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-rw-r--r--src/backend/parser/gram.y103
-rw-r--r--src/backend/parser/keywords.c12
-rw-r--r--src/backend/parser/parse.h413
3 files changed, 308 insertions, 220 deletions
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 33bbcbb8d41..26f73a122e9 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.29 1998/09/02 15:47:30 thomas Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.30 1998/09/13 04:19:29 thomas Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -185,6 +185,7 @@ Oid param_type(int t); /* used in parse_expr.c */
%type <boolean> opt_inh_star, opt_binary, opt_instead, opt_with_copy,
index_opt_unique, opt_verbose, opt_analyze
+%type <boolean> cursor_clause, opt_cursor, opt_readonly, opt_of
%type <ival> copy_dirn, def_type, opt_direction, remove_type,
opt_column, event
@@ -256,7 +257,7 @@ Oid param_type(int t); /* used in parse_expr.c */
*/
/* Keywords (in SQL92 reserved words) */
-%token ACTION, ADD, ALL, ALTER, AND, ANY AS, ASC,
+%token ABSOLUTE, ACTION, ADD, ALL, ALTER, AND, ANY AS, ASC,
BEGIN_TRANS, BETWEEN, BOTH, BY,
CASCADE, CAST, CHAR, CHARACTER, CHECK, CLOSE, COLLATE, COLUMN, COMMIT,
CONSTRAINT, CREATE, CROSS, CURRENT, CURRENT_DATE, CURRENT_TIME,
@@ -265,14 +266,14 @@ Oid param_type(int t); /* used in parse_expr.c */
END_TRANS, EXECUTE, EXISTS, EXTRACT,
FETCH, FLOAT, FOR, FOREIGN, FROM, FULL,
GRANT, GROUP, HAVING, HOUR_P,
- IN, INNER_P, INSERT, INTERVAL, INTO, IS,
+ IN, INNER_P, INSENSITIVE, INSERT, INTERVAL, INTO, IS,
JOIN, KEY, LANGUAGE, LEADING, LEFT, LIKE, LOCAL,
MATCH, MINUTE_P, MONTH_P, NAMES,
- NATIONAL, NATURAL, NCHAR, NO, NOT, NOTIFY, NULL_P, NUMERIC,
- ON, OPTION, OR, ORDER, OUTER_P,
- PARTIAL, POSITION, PRECISION, PRIMARY, PRIVILEGES, PROCEDURE, PUBLIC,
- REFERENCES, REVOKE, RIGHT, ROLLBACK,
- SECOND_P, SELECT, SET, SUBSTRING,
+ NATIONAL, NATURAL, NCHAR, NEXT, NO, NOT, NOTIFY, NULL_P, NUMERIC,
+ OF, ON, ONLY, OPTION, OR, ORDER, OUTER_P,
+ PARTIAL, POSITION, PRECISION, PRIMARY, PRIOR, PRIVILEGES, PROCEDURE, PUBLIC,
+ READ, REFERENCES, RELATIVE, REVOKE, RIGHT, ROLLBACK,
+ SCROLL, SECOND_P, SELECT, SET, SUBSTRING,
TABLE, TIME, TIMESTAMP, TIMEZONE_HOUR, TIMEZONE_MINUTE,
TO, TRAILING, TRANSACTION, TRIM,
UNION, UNIQUE, UPDATE, USER, USING,
@@ -796,6 +797,16 @@ ColConstraint:
{ $$ = $1; }
;
+/* The column constraint WITH NULL gives a shift/reduce error
+ * because it requires yacc to look more than one token ahead to
+ * resolve WITH TIME ZONE and WITH NULL.
+ * So, leave it out of the syntax for now.
