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2917 lines
67 KiB
Plaintext
2917 lines
67 KiB
Plaintext
%{ /* -*-text-*- */
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/*#define YYDEBUG 1*/
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/*-------------------------------------------------------------------------
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*
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* gram.y--
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* POSTGRES SQL YACC rules/actions
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*
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* Copyright (c) 1994, Regents of the University of California
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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 1.42 1997/09/04 13:24:25 vadim Exp $
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*
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* HISTORY
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* AUTHOR DATE MAJOR EVENT
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* Andrew Yu Sept, 1994 POSTQUEL to SQL conversion
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* Andrew Yu Oct, 1994 lispy code conversion
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*
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* NOTES
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* CAPITALS are used to represent terminal symbols.
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* non-capitals are used to represent non-terminals.
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*
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* if you use list, make sure the datum is a node so that the printing
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* routines work
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*
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* WARNING
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* sometimes we assign constants to makeStrings. Make sure we don't free
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* those.
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*
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*-------------------------------------------------------------------------
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*/
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#include <string.h>
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#include <ctype.h>
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#include "postgres.h"
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#include "nodes/parsenodes.h"
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#include "parser/gramparse.h"
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#include "parser/catalog_utils.h"
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#include "parser/parse_query.h"
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#include "storage/smgr.h"
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#include "utils/acl.h"
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#include "catalog/catname.h"
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#include "utils/elog.h"
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#include "access/xact.h"
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static char saved_relname[NAMEDATALEN]; /* need this for complex attributes */
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static bool QueryIsRule = FALSE;
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static Node *saved_In_Expr;
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extern List *parsetree;
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extern int CurScanPosition(void);
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extern int DefaultStartPosition;
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extern int CheckStartPosition;
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extern char *parseString;
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/*
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* If you need access to certain yacc-generated variables and find that
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* they're static by default, uncomment the next line. (this is not a
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* problem, yet.)
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*/
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/*#define __YYSCLASS*/
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static char *xlateSqlType(char *);
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static Node *makeA_Expr(int oper, char *opname, Node *lexpr, Node *rexpr);
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/* old versions of flex define this as a macro */
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#if defined(yywrap)
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#undef yywrap
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#endif /* yywrap */
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%}
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%union {
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double dval;
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int ival;
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char chr;
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char *str;
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bool boolean;
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List *list;
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Node *node;
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Value *value;
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Attr *attr;
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ColumnDef *coldef;
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ConstraintDef *constrdef;
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TypeName *typnam;
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DefElem *defelt;
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ParamString *param;
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SortGroupBy *sortgroupby;
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IndexElem *ielem;
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RangeVar *range;
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RelExpr *relexp;
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TimeRange *trange;
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A_Indices *aind;
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ResTarget *target;
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ParamNo *paramno;
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VersionStmt *vstmt;
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DefineStmt *dstmt;
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PurgeStmt *pstmt;
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RuleStmt *rstmt;
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AppendStmt *astmt;
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}
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%type <node> stmt,
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AddAttrStmt, ClosePortalStmt,
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CopyStmt, CreateStmt, CreateSeqStmt, DefineStmt, DestroyStmt,
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ExtendStmt, FetchStmt, GrantStmt, CreateTrigStmt, DropTrigStmt,
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IndexStmt, MoveStmt, ListenStmt, OptimizableStmt,
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ProcedureStmt, PurgeStmt,
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RecipeStmt, RemoveAggrStmt, RemoveOperStmt, RemoveFuncStmt, RemoveStmt,
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RenameStmt, RevokeStmt, RuleStmt, TransactionStmt, ViewStmt, LoadStmt,
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CreatedbStmt, DestroydbStmt, VacuumStmt, RetrieveStmt, CursorStmt,
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ReplaceStmt, AppendStmt, NotifyStmt, DeleteStmt, ClusterStmt,
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ExplainStmt, VariableSetStmt, VariableShowStmt, VariableResetStmt
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%type <str> txname
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%type <node> SubSelect
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%type <str> join_clause, join_type, join_outer, join_spec
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%type <boolean> join_qual, TriggerActionTime, TriggerForSpec
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%type <str> datetime, TriggerEvents, TriggerFuncArg
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%type <str> relation_name, copy_file_name, copy_delimiter, def_name,
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database_name, access_method_clause, access_method, attr_name,
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class, index_name, name, file_name, recipe_name,
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var_name, aggr_argtype, OptDefault
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%type <constrdef> ConstraintElem, ConstraintDef
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%type <str> opt_id, opt_portal_name,
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before_clause, after_clause, all_Op, MathOp, opt_name, opt_unique,
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result, OptUseOp, opt_class, opt_range_start, opt_range_end,
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SpecialRuleRelation
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%type <str> privileges, operation_commalist, grantee
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%type <chr> operation, TriggerOneEvent
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%type <list> stmtblock, stmtmulti,
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relation_name_list, OptTableElementList, tableElementList,
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OptInherit, OptConstraint, ConstraintList, definition,
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opt_with, def_args, def_name_list, func_argtypes,
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oper_argtypes, OptStmtList, OptStmtBlock, OptStmtMulti,
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opt_column_list, columnList, opt_va_list, va_list,
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sort_clause, sortby_list, index_params, index_list, name_list,
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from_clause, from_list, opt_array_bounds, nest_array_bounds,
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expr_list, default_expr_list, attrs, res_target_list, res_target_list2,
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def_list, opt_indirection, group_clause, groupby_list, TriggerFuncArgs
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%type <list> union_clause, select_list
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%type <list> join_list
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%type <sortgroupby> join_using
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%type <list> extract_list, position_list
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%type <list> substr_list, substr_from, substr_for, trim_list
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%type <list> interval_opts
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%type <boolean> opt_inh_star, opt_binary, opt_instead, opt_with_col, opt_with_copy,
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index_opt_unique, opt_verbose, opt_analyze, opt_null
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%type <ival> copy_dirn, archive_type, OptArchiveType, OptArchiveLocation,
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def_type, opt_direction, remove_type, opt_column, event
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%type <ival> OptLocation, opt_move_where, fetch_how_many
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%type <list> OptSeqList
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%type <defelt> OptSeqElem
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%type <dstmt> def_rest
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%type <pstmt> purge_quals
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%type <astmt> insert_rest
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%type <typnam> Typename, typname, opt_type
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%type <coldef> columnDef
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%type <defelt> def_elem
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%type <node> def_arg, columnElem, where_clause,
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a_expr, a_expr_or_null, AexprConst,
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default_expr, default_expr_or_null,
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in_expr_nodes, not_in_expr_nodes,
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having_clause
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%type <value> NumConst
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%type <attr> event_object, attr
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%type <sortgroupby> groupby
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%type <sortgroupby> sortby
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%type <ielem> index_elem, func_index
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%type <range> from_val
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%type <relexp> relation_expr
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%type <trange> time_range
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%type <target> res_target_el, res_target_el2
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%type <paramno> ParamNo
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%type <ival> Iconst
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%type <str> Sconst
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%type <str> Id, date, var_value, zone_value
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%type <str> ColId
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/*
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* If you make any token changes, remember to:
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* - use "yacc -d" and update parse.h
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* - update the keyword table in parser/keywords.c
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*/
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/* Keywords */
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%token ABORT_TRANS, ACL, ADD, AFTER, AGGREGATE, ALL, ALTER, ANALYZE,
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AND, APPEND, ARCHIVE, ARCH_STORE, AS, ASC,
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BACKWARD, BEFORE, BEGIN_TRANS, BETWEEN, BINARY, BOTH, BY,
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CAST, CHANGE, CHECK, CLOSE, CLUSTER, COLUMN, COMMIT, CONSTRAINT, COPY, CREATE, CROSS,
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CURRENT, CURSOR, DATABASE, DAYINTERVAL, DECLARE, DEFAULT, DELETE, DELIMITERS, DESC,
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DISTINCT, DO, DROP, END_TRANS, EXISTS, EXTEND, EXTRACT,
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FETCH, FOR, FORWARD, FROM, FULL, FUNCTION, GRANT, GROUP,
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HAVING, HEAVY, HOURINTERVAL,
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IN, INDEX, INHERITS, INNERJOIN, INSERT, INSTEAD, INTERVAL, INTO, IS, ISNULL,
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JOIN, LANGUAGE, LEADING, LEFT, LIGHT, LISTEN, LOAD, LOCAL,
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MERGE, MINUTEINTERVAL, MONTHINTERVAL, MOVE,
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NATURAL, NEW, NONE, NOT, NOTHING, NOTIFY, NOTNULL,
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OIDS, ON, OPERATOR, OPTION, OR, ORDER, OUTERJOIN,
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PNULL, POSITION, PRIVILEGES, PROCEDURE, PUBLIC, PURGE, P_TYPE,
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RENAME, REPLACE, RESET, RETRIEVE, RETURNS, REVOKE, RIGHT, ROLLBACK, RULE,
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SECONDINTERVAL, SELECT, SET, SETOF, SHOW, STDIN, STDOUT, STORE, SUBSTRING,
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TABLE, TIME, TO, TRAILING, TRANSACTION, TRIGGER, TRIM,
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UNION, UNIQUE, UPDATE, USING, VACUUM, VALUES,
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VERBOSE, VERSION, VIEW, WHERE, WITH, WORK, YEARINTERVAL, ZONE
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%token EXECUTE, RECIPE, EXPLAIN, LIKE, SEQUENCE
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/* Special keywords, not in the query language - see the "lex" file */
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%token <str> IDENT, SCONST, Op
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%token <ival> ICONST, PARAM
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%token <dval> FCONST
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/* these are not real. they are here so that they gets generated as #define's*/
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%token OP
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/* precedence */
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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 LIKE
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%nonassoc BETWEEN
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%nonassoc IN
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%nonassoc Op
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%nonassoc NOTNULL
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%nonassoc ISNULL
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%nonassoc IS
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%left '+' '-'
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%left '*' '/'
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%left '|' /* this is the relation union op, not logical or */
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%right ':' /* Unary Operators */
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%left ';' /* end of statement or natural log */
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%nonassoc '<' '>'
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%right UMINUS
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%left '.'
