ fix_indxqual_references(Node *clause, Path *index_path)
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makeVar((Index) lfirsti(index_path->parent->relids),
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1, /* func indices have one key */
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((Func *) ((Expr *) clause)->oper)->functype,
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0,
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(Index) lfirsti(index_path->parent->relids),
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0);
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.8 1997/09/08 21:45:19 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/initsplan.c,v 1.9 1998/01/20 22:11:27 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -116,7 +116,7 @@ add_missing_vars_to_base_rels(Query *root, List *tlist)
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!rel_member(relids, root->base_relation_list_))
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{
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var = makeVar(varno, -2, 26, varno, -2);
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var = makeVar(varno, -2, 26, 0, varno, -2);
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/* add it to base_relation_list_ */
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result = get_base_rel(root, varno);
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add_tl_element(result, var);
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planmain.c,v 1.16 1998/01/15 18:59:44 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planmain.c,v 1.17 1998/01/20 22:11:29 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -464,7 +464,7 @@ make_groupPlan(List **tlist,
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else
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te->expr = (Node *) makeVar(1, resdom->resno,
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resdom->restype,
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-1, resdom->resno);
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0, -1, resdom->resno);
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}
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sortplan = make_sort(sort_tlist,
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.15 1998/01/15 18:59:50 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/setrefs.c,v 1.16 1998/01/20 22:11:32 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -440,6 +440,7 @@ replace_joinvar_refs(Var *var, List *outer_tlist, List *inner_tlist)
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return (makeVar(OUTER,
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outer_resdom->resno,
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var->vartype,
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0,
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var->varnoold,
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var->varoattno));
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}
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@ -453,6 +454,7 @@ replace_joinvar_refs(Var *var, List *outer_tlist, List *inner_tlist)
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return (makeVar(INNER,
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inner_resdom->resno,
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var->vartype,
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0,
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var->varnoold,
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var->varoattno));
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}
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@ -497,6 +499,7 @@ tlist_temp_references(Oid tempid,
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(Node *) makeVar(tempid,
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xtl->resdom->resno,
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xtl->resdom->restype,
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0,
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tempid,
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oattno));
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.7 1998/01/16 23:20:09 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.8 1998/01/20 22:11:34 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -114,7 +114,7 @@ preprocess_targetlist(List *tlist,
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0,
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1);
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var = makeVar(result_relation, -1, 27, result_relation, -1);
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var = makeVar(result_relation, -1, 27, 0, result_relation, -1);
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ctid = makeNode(TargetEntry);
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ctid->resdom = resdom;
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@ -322,7 +322,7 @@ new_relation_targetlist(Oid relid, Index rt_index, NodeTag node_type)
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TargetEntry *temp_list = NULL;
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temp_var =
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makeVar(rt_index, attno, atttype, rt_index, attno);
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makeVar(rt_index, attno, atttype, 0, rt_index, attno);
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temp_list = MakeTLE(makeResdom(attno,
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atttype,
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.13 1997/12/22 05:42:14 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.14 1998/01/20 22:11:39 momjian Exp $
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*
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* HISTORY
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* AUTHOR DATE MAJOR EVENT
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@ -377,7 +377,8 @@ clause_relids_vars(Node *clause, List **relids, List **vars)
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Var *in_list = (Var *) lfirst(vi);
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if (in_list->varno == var->varno &&
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in_list->varattno == var->varattno)
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in_list->varattno == var->varattno &&
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in_list->varlevelsup == var->varlevelsup)
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break;
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}
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if (vi == NIL)
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/util/tlist.c,v 1.8 1997/11/25 22:00:16 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/util/tlist.c,v 1.9 1998/01/20 22:11:41 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -108,6 +108,7 @@ add_tl_element(Rel *rel, Var *var)
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Var *newvar = makeVar(var->varno,
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var->varattno,
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var->vartype,
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var->varlevelsup,
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var->varno,
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var->varoattno);
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@ -287,7 +288,8 @@ match_varid(Var *test_var, List *tlist)
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* changed to INNER/OUTER.