+ | WITH NULL_P
+ {
+ $$ = NULL;
+ }
+ * - thomas 1998-09-12
+ */
ColConstraintElem: CHECK '(' constraint_expr ')'
{
Constraint *n = makeNode(Constraint);
@@ -1512,13 +1523,26 @@ DestroyStmt: DROP TABLE relation_name_list
/*****************************************************************************
*
* QUERY:
- * fetch/move [forward | backward] [number | all ] [ in <portalname> ]
+ * fetch/move [forward | backward] [ # | all ] [ in <portalname> ]
+ * fetch [ forward | backward | absolute | relative ]
+ * [ # | all | next | prior ] [ [ in | from ] <portalname> ]
*
*****************************************************************************/
FetchStmt: FETCH opt_direction fetch_how_many opt_portal_name
{
FetchStmt *n = makeNode(FetchStmt);
+ if ($2 == RELATIVE)
+ {
+ if ($3 == 0)
+ elog(ERROR,"FETCH/RELATIVE at current position is not supported");
+ $2 = FORWARD;
+ }
+ if ($3 < 0)
+ {
+ $3 = -$3;
+ $2 = (($2 == FORWARD)? BACKWARD: FORWARD);
+ }
n->direction = $2;
n->howMany = $3;
n->portalname = $4;
@@ -1528,6 +1552,11 @@ FetchStmt: FETCH opt_direction fetch_how_many opt_portal_name
| MOVE opt_direction fetch_how_many opt_portal_name
{
FetchStmt *n = makeNode(FetchStmt);
+ if ($3 < 0)
+ {
+ $3 = -$3;
+ $2 = (($2 == FORWARD)? BACKWARD: FORWARD);
+ }
n->direction = $2;
n->howMany = $3;
n->portalname = $4;
@@ -1536,19 +1565,27 @@ FetchStmt: FETCH opt_direction fetch_how_many opt_portal_name
}
;
-opt_direction: FORWARD { $$ = FORWARD; }
- | BACKWARD { $$ = BACKWARD; }
- | /*EMPTY*/ { $$ = FORWARD; /* default */ }
+opt_direction: FORWARD { $$ = FORWARD; }
+ | BACKWARD { $$ = BACKWARD; }
+ | RELATIVE { $$ = RELATIVE; }
+ | ABSOLUTE
+ {
+ elog(NOTICE,"FETCH/ABSOLUTE not supported, using RELATIVE");
+ $$ = RELATIVE;
+ }
+ | /*EMPTY*/ { $$ = FORWARD; /* default */ }
;
-fetch_how_many: Iconst
- { $$ = $1;
- if ($1 <= 0) elog(ERROR,"Please specify nonnegative count for fetch"); }
+fetch_how_many: Iconst { $$ = $1; }
+ | '-' Iconst { $$ = - $2; }
| ALL { $$ = 0; /* 0 means fetch all tuples*/ }
+ | NEXT { $$ = 1; }
+ | PRIOR { $$ = -1; }
| /*EMPTY*/ { $$ = 1; /*default*/ }
;
opt_portal_name: IN name { $$ = $2; }
+ | FROM name { $$ = $2; }
| /*EMPTY*/ { $$ = NULL; }
;
@@ -2460,11 +2497,12 @@ UpdateStmt: UPDATE relation_name
* CURSOR STATEMENTS
*
*****************************************************************************/
-CursorStmt: DECLARE name opt_binary CURSOR FOR
+CursorStmt: DECLARE name opt_cursor CURSOR FOR
SELECT opt_unique res_target_list2
from_clause where_clause
group_clause having_clause
union_clause sort_clause
+ cursor_clause
{
SelectStmt *n = makeNode(SelectStmt);
@@ -2493,6 +2531,30 @@ CursorStmt: DECLARE name opt_binary CURSOR FOR
}
;
+opt_cursor: BINARY { $$ = TRUE; }
+ | INSENSITIVE { $$ = FALSE; }
+ | SCROLL { $$ = FALSE; }
+ | INSENSITIVE SCROLL { $$ = FALSE; }
+ | /*EMPTY*/ { $$ = FALSE; }
+ ;
+
+cursor_clause: FOR opt_readonly { $$ = $2; }
+ | /*EMPTY*/ { $$ = FALSE; }