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%left '[' ']'
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%nonassoc TYPECAST
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%nonassoc REDUCE
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%left UNION
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%%
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stmtblock: stmtmulti
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{ parsetree = $1; }
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| stmt
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{ parsetree = lcons($1,NIL); }
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;
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stmtmulti: stmtmulti stmt ';'
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{ $$ = lappend($1, $2); }
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| stmtmulti stmt
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{ $$ = lappend($1, $2); }
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| stmt ';'
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{ $$ = lcons($1,NIL); }
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;
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stmt : AddAttrStmt
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| ClosePortalStmt
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| CopyStmt
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| CreateStmt
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| CreateSeqStmt
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| CreateTrigStmt
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| ClusterStmt
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| DefineStmt
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| DestroyStmt
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| DropTrigStmt
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| ExtendStmt
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| ExplainStmt
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| FetchStmt
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| GrantStmt
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| IndexStmt
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| MoveStmt
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| ListenStmt
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| ProcedureStmt
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| PurgeStmt
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| RecipeStmt
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| RemoveAggrStmt
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| RemoveOperStmt
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| RemoveFuncStmt
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| RemoveStmt
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| RenameStmt
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| RevokeStmt
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| OptimizableStmt
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| RuleStmt
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| TransactionStmt
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| ViewStmt
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| LoadStmt
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| CreatedbStmt
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| DestroydbStmt
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| VacuumStmt
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| VariableSetStmt
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| VariableShowStmt
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| VariableResetStmt
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;
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/*****************************************************************************
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*
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* Set PG internal variable
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* SET var_name TO 'var_value'
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*
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*****************************************************************************/
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VariableSetStmt: SET var_name TO var_value
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{
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VariableSetStmt *n = makeNode(VariableSetStmt);
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n->name = $2;
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n->value = $4;
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$$ = (Node *) n;
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}
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| SET var_name '=' var_value
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{
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VariableSetStmt *n = makeNode(VariableSetStmt);
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n->name = $2;
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n->value = $4;
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$$ = (Node *) n;
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}
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| SET TIME ZONE zone_value
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{
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VariableSetStmt *n = makeNode(VariableSetStmt);
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n->name = "timezone";
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n->value = $4;
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$$ = (Node *) n;
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}
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;
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var_value: Sconst { $$ = $1; }
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;
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zone_value: Sconst { $$ = $1; }
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| LOCAL { $$ = NULL; }
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;
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VariableShowStmt: SHOW var_name
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{
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VariableShowStmt *n = makeNode(VariableShowStmt);
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n->name = $2;
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$$ = (Node *) n;
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}
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;
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VariableResetStmt: RESET var_name
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{
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VariableResetStmt *n = makeNode(VariableResetStmt);
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n->name = $2;
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$$ = (Node *) n;
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}
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;
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/*****************************************************************************
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*
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* QUERY :
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* addattr ( attr1 = type1 .. attrn = typen ) to <relname> [*]
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*
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*****************************************************************************/
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AddAttrStmt: ALTER TABLE relation_name opt_inh_star ADD COLUMN columnDef
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{
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AddAttrStmt *n = makeNode(AddAttrStmt);
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n->relname = $3;
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n->inh = $4;
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n->colDef = $7;
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$$ = (Node *)n;
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}
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;
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/* Column definition might include WITH TIME ZONE, but only for the data types
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* called out in SQL92 date/time definitions. So, check explicitly for "timestamp"
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* and "time". - thomas 1997-07-14
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*/
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columnDef: Id Typename opt_with_col OptDefault opt_null
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{
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$$ = makeNode(ColumnDef);
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$$->colname = $1;
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$$->typename = $2;
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$$->typename->timezone = $3;
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$$->defval = $4;
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$$->is_not_null = $5;
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if ($$->typename->timezone
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&& (strcasecmp($$->typename->name, "timestamp")
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&& strcasecmp($$->typename->name, "time")))
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elog(NOTICE,"%s does not use WITH TIME ZONE",$$->typename->name);
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}
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;
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OptDefault: DEFAULT default_expr
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{
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int deflen = CurScanPosition() - DefaultStartPosition;
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char *defval;
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defval = (char*) palloc (deflen + 1);
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memcpy (defval,
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parseString + DefaultStartPosition,
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deflen);
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defval[deflen] = 0;
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$$ = defval;
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}
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| /*EMPTY*/ { $$ = NULL; }
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;
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default_expr_or_null: default_expr
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{ $$ = $1;}
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| Pnull
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{
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A_Const *n = makeNode(A_Const);
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n->val.type = T_Null;
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$$ = (Node *)n;
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}
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default_expr: AexprConst
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{
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if (nodeTag($1) != T_A_Const)
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elog (WARN, "Cannot handle parameter in DEFAULT");
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$$ = $1;
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}
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| '-' default_expr %prec UMINUS
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{ $$ = makeA_Expr(OP, "-", NULL, $2); }
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| default_expr '+' default_expr
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{ $$ = makeA_Expr(OP, "+", $1, $3); }
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| default_expr '-' default_expr
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{ $$ = makeA_Expr(OP, "-", $1, $3); }
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| default_expr '/' default_expr
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{ $$ = makeA_Expr(OP, "/", $1, $3); }
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| default_expr '*' default_expr
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{ $$ = makeA_Expr(OP, "*", $1, $3); }
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| default_expr '<' default_expr
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{ $$ = makeA_Expr(OP, "<", $1, $3); }
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| default_expr '>' default_expr
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{ $$ = makeA_Expr(OP, ">", $1, $3); }
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| default_expr '=' default_expr
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{ $$ = makeA_Expr(OP, "=", $1, $3); }
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| ':' default_expr
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{ $$ = makeA_Expr(OP, ":", NULL, $2); }
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| ';' default_expr
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{ $$ = makeA_Expr(OP, ";", NULL, $2); }
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| '|' default_expr
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{ $$ = makeA_Expr(OP, "|", NULL, $2); }
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| AexprConst TYPECAST Typename
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{
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/* AexprConst can be either A_Const or ParamNo */
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if (nodeTag($1) == T_A_Const) {
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((A_Const *)$1)->typename = $3;
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}else {
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elog (WARN, "Cannot handle parameter in DEFAULT");
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}
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$$ = (Node *)$1;
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}
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| CAST AexprConst AS Typename
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{
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/* AexprConst can be either A_Const or ParamNo */
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if (nodeTag($2) == T_A_Const) {
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((A_Const *)$2)->typename = $4;
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}else {
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elog (WARN, "Cannot handle parameter in DEFAULT");
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}
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$$ = (Node *)$2;
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}
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| '(' default_expr ')'
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{ $$ = $2; }
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| default_expr Op default_expr
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{ $$ = makeA_Expr(OP, $2, $1, $3); }
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| Op default_expr
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{ $$ = makeA_Expr(OP, $1, NULL, $2); }
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| default_expr Op
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{ $$ = makeA_Expr(OP, $2, $1, NULL); }
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| name '(' ')'
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{
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FuncCall *n = makeNode(FuncCall);
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n->funcname = $1;
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n->args = NIL;
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$$ = (Node *)n;
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}
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| name '(' default_expr_list ')'
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{
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FuncCall *n = makeNode(FuncCall);
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n->funcname = $1;
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n->args = $3;
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$$ = (Node *)n;
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}
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;
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default_expr_list: default_expr_or_null
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{ $$ = lcons($1, NIL); }
|
|
| default_expr_list ',' default_expr_or_null
|
|
{ $$ = lappend($1, $3); }
|
|
;
|
|
|
|
opt_null: NOT PNULL { $$ = true; }
|
|
| NOTNULL { $$ = true; }
|
|
| /* EMPTY */ { $$ = false; }
|
|
;
|
|
|
|
opt_with_col: WITH TIME ZONE { $$ = TRUE; }
|
|
| /* EMPTY */ { $$ = FALSE; }
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY :
|
|
* close <optname>
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ClosePortalStmt: CLOSE opt_id
|
|
{
|
|
ClosePortalStmt *n = makeNode(ClosePortalStmt);
|
|
n->portalname = $2;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY :
|
|
* COPY [BINARY] <relname> FROM/TO
|
|
* [USING DELIMITERS <delimiter>]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
CopyStmt: COPY opt_binary relation_name opt_with_copy copy_dirn copy_file_name copy_delimiter
|
|
{
|
|
CopyStmt *n = makeNode(CopyStmt);
|
|
n->binary = $2;
|
|
n->relname = $3;
|
|
n->oids = $4;
|
|
n->direction = $5;
|
|
n->filename = $6;
|
|
n->delimiter = $7;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
copy_dirn: TO
|
|
{ $$ = TO; }
|
|
| FROM
|
|
{ $$ = FROM; }
|
|
;
|
|
|
|
/*
|
|
* copy_file_name NULL indicates stdio is used. Whether stdin or stdout is
|
|
* used depends on the direction. (It really doesn't make sense to copy from
|
|
* stdout. We silently correct the "typo". - AY 9/94
|
|
*/
|
|
copy_file_name: Sconst { $$ = $1; }
|
|
| STDIN { $$ = NULL; }
|
|
| STDOUT { $$ = NULL; }
|
|
;
|
|
|
|
opt_binary: BINARY { $$ = TRUE; }
|
|
| /*EMPTY*/ { $$ = FALSE; }
|
|
;
|
|
|
|
opt_with_copy: WITH OIDS { $$ = TRUE; }
|
|
| /* EMPTY */ { $$ = FALSE; }
|
|
;
|
|
|
|
/*
|
|
* the default copy delimiter is tab but the user can configure it
|
|
*/
|
|
copy_delimiter: USING DELIMITERS Sconst { $$ = $3;}
|
|
| /* EMPTY */ { $$ = "\t"; }
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY :
|
|
* CREATE relname
|
|
*
|
|
*****************************************************************************/
|
|
|
|
CreateStmt: CREATE TABLE relation_name '(' OptTableElementList ')'
|
|
OptInherit OptConstraint OptArchiveType OptLocation
|
|
OptArchiveLocation
|
|
{
|
|
CreateStmt *n = makeNode(CreateStmt);
|
|
n->relname = $3;
|
|
n->tableElts = $5;
|
|
n->inhRelnames = $7;
|
|
n->constraints = $8;
|
|
n->archiveType = $9;
|
|
n->location = $10;
|
|
n->archiveLoc = $11;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
OptTableElementList: tableElementList { $$ = $1; }
|
|
| /* EMPTY */ { $$ = NULL; }
|
|
;
|
|
|
|
tableElementList :
|
|
tableElementList ',' columnDef
|
|
{ $$ = lappend($1, $3); }
|
|
| columnDef
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
|
|
OptArchiveType: ARCHIVE '=' archive_type { $$ = $3; }
|
|
| /*EMPTY*/ { $$ = ARCH_NONE; }
|
|
;
|
|
|
|
archive_type: HEAVY { $$ = ARCH_HEAVY; }
|
|
| LIGHT { $$ = ARCH_LIGHT; }
|
|
| NONE { $$ = ARCH_NONE; }
|
|
;
|
|
|
|
OptLocation: STORE '=' Sconst
|
|
{ $$ = smgrin($3); }
|
|
| /*EMPTY*/
|
|
{ $$ = -1; }
|
|
;
|
|
|
|
OptArchiveLocation: ARCH_STORE '=' Sconst
|
|
{ $$ = smgrin($3); }
|
|
| /*EMPTY*/
|
|
{ $$ = -1; }
|
|
;
|
|
|
|
OptInherit: INHERITS '(' relation_name_list ')' { $$ = $3; }
|
|
| /*EMPTY*/ { $$ = NIL; }
|
|
;
|
|
|
|
OptConstraint: ConstraintList { $$ = $1; }
|
|
| { $$ = NULL; }
|
|
;
|
|
|
|
ConstraintList :
|
|
ConstraintList ',' ConstraintElem
|
|
{ $$ = lappend($1, $3); }
|
|
| ConstraintElem
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
ConstraintElem:
|
|
CONSTRAINT name ConstraintDef
|
|
{
|
|
$3->name = $2;
|
|
$$ = $3;
|
|
}
|
|
| ConstraintDef { $$ = $1; }
|
|
;
|
|
|
|
ConstraintDef: CHECK a_expr {
|
|
ConstraintDef *constr = palloc (sizeof(ConstraintDef));
|
|
int chklen = CurScanPosition() - CheckStartPosition;
|
|
char *check;
|
|
|
|
check = (char*) palloc (chklen + 1);
|
|
memcpy (check,
|
|
parseString + CheckStartPosition,
|
|
chklen);
|
|
check[chklen] = 0;
|
|
constr->type = CONSTR_CHECK;
|
|
constr->name = NULL;
|
|
constr->def = (void*) check;
|
|
$$ = constr;
|
|
}
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY :
|
|
* CREATE SEQUENCE seqname
|
|
*
|
|
*****************************************************************************/
|
|
|
|
CreateSeqStmt: CREATE SEQUENCE relation_name OptSeqList
|
|
{
|
|
CreateSeqStmt *n = makeNode(CreateSeqStmt);
|
|
n->seqname = $3;
|
|
n->options = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
OptSeqList:
|
|
OptSeqList OptSeqElem
|
|
{ $$ = lappend($1, $2); }
|
|
| { $$ = NIL; }
|
|
;
|
|
|
|
OptSeqElem: IDENT NumConst
|
|
{
|
|
$$ = makeNode(DefElem);
|
|
$$->defname = $1;
|
|
$$->arg = (Node *)$2;
|
|
}
|
|
| IDENT
|
|
{
|
|
$$ = makeNode(DefElem);
|
|
$$->defname = $1;
|
|
$$->arg = (Node *)NULL;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERIES :
|
|
* CREATE TRIGGER ...