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*/
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if (tlvar->varnoold == test_var->varnoold &&
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tlvar->varoattno == test_var->varoattno)
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tlvar->varoattno == test_var->varoattno &&
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tlvar->varlevelsup == test_var->varlevelsup)
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{
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if (tlvar->vartype == type_var)
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/optimizer/util/var.c,v 1.7 1997/12/22 05:42:16 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/optimizer/util/var.c,v 1.8 1998/01/20 22:11:43 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -209,6 +209,7 @@ var_equal(Var *var1, Var *var2)
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if (IsA(var1, Var) &&IsA(var2, Var) &&
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(((Var *) var1)->varno == ((Var *) var2)->varno) &&
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(((Var *) var1)->vartype == ((Var *) var2)->vartype) &&
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(((Var *) var1)->varlevelsup == ((Var *) var2)->varlevelsup) &&
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(((Var *) var1)->varattno == ((Var *) var2)->varattno))
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{
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@ -12,7 +12,7 @@ parse_clause.c handle clauses like WHERE, ORDER BY, GROUP BY, ...
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parse_expr.c handle expressions like col, col + 3, x = 3 or x = 4
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parse_oper.c handle operations in expressions
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parse_agg.c handle aggregates, like SUM(col1), AVG(col2), ...
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parse_func.c handle functions like date_part(col3), trim(col4), ...
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parse_func.c handle functions, table.column and column identifiers
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parse_node.c create nodes for various structures
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parse_target.c handle the result list of the query
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.67 1998/01/20 05:04:05 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.68 1998/01/20 22:11:51 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -219,7 +219,7 @@ transformDeleteStmt(ParseState *pstate, DeleteStmt *stmt)
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qry->qual = transformWhereClause(pstate, stmt->whereClause);
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qry->rtable = pstate->p_rtable;
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qry->resultRelation = refnameRangeTablePosn(pstate->p_rtable, stmt->relname);
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qry->resultRelation = refnameRangeTablePosn(pstate, stmt->relname, NULL);
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qry->hasAggs = pstate->p_hasAggs;
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if (pstate->p_hasAggs)
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@ -320,7 +320,7 @@ transformInsertStmt(ParseState *pstate, InsertStmt *stmt)
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/* now the range table will not change */
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qry->rtable = pstate->p_rtable;
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qry->resultRelation = refnameRangeTablePosn(pstate->p_rtable, stmt->relname);
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qry->resultRelation = refnameRangeTablePosn(pstate, stmt->relname, NULL);
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qry->groupClause = transformGroupClause(pstate,
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stmt->groupClause,
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@ -816,7 +816,7 @@ transformUpdateStmt(ParseState *pstate, UpdateStmt *stmt)
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qry->rtable = pstate->p_rtable;
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qry->resultRelation = refnameRangeTablePosn(pstate->p_rtable, stmt->relname);
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qry->resultRelation = refnameRangeTablePosn(pstate, stmt->relname, NULL);
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qry->hasAggs = pstate->p_hasAggs;
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if (pstate->p_hasAggs)
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/parser/parse_clause.c,v 1.10 1998/01/20 05:04:12 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/parse_clause.c,v 1.11 1998/01/20 22:11:53 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -39,16 +39,15 @@ void
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makeRangeTable(ParseState *pstate, char *relname, List *frmList)
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{
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RangeTblEntry *rte;
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parseFromClause(pstate, frmList);
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if (relname == NULL)
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return;
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if (refnameRangeTablePosn(pstate->p_rtable, relname) < 1)
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rte = addRangeTableEntry(pstate, relname, relname, FALSE, FALSE);
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else
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rte = refnameRangeTableEntry(pstate->p_rtable, relname);
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Assert(pstate->p_rtable == NULL);
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rte = addRangeTableEntry(pstate, relname, relname, FALSE, FALSE);
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pstate->p_target_rangetblentry = rte;
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Assert(pstate->p_target_relation == NULL);
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@ -137,8 +136,7 @@ find_targetlist_entry(ParseState *pstate, SortGroupBy *sortgroupby, List *tlist)
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TargetEntry *target_result = NULL;
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if (sortgroupby->range)
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real_rtable_pos = refnameRangeTablePosn(pstate->p_rtable,
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sortgroupby->range);
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real_rtable_pos = refnameRangeTablePosn(pstate, sortgroupby->range, NULL);
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foreach(i, tlist)
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{
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@ -7,7 +7,7 @@
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*
|
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*
|
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* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.11 1998/01/20 05:04:14 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.12 1998/01/20 22:11:55 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -304,6 +304,7 @@ transformIdent(ParseState *pstate, Node *expr, int precedence)
|
||||
{
|
||||
Attr *att = makeNode(Attr);
|
||||
|
||||
/* we add the relation name for them */
|
||||
att->relname = rte->refname;
|
||||
att->attrs = lcons(makeString(ident->name), NIL);
|
||||
column_result =
|
||||
@ -312,7 +313,7 @@ transformIdent(ParseState *pstate, Node *expr, int precedence)
|
||||
}
|
||||
|
||||
/* try to find the ident as a relation */
|
||||
if (refnameRangeTableEntry(pstate->p_rtable, ident->name) != NULL)
|
||||
if (refnameRangeTableEntry(pstate, ident->name) != NULL)
|
||||
{
|
||||
ident->isRel = TRUE;
|
||||
relation_result = (Node *) ident;
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.7 1998/01/20 05:04:16 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.8 1998/01/20 22:11:55 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -174,13 +174,12 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
|
||||
{
|
||||
RangeTblEntry *rte;
|
||||
Ident *ident = (Ident *) first_arg;
|
||||
|
||||
/*
|
||||
* first arg is a relation. This could be a projection.
