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Synced preproc.y with gram.y
This commit is contained in:
parent
77ac0a8ca6
commit
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@ -956,5 +956,9 @@ Wed Oct 4 14:36:51 CEST 2000
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- Added patch by Christof Petig <christof.petig@wtal.de> to fix
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missing NOTICE.
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Wed Oct 11 16:49:36 CEST 2000
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- Synced preproc.y with gram.y.
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- Set ecpg version to 2.8.0.
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- Set library version to 3.2.0.
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@ -24,8 +24,7 @@ char errortext[128];
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char *connection = NULL;
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char *input_filename = NULL;
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static int QueryIsRule = 0, ForUpdateNotAllowed = 0, FoundInto = 0;
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static int FoundSort = 0;
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static int QueryIsRule = 0, FoundInto = 0;
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static int initializer = 0;
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static struct this_type actual_type[STRUCT_DEPTH];
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static char *actual_storage[STRUCT_DEPTH];
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@ -300,7 +299,7 @@ make_name(void)
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%type <str> opt_decimal Character character opt_varying opt_charset
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%type <str> opt_collate datetime opt_timezone opt_interval table_ref
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%type <str> row_expr row_descriptor row_list ConstDatetime opt_chain
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%type <str> SelectStmt SubSelect result OptTemp ConstraintAttributeSpec
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%type <str> SelectStmt select_subclause result OptTemp ConstraintAttributeSpec
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%type <str> opt_table opt_all sort_clause sortby_list ConstraintAttr
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%type <str> sortby OptUseOp opt_inh_star relation_name_list name_list
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%type <str> group_clause having_clause from_clause opt_distinct
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@ -1972,25 +1971,7 @@ func_args_list: func_arg { $$ = $1; }
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{ $$ = cat_str(3, $1, make_str(","), $3); }
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;
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/* Would be nice to use the full Typename production for these fields,
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* but that one sometimes dives into the catalogs looking for valid types.
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* Arguments like "opaque" are valid when defining functions,
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* so that won't work here. The only thing we give up is array notation,
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* which isn't meaningful in this context anyway.
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* - thomas 2000-03-25
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* The following productions are difficult, since it is difficult to
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* distinguish between TokenId and SimpleTypename:
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opt_arg TokenId SimpleTypename
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{
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$$ = $3;
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}
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| TokenId SimpleTypename
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{
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$$ = $2;
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}
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*/
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func_arg: opt_arg SimpleTypename
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func_arg: opt_arg Typename
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{
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/* We can catch over-specified arguments here if we want to,
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* but for now better to silently swallow typmod, etc.
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@ -1998,7 +1979,7 @@ func_arg: opt_arg SimpleTypename
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*/
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$$ = cat2_str($1, $2);
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}
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| SimpleTypename
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| Typename
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{
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$$ = $1;
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}
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@ -2020,7 +2001,7 @@ opt_arg: IN { $$ = make_str("in"); }
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func_as: Sconst { $$ = $1; }
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| Sconst ',' Sconst { $$ = cat_str(3, $1, make_str(","), $3); }
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func_return: SimpleTypename
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func_return: Typename
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{
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/* We can catch over-specified arguments here if we want to,
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* but for now better to silently swallow typmod, etc.
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@ -2028,11 +2009,6 @@ func_return: SimpleTypename
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*/
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$$ = $1;
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}
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| SETOF SimpleTypename
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{
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$$ = cat2_str(make_str("setof"), $2);
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}
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;
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/*****************************************************************************
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@ -2071,7 +2047,7 @@ RemoveAggrStmt: DROP AGGREGATE name aggr_argtype
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}
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;
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aggr_argtype: name { $$ = $1; }
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aggr_argtype: Typename { $$ = $1; }
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| '*' { $$ = make_str("*"); }
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;
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@ -2089,15 +2065,15 @@ RemoveOperStmt: DROP OPERATOR all_Op '(' oper_argtypes ')'
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}
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;
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oper_argtypes: name
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oper_argtypes: Typename
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{
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mmerror(ET_ERROR, "parser: argument type missing (use NONE for unary operators)");
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}
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| name ',' name
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| Typename ',' Typename
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{ $$ = cat_str(3, $1, make_str(","), $3); }
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| NONE ',' name /* left unary */
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| NONE ',' Typename /* left unary */
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{ $$ = cat2_str(make_str("none,"), $3); }
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| name ',' NONE /* right unary */
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| Typename ',' NONE /* right unary */
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{ $$ = cat2_str($1, make_str(", none")); }
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;
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@ -2471,14 +2447,8 @@ insert_rest: VALUES '(' target_list ')'
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{
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$$ = make_str("default values");
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}
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/* We want the full power of SelectStatements including INTERSECT and EXCEPT
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* for insertion. However, we can't support sort or limit clauses.
