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First workaround solution for Jan's column constraint attributes.
This commit is contained in:
Thomas G. Lockhart
parent
58a9ea9d80
commit
dfdff4e0f1
@ -11,7 +11,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.144 2000/02/18 09:29:40 inoue Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.145 2000/02/19 08:25:49 thomas Exp $
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*
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* HISTORY
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* AUTHOR DATE MAJOR EVENT
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@ -263,14 +263,15 @@ static Node *doNegate(Node *n);
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%type <str> TypeId
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%type <node> TableConstraint
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%type <list> ColPrimaryKey, ColQualList, ColQualifier
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%type <list> ColQualList, ColQualifier
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%type <list> ColQualListWithNull
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%type <node> ColConstraint, ColConstraintElem
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%type <node> ColConstraint, ColConstraintElem, PrimaryKey, NotNull
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%type <node> DefaultClause, DefaultExpr
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%type <node> ColConstraintWithNull, ColConstraintElemWithNull
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%type <ival> key_actions, key_action, key_reference
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%type <ival> key_actions, key_delete, key_update, key_reference
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%type <str> key_match
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%type <ival> ConstraintAttributeSpec, ConstraintDeferrabilitySpec,
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ConstraintTimeSpec
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%type <ival> ConstraintAttribute, DeferrabilityClause,
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TimeClause
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%type <list> constraints_set_list
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%type <list> constraints_set_namelist
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@ -1028,40 +1029,132 @@ OptTableElement: columnDef { $$ = $1; }
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| TableConstraint { $$ = $1; }
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;
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columnDef: ColId Typename ColQualifier
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columnDef: ColId Typename ColQualifier opt_collate
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{
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ColumnDef *n = makeNode(ColumnDef);
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n->colname = $1;
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n->typename = $2;
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#if 0
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n->raw_default = NULL;
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n->cooked_default = NULL;
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n->is_not_null = FALSE;
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#endif
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n->constraints = $3;
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if ($4 != NULL)
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elog(NOTICE,"CREATE TABLE/COLLATE %s not yet implemented"
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"; clause ignored", $4);
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$$ = (Node *)n;
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}
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| ColId SERIAL ColPrimaryKey
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| ColId SERIAL PrimaryKey
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{
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ColumnDef *n = makeNode(ColumnDef);
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n->colname = $1;
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n->typename = makeNode(TypeName);
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n->typename->name = xlateSqlType("integer");
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n->typename->typmod = -1;
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#if 0
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n->raw_default = NULL;
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n->cooked_default = NULL;
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#endif
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n->is_not_null = TRUE;
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n->is_sequence = TRUE;
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n->constraints = $3;
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n->constraints = lcons($3, NIL);
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$$ = (Node *)n;
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}
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;
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ColQualifier: ColQualList { $$ = $1; }
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| NULL_P ColQualListWithNull { $$ = $2; }
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| NULL_P { $$ = NULL; }
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/*
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* ColQualifier encapsulates an entire column qualification,
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* including DEFAULT, constraints, and constraint attributes.
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* Note that the DefaultClause handles the empty case.
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*/
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ColQualifier: DefaultClause ColQualList
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{
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if ($1 != NULL)
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$$ = lcons($1, $2);
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else
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$$ = $2;
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}
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| NotNull DefaultClause ColQualListWithNull
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{
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$$ = lcons($1, $3);
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if ($2 != NULL)
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$$ = lcons($2, $$);
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}
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| DefaultExpr NotNull ColQualListWithNull
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{
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$$ = lcons($2, $3);
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if ($1 != NULL)
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$$ = lcons($1, $$);
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}
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| DefaultExpr NotNull
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{
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$$ = lcons($2, NIL);
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if ($1 != NULL)
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$$ = lcons($1, $$);
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}
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| NotNull DefaultClause
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{
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$$ = lcons($1, NIL);
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if ($2 != NULL)
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$$ = lcons($2, $$);
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}
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| NULL_P DefaultClause ColQualListWithNull
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{
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$$ = $3;
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if ($2 != NULL)
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$$ = lcons($2, $$);
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}
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| NULL_P DefaultClause
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{
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if ($2 != NULL)
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$$ = lcons($2, NIL);
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else
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$$ = NIL;
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}
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| DefaultClause
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{
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if ($1 != NULL)
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$$ = lcons($1, NIL);
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else
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$$ = NIL;
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}
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;
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/*
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* DEFAULT expression must be b_expr not a_expr to prevent shift/reduce
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* conflict on NOT (since NOT might start a subsequent NOT NULL constraint,
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* or be part of a_expr NOT LIKE or similar constructs).