|
||||
*/
|
||||
refname = ident->name;
|
||||
|
||||
rte = refnameRangeTableEntry(pstate->p_rtable, refname);
|
||||
rte = refnameRangeTableEntry(pstate, refname);
|
||||
if (rte == NULL)
|
||||
rte = addRangeTableEntry(pstate, refname, refname, FALSE, FALSE);
|
||||
|
||||
@ -196,6 +195,7 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
|
||||
Oid dummyTypeId;
|
||||
|
||||
return ((Node *) make_var(pstate,
|
||||
relid,
|
||||
refname,
|
||||
funcname,
|
||||
&dummyTypeId));
|
||||
@ -288,19 +288,18 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
|
||||
|
||||
if (nodeTag(pair) == T_Ident && ((Ident *) pair)->isRel)
|
||||
{
|
||||
|
||||
/*
|
||||
* a relation
|
||||
*/
|
||||
refname = ((Ident *) pair)->name;
|
||||
|
||||
rte = refnameRangeTableEntry(pstate->p_rtable, refname);
|
||||
rte = refnameRangeTableEntry(pstate, refname);
|
||||
if (rte == NULL)
|
||||
rte = addRangeTableEntry(pstate, refname, refname,
|
||||
FALSE, FALSE);
|
||||
relname = rte->relname;
|
||||
|
||||
vnum = refnameRangeTablePosn(pstate->p_rtable, rte->refname);
|
||||
vnum = refnameRangeTablePosn(pstate, rte->refname, NULL);
|
||||
|
||||
/*
|
||||
* for func(relname), the param to the function is the tuple
|
||||
@ -312,7 +311,7 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
|
||||
toid = typeTypeId(typenameType(relname));
|
||||
/* replace it in the arg list */
|
||||
lfirst(fargs) =
|
||||
makeVar(vnum, 0, toid, vnum, 0);
|
||||
makeVar(vnum, 0, toid, 0, vnum, 0);
|
||||
}
|
||||
else if (!attisset)
|
||||
{ /* set functions don't have parameters */
|
||||
@ -1074,7 +1073,7 @@ setup_tlist(char *attname, Oid relid)
|
||||
0,
|
||||
(Oid) 0,
|
||||
0);
|
||||
varnode = makeVar(-1, attno, typeid, -1, attno);
|
||||
varnode = makeVar(-1, attno, typeid, 0, -1, attno);
|
||||
|
||||
tle = makeNode(TargetEntry);
|
||||
tle->resdom = resnode;
|
||||
@ -1101,7 +1100,7 @@ setup_base_tlist(Oid typeid)
|
||||
0,
|
||||
(Oid) 0,
|
||||
0);
|
||||
varnode = makeVar(-1, 1, typeid, -1, 1);
|
||||
varnode = makeVar(-1, 1, typeid, 0, -1, 1);
|
||||
tle = makeNode(TargetEntry);
|
||||
tle->resdom = resnode;
|
||||
tle->expr = (Node *) varnode;
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_node.c,v 1.9 1998/01/20 05:04:21 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_node.c,v 1.10 1998/01/20 22:11:57 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -239,27 +239,24 @@ make_op(char *opname, Node *ltree, Node *rtree)
|
||||
}
|
||||
|
||||
Var *
|
||||
make_var(ParseState *pstate, char *refname, char *attrname, Oid *type_id)
|
||||
make_var(ParseState *pstate, Oid relid, char *refname,
|
||||
char *attrname, Oid *type_id)
|
||||
{
|
||||
Var *varnode;
|
||||
int vnum,
|
||||
attid;
|
||||
Oid vartypeid;
|
||||
RangeTblEntry *rte;
|
||||
int sublevels_up;
|
||||
|
||||
rte = refnameRangeTableEntry(pstate->p_rtable, refname);
|
||||
if (rte == NULL)
|
||||
rte = addRangeTableEntry(pstate, refname, refname, FALSE, FALSE);
|
||||
vnum = refnameRangeTablePosn(pstate, refname, &sublevels_up);
|
||||
|
||||
vnum = refnameRangeTablePosn(pstate->p_rtable, refname);
|
||||
|
||||
attid = get_attnum(rte->relid, attrname);