|
|
* DROP TRIGGER ...
|
|
*
|
|
*****************************************************************************/
|
|
|
|
CreateTrigStmt: CREATE TRIGGER name TriggerActionTime TriggerEvents ON
|
|
relation_name TriggerForSpec EXECUTE PROCEDURE
|
|
name '(' TriggerFuncArgs ')'
|
|
{
|
|
CreateTrigStmt *n = makeNode(CreateTrigStmt);
|
|
n->trigname = $3;
|
|
n->relname = $7;
|
|
n->funcname = $11;
|
|
n->args = $13;
|
|
n->before = $4;
|
|
n->row = $8;
|
|
memcpy (n->actions, $5, 4);
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
TriggerActionTime: BEFORE { $$ = true; }
|
|
| AFTER { $$ = false; }
|
|
;
|
|
|
|
TriggerEvents: TriggerOneEvent
|
|
{
|
|
char *e = palloc (4);
|
|
e[0] = $1; e[1] = 0; $$ = e;
|
|
}
|
|
| TriggerOneEvent OR TriggerOneEvent
|
|
{
|
|
char *e = palloc (4);
|
|
e[0] = $1; e[1] = $3; e[2] = 0; $$ = e;
|
|
}
|
|
| TriggerOneEvent OR TriggerOneEvent OR TriggerOneEvent
|
|
{
|
|
char *e = palloc (4);
|
|
e[0] = $1; e[1] = $3; e[2] = $5; e[3] = 0;
|
|
$$ = e;
|
|
}
|
|
;
|
|
|
|
TriggerOneEvent: INSERT { $$ = 'i'; }
|
|
| DELETE { $$ = 'd'; }
|
|
| UPDATE { $$ = 'u'; }
|
|
;
|
|
|
|
TriggerForSpec: FOR name name
|
|
{
|
|
if ( strcmp ($2, "each") != 0 )
|
|
elog (WARN, "parser: syntax error near %s", $2);
|
|
if ( strcmp ($3, "row") == 0 )
|
|
$$ = true;
|
|
else if ( strcmp ($3, "statement") == 0 )
|
|
$$ = false;
|
|
else
|
|
elog (WARN, "parser: syntax error near %s", $3);
|
|
}
|
|
;
|
|
|
|
TriggerFuncArgs: TriggerFuncArg
|
|
{ $$ = lcons($1, NIL); }
|
|
| TriggerFuncArgs ',' TriggerFuncArg
|
|
{ $$ = lappend($1, $3); }
|
|
| /* EMPTY */ { $$ = NIL; }
|
|
;
|
|
|
|
TriggerFuncArg: ICONST
|
|
{
|
|
char *s = (char *) palloc (256);
|
|
sprintf (s, "%d", $1);
|
|
$$ = s;
|
|
}
|
|
| Sconst { $$ = $1; }
|
|
;
|
|
|
|
DropTrigStmt: DROP TRIGGER name ON relation_name
|
|
{
|
|
DropTrigStmt *n = makeNode(DropTrigStmt);
|
|
n->trigname = $3;
|
|
n->relname = $5;
|
|
$$ = (Node *) n;
|
|
}
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY :
|
|
* define (type,operator,aggregate)
|
|
*
|
|
*****************************************************************************/
|
|
|
|
DefineStmt: CREATE def_type def_rest
|
|
{
|
|
$3->defType = $2;
|
|
$$ = (Node *)$3;
|
|
}
|
|
;
|
|
|
|
def_rest: def_name definition
|
|
{
|
|
$$ = makeNode(DefineStmt);
|
|
$$->defname = $1;
|
|
$$->definition = $2;
|
|
}
|
|
;
|
|
|
|
def_type: OPERATOR { $$ = OPERATOR; }
|
|
| Type { $$ = P_TYPE; }
|
|
| AGGREGATE { $$ = AGGREGATE; }
|
|
;
|
|
|
|
def_name: Id | MathOp | Op
|
|
;
|
|
|
|
|
|
definition: '(' def_list ')' { $$ = $2; }
|
|
;
|
|
|
|
|
|
def_list: def_elem
|
|
{ $$ = lcons($1, NIL); }
|
|
| def_list ',' def_elem
|
|
{ $$ = lappend($1, $3); }
|
|
;
|
|
|
|
def_elem: def_name '=' def_arg
|
|
{
|
|
$$ = makeNode(DefElem);
|
|
$$->defname = $1;
|
|
$$->arg = (Node *)$3;
|
|
}
|
|
| def_name
|
|
{
|
|
$$ = makeNode(DefElem);
|
|
$$->defname = $1;
|
|
$$->arg = (Node *)NULL;
|
|
}
|
|
| DEFAULT '=' def_arg
|
|
{
|
|
$$ = makeNode(DefElem);
|
|
$$->defname = (char*) palloc (8);
|
|
strcpy ($$->defname, "default");
|
|
$$->arg = (Node *)$3;
|
|
}
|
|
;
|
|
|
|
def_arg: Id { $$ = (Node *)makeString($1); }
|
|
| all_Op { $$ = (Node *)makeString($1); }
|
|
| NumConst { $$ = (Node *)$1; /* already a Value */ }
|
|
| Sconst { $$ = (Node *)makeString($1); }
|
|
| SETOF Id {
|
|
TypeName *n = makeNode(TypeName);
|
|
n->name = $2;
|
|
n->setof = TRUE;
|
|
n->arrayBounds = NULL;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* destroy <relname1> [, <relname2> .. <relnameN> ]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
DestroyStmt: DROP TABLE relation_name_list
|
|
{
|
|
DestroyStmt *n = makeNode(DestroyStmt);
|
|
n->relNames = $3;
|
|
n->sequence = false;
|
|
$$ = (Node *)n;
|
|
}
|
|
| DROP SEQUENCE relation_name_list
|
|
{
|
|
DestroyStmt *n = makeNode(DestroyStmt);
|
|
n->relNames = $3;
|
|
n->sequence = true;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* fetch [forward | backward] [number | all ] [ in <portalname> ]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
FetchStmt: FETCH opt_direction fetch_how_many opt_portal_name
|
|
{
|
|
FetchStmt *n = makeNode(FetchStmt);
|
|
n->direction = $2;
|
|
n->howMany = $3;
|
|
n->portalname = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
opt_direction: FORWARD { $$ = FORWARD; }
|
|
| BACKWARD { $$ = BACKWARD; }
|
|
| /*EMPTY*/ { $$ = FORWARD; /* default */ }
|
|
;
|
|
|
|
fetch_how_many: Iconst
|
|
{ $$ = $1;
|
|
if ($1 <= 0) elog(WARN,"Please specify nonnegative count for fetch"); }
|
|
| ALL { $$ = 0; /* 0 means fetch all tuples*/}
|
|
| /*EMPTY*/ { $$ = 1; /*default*/ }
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* GRANT [privileges] ON [relation_name_list] TO [GROUP] grantee
|
|
*
|
|
*****************************************************************************/
|
|
|
|
GrantStmt: GRANT privileges ON relation_name_list TO grantee opt_with_grant
|
|
{
|
|
$$ = (Node*)makeAclStmt($2,$4,$6,'+');
|
|
free($2);
|
|
free($6);
|
|
}
|
|
;
|
|
|
|
privileges: ALL PRIVILEGES
|
|
{
|
|
$$ = aclmakepriv("rwaR",0);
|
|
}
|
|
| ALL
|
|
{
|
|
$$ = aclmakepriv("rwaR",0);
|
|
}
|
|
| operation_commalist {
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
operation_commalist: operation {
|
|
$$ = aclmakepriv("",$1);
|
|
}
|
|
| operation_commalist ',' operation
|
|
{
|
|
$$ = aclmakepriv($1,$3);
|
|
free($1);
|
|
}
|
|
;
|
|
|
|
operation: SELECT {
|
|
$$ = ACL_MODE_RD_CHR;
|
|
}
|
|
| INSERT {
|
|
$$ = ACL_MODE_AP_CHR;
|
|
}
|
|
| UPDATE {
|
|
$$ = ACL_MODE_WR_CHR;
|
|
}
|
|
| DELETE {
|
|
$$ = ACL_MODE_WR_CHR;
|
|
}
|
|
| RULE {
|
|
$$ = ACL_MODE_RU_CHR;
|
|
}
|
|
;
|
|
|
|
grantee: PUBLIC {
|
|
$$ = aclmakeuser("A","");
|
|
}
|
|
| GROUP Id {
|
|
$$ = aclmakeuser("G",$2);
|
|
}
|
|
| Id {
|
|
$$ = aclmakeuser("U",$1);
|
|
}
|
|
;
|
|
|
|
opt_with_grant : /* empty */
|
|
| WITH GRANT OPTION
|
|
{
|
|
yyerror("WITH GRANT OPTION is not supported. Only relation owners can set privileges");
|
|
}
|
|
;
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* REVOKE [privileges] ON [relation_name] FROM [user]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
RevokeStmt: REVOKE privileges ON relation_name_list FROM grantee
|
|
{
|
|
$$ = (Node*)makeAclStmt($2,$4,$6,'-');
|
|
free($2);
|
|
free($6);
|
|
}
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* move [<dirn>] [<whereto>] [<portalname>]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
MoveStmt: MOVE opt_direction opt_move_where opt_portal_name
|
|
{
|
|
MoveStmt *n = makeNode(MoveStmt);
|
|
n->direction = $2;
|
|
n->to = FALSE;
|
|
n->where = $3;
|
|
n->portalname = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
| MOVE opt_direction TO Iconst opt_portal_name
|
|
{
|
|
MoveStmt *n = makeNode(MoveStmt);
|
|
n->direction = $2;
|
|
n->to = TRUE;
|
|
n->where = $4;
|
|
n->portalname = $5;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
opt_move_where: Iconst { $$ = $1; }
|
|
| /*EMPTY*/ { $$ = 1; /* default */ }
|
|
;
|
|
|
|
opt_portal_name: IN name { $$ = $2;}
|
|
| /*EMPTY*/ { $$ = NULL; }
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* define [archive] index <indexname> on <relname>
|
|
* using <access> "(" (<col> with <op>)+ ")" [with
|
|
* <target_list>]
|
|
*
|
|
* [where <qual>] is not supported anymore
|
|
*****************************************************************************/
|
|
|
|
IndexStmt: CREATE index_opt_unique INDEX index_name ON relation_name
|
|
access_method_clause '(' index_params ')' opt_with
|
|
{
|
|
/* should check that access_method is valid,
|
|
etc ... but doesn't */
|
|
IndexStmt *n = makeNode(IndexStmt);
|
|
n->unique = $2;
|
|
n->idxname = $4;
|
|
n->relname = $6;
|
|
n->accessMethod = $7;
|
|
n->indexParams = $9;
|
|
n->withClause = $11;
|
|
n->whereClause = NULL;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
access_method_clause: USING access_method { $$ = $2; }
|
|
| /* empty -- 'btree' is default access method */
|
|
{ $$ = "btree"; }
|
|
;
|
|
|
|
index_opt_unique: UNIQUE { $$ = TRUE; }
|
|
| /*empty*/ { $$ = FALSE; }
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* extend index <indexname> [where <qual>]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ExtendStmt: EXTEND INDEX index_name where_clause
|
|
{
|
|
ExtendStmt *n = makeNode(ExtendStmt);
|
|
n->idxname = $3;
|
|
n->whereClause = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* execute recipe <recipeName>
|
|
*
|
|
*****************************************************************************/
|
|
|
|
RecipeStmt: EXECUTE RECIPE recipe_name
|
|
{
|
|
RecipeStmt *n;
|
|
if (!IsTransactionBlock())
|
|
elog(WARN, "EXECUTE RECIPE may only be used in begin/end transaction blocks.");
|
|
|
|
n = makeNode(RecipeStmt);
|
|
n->recipeName = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* define function <fname>
|
|
* (language = <lang>, returntype = <typename>
|
|
* [, arch_pct = <percentage | pre-defined>]
|
|
* [, disk_pct = <percentage | pre-defined>]
|
|
* [, byte_pct = <percentage | pre-defined>]
|
|
* [, perbyte_cpu = <int | pre-defined>]
|
|
* [, percall_cpu = <int | pre-defined>]
|
|
* [, iscachable])
|
|
* [arg is (<type-1> { , <type-n>})]
|
|
* as <filename or code in language as appropriate>
