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@ -231,13 +231,19 @@ make_name(void)
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INDEX, INHERITS, INSTEAD, ISNULL, LANCOMPILER, LIMIT,
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LISTEN, UNLISTEN, LOAD, LOCATION, LOCK_P, MAXVALUE,
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MINVALUE, MODE, MOVE, NEW, NOCREATEDB, NOCREATEUSER,
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NONE, NOTHING, NOTIFY, NOTNULL, OFFSET, OLD, OIDS,
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OPERATOR, PASSWORD, PROCEDURAL, REINDEX, RENAME, RESET,
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NONE, NOTHING, NOTIFY, NOTNULL, OFFSET, OIDS,
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OPERATOR, OWNER, PASSWORD, PROCEDURAL, REINDEX, RENAME, RESET,
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RETURNS, ROW, RULE, SEQUENCE, SERIAL, SETOF, SHARE,
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SHOW, START, STATEMENT, STDIN, STDOUT, SYSID TEMP,
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TRUNCATE, TRUSTED, UNDER, UNLISTEN, UNTIL, VACUUM,
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VALID, VERBOSE, VERSION
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/* The grammar thinks these are keywords, but they are not in the keywords.c
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* list and so can never be entered directly. The filter in parser.c
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* creates these tokens when required.
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*/
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%token UNIONJOIN
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/* Special keywords, not in the query language - see the "lex" file */
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%token <str> IDENT SCONST Op CSTRING CVARIABLE CPP_LINE IP
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%token <ival> ICONST PARAM
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@ -247,13 +253,16 @@ make_name(void)
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%token OP
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/* precedence: lowest to highest */
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%left UNION INTERSECT EXCEPT
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%left UNION EXCEPT
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%left INTERSECT
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%left JOIN UNIONJOIN CROSS LEFT FULL RIGHT INNER_P NATURAL
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%left OR
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%left AND
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%right NOT
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%right '='
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%nonassoc '<' '>'
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%nonassoc LIKE ILIKE
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%nonassoc ESCAPE
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%nonassoc OVERLAPS
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%nonassoc BETWEEN
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%nonassoc IN
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@ -271,7 +280,6 @@ make_name(void)
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%left '.'
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%left '[' ']'
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%left TYPECAST
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%left ESCAPE
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%type <str> Iconst Fconst Sconst TransactionStmt CreateStmt UserId
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%type <str> CreateAsElement OptCreateAs CreateAsList CreateAsStmt
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@ -290,7 +298,7 @@ make_name(void)
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%type <str> trim_list in_expr substr_for attr attrs drop_behavior
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%type <str> Typename SimpleTypename Generic Numeric generic opt_float opt_numeric
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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
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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> opt_table opt_all sort_clause sortby_list ConstraintAttr
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@ -325,26 +333,20 @@ make_name(void)
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%type <str> CreatePLangStmt IntegerOnly TriggerFuncArgs TriggerFuncArg
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%type <str> ViewStmt LoadStmt CreatedbStmt createdb_opt_encoding
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%type <str> createdb_opt_location opt_encoding OptInherit Geometric
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%type <str> DropdbStmt ClusterStmt grantee RevokeStmt table_expr Bit bit
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%type <str> DropdbStmt ClusterStmt grantee RevokeStmt Bit bit
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%type <str> GrantStmt privileges operation_commalist operation
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%type <str> opt_cursor opt_lmode ConstraintsSetStmt comment_tg
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%type <str> case_expr when_clause_list case_default case_arg when_clause
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%type <str> select_clause opt_select_limit select_limit_value ConstraintTimeSpec
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%type <str> select_offset_value using_expr join_expr ReindexStmt
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%type <str> using_list from_expr join_clause join_type opt_only opt_boolean
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%type <str> join_qual update_list join_clause_with_union AlterSchemaStmt
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%type <str> select_offset_value ReindexStmt join_type opt_only opt_boolean
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%type <str> join_qual update_list AlterSchemaStmt joined_table
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%type <str> opt_level opt_lock lock_type users_in_new_group_clause
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%type <str> OptConstrFromTable comment_op OptTempTableName
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%type <str> constraints_set_list constraints_set_namelist comment_fn
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%type <str> constraints_set_mode comment_type comment_cl comment_ag
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%type <str> CreateGroupStmt AlterGroupStmt DropGroupStmt key_delete
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%type <str> join_expr_with_union opt_force key_update CreateSchemaStmt
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%type <str> opt_force key_update CreateSchemaStmt
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%type <str> SessionList SessionClause SetSessionStmt
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/***
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#ifdef ENABLE_ORACLE_JOIN_SYNTAX
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%type <str> oracle_list oracle_expr oracle_outer
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#endif
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***/
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%type <str> ECPGWhenever ECPGConnect connection_target ECPGOpen
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%type <str> indicator ECPGExecute ECPGPrepare ecpg_using
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@ -978,6 +980,11 @@ DEFAULT} */
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{
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$$ = cat_str(6, make_str("alter table"), $3, $4, make_str("drop constraint"), $7, $8);
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}
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/* ALTER TABLE <name> OWNER TO UserId */
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| ALTER TABLE relation_name OWNER TO UserId
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{
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$$ = cat_str(4, make_str("alter table"), $3, make_str("owner to"), $6);
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}
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;
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alter_column_action:
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@ -2299,7 +2306,7 @@ LoadStmt: LOAD file_name
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CreatedbStmt: CREATE DATABASE database_name WITH createdb_opt_location createdb_opt_encoding
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{
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if (strlen($5) == 0 || strlen($6) == 0)
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mmerror(ET_ERROR, "CREATE DATABASE WITH requires at least an option");
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mmerror(ET_ERROR, "CREATE DATABASE WITH requires at least an option.");
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$$ = cat_str(5, make_str("create database"), $3, make_str("with"), $5, $6);
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}
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@ -2628,7 +2635,7 @@ SelectStmt: select_clause
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/* This rule parses Select statements including UNION INTERSECT and EXCEPT.