+ ;
+
+opt_readonly: READ ONLY { $$ = TRUE; }
+ | UPDATE opt_of
+ {
+ elog(ERROR,"DECLARE/UPDATE not supported;"
+ " Cursors must be READ ONLY.");
+ $$ = FALSE;
+ }
+ ;
+
+opt_of: OF columnList
+ {
+ $$ = FALSE;
+ }
/*****************************************************************************
*
@@ -4551,6 +4613,7 @@ TypeId: ColId
*/
ColId: IDENT { $$ = $1; }
| datetime { $$ = $1; }
+ | ABSOLUTE { $$ = "absolute"; }
| ACTION { $$ = "action"; }
| CACHE { $$ = "cache"; }
| CYCLE { $$ = "cycle"; }
@@ -4562,18 +4625,26 @@ ColId: IDENT { $$ = $1; }
| FUNCTION { $$ = "function"; }
| INCREMENT { $$ = "increment"; }
| INDEX { $$ = "index"; }
+ | INSENSITIVE { $$ = "insensitive"; }
| KEY { $$ = "key"; }
| LANGUAGE { $$ = "language"; }
| LOCATION { $$ = "location"; }
| MATCH { $$ = "match"; }
| MAXVALUE { $$ = "maxvalue"; }
| MINVALUE { $$ = "minvalue"; }
+ | NEXT { $$ = "next"; }
+ | OF { $$ = "of"; }
+ | ONLY { $$ = "only"; }
| OPERATOR { $$ = "operator"; }
| OPTION { $$ = "option"; }
| PASSWORD { $$ = "password"; }
+ | PRIOR { $$ = "prior"; }
| PRIVILEGES { $$ = "privileges"; }
+ | READ { $$ = "read"; }
| RECIPE { $$ = "recipe"; }
+ | RELATIVE { $$ = "relative"; }
| ROW { $$ = "row"; }
+ | SCROLL { $$ = "scroll"; }
| SERIAL { $$ = "serial"; }
| START { $$ = "start"; }
| STATEMENT { $$ = "statement"; }
diff --git a/src/backend/parser/keywords.c b/src/backend/parser/keywords.c
index 97e97d8c8b8..f7927a707d5 100644
--- a/src/backend/parser/keywords.c
+++ b/src/backend/parser/keywords.c
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.44 1998/09/01 04:30:23 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.45 1998/09/13 04:19:31 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@@ -28,8 +28,9 @@
* search is used to locate entries.
*/
static ScanKeyword ScanKeywords[] = {
- /* name value */
+ /* name, value */
{"abort", ABORT_TRANS},
+ {"absolute", ABSOLUTE},
{"action", ACTION},
{"add", ADD},
{"after", AFTER},
@@ -143,6 +144,7 @@ static ScanKeyword ScanKeywords[] = {
{"natural", NATURAL},
{"nchar", NCHAR},
{"new", NEW},
+ {"next", NEXT},
{"no", NO},
{"nocreatedb", NOCREATEDB},
{"nocreateuser", NOCREATEUSER},
@@ -153,9 +155,11 @@ static ScanKeyword ScanKeywords[] = {
{"notnull", NOTNULL},
{"null", NULL_P},
{"numeric", NUMERIC},
+ {"of", OF},
{"oids", OIDS},
{"old", CURRENT},
{"on", ON},
+ {"only", ONLY},
{"operator", OPERATOR},
{"option", OPTION},
{"or", OR},
@@ -166,12 +170,15 @@ static ScanKeyword ScanKeywords[] = {
{"position", POSITION},
{"precision", PRECISION},
{"primary", PRIMARY},
+ {"prior", PRIOR},
{"privileges", PRIVILEGES},
{"procedural", PROCEDURAL},
{"procedure", PROCEDURE},
{"public", PUBLIC},
+ {"read", READ},
{"recipe", RECIPE},
{"references", REFERENCES},
+ {"relative", RELATIVE},
{"rename", RENAME},
{"reset", RESET},
{"returns", RETURNS},
@@ -180,6 +187,7 @@ static ScanKeyword ScanKeywords[] = {
{"rollback", ROLLBACK},
{"row", ROW},
{"rule", RULE},