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ProcedureStmt: CREATE FUNCTION def_name def_args
|
|
RETURNS def_arg opt_with AS Sconst LANGUAGE Sconst
|
|
{
|
|
ProcedureStmt *n = makeNode(ProcedureStmt);
|
|
n->funcname = $3;
|
|
n->defArgs = $4;
|
|
n->returnType = (Node *)$6;
|
|
n->withClause = $7;
|
|
n->as = $9;
|
|
n->language = $11;
|
|
$$ = (Node *)n;
|
|
};
|
|
|
|
opt_with: WITH definition { $$ = $2; }
|
|
| /* EMPTY */ { $$ = NIL; }
|
|
;
|
|
|
|
def_args: '(' def_name_list ')' { $$ = $2; }
|
|
| '(' ')' { $$ = NIL; }
|
|
;
|
|
|
|
def_name_list: name_list;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* purge <relname> [before <date>] [after <date>]
|
|
* or
|
|
* purge <relname> [after <date>] [before <date>]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
PurgeStmt: PURGE relation_name purge_quals
|
|
{
|
|
$3->relname = $2;
|
|
$$ = (Node *)$3;
|
|
}
|
|
;
|
|
|
|
purge_quals: before_clause
|
|
{
|
|
$$ = makeNode(PurgeStmt);
|
|
$$->beforeDate = $1;
|
|
$$->afterDate = NULL;
|
|
}
|
|
| after_clause
|
|
{
|
|
$$ = makeNode(PurgeStmt);
|
|
$$->beforeDate = NULL;
|
|
$$->afterDate = $1;
|
|
}
|
|
| before_clause after_clause
|
|
{
|
|
$$ = makeNode(PurgeStmt);
|
|
$$->beforeDate = $1;
|
|
$$->afterDate = $2;
|
|
}
|
|
| after_clause before_clause
|
|
{
|
|
$$ = makeNode(PurgeStmt);
|
|
$$->beforeDate = $2;
|
|
$$->afterDate = $1;
|
|
}
|
|
| /*EMPTY*/
|
|
{
|
|
$$ = makeNode(PurgeStmt);
|
|
$$->beforeDate = NULL;
|
|
$$->afterDate = NULL;
|
|
}
|
|
;
|
|
|
|
before_clause: BEFORE date { $$ = $2; }
|
|
after_clause: AFTER date { $$ = $2; }
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
*
|
|
* remove function <funcname>
|
|
* (REMOVE FUNCTION "funcname" (arg1, arg2, ...))
|
|
* remove aggregate <aggname>
|
|
* (REMOVE AGGREGATE "aggname" "aggtype")
|
|
* remove operator <opname>
|
|
* (REMOVE OPERATOR "opname" (leftoperand_typ rightoperand_typ))
|
|
* remove type <typename>
|
|
* (REMOVE TYPE "typename")
|
|
* remove rule <rulename>
|
|
* (REMOVE RULE "rulename")
|
|
*
|
|
*****************************************************************************/
|
|
|
|
RemoveStmt: DROP remove_type name
|
|
{
|
|
RemoveStmt *n = makeNode(RemoveStmt);
|
|
n->removeType = $2;
|
|
n->name = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
remove_type: Type { $$ = P_TYPE; }
|
|
| INDEX { $$ = INDEX; }
|
|
| RULE { $$ = RULE; }
|
|
| VIEW { $$ = VIEW; }
|
|
;
|
|
|
|
RemoveAggrStmt: DROP AGGREGATE name aggr_argtype
|
|
{
|
|
RemoveAggrStmt *n = makeNode(RemoveAggrStmt);
|
|
n->aggname = $3;
|
|
n->aggtype = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
aggr_argtype: name { $$ = $1; }
|
|
| '*' { $$ = NULL; }
|
|
;
|
|
|
|
RemoveFuncStmt: DROP FUNCTION name '(' func_argtypes ')'
|
|
{
|
|
RemoveFuncStmt *n = makeNode(RemoveFuncStmt);
|
|
n->funcname = $3;
|
|
n->args = $5;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
func_argtypes: name_list { $$ = $1; }
|
|
| /*EMPTY*/ { $$ = NIL; }
|
|
;
|
|
|
|
RemoveOperStmt: DROP OPERATOR all_Op '(' oper_argtypes ')'
|
|
{
|
|
RemoveOperStmt *n = makeNode(RemoveOperStmt);
|
|
n->opname = $3;
|
|
n->args = $5;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
all_Op: Op | MathOp;
|
|
|
|
MathOp: '+' { $$ = "+"; }
|
|
| '-' { $$ = "-"; }
|
|
| '*' { $$ = "*"; }
|
|
| '/' { $$ = "/"; }
|
|
| '<' { $$ = "<"; }
|
|
| '>' { $$ = ">"; }
|
|
| '=' { $$ = "="; }
|
|
;
|
|
|
|
oper_argtypes: name
|
|
{
|
|
elog(WARN, "parser: argument type missing (use NONE for unary operators)");
|
|
}
|
|
| name ',' name
|
|
{ $$ = makeList(makeString($1), makeString($3), -1); }
|
|
| NONE ',' name /* left unary */
|
|
{ $$ = makeList(NULL, makeString($3), -1); }
|
|
| name ',' NONE /* right unary */
|
|
{ $$ = makeList(makeString($1), NULL, -1); }
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* rename <attrname1> in <relname> [*] to <attrname2>
|
|
* rename <relname1> to <relname2>
|
|
*
|
|
*****************************************************************************/
|
|
|
|
RenameStmt: ALTER TABLE relation_name opt_inh_star
|
|
RENAME opt_column opt_name TO name
|
|
{
|
|
RenameStmt *n = makeNode(RenameStmt);
|
|
n->relname = $3;
|
|
n->inh = $4;
|
|
n->column = $7;
|
|
n->newname = $9;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
opt_name: name { $$ = $1; }
|
|
| /*EMPTY*/ { $$ = NULL; }
|
|
;
|
|
|
|
opt_column: COLUMN { $$ = COLUMN; }
|
|
| /*EMPTY*/ { $$ = 0; }
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY: Define Rewrite Rule , Define Tuple Rule
|
|
* Define Rule <old rules >
|
|
*
|
|
* only rewrite rule is supported -- ay 9/94
|
|
*
|
|
*****************************************************************************/
|
|
|
|
RuleStmt: CREATE RULE name AS
|
|
{ QueryIsRule=TRUE; }
|
|
ON event TO event_object where_clause
|
|
DO opt_instead OptStmtList
|
|
{
|
|
RuleStmt *n = makeNode(RuleStmt);
|
|
n->rulename = $3;
|
|
n->event = $7;
|
|
n->object = $9;
|
|
n->whereClause = $10;
|
|
n->instead = $12;
|
|
n->actions = $13;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
OptStmtList: NOTHING { $$ = NIL; }
|
|
| OptimizableStmt { $$ = lcons($1, NIL); }
|
|
| '[' OptStmtBlock ']' { $$ = $2; }
|
|
;
|
|
|
|
OptStmtBlock: OptStmtMulti
|
|
{ $$ = $1; }
|
|
| OptimizableStmt
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
OptStmtMulti: OptStmtMulti OptimizableStmt ';'
|
|
{ $$ = lappend($1, $2); }
|
|
| OptStmtMulti OptimizableStmt
|
|
{ $$ = lappend($1, $2); }
|
|
| OptimizableStmt ';'
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
event_object: relation_name '.' attr_name
|
|
{
|
|
$$ = makeNode(Attr);
|
|
$$->relname = $1;
|
|
$$->paramNo = NULL;
|
|
$$->attrs = lcons(makeString($3), NIL);
|
|
$$->indirection = NIL;
|
|
}
|
|
| relation_name
|
|
{
|
|
$$ = makeNode(Attr);
|
|
$$->relname = $1;
|
|
$$->paramNo = NULL;
|
|
$$->attrs = NIL;
|
|
$$->indirection = NIL;
|
|
}
|
|
;
|
|
|
|
/* change me to select, update, etc. some day */
|
|
event: SELECT { $$ = CMD_SELECT; }
|
|
| UPDATE { $$ = CMD_UPDATE; }
|
|
| DELETE { $$ = CMD_DELETE; }
|
|
| INSERT { $$ = CMD_INSERT; }
|
|
;
|
|
|
|
opt_instead: INSTEAD { $$ = TRUE; }
|
|
| /* EMPTY */ { $$ = FALSE; }
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* NOTIFY <relation_name> can appear both in rule bodies and
|
|
* as a query-level command
|
|
*
|
|
*****************************************************************************/
|
|
|
|
NotifyStmt: NOTIFY relation_name
|
|
{
|
|
NotifyStmt *n = makeNode(NotifyStmt);
|
|
n->relname = $2;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
ListenStmt: LISTEN relation_name
|
|
{
|
|
ListenStmt *n = makeNode(ListenStmt);
|
|
n->relname = $2;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* Transactions:
|
|
*
|
|
* abort transaction
|
|
* (ABORT)
|
|
* begin transaction
|
|
* (BEGIN)
|
|
* end transaction
|
|
* (END)
|
|
*
|
|
*****************************************************************************/
|
|
|
|
TransactionStmt: ABORT_TRANS TRANSACTION
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = ABORT_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| BEGIN_TRANS TRANSACTION
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = BEGIN_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| BEGIN_TRANS WORK
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = BEGIN_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| COMMIT WORK
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = END_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| END_TRANS TRANSACTION
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = END_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| ROLLBACK WORK
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = ABORT_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
|
|
| ABORT_TRANS
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = ABORT_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| BEGIN_TRANS
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = BEGIN_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| COMMIT
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = END_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
|
|
| END_TRANS
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = END_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
| ROLLBACK
|
|
{
|
|
TransactionStmt *n = makeNode(TransactionStmt);
|
|
n->command = ABORT_TRANS;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* define view <viewname> '('target-list ')' [where <quals> ]
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ViewStmt: CREATE VIEW name AS RetrieveStmt
|
|
{
|
|
ViewStmt *n = makeNode(ViewStmt);
|
|
n->viewname = $3;
|
|
n->query = (Query *)$5;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* load "filename"
|
|
*
|
|
*****************************************************************************/
|
|
|
|
LoadStmt: LOAD file_name
|
|
{
|
|
LoadStmt *n = makeNode(LoadStmt);
|
|
n->filename = $2;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* createdb dbname
|
|
*
|
|
*****************************************************************************/
|
|
|
|
CreatedbStmt: CREATE DATABASE database_name
|
|
{
|
|
CreatedbStmt *n = makeNode(CreatedbStmt);
|
|
n->dbname = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* destroydb dbname