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*/
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DefaultClause: DefaultExpr { $$ = $1; }
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| /*EMPTY*/ { $$ = NULL; }
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;
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DefaultExpr: DEFAULT NULL_P
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_DEFAULT;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = (Node *)n;
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}
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| DEFAULT b_expr
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_DEFAULT;
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n->name = NULL;
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n->raw_expr = $2;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = (Node *)n;
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}
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;
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ColQualList: ColQualList ColConstraint
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{
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if ($2 != NULL)
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@ -1078,12 +1171,12 @@ ColQualList: ColQualList ColConstraint
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}
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;
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ColQualListWithNull: ColQualListWithNull ColConstraintWithNull
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ColQualListWithNull: ColConstraintWithNull ColQualListWithNull
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{
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if ($2 != NULL)
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$$ = lappend($1, $2);
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if ($1 != NULL)
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$$ = lcons($1, $2);
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else
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$$ = $1;
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$$ = $2;
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}
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| ColConstraintWithNull
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{
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@ -1094,21 +1187,7 @@ ColQualListWithNull: ColQualListWithNull ColConstraintWithNull
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}
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;
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ColPrimaryKey: PRIMARY KEY
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_PRIMARY;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = lcons((Node *)n, NIL);
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}
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| /*EMPTY*/ { $$ = NULL; }
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;
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ColConstraint:
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CONSTRAINT name ColConstraintElem
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ColConstraint: CONSTRAINT name ColConstraintElem
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{
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switch (nodeTag($3))
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{
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@ -1133,8 +1212,7 @@ ColConstraint:
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{ $$ = $1; }
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;
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ColConstraintWithNull:
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CONSTRAINT name ColConstraintElemWithNull
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ColConstraintWithNull: CONSTRAINT name ColConstraintElemWithNull
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{
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switch (nodeTag($3))
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{
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@ -1169,25 +1247,11 @@ ColConstraintWithNull:
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* that a column may have that value. WITH NULL leads to
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* shift/reduce conflicts with WITH TIME ZONE anyway.
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* - thomas 1999-01-08
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*
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* DEFAULT expression must be b_expr not a_expr to prevent shift/reduce
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* conflict on NOT (since NOT might start a subsequent NOT NULL constraint,
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* or be part of a_expr NOT LIKE or similar constructs).
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*/
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ColConstraintElem: ColConstraintElemWithNull
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{
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$$ = $1;
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}
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| NOT NULL_P
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_NOTNULL;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = (Node *)n;
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}
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| UNIQUE
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{
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Constraint *n = makeNode(Constraint);
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@ -1198,15 +1262,9 @@ ColConstraintElem: ColConstraintElemWithNull
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n->keys = NULL;
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$$ = (Node *)n;
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}
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| PRIMARY KEY
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| PrimaryKey
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_PRIMARY;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = (Node *)n;
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$$ = $1;
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}
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;
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@ -1220,31 +1278,23 @@ ColConstraintElemWithNull: CHECK '(' a_expr ')'
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n->keys = NULL;
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$$ = (Node *)n;
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}
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| DEFAULT NULL_P
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| REFERENCES ColId opt_column_list
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key_match key_actions ConstraintAttribute
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_DEFAULT;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = NULL;
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FkConstraint *n = makeNode(FkConstraint);
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n->constr_name = NULL;
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n->pktable_name = $2;
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n->fk_attrs = NIL;
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n->pk_attrs = $3;
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n->match_type = $4;
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n->actions = $5;
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n->deferrable = (($6 & 1) != 0);
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n->initdeferred = (($6 & 2) != 0);
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$$ = (Node *)n;
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}
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| DEFAULT b_expr
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| REFERENCES ColId opt_column_list
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key_match key_actions
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_DEFAULT;
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n->name = NULL;
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n->raw_expr = $2;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = (Node *)n;
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}
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| REFERENCES ColId opt_column_list key_match key_actions
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{
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/* XXX
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* Need ConstraintAttributeSpec as $6 -- Jan
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*/
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FkConstraint *n = makeNode(FkConstraint);
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n->constr_name = NULL;
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n->pktable_name = $2;
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@ -1254,14 +1304,33 @@ ColConstraintElemWithNull: CHECK '(' a_expr ')'
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n->actions = $5;
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n->deferrable = true;
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n->initdeferred = false;
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/*
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n->deferrable = ($6 & 1) != 0;
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n->initdeferred = ($6 & 2) != 0;
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*/
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$$ = (Node *)n;
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}
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;
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PrimaryKey: PRIMARY KEY
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_PRIMARY;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = (Node *)n;
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}
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;
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NotNull: NOT NULL_P
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_NOTNULL;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = NULL;
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$$ = (Node *)n;
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}
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/* ConstraintElem specifies constraint syntax which is not embedded into
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* a column definition. ColConstraintElem specifies the embedded form.