+ {"scroll", SCROLL},
{"second", SECOND_P},
{"select", SELECT},
{"sequence", SEQUENCE},
diff --git a/src/backend/parser/parse.h b/src/backend/parser/parse.h
index eb68436d4a0..efdbb5ae4de 100644
--- a/src/backend/parser/parse.h
+++ b/src/backend/parser/parse.h
@@ -29,208 +29,217 @@ typedef union
RuleStmt *rstmt;
InsertStmt *astmt;
} YYSTYPE;
-#define ACTION 258
-#define ADD 259
-#define ALL 260
-#define ALTER 261
-#define AND 262
-#define ANY 263
-#define AS 264
-#define ASC 265
-#define BEGIN_TRANS 266
-#define BETWEEN 267
-#define BOTH 268
-#define BY 269
-#define CASCADE 270
-#define CAST 271
-#define CHAR 272
-#define CHARACTER 273
-#define CHECK 274
-#define CLOSE 275
-#define COLLATE 276
-#define COLUMN 277
-#define COMMIT 278
-#define CONSTRAINT 279
-#define CREATE 280
-#define CROSS 281
-#define CURRENT 282
-#define CURRENT_DATE 283
-#define CURRENT_TIME 284
-#define CURRENT_TIMESTAMP 285
-#define CURRENT_USER 286
-#define CURSOR 287
-#define DAY_P 288
-#define DECIMAL 289
-#define DECLARE 290
-#define DEFAULT 291
-#define DELETE 292
-#define DESC 293
-#define DISTINCT 294
-#define DOUBLE 295
-#define DROP 296
-#define END_TRANS 297
-#define EXECUTE 298
-#define EXISTS 299
-#define EXTRACT 300
-#define FETCH 301
-#define FLOAT 302
-#define FOR 303
-#define FOREIGN 304
-#define FROM 305
-#define FULL 306
-#define GRANT 307
-#define GROUP 308
-#define HAVING 309
-#define HOUR_P 310
-#define IN 311
-#define INNER_P 312
-#define INSERT 313
-#define INTERVAL 314
-#define INTO 315
-#define IS 316
-#define JOIN 317
-#define KEY 318
-#define LANGUAGE 319
-#define LEADING 320
-#define LEFT 321
-#define LIKE 322
-#define LOCAL 323
-#define MATCH 324
-#define MINUTE_P 325
-#define MONTH_P 326
-#define NAMES 327
-#define NATIONAL 328
-#define NATURAL 329
-#define NCHAR 330
-#define NO 331
-#define NOT 332
-#define NOTIFY 333
-#define NULL_P 334
-#define NUMERIC 335
-#define ON 336
-#define OPTION 337
-#define OR 338
-#define ORDER 339
-#define OUTER_P 340
-#define PARTIAL 341
-#define POSITION 342
-#define PRECISION 343
-#define PRIMARY 344
-#define PRIVILEGES 345
-#define PROCEDURE 346
-#define PUBLIC 347
-#define REFERENCES 348
-#define REVOKE 349
-#define RIGHT 350
-#define ROLLBACK 351
-#define SECOND_P 352
-#define SELECT 353
-#define SET 354
-#define SUBSTRING 355
-#define TABLE 356
-#define TIME 357
-#define TIMESTAMP 358
-#define TIMEZONE_HOUR 359
-#define TIMEZONE_MINUTE 360
-#define TO 361
-#define TRAILING 362
-#define TRANSACTION 363
-#define TRIM 364
-#define UNION 365
-#define UNIQUE 366
-#define UPDATE 367
-#define USER 368
-#define USING 369
-#define VALUES 370
-#define VARCHAR 371
-#define VARYING 372
-#define VIEW 373
-#define WHERE 374
-#define WITH 375
-#define WORK 376
-#define YEAR_P 377
-#define ZONE 378
-#define FALSE_P 379
-#define TRIGGER 380
-#define TRUE_P 381
-#define TYPE_P 382
-#define ABORT_TRANS 383
-#define AFTER 384
-#define AGGREGATE 385
-#define ANALYZE 386