|
|
*
|
|
*****************************************************************************/
|
|
|
|
DestroydbStmt: DROP DATABASE database_name
|
|
{
|
|
DestroydbStmt *n = makeNode(DestroydbStmt);
|
|
n->dbname = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* cluster <index_name> on <relation_name>
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ClusterStmt: CLUSTER index_name ON relation_name
|
|
{
|
|
ClusterStmt *n = makeNode(ClusterStmt);
|
|
n->relname = $4;
|
|
n->indexname = $2;
|
|
$$ = (Node*)n;
|
|
}
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* vacuum
|
|
*
|
|
*****************************************************************************/
|
|
|
|
VacuumStmt: VACUUM opt_verbose opt_analyze
|
|
{
|
|
VacuumStmt *n = makeNode(VacuumStmt);
|
|
n->verbose = $2;
|
|
n->analyze = $3;
|
|
n->vacrel = NULL;
|
|
n->va_spec = NIL;
|
|
$$ = (Node *)n;
|
|
}
|
|
| VACUUM opt_verbose relation_name opt_analyze opt_va_list
|
|
{
|
|
VacuumStmt *n = makeNode(VacuumStmt);
|
|
n->verbose = $2;
|
|
n->analyze = $4;
|
|
n->vacrel = $3;
|
|
n->va_spec = $5;
|
|
if ( $5 != NIL && !$4 )
|
|
elog (WARN, "parser: syntax error at or near \"(\"");
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
opt_verbose: VERBOSE { $$ = TRUE; }
|
|
| /* EMPTY */ { $$ = FALSE; }
|
|
;
|
|
|
|
opt_analyze: ANALYZE { $$ = TRUE; }
|
|
| /* EMPTY */ { $$ = FALSE; }
|
|
;
|
|
|
|
opt_va_list: '(' va_list ')'
|
|
{ $$ = $2; }
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
va_list: name
|
|
{ $$=lcons($1,NIL); }
|
|
| va_list ',' name
|
|
{ $$=lappend($1,$3); }
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* EXPLAIN query
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ExplainStmt: EXPLAIN opt_verbose OptimizableStmt
|
|
{
|
|
ExplainStmt *n = makeNode(ExplainStmt);
|
|
n->verbose = $2;
|
|
n->query = (Query*)$3;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
/*****************************************************************************
|
|
* *
|
|
* Optimizable Stmts: *
|
|
* *
|
|
* one of the five queries processed by the planner *
|
|
* *
|
|
* [ultimately] produces query-trees as specified *
|
|
* in the query-spec document in ~postgres/ref *
|
|
* *
|
|
*****************************************************************************/
|
|
|
|
OptimizableStmt: RetrieveStmt
|
|
| CursorStmt
|
|
| ReplaceStmt
|
|
| AppendStmt
|
|
| NotifyStmt
|
|
| DeleteStmt /* by default all are $$=$1 */
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* INSERT STATEMENTS
|
|
*
|
|
*****************************************************************************/
|
|
|
|
AppendStmt: INSERT INTO relation_name opt_column_list insert_rest
|
|
{
|
|
$5->relname = $3;
|
|
$5->cols = $4;
|
|
$$ = (Node *)$5;
|
|
}
|
|
;
|
|
|
|
insert_rest: VALUES '(' res_target_list2 ')'
|
|
{
|
|
$$ = makeNode(AppendStmt);
|
|
$$->targetList = $3;
|
|
$$->fromClause = NIL;
|
|
$$->whereClause = NULL;
|
|
}
|
|
| SELECT res_target_list2 from_clause where_clause
|
|
{
|
|
$$ = makeNode(AppendStmt);
|
|
$$->targetList = $2;
|
|
$$->fromClause = $3;
|
|
$$->whereClause = $4;
|
|
}
|
|
;
|
|
|
|
opt_column_list: '(' columnList ')' { $$ = $2; }
|
|
| /*EMPTY*/ { $$ = NIL; }
|
|
;
|
|
|
|
columnList:
|
|
columnList ',' columnElem
|
|
{ $$ = lappend($1, $3); }
|
|
| columnElem
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
columnElem: Id opt_indirection
|
|
{
|
|
Ident *id = makeNode(Ident);
|
|
id->name = $1;
|
|
id->indirection = $2;
|
|
$$ = (Node *)id;
|
|
}
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* DELETE STATEMENTS
|
|
*
|
|
*****************************************************************************/
|
|
|
|
DeleteStmt: DELETE FROM relation_name
|
|
where_clause
|
|
{
|
|
DeleteStmt *n = makeNode(DeleteStmt);
|
|
n->relname = $3;
|
|
n->whereClause = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* ReplaceStmt (UPDATE)
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ReplaceStmt: UPDATE relation_name
|
|
SET res_target_list
|
|
from_clause
|
|
where_clause
|
|
{
|
|
ReplaceStmt *n = makeNode(ReplaceStmt);
|
|
n->relname = $2;
|
|
n->targetList = $4;
|
|
n->fromClause = $5;
|
|
n->whereClause = $6;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* CURSOR STATEMENTS
|
|
*
|
|
*****************************************************************************/
|
|
|
|
CursorStmt: DECLARE name opt_binary CURSOR FOR
|
|
SELECT opt_unique res_target_list2
|
|
from_clause where_clause group_clause sort_clause
|
|
{
|
|
CursorStmt *n = makeNode(CursorStmt);
|
|
|
|
/* from PORTAL name */
|
|
/*
|
|
* 15 august 1991 -- since 3.0 postgres does locking
|
|
* right, we discovered that portals were violating
|
|
* locking protocol. portal locks cannot span xacts.
|
|
* as a short-term fix, we installed the check here.
|
|
* -- mao
|
|
*/
|
|
if (!IsTransactionBlock())
|
|
elog(WARN, "Named portals may only be used in begin/end transaction blocks.");
|
|
|
|
n->portalname = $2;
|
|
n->binary = $3;
|
|
n->unique = $7;
|
|
n->targetList = $8;
|
|
n->fromClause = $9;
|
|
n->whereClause = $10;
|
|
n->groupClause = $11;
|
|
n->sortClause = $12;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* QUERY:
|
|
* SELECT STATEMENTS
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
RetrieveStmt: SELECT opt_unique res_target_list2
|
|
result from_clause where_clause
|
|
group_clause having_clause
|
|
sort_clause
|
|
{
|
|
RetrieveStmt *n = makeNode(RetrieveStmt);
|
|
n->unique = $2;
|
|
n->targetList = $3;
|
|
n->into = $4;
|
|
n->fromClause = $5;
|
|
n->whereClause = $6;
|
|
n->groupClause = $7;
|
|
n->havingClause = $8;
|
|
n->sortClause = $9;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
RetrieveStmt: Select UNION select_list sort_clause
|
|
| Select sort_clause
|
|
Select: SELECT opt_unique res_target_list2
|
|
result from_clause where_clause
|
|
group_clause having_clause
|
|
{
|
|
Select *n = makeNode(Select);
|
|
n->unique = $2;
|
|
n->targetList = $3;
|
|
n->into = $4;
|
|
n->fromClause = $5;
|
|
n->whereClause = $6;
|
|
n->groupClause = $7;
|
|
n->havingClause = $8;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
******************************************************************************/
|
|
|
|
RetrieveStmt: SELECT opt_unique res_target_list2
|
|
result from_clause where_clause
|
|
group_clause having_clause
|
|
union_clause sort_clause
|
|
{
|
|
RetrieveStmt *n = makeNode(RetrieveStmt);
|
|
n->unique = $2;
|
|
n->targetList = $3;
|
|
n->into = $4;
|
|
n->fromClause = $5;
|
|
n->whereClause = $6;
|
|
n->groupClause = $7;
|
|
n->havingClause = $8;
|
|
n->selectClause = $9;
|
|
n->sortClause = $10;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
union_clause: UNION select_list { $$ = $2; }
|
|
| /*EMPTY*/ { $$ = NIL; }
|
|
;
|
|
|
|
select_list: select_list UNION SubSelect
|
|
{ $$ = lappend($1, $3); }
|
|
| SubSelect
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
SubSelect: SELECT opt_unique res_target_list2
|
|
result from_clause where_clause
|
|
group_clause having_clause
|
|
{
|
|
SubSelect *n = makeNode(SubSelect);
|
|
n->unique = $2;
|
|
n->targetList = $3;
|
|
n->fromClause = $5;
|
|
n->whereClause = $6;
|
|
n->groupClause = $7;
|
|
n->havingClause = $8;
|
|
$$ = (Node *)n;
|
|
}
|
|
;
|
|
|
|
result: INTO TABLE relation_name
|
|
{ $$= $3; /* should check for archive level */ }
|
|
| /*EMPTY*/
|
|
{ $$ = NULL; }
|
|
;
|
|
|
|
opt_unique: DISTINCT { $$ = "*"; }
|
|
| DISTINCT ON Id { $$ = $3; }
|
|
| /*EMPTY*/ { $$ = NULL;}
|
|
;
|
|
|
|
sort_clause: ORDER BY sortby_list { $$ = $3; }
|
|
| /*EMPTY*/ { $$ = NIL; }
|
|
;
|
|
|
|
sortby_list: sortby
|
|
{ $$ = lcons($1, NIL); }
|
|
| sortby_list ',' sortby
|
|
{ $$ = lappend($1, $3); }
|
|
;
|
|
|
|
sortby: Id OptUseOp
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = 0;
|
|
$$->range = NULL;
|
|
$$->name = $1;
|
|
$$->useOp = $2;
|
|
}
|
|
| Id '.' Id OptUseOp
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = 0;
|
|
$$->range = $1;
|
|
$$->name = $3;
|
|
$$->useOp = $4;
|
|
}
|
|
| Iconst OptUseOp
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = $1;
|
|
$$->range = NULL;
|
|
$$->name = NULL;
|
|
$$->useOp = $2;
|
|
}
|
|
;
|
|
|
|
OptUseOp: USING Op { $$ = $2; }
|
|
| USING '<' { $$ = "<"; }
|
|
| USING '>' { $$ = ">"; }
|
|
| ASC { $$ = "<"; }
|
|
| DESC { $$ = ">"; }
|
|
| /*EMPTY*/ { $$ = "<"; /*default*/ }
|
|
;
|
|
|
|
index_params: index_list { $$ = $1; }
|
|
| func_index { $$ = lcons($1,NIL); }
|
|
;
|
|
|
|
index_list:
|
|
index_list ',' index_elem
|
|
{ $$ = lappend($1, $3); }
|
|
| index_elem
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
func_index: name '(' name_list ')' opt_type opt_class
|
|
{
|
|
$$ = makeNode(IndexElem);
|
|
$$->name = $1;
|
|
$$->args = $3;
|
|
$$->class = $6;
|
|
$$->tname = $5;
|
|
}
|
|
;
|
|
|
|
index_elem: attr_name opt_type opt_class
|
|
{
|
|
$$ = makeNode(IndexElem);
|
|
$$->name = $1;
|
|
$$->args = NIL;
|
|
$$->class = $3;
|
|
$$->tname = $2;
|
|
}
|
|
;
|
|
|
|
opt_type: ':' Typename { $$ = $2;}
|
|
| /*EMPTY*/ { $$ = NULL;}
|
|
;
|
|
|
|
opt_class: class
|
|
| WITH class { $$ = $2; }
|
|
| /*EMPTY*/ { $$ = NULL; }
|
|
;
|
|
|
|
/*
|
|
* jimmy bell-style recursive queries aren't supported in the
|
|
* current system.