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* '(' and ')' can be used to specify the order of the operations
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* (UNION EXCEPT INTERSECT). Without the use of '(' and ')' we want the
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* operations to be left associative.
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* operations to be ordered per the precedence specs at the head of this file.
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*
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* The sort_clause is not handled here!
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*/
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@ -2641,9 +2648,12 @@ select_clause: '(' select_clause ')'
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FoundInto = 0;
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$$ = $1;
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}
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| select_clause EXCEPT select_clause
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| select_clause EXCEPT opt_all select_clause
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{
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$$ = cat_str(3, $1, make_str("except"), $3);
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if (strlen($3) != 0)
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mmerror(ET_WARN, "EXCEPT ALL is not implemented yet.");
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$$ = 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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@ -2653,7 +2663,10 @@ select_clause: '(' select_clause ')'
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}
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| select_clause INTERSECT opt_all select_clause
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{
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$$ = cat_str(3, $1, make_str("intersect"), $3);
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if (strlen($3) != 0)
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mmerror(ET_WARN, "INTERSECT ALL is not implemented yet.");
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$$ = 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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@ -2841,54 +2854,91 @@ update_list: OF va_list
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*****************************************************************************/
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from_clause: FROM from_list { $$ = cat2_str(make_str("from"), $2); }
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/***
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#ifdef ENABLE_ORACLE_JOIN_SYNTAX
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| FROM oracle_list { $$ = cat2_str(make_str("from"), $2); }
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#endif
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***/
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| FROM from_expr { $$ = cat2_str(make_str("from"), $2); }
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| /* EMPTY */ { $$ = EMPTY; }
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;
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from_list: from_list ',' table_expr { $$ = cat_str(3, $1, make_str(","), $3); }
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| table_expr { $$ = $1; }
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from_list: from_list ',' table_ref { $$ = cat_str(3, $1, make_str(","), $3); }
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| table_ref { $$ = $1; }
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;
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/***********
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* This results in one shift/reduce conflict, presumably due to the trailing "(
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* - Thomas 1999-09-20
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/*
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* table_ref is where an alias clause can be attached. Note we cannot make
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* alias_clause have an empty production because that causes parse conflicts
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* between table_ref := '(' joined_table ')' alias_clause
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* and joined_table := '(' joined_table ')'. So, we must have the
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* redundant-looking productions here instead.
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*
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#ifdef ENABLE_ORACLE_JOIN_SYNTAX
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oracle_list: oracle_expr { $$ = $1; }
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;
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oracle_expr: ColId ',' ColId oracle_outer
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* Note that the SQL spec does not permit a subselect (<derived_table>)
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* without an alias clause, so we don't either. This avoids the problem
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* of needing to invent a refname for an unlabeled subselect.
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*/
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table_ref: relation_expr
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{
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$$ = $1;
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}
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| relation_expr alias_clause
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{
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mmerror(ET_ERROR, "Oracle OUTER JOIN not yet supported");
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$$ = cat_str(3, $1, make_str(","), $3); }
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cat2_str($1, $2);
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}
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| oracle_outer ColId ',' ColId
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| '(' select_clause ')' alias_clause
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{
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mmerror(ET_ERROR, "Oracle OUTER JOIN not yet supported");
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$$ = cat_str(4, $1, $2, make_str(","), $3); }
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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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| joined_table
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{
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$$ = $1;
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}
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| '(' joined_table ')' alias_clause
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{
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cat_str(4, make_str("("), $2, make_str(")"), $4);
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}
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;
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oracle_outer: '(' '+' ')' { $$ = make_str("(+)"); }
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;
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#endif
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*************/
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/*
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* It may seem silly to separate joined_table from table_ref, but there is
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* method in SQL92's madness: if you don't do it this way you get reduce-
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* reduce conflicts, because it's not clear to the parser generator whether
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* to expect alias_clause after ')' or not. For the same reason we must
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* treat 'JOIN' and 'join_type JOIN' separately, rather than allowing
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* join_type to expand to empty; if we try it, the parser generator can't
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* figure out when to reduce an empty join_type right after table_ref.