-#define BACKWARD 387
-#define BEFORE 388
-#define BINARY 389
-#define CACHE 390
-#define CLUSTER 391
-#define COPY 392
-#define CYCLE 393
-#define DATABASE 394
-#define DELIMITERS 395
-#define DO 396
-#define EACH 397
-#define EXPLAIN 398
-#define EXTEND 399
-#define FORWARD 400
-#define FUNCTION 401
-#define HANDLER 402
-#define INCREMENT 403
-#define INDEX 404
-#define INHERITS 405
-#define INSTEAD 406
-#define ISNULL 407
-#define LANCOMPILER 408
-#define LISTEN 409
-#define LOAD 410
-#define LOCK_P 411
-#define LOCATION 412
-#define MAXVALUE 413
-#define MINVALUE 414
-#define MOVE 415
-#define NEW 416
-#define NONE 417
-#define NOTHING 418
-#define NOTNULL 419
-#define OIDS 420
-#define OPERATOR 421
-#define PROCEDURAL 422
-#define RECIPE 423
-#define RENAME 424
-#define RESET 425
-#define RETURNS 426
-#define ROW 427
-#define RULE 428
-#define SEQUENCE 429
-#define SERIAL 430
-#define SETOF 431
-#define SHOW 432
-#define START 433
-#define STATEMENT 434
-#define STDIN 435
-#define STDOUT 436
-#define TRUSTED 437
-#define VACUUM 438
-#define VERBOSE 439
-#define VERSION 440
-#define ENCODING 441
-#define UNLISTEN 442
-#define ARCHIVE 443
-#define PASSWORD 444
-#define CREATEDB 445
-#define NOCREATEDB 446
-#define CREATEUSER 447
-#define NOCREATEUSER 448
-#define VALID 449
-#define UNTIL 450
-#define IDENT 451
-#define SCONST 452
-#define Op 453
-#define ICONST 454
-#define PARAM 455
-#define FCONST 456
-#define OP 457
-#define UMINUS 458
-#define TYPECAST 459
+#define ABSOLUTE 258
+#define ACTION 259
+#define ADD 260
+#define ALL 261
+#define ALTER 262
+#define AND 263
+#define ANY 264
+#define AS 265
+#define ASC 266
+#define BEGIN_TRANS 267
+#define BETWEEN 268
+#define BOTH 269
+#define BY 270
+#define CASCADE 271
+#define CAST 272
+#define CHAR 273
+#define CHARACTER 274
+#define CHECK 275
+#define CLOSE 276
+#define COLLATE 277
+#define COLUMN 278
+#define COMMIT 279
+#define CONSTRAINT 280
+#define CREATE 281
+#define CROSS 282
+#define CURRENT 283
+#define CURRENT_DATE 284
+#define CURRENT_TIME 285
+#define CURRENT_TIMESTAMP 286
+#define CURRENT_USER 287
+#define CURSOR 288
+#define DAY_P 289
+#define DECIMAL 290
+#define DECLARE 291
+#define DEFAULT 292
+#define DELETE 293
+#define DESC 294
+#define DISTINCT 295
+#define DOUBLE 296
+#define DROP 297
+#define END_TRANS 298
+#define EXECUTE 299
+#define EXISTS 300
+#define EXTRACT 301
+#define FETCH 302
+#define FLOAT 303
+#define FOR 304
+#define FOREIGN 305
+#define FROM 306
+#define FULL 307
+#define GRANT 308
+#define GROUP 309
+#define HAVING 310
+#define HOUR_P 311
+#define IN 312
+#define INNER_P 313
+#define INSENSITIVE 314
+#define INSERT 315
+#define INTERVAL 316
+#define INTO 317
+#define IS 318
+#define JOIN 319
+#define KEY 320
+#define LANGUAGE 321
+#define LEADING 322
+#define LEFT 323
+#define LIKE 324
+#define LOCAL 325
+#define MATCH 326
+#define MINUTE_P 327
+#define MONTH_P 328