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*/
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| SelectStmt
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{
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if (FoundSort != 0)
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mmerror(ET_ERROR, "ORDER BY is not allowed in INSERT/SELECT");
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$$ = $1;
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}
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| '(' columnList ')' VALUES '(' target_list ')'
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@ -2487,9 +2457,6 @@ insert_rest: VALUES '(' target_list ')'
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}
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| '(' columnList ')' SelectStmt
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{
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if (FoundSort != 0)
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mmerror(ET_ERROR, "ORDER BY is not all owed in INSERT/SELECT");
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$$ = cat_str(4, make_str("("), $2, make_str(")"), $4);
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}
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;
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@ -2568,9 +2535,7 @@ UpdateStmt: UPDATE opt_only relation_name
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* CURSOR STATEMENTS
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*
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*****************************************************************************/
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CursorStmt: DECLARE name opt_cursor CURSOR FOR
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{ ForUpdateNotAllowed = 1; }
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SelectStmt
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CursorStmt: DECLARE name opt_cursor CURSOR FOR SelectStmt
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{
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struct cursor *ptr, *this;
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@ -2590,7 +2555,7 @@ CursorStmt: DECLARE name opt_cursor CURSOR FOR
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this->next = cur;
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this->name = $2;
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this->connection = connection;
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this->command = cat_str(5, make_str("declare"), mm_strdup($2), $3, make_str("cursor for"), $7);
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this->command = cat_str(5, make_str("declare"), mm_strdup($2), $3, make_str("cursor for"), $6);
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this->argsinsert = argsinsert;
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this->argsresult = argsresult;
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argsinsert = argsresult = NULL;
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@ -2615,21 +2580,9 @@ opt_cursor: BINARY { $$ = make_str("binary"); }
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*
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*****************************************************************************/
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/* The new 'SelectStmt' rule adapted for the optional use of INTERSECT EXCEPT a nd UNION
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* accepts the use of '(' and ')' to select an order of set operations.
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* The rule returns a SelectStmt Node having the set operations attached to
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* unionClause and intersectClause (NIL if no set operations were present)
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*/
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SelectStmt: select_clause
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{ FoundSort = 0; }
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sort_clause for_update_clause opt_select_limit
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SelectStmt: select_clause sort_clause for_update_clause opt_select_limit
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{
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if (strlen($4) > 0 && ForUpdateNotAllowed != 0)
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mmerror(ET_ERROR, "FOR UPDATE is not allowed in this context");
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ForUpdateNotAllowed = 0;
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$$ = cat_str(4, $1, $3, $4, $5);
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$$ = cat_str(4, $1, $2, $3, $4);
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}
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/* This rule parses Select statements including UNION INTERSECT and EXCEPT.
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@ -2637,48 +2590,45 @@ SelectStmt: select_clause
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* (UNION EXCEPT INTERSECT). Without the use of '(' and ')' we want the
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* operations to be ordered per the precedence specs at the head of this file.
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*
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* The sort_clause is not handled here!
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* Since parentheses around SELECTs also appear in the expression grammar,
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* there is a parse ambiguity if parentheses are allowed at the top level of a
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* select_clause: are the parens part of the expression or part of the select?
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* We separate select_clause into two levels to resolve this: select_clause
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* can have top-level parentheses, select_subclause cannot.
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* Note that sort clauses cannot be included at this level --- a sort clau
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* can only appear at the end of the complete Select, and it will be handl
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* by the topmost SelectStmt rule. Likewise FOR UPDATE and LIMIT.
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*/
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select_clause: '(' select_clause ')'
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select_clause: '(' select_subclause ')'
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{
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$$ = cat_str(3, make_str("("), $2, make_str(")"));
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}
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| SubSelect
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| select_subclause
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{
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FoundInto = 0;
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FoundInto = 0;
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$$ = $1;
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}
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| select_clause EXCEPT opt_all select_clause
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{
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if (strlen($3) != 0)
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mmerror(ET_WARN, "EXCEPT ALL is not implemented yet.");
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$$ = cat_str(4, $1, make_str("except"), $3, $4);
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ForUpdateNotAllowed = 1;
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}
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| select_clause UNION opt_all select_clause
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{
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$$ = cat_str(4, $1, make_str("union"), $3, $4);
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ForUpdateNotAllowed = 1;
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}
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| select_clause INTERSECT opt_all select_clause
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{
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if (strlen($3) != 0)
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mmerror(ET_WARN, "INTERSECT ALL is not implemented yet.");
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$$ = cat_str(4, $1, make_str("intersect"), $3, $4);
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ForUpdateNotAllowed = 1;
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}
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;
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SubSelect: SELECT opt_distinct target_list
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select_subclause: SELECT opt_distinct target_list
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result from_clause where_clause
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group_clause having_clause
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{
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if (strlen($7) > 0 || strlen($8) > 0)
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ForUpdateNotAllowed = 1;
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$$ = cat_str(8, make_str("select"), $2, $3, $4, $5, $6, $7, $8);
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}
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| select_clause UNION opt_all select_clause
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{
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$$ = cat_str(4, $1, make_str("union"), $3, $4);
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}
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| select_clause INTERSECT opt_all select_clause
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{
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$$ = cat_str(4, $1, make_str("intersect"), $3, $4);
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}
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| select_clause EXCEPT opt_all select_clause
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{
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$$ = cat_str(4, $1, make_str("except"), $3, $4);
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}
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;
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result: INTO OptTempTableName {
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@ -2747,7 +2697,6 @@ opt_distinct: DISTINCT { $$ = make_str("distinct"); }
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;
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sort_clause: ORDER BY sortby_list {
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FoundSort = 1;
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$$ = cat2_str(make_str("order by"), $3);
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}
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| /*EMPTY*/ { $$ = EMPTY; }
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@ -2880,7 +2829,7 @@ table_ref: relation_expr
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{
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cat2_str($1, $2);
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}
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| '(' select_clause ')' alias_clause
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| '(' select_subclause ')' alias_clause
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{
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cat_str(4, make_str("("), $2, make_str(")"), $4);
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}
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@ -3299,19 +3248,19 @@ opt_interval: datetime { $$ = $1; }
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* Define row_descriptor to allow yacc to break the reduce/reduce conflict
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* with singleton expressions.