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*
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* Note that a CROSS JOIN is the same as an unqualified
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* INNER JOIN, and an INNER JOIN/ON has the same shape
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* but a qualification expression to limit membership.
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* A NATURAL JOIN implicitly matches column names between
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* tables and the shape is determined by which columns are
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* in common. We'll collect columns during the later transformations.
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*/
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from_expr: '(' join_clause_with_union ')' alias_clause
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{ $$ = cat_str(4, make_str("("), $2, make_str(")"), $4); }
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| join_clause
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{ $$ = $1; }
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;
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table_expr: relation_expr alias_clause
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{
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$$ = cat2_str($1, $2);
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}
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joined_table: '(' joined_table ')'
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{
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$$ = cat_str(3, make_str("("), $2, make_str(")"));
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}
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| table_ref CROSS JOIN table_ref
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{
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$$ = cat_str(3, $1, make_str("cross join"), $4);
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}
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| table_ref UNIONJOIN table_ref
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{
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$$ = cat_str(3, $1, make_str("unionjoin"), $3);
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}
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| table_ref join_type JOIN table_ref join_qual
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{
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$$ = cat_str(5, $1, $2, make_str("join"), $4, $5);
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}
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| table_ref JOIN table_ref join_qual
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{
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$$ = cat_str(4, $1, make_str("join"), $3, $4);
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}
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| table_ref NATURAL join_type JOIN table_ref
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{
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$$ = cat_str(5, $1, make_str("natural"), $3, make_str("join"), $5);
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}
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| table_ref NATURAL JOIN table_ref
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{
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$$ = cat_str(3, $1, make_str("natural join"), $4);
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}
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;
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alias_clause: AS ColId '(' name_list ')'
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@ -2899,61 +2949,15 @@ alias_clause: AS ColId '(' name_list ')'
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{ $$ = cat_str(4, $1, make_str("("), $3, make_str(")")); }
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| ColId
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{ $$ = $1; }
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| /*EMPTY*/
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{ $$ = EMPTY; }
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;
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/* A UNION JOIN is the same as a FULL OUTER JOIN which *omits*
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* all result rows which would have matched on an INNER JOIN.
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* Syntactically, must enclose the UNION JOIN in parens to avoid
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* conflicts with SELECT/UNION.
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*/
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join_clause: join_clause join_expr
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{ $$ = cat2_str($1, $2); }
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| table_expr join_expr
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{ $$ = cat2_str($1, $2); }
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;
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/* This is everything but the left side of a join.
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* Note that a CROSS JOIN is the same as an unqualified
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* inner join, so just pass back the right-side table.
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* A NATURAL JOIN implicitly matches column names between
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* tables, and the shape is determined by which columns are
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* in common. We'll collect columns during the later transformations.
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*/
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join_expr: join_type JOIN table_expr join_qual
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{
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$$ = cat_str(4, $1, make_str("join"), $3, $4);
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}
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| NATURAL join_type JOIN table_expr
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{
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$$ = cat_str(4, make_str("natural"), $2, make_str("join"), $4);
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}
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| CROSS JOIN table_expr
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{ $$ = cat2_str(make_str("cross join"), $3); }
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;
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join_clause_with_union: join_clause_with_union join_expr_with_union
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{ $$ = cat2_str($1, $2); }
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| table_expr join_expr_with_union
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{ $$ = cat2_str($1, $2); }
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;
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join_expr_with_union: join_expr
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{ $$ = $1; }
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| UNION JOIN table_expr
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{ $$ = cat2_str(make_str("union join"), $3); }
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;
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/* OUTER is just noise... */
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join_type: FULL join_outer { $$ = cat2_str(make_str("full"), $2); }
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| LEFT join_outer { $$ = cat2_str(make_str("left"), $2); }
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| RIGHT join_outer { $$ = cat2_str(make_str("right"), $2); }
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| OUTER_P { $$ = make_str("outer"); }
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| INNER_P { $$ = make_str("inner"); }
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| /* EMPTY */ { $$ = EMPTY; }
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;
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|
/* OUTER is just noise... */
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join_outer: OUTER_P { $$ = make_str("outer"); }
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| /*EMPTY*/ { $$ = EMPTY; /* no qualifiers */ }
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;
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|
@ -2963,27 +2967,12 @@ join_outer: OUTER_P { $$ = make_str("outer"); }
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|
* USING ( column list ) allows only unqualified column names,
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|
* which must match between tables.