+#define NAMES 329
+#define NATIONAL 330
+#define NATURAL 331
+#define NCHAR 332
+#define NEXT 333
+#define NO 334
+#define NOT 335
+#define NOTIFY 336
+#define NULL_P 337
+#define NUMERIC 338
+#define OF 339
+#define ON 340
+#define ONLY 341
+#define OPTION 342
+#define OR 343
+#define ORDER 344
+#define OUTER_P 345
+#define PARTIAL 346
+#define POSITION 347
+#define PRECISION 348
+#define PRIMARY 349
+#define PRIOR 350
+#define PRIVILEGES 351
+#define PROCEDURE 352
+#define PUBLIC 353
+#define READ 354
+#define REFERENCES 355
+#define RELATIVE 356
+#define REVOKE 357
+#define RIGHT 358
+#define ROLLBACK 359
+#define SCROLL 360
+#define SECOND_P 361
+#define SELECT 362
+#define SET 363
+#define SUBSTRING 364
+#define TABLE 365
+#define TIME 366
+#define TIMESTAMP 367
+#define TIMEZONE_HOUR 368
+#define TIMEZONE_MINUTE 369
+#define TO 370
+#define TRAILING 371
+#define TRANSACTION 372
+#define TRIM 373
+#define UNION 374
+#define UNIQUE 375
+#define UPDATE 376
+#define USER 377
+#define USING 378
+#define VALUES 379
+#define VARCHAR 380
+#define VARYING 381
+#define VIEW 382
+#define WHERE 383
+#define WITH 384
+#define WORK 385
+#define YEAR_P 386
+#define ZONE 387
+#define FALSE_P 388
+#define TRIGGER 389
+#define TRUE_P 390
+#define TYPE_P 391
+#define ABORT_TRANS 392
+#define AFTER 393
+#define AGGREGATE 394
+#define ANALYZE 395
+#define BACKWARD 396
+#define BEFORE 397
+#define BINARY 398
+#define CACHE 399
+#define CLUSTER 400
+#define COPY 401
+#define CYCLE 402
+#define DATABASE 403
+#define DELIMITERS 404
+#define DO 405
+#define EACH 406
+#define EXPLAIN 407
+#define EXTEND 408
+#define FORWARD 409
+#define FUNCTION 410
+#define HANDLER 411
+#define INCREMENT 412
+#define INDEX 413
+#define INHERITS 414
+#define INSTEAD 415
+#define ISNULL 416
+#define LANCOMPILER 417
+#define LISTEN 418
+#define LOAD 419
+#define LOCK_P 420
+#define LOCATION 421
+#define MAXVALUE 422
+#define MINVALUE 423
+#define MOVE 424
+#define NEW 425
+#define NONE 426
+#define NOTHING 427
+#define NOTNULL 428
+#define OIDS 429
+#define OPERATOR 430
+#define PROCEDURAL 431
+#define RECIPE 432
+#define RENAME 433
+#define RESET 434
+#define RETURNS 435
+#define ROW 436
+#define RULE 437
+#define SEQUENCE 438
+#define SERIAL 439
+#define SETOF 440
+#define SHOW 441
+#define START 442
+#define STATEMENT 443
+#define STDIN 444
+#define STDOUT 445
+#define TRUSTED 446
+#define VACUUM 447
+#define VERBOSE 448
+#define VERSION 449
+#define ENCODING 450
+#define UNLISTEN 451
+#define ARCHIVE 452
+#define PASSWORD 453
+#define CREATEDB 454
+#define NOCREATEDB 455
+#define CREATEUSER 456
+#define NOCREATEUSER 457
+#define VALID 458
+#define UNTIL 459
+#define IDENT 460
+#define SCONST 461
+#define Op 462
+#define ICONST 463
+#define PARAM 464
+#define FCONST 465
+#define OP 466
+#define UMINUS 467
+#define TYPECAST 468
extern YYSTYPE yylval;
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-15 10:05:05 +0000