|
||||
attid = get_attnum(relid, attrname);
|
||||
if (attid == InvalidAttrNumber)
|
||||
elog(ERROR, "Relation %s does not have attribute %s",
|
||||
rte->relname, attrname);
|
||||
vartypeid = get_atttype(rte->relid, attid);
|
||||
refname, attrname);
|
||||
vartypeid = get_atttype(relid, attid);
|
||||
|
||||
varnode = makeVar(vnum, attid, vartypeid, vnum, attid);
|
||||
varnode = makeVar(vnum, attid, vartypeid, sublevels_up, vnum, attid);
|
||||
*type_id = vartypeid;
|
||||
|
||||
return varnode;
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.7 1998/01/20 05:04:24 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.8 1998/01/20 22:12:01 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -67,35 +67,57 @@ static char *attnum_type[SPECIALS] = {
|
||||
|
||||
/* given refname, return a pointer to the range table entry */
|
||||
RangeTblEntry *
|
||||
refnameRangeTableEntry(List *rtable, char *refname)
|
||||
refnameRangeTableEntry(ParseState *pstate, char *refname)
|
||||
{
|
||||
List *temp;
|
||||
|
||||
foreach(temp, rtable)
|
||||
while (pstate != NULL)
|
||||
{
|
||||
RangeTblEntry *rte = lfirst(temp);
|
||||
|
||||
if (!strcmp(rte->refname, refname))
|
||||
return rte;
|
||||
foreach(temp, pstate->p_rtable)
|
||||
{
|
||||
RangeTblEntry *rte = lfirst(temp);
|
||||
|
||||
if (!strcmp(rte->refname, refname))
|
||||
return rte;
|
||||
}
|
||||
/* only allow correlated columns in WHERE clause */
|
||||
if (pstate->p_in_where_clause)
|
||||
pstate = pstate->parentParseState;
|
||||
else break;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* given refname, return id of variable; position starts with 1 */
|
||||
int
|
||||
refnameRangeTablePosn(List *rtable, char *refname)
|
||||
refnameRangeTablePosn(ParseState *pstate, char *refname, int *sublevels_up)
|
||||
{
|
||||
int index;
|
||||
List *temp;
|
||||
|
||||
index = 1;
|
||||
foreach(temp, rtable)
|
||||
{
|
||||
RangeTblEntry *rte = lfirst(temp);
|
||||
|
||||
if (sublevels_up)
|
||||
*sublevels_up = 0;
|
||||
|
||||
if (!strcmp(rte->refname, refname))
|
||||
return index;
|
||||
index++;
|
||||
while (pstate != NULL)
|
||||
{
|
||||
index = 1;
|
||||
foreach(temp, pstate->p_rtable)
|
||||
{
|
||||
RangeTblEntry *rte = lfirst(temp);
|
||||
|
||||
if (!strcmp(rte->refname, refname))
|
||||
return index;
|
||||
index++;
|
||||
}
|
||||
/* only allow correlated columns in WHERE clause */
|
||||
if (pstate->p_in_where_clause)
|
||||
{
|
||||
pstate = pstate->parentParseState;
|
||||
if (sublevels_up)
|
||||
(*sublevels_up)++;
|
||||
}
|
||||
else break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -110,31 +132,38 @@ colnameRangeTableEntry(ParseState *pstate, char *colname)
|
||||
List *rtable;
|
||||
RangeTblEntry *rte_result;
|
||||
|
||||
if (pstate->p_is_rule)
|
||||
rtable = lnext(lnext(pstate->p_rtable));
|
||||
else
|
||||
rtable = pstate->p_rtable;
|
||||
|
||||
rte_result = NULL;
|
||||
foreach(et, rtable)
|
||||
while (pstate != NULL)
|
||||
{
|
||||
RangeTblEntry *rte = lfirst(et);
|
||||
if (pstate->p_is_rule)
|
||||
rtable = lnext(lnext(pstate->p_rtable));
|
||||
else
|
||||
rtable = pstate->p_rtable;
|
||||
|
||||