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|
* ON expr allows more general qualifications.
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|
|
* - thomas 1999-01-07
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|
|
*/
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|
join_qual: USING '(' using_list ')' { $$ = cat_str(3, make_str("using ("), $3, make_str(")")); }
|
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|
|
join_qual: USING '(' name_list ')' { $$ = cat_str(3, make_str("using ("), $3, make_str(")")); }
|
|
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|
|
| ON a_expr { $$ = cat2_str(make_str("on"), $2); }
|
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|
;
|
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|
|
using_list: using_list ',' using_expr { $$ = cat_str(3, $1, make_str(","), $3); }
|
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|
|
| using_expr { $$ = $1; }
|
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|
|
;
|
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|
|
using_expr: ColId
|
|
|
|
|
{
|
|
|
|
|
$$ = $1;
|
|
|
|
|
}
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
where_clause: WHERE a_expr { $$ = cat2_str(make_str("where"), $2); }
|
|
|
|
|
| /*EMPTY*/ { $$ = EMPTY; /* no qualifiers */ }
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
relation_expr: relation_name
|
|
|
|
|
{
|
|
|
|
|
/* normal relations */
|
|
|
|
@ -3000,6 +2989,31 @@ relation_expr: relation_name
|
|
|
|
|
$$ = cat2_str(make_str("ONLY "), $2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
where_clause: WHERE a_expr { $$ = cat2_str(make_str("where"), $2); }
|
|
|
|
|
| /*EMPTY*/ { $$ = EMPTY; /* no qualifiers */ }
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
|
*
|
|
|
|
|
* Type syntax
|
|
|
|
|
* SQL92 introduces a large amount of type-specific syntax.
|
|
|
|
|
* Define individual clauses to handle these cases, and use
|
|
|
|
|
* the generic case to handle regular type-extensible Postgres syntax.
|
|
|
|
|
* - thomas 1997-10-10
|
|
|
|
|
*
|
|
|
|
|
*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
Typename: SimpleTypename opt_array_bounds
|
|
|
|
|
{
|
|
|
|
|
$$ = cat2_str($1, $2.str);
|
|
|
|
|
}
|
|
|
|
|
| SETOF SimpleTypename
|
|
|
|
|
{
|
|
|
|
|
$$ = cat2_str(make_str("setof"), $2);
|
|
|
|
|
}
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
opt_array_bounds: '[' ']' opt_array_bounds
|
|
|
|
|
{
|
|
|
|
|
$$.index1 = 0;
|
|
|
|
@ -3032,27 +3046,6 @@ Iresult: Iconst { $$ = atol($1); }
|
|
|
|
|
| Iresult '%' Iresult { $$ = $1 % $3; }
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
|
*
|
|
|
|
|
* Type syntax
|
|
|
|
|
* SQL92 introduces a large amount of type-specific syntax.
|
|
|
|
|
* Define individual clauses to handle these cases, and use
|
|
|
|
|
* the generic case to handle regular type-extensible Postgres syntax.
|
|
|
|
|
* - thomas 1997-10-10
|
|
|
|
|
*
|
|
|
|
|
*****************************************************************************/
|
|
|
|
|
|
|
|
|
|
Typename: SimpleTypename opt_array_bounds
|
|
|
|
|
{
|
|
|
|
|
$$ = cat2_str($1, $2.str);
|
|
|
|
|
}
|
|
|
|
|
| SETOF SimpleTypename
|
|
|
|
|
{
|
|
|
|
|
$$ = cat2_str(make_str("setof"), $2);
|
|
|
|
|
}
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
SimpleTypename: ConstTypename { $$ = $1; }
|
|
|
|
|
| ConstInterval { $$ = $1; }
|
|
|
|
|
;
|
|
|
|
@ -5113,6 +5106,7 @@ TokenId: ABSOLUTE { $$ = make_str("absolute"); }
|
|
|
|
|
| OIDS { $$ = make_str("oids"); }
|
|
|
|
|
| OPERATOR { $$ = make_str("operator"); }
|
|
|
|
|
| OPTION { $$ = make_str("option"); }
|
|
|
|
|
| OWNER { $$ = make_str("owner"); }
|
|
|
|
|
| PARTIAL { $$ = make_str("partial"); }
|
|
|
|
|
| PASSWORD { $$ = make_str("password"); }
|
|
|
|
|
| PENDANT { $$ = make_str("pendant"); }
|
|
|
|
|