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*/
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row_expr: '(' row_descriptor ')' IN '(' SubSelect ')'
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row_expr: '(' row_descriptor ')' IN '(' select_subclause ')'
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{
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$$ = cat_str(5, make_str("("), $2, make_str(") in ("), $6, make_str(")"));
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}
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| '(' row_descriptor ')' NOT IN '(' SubSelect ')'
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| '(' row_descriptor ')' NOT IN '(' select_subclause ')'
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{
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$$ = cat_str(5, make_str("("), $2, make_str(") not in ("), $7, make_str(")"));
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}
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| '(' row_descriptor ')' all_Op sub_type '(' SubSelect ')'
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| '(' row_descriptor ')' all_Op sub_type '(' select_subclause ')'
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{
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$$ = cat_str(8, make_str("("), $2, make_str(")"), $4, $5, make_str("("), $7, make_str(")"));
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}
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| '(' row_descriptor ')' all_Op '(' SubSelect ')'
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| '(' row_descriptor ')' all_Op '(' select_subclause ')'
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{
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$$ = cat_str(7, make_str("("), $2, make_str(")"), $4, make_str("("), $6, make_str(")"));
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}
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@ -3491,7 +3440,7 @@ a_expr: c_expr
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{
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$$ = cat_str(4, $1, make_str(" not in ("), $5, make_str(")"));
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}
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| a_expr all_Op sub_type '(' SubSelect ')'
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| a_expr all_Op sub_type '(' select_subclause ')'
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{
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$$ = cat_str(6, $1, $2, $3, make_str("("), $5, make_str(")"));
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}
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@ -3638,9 +3587,9 @@ c_expr: attr
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{ $$ = cat_str(3, make_str("trim(trailing"), $4, make_str(")")); }
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| TRIM '(' trim_list ')'
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{ $$ = cat_str(3, make_str("trim("), $3, make_str(")")); }
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| '(' SubSelect ')'
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| '(' select_subclause ')'
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{ $$ = cat_str(3, make_str("("), $2, make_str(")")); }
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| EXISTS '(' SubSelect ')'
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| EXISTS '(' select_subclause ')'
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{ $$ = cat_str(3, make_str("exists("), $3, make_str(")")); }
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;
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/*
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@ -3719,7 +3668,7 @@ trim_list: a_expr FROM expr_list
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{ $$ = $1; }
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;
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in_expr: SubSelect
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in_expr: select_subclause
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{
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$$ = $1;
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}
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@ -5164,6 +5113,7 @@ ECPGColId: ident { $$ = $1; }
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| TokenId { $$ = $1; }
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| INTERVAL { $$ = make_str("interval"); }
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| NATIONAL { $$ = make_str("national"); }
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| NONE { $$ = make_str("none"); }
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| PATH_P { $$ = make_str("path_p"); }
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| SERIAL { $$ = make_str("serial"); }
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| TIME { $$ = make_str("time"); }
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@ -5177,7 +5127,7 @@ ECPGColLabel: ECPGColId { $$ = $1; }
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| ANALYZE { $$ = make_str("analyze"); }
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| ANY { $$ = make_str("any"); }
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| ASC { $$ = make_str("asc"); }
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| BETWEEN { $$ = make_str("between"); }
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| BETWEEN { $$ = make_str("between"); }
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| BINARY { $$ = make_str("binary"); }
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| BIT { $$ = make_str("bit"); }
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| BOTH { $$ = make_str("both"); }
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@ -5236,7 +5186,6 @@ ECPGColLabel: ECPGColId { $$ = $1; }
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| NATURAL { $$ = make_str("natural"); }
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| NCHAR { $$ = make_str("nchar"); }
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| NEW { $$ = make_str("new"); }
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| NONE { $$ = make_str("none"); }
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| NOT { $$ = make_str("not"); }
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| NOTNULL { $$ = make_str("notnull"); }
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| NULLIF { $$ = make_str("nullif"); }
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