/* only entries on outer(non-function?) scope */
|
||||
if (!rte->inFromCl && rte != pstate->p_target_rangetblentry)
|
||||
continue;
|
||||
|
||||
if (get_attnum(rte->relid, colname) != InvalidAttrNumber)
|
||||
foreach(et, rtable)
|
||||
{
|
||||
if (rte_result != NULL)
|
||||
RangeTblEntry *rte = lfirst(et);
|
||||
|
||||
/* only entries on outer(non-function?) scope */
|
||||
if (!rte->inFromCl && rte != pstate->p_target_rangetblentry)
|
||||
continue;
|
||||
|
||||
if (get_attnum(rte->relid, colname) != InvalidAttrNumber)
|
||||
{
|
||||
if (!pstate->p_is_insert ||
|
||||
rte != pstate->p_target_rangetblentry)
|
||||
elog(ERROR, "Column %s is ambiguous", colname);
|
||||
if (rte_result != NULL)
|
||||
{
|
||||
if (!pstate->p_is_insert ||
|
||||
rte != pstate->p_target_rangetblentry)
|
||||
elog(ERROR, "Column %s is ambiguous", colname);
|
||||
}
|
||||
else
|
||||
rte_result = rte;
|
||||
}
|
||||
else
|
||||
rte_result = rte;
|
||||
}
|
||||
/* only allow correlated columns in WHERE clause */
|
||||
if (pstate->p_in_where_clause && rte_result == NULL)
|
||||
pstate = pstate->parentParseState;
|
||||
else break;
|
||||
}
|
||||
return rte_result;
|
||||
}
|
||||
@ -152,11 +181,15 @@ addRangeTableEntry(ParseState *pstate,
|
||||
{
|
||||
Relation relation;
|
||||
RangeTblEntry *rte = makeNode(RangeTblEntry);
|
||||
int sublevels_up;
|
||||
|
||||
if (pstate != NULL &&
|
||||
refnameRangeTableEntry(pstate->p_rtable, refname) != NULL)
|
||||
elog(ERROR, "Table name %s specified more than once", refname);
|
||||
|
||||
if (pstate != NULL)
|
||||
{
|
||||
if (refnameRangeTablePosn(pstate, refname, &sublevels_up) != 0 &&
|
||||
(!inFromCl || sublevels_up == 0))
|
||||
elog(ERROR, "Table name %s specified more than once", refname);
|
||||
}
|
||||
|
||||
rte->relname = pstrdup(relname);
|
||||
rte->refname = pstrdup(refname);
|
||||
|
||||
@ -191,7 +224,6 @@ addRangeTableEntry(ParseState *pstate,
|
||||
/*
|
||||
* expandAll -
|
||||
* makes a list of attributes
|
||||
* assumes reldesc caching works
|
||||
*/
|
||||
List *
|
||||
expandAll(ParseState *pstate, char *relname, char *refname, int *this_resno)
|
||||
@ -206,7 +238,7 @@ expandAll(ParseState *pstate, char *relname, char *refname, int *this_resno)
|
||||
int type_len;
|
||||
RangeTblEntry *rte;
|
||||
|
||||
rte = refnameRangeTableEntry(pstate->p_rtable, refname);
|
||||
rte = refnameRangeTableEntry(pstate, refname);
|
||||
if (rte == NULL)
|
||||
rte = addRangeTableEntry(pstate, relname, refname, FALSE, FALSE);
|
||||
|
||||
@ -225,7 +257,8 @@ expandAll(ParseState *pstate, char *relname, char *refname, int *this_resno)
|
||||
TargetEntry *te = makeNode(TargetEntry);
|
||||
|
||||
attrname = pstrdup((rdesc->rd_att->attrs[varattno]->attname).data);
|
||||
varnode = (Var *) make_var(pstate, refname, attrname, &type_id);
|
||||
varnode = (Var *) make_var(pstate, rte->relid, refname,
|
||||
attrname, &type_id);
|
||||
type_len = (int) typeLen(typeidType(type_id));
|
||||
|
||||
handleTargetColname(pstate, &resname, refname, attrname);
|
||||
@ -381,7 +414,7 @@ checkTargetTypes(ParseState *pstate, char *target_colname,
|
||||
return;
|
||||
|
||||
if (refname != NULL)