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* - thomas 1997-12-03
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@ -1310,17 +1379,14 @@ ConstraintElem: CHECK '(' a_expr ')'
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n->keys = $3;
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$$ = (Node *)n;
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}
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| PRIMARY KEY '(' columnList ')'
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| PrimaryKey '(' columnList ')'
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{
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Constraint *n = makeNode(Constraint);
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n->contype = CONSTR_PRIMARY;
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n->name = NULL;
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n->raw_expr = NULL;
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n->cooked_expr = NULL;
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n->keys = $4;
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Constraint *n = (Constraint *)$1;
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n->keys = $3;
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$$ = (Node *)n;
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}
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| FOREIGN KEY '(' columnList ')' REFERENCES ColId opt_column_list key_match key_actions ConstraintAttributeSpec
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| FOREIGN KEY '(' columnList ')' REFERENCES ColId opt_column_list
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key_match key_actions ConstraintAttribute
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{
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FkConstraint *n = makeNode(FkConstraint);
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n->constr_name = NULL;
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@ -1333,6 +1399,20 @@ ConstraintElem: CHECK '(' a_expr ')'
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n->initdeferred = ($11 & 2) != 0;
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$$ = (Node *)n;
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}
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| FOREIGN KEY '(' columnList ')' REFERENCES ColId opt_column_list
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key_match key_actions
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{
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FkConstraint *n = makeNode(FkConstraint);
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n->constr_name = NULL;
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n->pktable_name = $7;
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n->fk_attrs = $4;
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n->pk_attrs = $8;
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n->match_type = $9;
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n->actions = $10;
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n->deferrable = false;
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n->initdeferred = false;
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$$ = (Node *)n;
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}
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;
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key_match: MATCH FULL
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@ -1341,7 +1421,7 @@ key_match: MATCH FULL
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}
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| MATCH PARTIAL
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{
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elog(ERROR, "FOREIGN KEY match type PARTIAL not implemented yet");
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elog(ERROR, "FOREIGN KEY/MATCH PARTIAL not yet implemented");
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$$ = "PARTIAL";
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}
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| /*EMPTY*/
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@ -1350,13 +1430,17 @@ key_match: MATCH FULL
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}
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;
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key_actions: key_action key_action { $$ = $1 | $2; }
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| key_action { $$ = $1; }
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key_actions: key_delete { $$ = $1; }
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| key_update { $$ = $1; }
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| key_delete key_update { $$ = $1 | $2; }
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| key_update key_delete { $$ = $1 | $2; }
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| /*EMPTY*/ { $$ = 0; }
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;
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key_action: ON DELETE key_reference { $$ = $3 << FKCONSTR_ON_DELETE_SHIFT; }
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| ON UPDATE key_reference { $$ = $3 << FKCONSTR_ON_UPDATE_SHIFT; }
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key_delete: ON DELETE key_reference { $$ = $3 << FKCONSTR_ON_DELETE_SHIFT; }
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;
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key_update: ON UPDATE key_reference { $$ = $3 << FKCONSTR_ON_UPDATE_SHIFT; }
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;
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key_reference: NO ACTION { $$ = FKCONSTR_ON_KEY_NOACTION; }
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@ -1558,7 +1642,7 @@ CreateTrigStmt: CREATE TRIGGER name TriggerActionTime TriggerEvents ON
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}
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| CREATE CONSTRAINT TRIGGER name AFTER TriggerEvents ON
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relation_name OptConstrFromTable