|
|
*
|
|
* ...however, recursive addattr and rename supported. make special
|
|
* cases for these.
|
|
*
|
|
* XXX i believe '*' should be the default behavior, but...
|
|
*/
|
|
opt_inh_star: '*' { $$ = TRUE; }
|
|
| /*EMPTY*/ { $$ = FALSE; }
|
|
;
|
|
|
|
relation_name_list: name_list ;
|
|
|
|
name_list: name
|
|
{ $$=lcons(makeString($1),NIL); }
|
|
| name_list ',' name
|
|
{ $$=lappend($1,makeString($3)); }
|
|
;
|
|
|
|
group_clause: GROUP BY groupby_list { $$ = $3; }
|
|
| /*EMPTY*/ { $$ = NIL; }
|
|
;
|
|
|
|
groupby_list: groupby { $$ = lcons($1, NIL); }
|
|
| groupby_list ',' groupby { $$ = lappend($1, $3); }
|
|
;
|
|
|
|
groupby: Id
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = 0;
|
|
$$->range = NULL;
|
|
$$->name = $1;
|
|
$$->useOp = NULL;
|
|
}
|
|
| Id '.' Id
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = 0;
|
|
$$->range = $1;
|
|
$$->name = $3;
|
|
$$->useOp = NULL;
|
|
}
|
|
| Iconst
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = $1;
|
|
$$->range = NULL;
|
|
$$->name = NULL;
|
|
$$->useOp = NULL;
|
|
}
|
|
;
|
|
|
|
having_clause: HAVING a_expr { $$ = $2; }
|
|
| /*EMPTY*/ { $$ = NULL; }
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* clauses common to all Optimizable Stmts:
|
|
* from_clause -
|
|
* where_clause -
|
|
*
|
|
*****************************************************************************/
|
|
|
|
from_clause: FROM '(' relation_expr join_clause relation_expr join_spec ')'
|
|
{
|
|
$$ = NIL;
|
|
elog(WARN,"JOIN not yet implemented",NULL);
|
|
}
|
|
| FROM from_list { $$ = $2; }
|
|
| /*EMPTY*/ { $$ = NIL; }
|
|
;
|
|
|
|
from_list: from_list ',' from_val
|
|
{ $$ = lappend($1, $3); }
|
|
| from_val CROSS JOIN from_val
|
|
{ elog(WARN,"CROSS JOIN not yet implemented",NULL); }
|
|
| from_val
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
from_val: relation_expr AS var_name
|
|
{
|
|
$$ = makeNode(RangeVar);
|
|
$$->relExpr = $1;
|
|
$$->name = $3;
|
|
}
|
|
| relation_expr var_name
|
|
{
|
|
$$ = makeNode(RangeVar);
|
|
$$->relExpr = $1;
|
|
$$->name = $2;
|
|
}
|
|
| relation_expr
|
|
{
|
|
$$ = makeNode(RangeVar);
|
|
$$->relExpr = $1;
|
|
$$->name = NULL;
|
|
}
|
|
;
|
|
|
|
join_clause: join_qual join_type JOIN
|
|
{
|
|
$$ = NULL;
|
|
}
|
|
;
|
|
|
|
join_qual: NATURAL { $$ = TRUE; }
|
|
| /*EMPTY*/ { $$ = FALSE; }
|
|
;
|
|
|
|
join_type: FULL join_outer
|
|
{ elog(WARN,"FULL OUTER JOIN not yet implemented",NULL); }
|
|
| LEFT join_outer
|
|
{ elog(WARN,"LEFT OUTER JOIN not yet implemented",NULL); }
|
|
| RIGHT join_outer
|
|
{ elog(WARN,"RIGHT OUTER JOIN not yet implemented",NULL); }
|
|
| join_outer
|
|
{ elog(WARN,"OUTER JOIN not yet implemented",NULL); }
|
|
| INNERJOIN
|
|
{ elog(WARN,"INNER JOIN not yet implemented",NULL); }
|
|
| UNION
|
|
{ elog(WARN,"UNION JOIN not yet implemented",NULL); }
|
|
| /*EMPTY*/ { $$ = NULL; /* no qualifiers */ }
|
|
;
|
|
|
|
join_outer: OUTERJOIN { $$ = NULL; }
|
|
| /*EMPTY*/ { $$ = NULL; /* no qualifiers */ }
|
|
;
|
|
|
|
join_spec: ON '(' a_expr ')' { $$ = NULL; }
|
|
| USING '(' join_list ')' { $$ = NULL; }
|
|
| /*EMPTY*/ { $$ = NULL; /* no qualifiers */ }
|
|
;
|
|
|
|
join_list: join_using { $$ = lcons($1, NIL); }
|
|
| join_list ',' join_using { $$ = lappend($1, $3); }
|
|
;
|
|
|
|
join_using: Id
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = 0;
|
|
$$->range = NULL;
|
|
$$->name = $1;
|
|
$$->useOp = NULL;
|
|
}
|
|
| Id '.' Id
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = 0;
|
|
$$->range = $1;
|
|
$$->name = $3;
|
|
$$->useOp = NULL;
|
|
}
|
|
| Iconst
|
|
{
|
|
$$ = makeNode(SortGroupBy);
|
|
$$->resno = $1;
|
|
$$->range = NULL;
|
|
$$->name = NULL;
|
|
$$->useOp = NULL;
|
|
}
|
|
;
|
|
|
|
where_clause: WHERE a_expr { $$ = $2; }
|
|
| /*EMPTY*/ { $$ = NULL; /* no qualifiers */ }
|
|
;
|
|
|
|
relation_expr: relation_name
|
|
{
|
|
/* normal relations */
|
|
$$ = makeNode(RelExpr);
|
|
$$->relname = $1;
|
|
$$->inh = FALSE;
|
|
$$->timeRange = NULL;
|
|
}
|
|
| relation_name '*' %prec '='
|
|
{
|
|
/* inheiritance query */
|
|
$$ = makeNode(RelExpr);
|
|
$$->relname = $1;
|
|
$$->inh = TRUE;
|
|
$$->timeRange = NULL;
|
|
}
|
|
| relation_name time_range
|
|
{
|
|
/* time-qualified query */
|
|
$$ = makeNode(RelExpr);
|
|
$$->relname = $1;
|
|
$$->inh = FALSE;
|
|
$$->timeRange = $2;
|
|
}
|
|
;
|
|
|
|
|
|
time_range: '[' opt_range_start ',' opt_range_end ']'
|
|
{
|
|
$$ = makeNode(TimeRange);
|
|
$$->startDate = $2;
|
|
$$->endDate = $4;
|
|
}
|
|
| '[' date ']'
|
|
{
|
|
$$ = makeNode(TimeRange);
|
|
$$->startDate = $2;
|
|
$$->endDate = NULL;
|
|
}
|
|
;
|
|
|
|
opt_range_start: date
|
|
| /*EMPTY*/ { $$ = "epoch"; }
|
|
;
|
|
|
|
opt_range_end: date
|
|
| /*EMPTY*/ { $$ = "now"; }
|
|
;
|
|
|
|
opt_array_bounds: '[' ']' nest_array_bounds
|
|
{ $$ = lcons(makeInteger(-1), $3); }
|
|
| '[' Iconst ']' nest_array_bounds
|
|
{ $$ = lcons(makeInteger($2), $4); }
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
nest_array_bounds: '[' ']' nest_array_bounds
|
|
{ $$ = lcons(makeInteger(-1), $3); }
|
|
| '[' Iconst ']' nest_array_bounds
|
|
{ $$ = lcons(makeInteger($2), $4); }
|
|
| /*EMPTY*/
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
typname: txname
|
|
{
|
|
char *tname = xlateSqlType($1);
|
|
$$ = makeNode(TypeName);
|
|
$$->name = tname;
|
|
|
|
/* Is this the name of a complex type? If so, implement
|
|
* it as a set.
|
|
*/
|
|
if (!strcmp(saved_relname, tname)) {
|
|
/* This attr is the same type as the relation
|
|
* being defined. The classic example: create
|
|
* emp(name=text,mgr=emp)
|
|
*/
|
|
$$->setof = TRUE;
|
|
}else if (get_typrelid((Type)type(tname))
|
|
!= InvalidOid) {
|
|
/* (Eventually add in here that the set can only
|
|
* contain one element.)