|
||||
rte = refnameRangeTableEntry(pstate->p_rtable, refname);
|
||||
rte = refnameRangeTableEntry(pstate, refname);
|
||||
else
|
||||
{
|
||||
rte = colnameRangeTableEntry(pstate, colname);
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: makefuncs.h,v 1.5 1997/09/08 02:37:15 momjian Exp $
|
||||
* $Id: makefuncs.h,v 1.6 1998/01/20 22:12:13 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -27,6 +27,7 @@ extern Var *
|
||||
makeVar(Index varno,
|
||||
AttrNumber varattno,
|
||||
Oid vartype,
|
||||
Index varlevelsup,
|
||||
Index varnoold,
|
||||
AttrNumber varoattno);
|
||||
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: primnodes.h,v 1.15 1998/01/19 18:11:10 momjian Exp $
|
||||
* $Id: primnodes.h,v 1.16 1998/01/20 22:12:14 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -104,6 +104,7 @@ typedef struct Expr
|
||||
* (could be INNER or OUTER)
|
||||
* varattno - attribute number of this var, or zero for all
|
||||
* vartype - pg_type tuple oid for the type of this var
|
||||
* varlevelsup - for subquery variables referencing outer relations
|
||||
* varnoold - keep varno around in case it got changed to INNER/
|
||||
* OUTER (see match_varid)
|
||||
* varoattno - attribute number of this var
|
||||
@ -122,6 +123,7 @@ typedef struct Var
|
||||
Index varno;
|
||||
AttrNumber varattno;
|
||||
Oid vartype;
|
||||
Index varlevelsup; /* erased by upper optimizer */
|
||||
Index varnoold; /* only used by optimizer */
|
||||
AttrNumber varoattno; /* only used by optimizer */
|
||||
} Var;
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: parse_node.h,v 1.6 1998/01/19 05:06:41 momjian Exp $
|
||||
* $Id: parse_node.h,v 1.7 1998/01/20 22:12:16 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -45,7 +45,8 @@ typedef struct ParseState
|
||||
|
||||
extern ParseState *make_parsestate(ParseState *parentParseState);
|
||||
extern Expr *make_op(char *opname, Node *ltree, Node *rtree);
|
||||
extern Var *make_var(ParseState *pstate, char *refname, char *attrname, Oid *type_id);
|
||||
extern Var *make_var(ParseState *pstate, Oid relid, char *refname,
|
||||
char *attrname, Oid *type_id);
|
||||
extern ArrayRef *make_array_ref(Node *expr,
|
||||
List *indirection);
|
||||
extern ArrayRef *make_array_set(Expr *target_expr,
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: parse_relation.h,v 1.5 1998/01/20 05:04:56 momjian Exp $
|
||||
* $Id: parse_relation.h,v 1.6 1998/01/20 22:12:17 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -20,8 +20,9 @@
|
||||
#include <parser/parse_node.h>
|
||||
#include <utils/rel.h>
|
||||
|
||||
extern RangeTblEntry *refnameRangeTableEntry(List *rtable, char *refname);
|
||||
extern int refnameRangeTablePosn(List *rtable, char *refname);
|
||||
extern RangeTblEntry *refnameRangeTableEntry(ParseState *pstate, char *refname);
|
||||
extern int refnameRangeTablePosn(ParseState *pstate,
|
||||
char *refname, int *sublevels_up);
|
||||
extern RangeTblEntry *colnameRangeTableEntry(ParseState *pstate, char *colname);
|
||||
extern RangeTblEntry *addRangeTableEntry(ParseState *pstate,
|
||||
char *relname,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user