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ConstraintAttributeSpec
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ConstraintAttribute
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FOR EACH ROW EXECUTE PROCEDURE name '(' TriggerFuncArgs ')'
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{
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CreateTrigStmt *n = makeNode(CreateTrigStmt);
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@ -1658,41 +1742,37 @@ OptConstrFromTable: /* Empty */
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}
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;
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ConstraintAttributeSpec: ConstraintDeferrabilitySpec
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{ $$ = $1; }
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| ConstraintDeferrabilitySpec ConstraintTimeSpec
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ConstraintAttribute: DeferrabilityClause
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{
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if ($1 == 0 && $2 != 0)
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elog(ERROR, "INITIALLY DEFERRED constraint must be DEFERRABLE");
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$$ = $1 | $2;
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$$ = $1;
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}
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| ConstraintTimeSpec
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| TimeClause
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{
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if ($1 != 0)
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$$ = 3;
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else
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$$ = 0;
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}
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| ConstraintTimeSpec ConstraintDeferrabilitySpec
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| DeferrabilityClause TimeClause
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{
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if ($1 == 0 && $2 != 0)
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elog(ERROR, "INITIALLY DEFERRED constraint must be DEFERRABLE");
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$$ = $1 | $2;
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}
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| TimeClause DeferrabilityClause
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{
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if ($2 == 0 && $1 != 0)
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elog(ERROR, "INITIALLY DEFERRED constraint must be DEFERRABLE");
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$$ = $1 | $2;
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}
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| /* Empty */
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{ $$ = 0; }
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;
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ConstraintDeferrabilitySpec: NOT DEFERRABLE
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{ $$ = 0; }
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| DEFERRABLE
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{ $$ = 1; }
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DeferrabilityClause: DEFERRABLE { $$ = 1; }
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| NOT DEFERRABLE { $$ = 0; }
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;
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ConstraintTimeSpec: INITIALLY IMMEDIATE
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{ $$ = 0; }
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| INITIALLY DEFERRED
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{ $$ = 2; }
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TimeClause: INITIALLY IMMEDIATE { $$ = 0; }
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| INITIALLY DEFERRED { $$ = 2; }
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;
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@ -2734,18 +2814,7 @@ CreatedbStmt: CREATE DATABASE database_name WITH createdb_opt_location createdb
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n = makeNode(CreatedbStmt);
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n->dbname = $3;
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n->dbpath = $5;
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#ifdef MULTIBYTE
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if ($6 != NULL) {
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n->encoding = pg_char_to_encoding($6);
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if (n->encoding < 0) {
|
||||
elog(ERROR, "Encoding name '%s' is invalid", $6);
|
||||
}
|
||||
} else {
|
||||
n->encoding = GetTemplateEncoding();
|
||||
}
|
||||
#else
|
||||
n->encoding = 0;
|
||||
#endif
|
||||
n->encoding = $6;
|
||||
$$ = (Node *)n;
|
||||
}
|
||||
| CREATE DATABASE database_name
|
||||
@ -2795,7 +2864,7 @@ createdb_opt_encoding:
|
||||
#ifdef MULTIBYTE
|
||||
$$ = GetTemplateEncoding();
|
||||
#else
|
||||
$$ = -1;
|
||||
$$ = 0;
|
||||
#endif
|
||||
}
|
||||
| /*EMPTY*/
|
||||
@ -2803,7 +2872,7 @@ createdb_opt_encoding:
|
||||
#ifdef MULTIBYTE
|
||||
$$ = GetTemplateEncoding();
|
||||
#else
|
||||
$$= -1;
|
||||
$$= 0;
|
||||
#endif
|
||||
}
|
||||
;
|
||||
@ -3935,7 +4004,7 @@ Character: character '(' Iconst ')'
|
||||
}
|
||||
;
|
||||
|
||||
character: CHARACTER opt_varying opt_charset opt_collate
|
||||
character: CHARACTER opt_varying opt_charset
|
||||
{
|
||||
char *type, *c;
|
||||
if (($3 == NULL) || (strcasecmp($3, "sql_text") == 0)) {
|
||||
@ -3951,8 +4020,6 @@ character: CHARACTER opt_varying opt_charset opt_collate
|
||||
type = xlateSqlType($3);
|
||||
}
|
||||
};
|
||||
if ($4 != NULL)
|
||||
elog(NOTICE,"COLLATE %s not yet implemented; clause ignored",$4);
|
||||
$$ = type;
|
||||
}
|
||||
| CHAR opt_varying { $$ = xlateSqlType($2? "varchar": "char"); }
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user