|
|
*/
|
|
$$->setof = TRUE;
|
|
} else {
|
|
$$->setof = FALSE;
|
|
}
|
|
}
|
|
| SETOF txname
|
|
{
|
|
char *tname = xlateSqlType($2);
|
|
$$ = makeNode(TypeName);
|
|
$$->name = tname;
|
|
$$->setof = TRUE;
|
|
}
|
|
;
|
|
|
|
txname: Id { $$ = $1; }
|
|
| TIME { $$ = "time"; }
|
|
| INTERVAL interval_opts { $$ = "interval"; }
|
|
;
|
|
|
|
interval_opts: YEARINTERVAL { $$ = lcons("year", NIL); }
|
|
| MONTHINTERVAL { $$ = NIL; }
|
|
| DAYINTERVAL { $$ = NIL; }
|
|
| HOURINTERVAL { $$ = NIL; }
|
|
| MINUTEINTERVAL { $$ = NIL; }
|
|
| SECONDINTERVAL { $$ = NIL; }
|
|
| YEARINTERVAL TO MONTHINTERVAL { $$ = NIL; }
|
|
| DAYINTERVAL TO HOURINTERVAL { $$ = NIL; }
|
|
| DAYINTERVAL TO MINUTEINTERVAL { $$ = NIL; }
|
|
| DAYINTERVAL TO SECONDINTERVAL { $$ = NIL; }
|
|
| HOURINTERVAL TO MINUTEINTERVAL { $$ = NIL; }
|
|
| HOURINTERVAL TO SECONDINTERVAL { $$ = NIL; }
|
|
| /* EMPTY */ { $$ = NIL; }
|
|
;
|
|
|
|
Typename: typname opt_array_bounds
|
|
{
|
|
$$ = $1;
|
|
$$->arrayBounds = $2;
|
|
}
|
|
| txname '(' Iconst ')'
|
|
{
|
|
/*
|
|
* This block gets hit when the parser is passed a query
|
|
* which contains only spaces (e.g. from psql type " \g").
|
|
* Let's check explicitly for a zero-length argument
|
|
* here, and do nothing if so. This seems to fix the problem.
|
|
* - thomas 1997-07-13
|
|
*/
|
|
if (strlen($1) > 0) {
|
|
|
|
/*
|
|
* The following implements char() and varchar().
|
|
* We do it here instead of the 'typname:' production
|
|
* because we don't want to allow arrays of varchar().
|
|
* I haven't thought about whether that will work or not.
|
|
* - ay 6/95
|
|
*/
|
|
$$ = makeNode(TypeName);
|
|
if (!strcasecmp($1, "char")) {
|
|
$$->name = "bpchar"; /* strdup("bpchar"); */
|
|
} else if (!strcasecmp($1, "varchar")) {
|
|
$$->name = "varchar"; /* strdup("varchar"); */
|
|
} else {
|
|
yyerror("parse error");
|
|
}
|
|
if ($3 < 1) {
|
|
elog(WARN, "length for '%s' type must be at least 1",
|
|
$1);
|
|
} else if ($3 > 4096) {
|
|
/* we can store a char() of length up to the size
|
|
* of a page (8KB) - page headers and friends but
|
|
* just to be safe here... - ay 6/95
|
|
* XXX note this hardcoded limit - thomas 1997-07-13
|
|
*/
|
|
elog(WARN, "length for '%s' type cannot exceed 4096",
|
|
$1);
|
|
}
|
|
/* we actually implement this sort of like a varlen, so
|
|
* the first 4 bytes is the length. (the difference
|
|
* between this and "text" is that we blank-pad and
|
|
* truncate where necessary
|
|
*/
|
|
$$->typlen = 4 + $3;
|
|
|
|
}
|
|
}
|
|
;
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* expression grammar, still needs some cleanup
|
|
*
|
|
*****************************************************************************/
|
|
|
|
a_expr_or_null: a_expr
|
|
{ $$ = $1;}
|
|
| Pnull
|
|
{
|
|
A_Const *n = makeNode(A_Const);
|
|
n->val.type = T_Null;
|
|
$$ = (Node *)n;
|
|
}
|
|
|
|
a_expr: attr opt_indirection
|
|
{
|
|
$1->indirection = $2;
|
|
$$ = (Node *)$1;
|
|
}
|
|
| AexprConst
|
|
{ $$ = $1; }
|
|
| '-' a_expr %prec UMINUS
|
|
{ $$ = makeA_Expr(OP, "-", NULL, $2); }
|
|
| a_expr '+' a_expr
|
|
{ $$ = makeA_Expr(OP, "+", $1, $3); }
|
|
| a_expr '-' a_expr
|
|
{ $$ = makeA_Expr(OP, "-", $1, $3); }
|
|
| a_expr '/' a_expr
|
|
{ $$ = makeA_Expr(OP, "/", $1, $3); }
|
|
| a_expr '*' a_expr
|
|
{ $$ = makeA_Expr(OP, "*", $1, $3); }
|
|
| a_expr '<' a_expr
|
|
{ $$ = makeA_Expr(OP, "<", $1, $3); }
|
|
| a_expr '>' a_expr
|
|
{ $$ = makeA_Expr(OP, ">", $1, $3); }
|
|
| a_expr '=' a_expr
|
|
{ $$ = makeA_Expr(OP, "=", $1, $3); }
|
|
| ':' a_expr
|
|
{ $$ = makeA_Expr(OP, ":", NULL, $2); }
|
|
| ';' a_expr
|
|
{ $$ = makeA_Expr(OP, ";", NULL, $2); }
|
|
| '|' a_expr
|
|
{ $$ = makeA_Expr(OP, "|", NULL, $2); }
|
|
| AexprConst TYPECAST Typename
|
|
{
|
|
/* AexprConst can be either A_Const or ParamNo */
|
|
if (nodeTag($1) == T_A_Const) {
|
|
((A_Const *)$1)->typename = $3;
|
|
}else {
|
|
((ParamNo *)$1)->typename = $3;
|
|
}
|
|
$$ = (Node *)$1;
|
|
}
|
|
| CAST AexprConst AS Typename
|
|
{
|
|
/* AexprConst can be either A_Const or ParamNo */
|
|
if (nodeTag($2) == T_A_Const) {
|
|
((A_Const *)$2)->typename = $4;
|
|
}else {
|
|
((ParamNo *)$2)->typename = $4;
|
|
}
|
|
$$ = (Node *)$2;
|
|
}
|
|
| '(' a_expr_or_null ')'
|
|
{ $$ = $2; }
|
|
| a_expr Op a_expr
|
|
{ $$ = makeA_Expr(OP, $2, $1, $3); }
|
|
| a_expr LIKE a_expr
|
|
{ $$ = makeA_Expr(OP, "~~", $1, $3); }
|
|
| a_expr NOT LIKE a_expr
|
|
{ $$ = makeA_Expr(OP, "!~~", $1, $4); }
|
|
| Op a_expr
|
|
{ $$ = makeA_Expr(OP, $1, NULL, $2); }
|
|
| a_expr Op
|
|
{ $$ = makeA_Expr(OP, $2, $1, NULL); }
|
|
| Id
|
|
{ /* could be a column name or a relation_name */
|
|
Ident *n = makeNode(Ident);
|
|
n->name = $1;
|
|
n->indirection = NULL;
|
|
$$ = (Node *)n;
|
|
}
|
|
| name '(' '*' ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
Ident *star = makeNode(Ident);
|
|
|
|
/* cheap hack for aggregate (eg. count) */
|
|
star->name = "oid";
|
|
n->funcname = $1;
|
|
n->args = lcons(star, NIL);
|
|
$$ = (Node *)n;
|
|
}
|
|
| name '(' ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = $1;
|
|
n->args = NIL;
|
|
$$ = (Node *)n;
|
|
}
|
|
/* We probably need to define an "exists" node,
|
|
* since the optimizer could choose to find only one match.
|
|
* Perhaps the first implementation could just check for
|
|
* count(*) > 0? - thomas 1997-07-19
|
|
*/
|
|
| EXISTS '(' SubSelect ')'
|
|
{
|
|
elog(WARN,"EXISTS not yet supported",NULL);
|
|
$$ = $3;
|
|
}
|
|
| EXTRACT '(' extract_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = "date_part";
|
|
n->args = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
| POSITION '(' position_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = "strpos";
|
|
n->args = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
| SUBSTRING '(' substr_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = "substr";
|
|
n->args = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
/* various trim expressions are defined in SQL92 - thomas 1997-07-19 */
|
|
| TRIM '(' BOTH trim_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = "btrim";
|
|
n->args = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
| TRIM '(' LEADING trim_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = "ltrim";
|
|
n->args = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
| TRIM '(' TRAILING trim_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = "rtrim";
|
|
n->args = $4;
|
|
$$ = (Node *)n;
|
|
}
|
|
| TRIM '(' trim_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = "btrim";
|
|
n->args = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
| name '(' expr_list ')'
|
|
{
|
|
FuncCall *n = makeNode(FuncCall);
|
|
n->funcname = $1;
|
|
n->args = $3;
|
|
$$ = (Node *)n;
|
|
}
|
|
| a_expr ISNULL
|
|
{ $$ = makeA_Expr(ISNULL, NULL, $1, NULL); }
|
|
| a_expr IS PNULL
|
|
{ $$ = makeA_Expr(ISNULL, NULL, $1, NULL); }
|
|
| a_expr NOTNULL
|
|
{ $$ = makeA_Expr(NOTNULL, NULL, $1, NULL); }
|
|
| a_expr IS NOT PNULL
|
|
{ $$ = makeA_Expr(NOTNULL, NULL, $1, NULL); }
|
|
| a_expr BETWEEN AexprConst AND AexprConst
|
|
{ $$ = makeA_Expr(AND, NULL,
|
|
makeA_Expr(OP, ">=", $1, $3),
|
|
makeA_Expr(OP, "<=", $1, $5));
|
|
}
|
|
| a_expr NOT BETWEEN AexprConst AND AexprConst
|
|
{ $$ = makeA_Expr(OR, NULL,
|
|
makeA_Expr(OP, "<", $1, $4),
|
|
makeA_Expr(OP, ">", $1, $6));
|
|
}
|
|
| a_expr IN { saved_In_Expr = $1; } '(' in_expr_nodes ')'
|
|
{ $$ = $5; }
|
|
| a_expr NOT IN { saved_In_Expr = $1; } '(' not_in_expr_nodes ')'
|
|
{ $$ = $6; }
|
|
| a_expr AND a_expr
|
|
{ $$ = makeA_Expr(AND, NULL, $1, $3); }
|
|
| a_expr OR a_expr
|
|
{ $$ = makeA_Expr(OR, NULL, $1, $3); }
|
|
| NOT a_expr
|
|
{ $$ = makeA_Expr(NOT, NULL, NULL, $2); }
|
|
;
|
|
|
|
opt_indirection: '[' a_expr ']' opt_indirection
|
|
{
|
|
A_Indices *ai = makeNode(A_Indices);
|
|
ai->lidx = NULL;
|
|
ai->uidx = $2;
|
|
$$ = lcons(ai, $4);
|
|
}
|
|
| '[' a_expr ':' a_expr ']' opt_indirection
|
|
{
|
|
A_Indices *ai = makeNode(A_Indices);
|
|
ai->lidx = $2;
|
|
ai->uidx = $4;
|
|
$$ = lcons(ai, $6);
|
|
}
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
expr_list: a_expr_or_null
|
|
{ $$ = lcons($1, NIL); }
|
|
| expr_list ',' a_expr_or_null
|
|
{ $$ = lappend($1, $3); }
|
|
| expr_list USING a_expr
|
|
{ $$ = lappend($1, $3); }
|
|
;
|
|
|
|
extract_list: datetime FROM a_expr
|
|
{
|
|
A_Const *n = makeNode(A_Const);
|
|
n->val.type = T_String;
|
|
n->val.val.str = $1;
|
|
printf( "string is %s\n", $1);
|
|
$$ = lappend(lcons((Node *)n,NIL), $3);
|
|
}
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
position_list: a_expr IN expr_list
|
|
{
|
|
$$ = lappend($3, $1);
|
|
}
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
substr_list: expr_list substr_from substr_for
|
|
{
|
|
$$ = $1;
|
|
if ($2 != NULL) $$ = lappend($$, $2);
|
|
if ($3 != NULL) $$ = lappend($$, $3);
|
|
}
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
substr_from: FROM expr_list
|
|
{ $$ = $2; }
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
substr_for: FOR expr_list
|
|
{ $$ = $2; }
|
|
| /* EMPTY */
|
|
{ $$ = NIL; }
|
|
;
|
|
|
|
trim_list: a_expr FROM expr_list
|
|
{ $$ = lappend($3, $1); }
|
|
| FROM expr_list
|
|
{ $$ = $2; }
|
|
| expr_list
|
|
{ $$ = $1; }
|
|
;
|
|
|
|
in_expr_nodes: AexprConst
|
|
{ $$ = makeA_Expr(OP, "=", saved_In_Expr, $1); }
|
|
| in_expr_nodes ',' AexprConst
|
|
{ $$ = makeA_Expr(OR, NULL, $1,
|
|
makeA_Expr(OP, "=", saved_In_Expr, $3));
|
|
}
|
|
;
|
|
|
|
not_in_expr_nodes: AexprConst
|
|
{ $$ = makeA_Expr(OP, "<>", saved_In_Expr, $1); }
|
|
| not_in_expr_nodes ',' AexprConst
|
|
{ $$ = makeA_Expr(AND, NULL, $1,
|
|
makeA_Expr(OP, "<>", saved_In_Expr, $3));
|
|
}
|
|
;
|
|
|
|
attr: relation_name '.' attrs
|
|
{
|
|
$$ = makeNode(Attr);
|
|
$$->relname = $1;
|
|
$$->paramNo = NULL;
|
|
$$->attrs = $3;
|
|
$$->indirection = NULL;
|
|
}
|
|
| ParamNo '.' attrs
|
|
{
|
|
$$ = makeNode(Attr);
|
|
$$->relname = NULL;
|
|
$$->paramNo = $1;
|
|
$$->attrs = $3;
|
|
$$->indirection = NULL;
|
|
}
|
|
;
|
|
|
|
attrs: attr_name
|
|
{ $$ = lcons(makeString($1), NIL); }
|
|
| attrs '.' attr_name
|
|
{ $$ = lappend($1, makeString($3)); }
|
|
| attrs '.' '*'
|
|
{ $$ = lappend($1, makeString("*")); }
|
|
;
|
|
|
|
datetime: YEARINTERVAL { $$ = "year"; }
|
|
| MONTHINTERVAL { $$ = "month"; }
|
|
| DAYINTERVAL { $$ = "day"; }
|
|
| HOURINTERVAL { $$ = "hour"; }
|
|
| MINUTEINTERVAL { $$ = "minute"; }
|
|
| SECONDINTERVAL { $$ = "second"; }
|
|
;
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* target lists
|
|
*
|
|
*****************************************************************************/
|
|
|
|
res_target_list: res_target_list ',' res_target_el
|
|
{ $$ = lappend($1,$3); }
|
|
| res_target_el
|
|
{ $$ = lcons($1, NIL); }
|
|
| '*'
|
|
{
|
|
ResTarget *rt = makeNode(ResTarget);
|
|
Attr *att = makeNode(Attr);
|
|
att->relname = "*";
|
|
att->paramNo = NULL;
|
|
att->attrs = NULL;
|
|
att->indirection = NIL;
|
|
rt->name = NULL;
|
|
rt->indirection = NULL;
|
|
rt->val = (Node *)att;
|
|
$$ = lcons(rt, NIL);
|
|
}
|
|
;
|
|
|
|
res_target_el: Id opt_indirection '=' a_expr_or_null
|
|
{
|
|
$$ = makeNode(ResTarget);
|
|
$$->name = $1;
|
|
$$->indirection = $2;
|
|
$$->val = (Node *)$4;
|
|
}
|
|
| attr opt_indirection
|
|
{
|
|
$$ = makeNode(ResTarget);
|
|
$$->name = NULL;
|
|
$$->indirection = $2;
|
|
$$->val = (Node *)$1;
|
|
}
|
|
| relation_name '.' '*'
|
|
{
|
|
Attr *att = makeNode(Attr);
|
|
att->relname = $1;
|
|
att->paramNo = NULL;
|
|
att->attrs = lcons(makeString("*"), NIL);
|
|
att->indirection = NIL;
|
|
$$ = makeNode(ResTarget);
|
|
$$->name = NULL;
|
|
$$->indirection = NULL;
|
|
$$->val = (Node *)att;
|
|
}
|
|
;
|
|
|
|
/*
|
|
** target list for select.
|
|
** should get rid of the other but is still needed by the defunct retrieve into
|
|
** and update (uses a subset)
|
|
*/
|
|
res_target_list2: res_target_list2 ',' res_target_el2
|
|
{ $$ = lappend($1, $3); }
|
|
| res_target_el2
|
|
{ $$ = lcons($1, NIL); }
|
|
;
|
|
|
|
/* AS is not optional because shift/red conflict with unary ops */
|
|
res_target_el2: a_expr AS ColId
|
|
{
|
|
$$ = makeNode(ResTarget);
|
|
$$->name = $3;
|
|
$$->indirection = NULL;
|
|
$$->val = (Node *)$1;
|
|
}
|
|
| a_expr_or_null
|
|
{
|
|
$$ = makeNode(ResTarget);
|
|
$$->name = NULL;
|
|
$$->indirection = NULL;
|
|
$$->val = (Node *)$1;
|
|
}
|
|
| relation_name '.' '*'
|
|
{
|
|
Attr *att = makeNode(Attr);
|
|
att->relname = $1;
|
|
att->paramNo = NULL;
|
|
att->attrs = lcons(makeString("*"), NIL);
|
|
att->indirection = NIL;
|
|
$$ = makeNode(ResTarget);
|
|
$$->name = NULL;
|
|
$$->indirection = NULL;
|
|
$$->val = (Node *)att;
|
|
}
|
|
| '*'
|
|
{
|
|
Attr *att = makeNode(Attr);
|
|
att->relname = "*";
|
|
att->paramNo = NULL;
|
|
att->attrs = NULL;
|
|
att->indirection = NIL;
|
|
$$ = makeNode(ResTarget);
|
|
$$->name = NULL;
|
|
$$->indirection = NULL;
|
|
$$->val = (Node *)att;
|
|
}
|
|
;
|
|
|
|
opt_id: Id { $$ = $1; }
|
|
| /* EMPTY */ { $$ = NULL; }
|
|
;
|
|
|
|
relation_name: SpecialRuleRelation
|
|
{
|
|
$$ = $1;
|
|
strNcpy(saved_relname, $1, NAMEDATALEN-1);
|
|
}
|
|
| ColId
|
|
{
|
|
/* disallow refs to magic system tables */
|
|
if (strcmp(LogRelationName, $1) == 0
|
|
|| strcmp(VariableRelationName, $1) == 0
|
|
|| strcmp(TimeRelationName, $1) == 0
|
|
|| strcmp(MagicRelationName, $1) == 0) {
|
|
elog(WARN, "%s cannot be accessed by users", $1);
|
|
} else {
|
|
$$ = $1;
|
|
}
|
|
strNcpy(saved_relname, $1, NAMEDATALEN-1);
|
|
}
|
|
;
|
|
|
|
database_name: Id { $$ = $1; };
|
|
access_method: Id { $$ = $1; };
|
|
attr_name: ColId { $$ = $1; };
|
|
class: Id { $$ = $1; };
|
|
index_name: Id { $$ = $1; };
|
|
var_name: Id { $$ = $1; };
|
|
name: Id { $$ = $1; };
|
|
|
|
date: Sconst { $$ = $1; };
|
|
file_name: Sconst { $$ = $1; };
|
|
recipe_name: Id { $$ = $1; };
|
|
|
|
AexprConst: Iconst
|
|
{
|
|
A_Const *n = makeNode(A_Const);
|
|
n->val.type = T_Integer;
|
|
n->val.val.ival = $1;
|
|
$$ = (Node *)n;
|
|
}
|
|
| FCONST
|
|
{
|
|
A_Const *n = makeNode(A_Const);
|
|
n->val.type = T_Float;
|
|
n->val.val.dval = $1;
|
|
$$ = (Node *)n;
|
|
}
|
|
| Sconst
|
|
{
|
|
A_Const *n = makeNode(A_Const);
|
|
n->val.type = T_String;
|
|
n->val.val.str = $1;
|
|
$$ = (Node *)n;
|
|
}
|
|
| ParamNo
|
|
{ $$ = (Node *)$1; }
|
|
;
|
|
|
|
ParamNo: PARAM
|
|
{
|
|
$$ = makeNode(ParamNo);
|
|
$$->number = $1;
|
|
}
|
|
;
|
|
|
|
NumConst: Iconst { $$ = makeInteger($1); }
|
|
| FCONST { $$ = makeFloat($1); }
|
|
;
|
|
|
|
Iconst: ICONST { $$ = $1; };
|
|
Sconst: SCONST { $$ = $1; };
|
|
|
|
Id: IDENT { $$ = $1; };
|
|
|
|
ColId: Id { $$ = $1; }
|
|
| datetime { $$ = $1; }
|
|
;
|
|
|
|
SpecialRuleRelation: CURRENT
|
|
{
|
|
if (QueryIsRule)
|
|
$$ = "*CURRENT*";
|
|
else
|
|
elog(WARN,"CURRENT used in non-rule query");
|
|
}
|
|
| NEW
|
|
{
|
|
if (QueryIsRule)
|
|
$$ = "*NEW*";
|
|
else
|
|
elog(WARN,"NEW used in non-rule query");
|
|
}
|
|
;
|
|
|
|
Type: P_TYPE;
|
|
Pnull: PNULL;
|
|
|
|
|
|
%%
|
|
|
|
static Node *makeA_Expr(int oper, char *opname, Node *lexpr, Node *rexpr)
|
|
{
|
|
A_Expr *a = makeNode(A_Expr);
|
|
a->oper = oper;
|
|
a->opname = opname;
|
|
a->lexpr = lexpr;
|
|
a->rexpr = rexpr;
|
|
return (Node *)a;
|
|
}
|
|
|
|
static char *
|
|
xlateSqlType(char *name)
|
|
{
|
|
if (!strcasecmp(name,"int") ||
|
|
!strcasecmp(name,"integer"))
|
|
return "int4"; /* strdup("int4") -- strdup leaks memory here */
|
|
else if (!strcasecmp(name, "smallint"))
|
|
return "int2";
|
|
else if (!strcasecmp(name, "float") ||
|
|
!strcasecmp(name, "real"))
|
|
return "float8";
|
|
else if (!strcasecmp(name, "interval"))
|
|
return "timespan";
|
|
else
|
|
return name;
|
|
}
|
|
|
|
void parser_init(Oid *typev, int nargs)
|
|
{
|
|
QueryIsRule = false;
|
|
saved_relname[0]= '\0';
|
|
saved_In_Expr = NULL;
|
|
|
|
param_type_init(typev, nargs);
|
|
}
|
|
|