| 1 |
/* |
| 2 |
* This SQL Parser is copied from the O'Reilly Lex & Yacc book, 2nd Edition, |
| 3 |
* 1995, by John R. Levine, Tony Mason, and Doug Brown. I only copied the |
| 4 |
* query-related language subset. Added some stuff so it could interface w/ |
| 5 |
* Obj_Srvr.pm. |
| 6 |
* |
| 7 |
* Jeremy Hickerson, 5/21/2003 |
| 8 |
*/ |
| 9 |
|
| 10 |
%{ |
| 11 |
#define YYDEBUG 0 |
| 12 |
extern int yydebug = 0; /* jhjh */ |
| 13 |
|
| 14 |
#include <string.h> |
| 15 |
#include "obj_srvr.h" |
| 16 |
#include "flexdef.h" |
| 17 |
|
| 18 |
char fullname[255]; |
| 19 |
char temp[255]; |
| 20 |
char tmpstr[3]; |
| 21 |
char perl_op[31]; |
| 22 |
char tmp_str[31]; |
| 23 |
|
| 24 |
void yyerror(); |
| 25 |
char *alloca (); |
| 26 |
void end_sql(); |
| 27 |
%} |
| 28 |
|
| 29 |
/* symbolic tokens */ |
| 30 |
/* jhjh %union { |
| 31 |
int intval; |
| 32 |
double floatval; |
| 33 |
char *strval; |
| 34 |
int subtok; |
| 35 |
} */ |
| 36 |
|
| 37 |
%token <strval> NAME |
| 38 |
%token <strval> STRING |
| 39 |
%token <strval> INTNUM APPROXNUM |
| 40 |
|
| 41 |
%type <strval> statement query_exp query_term query_spec opt_all_distinct |
| 42 |
%type <strval> selection table_exp opt_where_clause from_clause |
| 43 |
%type <strval> table_ref_commalist table_ref where_clause opt_order_by_clause |
| 44 |
%type <strval> opt_group_by_clause column_ref_commalist opt_having_clause |
| 45 |
%type <strval> search_condition predicate comparison_predicate between_predicate |
| 46 |
%type <strval> comparison |
| 47 |
%type <strval> like_predicate opt_escape test_for_null in_predicate atom_commalist |
| 48 |
%type <strval> all_or_any_predicate any_all_some existence_test subquery |
| 49 |
%type <strval> scalar_exp scalar_exp_commalist atom parameter_ref function_ref |
| 50 |
%type <strval> literal table column_ref column cursor parameter range_variable |
| 51 |
%type <strval> user sql when_action |
| 52 |
|
| 53 |
/* type for literals */ |
| 54 |
%type <strval> '(' ')' '.' |
| 55 |
|
| 56 |
/* operators */ |
| 57 |
%left <strval> OR |
| 58 |
%left <strval> AND |
| 59 |
%left <strval> NOT |
| 60 |
%left <strval> COMP_EQ /* = */ |
| 61 |
%left <strval> COMP_NE1 /* <> */ |
| 62 |
%left <strval> COMP_NE2 /* != */ |
| 63 |
%left <strval> COMP_LT /* < */ |
| 64 |
%left <strval> COMP_GT /* > */ |
| 65 |
%left <strval> COMP_LE /* <= */ |
| 66 |
%left <strval> COMP_GE /* >= */ |
| 67 |
%left <strval> '+' '-' |
| 68 |
%left <strval> '*' '/' |
| 69 |
%nonassoc <strval> UMINUS |
| 70 |
|
| 71 |
|
| 72 |
/* literal keyword tokens */ |
| 73 |
%token <strval> ALL AMMSC sqlANY AS ASC AUTHORIZATION BETWEEN BY CHARACTER |
| 74 |
%token <strval> CHECK CLOSE CONTINUE CURRENT CURSOR DECIMAL DECLARE DEFAULT |
| 75 |
%token <strval> DESC DISTINCT DOUBLE ESCAPE EXISTS FETCH FLOAT FOR FOREIGN |
| 76 |
%token <strval> FOUND FROM GOTO GROUP HAVING IN INDICATOR INTEGER INTO IS KEY |
| 77 |
%token <strval> LANGUAGE LIKE NULLX NUMERIC OF ON OPEN OPTION ORDER PARAMETER |
| 78 |
%token <strval> PRECISION PRIMARY PRIVILEGES PROCEDURE REAL REFERENCES SCHEMA |
| 79 |
%token <strval> SELECT SMALLINT SOME SQLCODE SQLERROR TO UNION UNIQUE USER |
| 80 |
%token <strval> VALUES WHENEVER WHERE WITH WORK |
| 81 |
|
| 82 |
%% |
| 83 |
|
| 84 |
statement: |
| 85 |
query_exp ';' { end_sql(); return 0; } |
| 86 |
| statement query_exp ';' { end_sql(); return 0; } |
| 87 |
; |
| 88 |
|
| 89 |
/* query expressions */ |
| 90 |
query_exp: |
| 91 |
query_term |
| 92 |
| query_exp UNION query_term |
| 93 |
| query_exp UNION ALL query_term |
| 94 |
; |
| 95 |
|
| 96 |
query_term: |
| 97 |
query_spec |
| 98 |
| '(' query_exp ')' |
| 99 |
; |
| 100 |
|
| 101 |
query_spec: |
| 102 |
SELECT opt_all_distinct selection table_exp { |
| 103 |
strcpy(parsed_sql.column_list, $3); |
| 104 |
} |
| 105 |
; |
| 106 |
|
| 107 |
opt_all_distinct: |
| 108 |
/* empty */ |
| 109 |
| ALL |
| 110 |
| DISTINCT |
| 111 |
; |
| 112 |
|
| 113 |
selection: |
| 114 |
scalar_exp_commalist |
| 115 |
| '*' |
| 116 |
; |
| 117 |
|
| 118 |
table_exp: |
| 119 |
from_clause |
| 120 |
opt_where_clause |
| 121 |
opt_order_by_clause opt_group_by_clause opt_having_clause |
| 122 |
; |
| 123 |
|
| 124 |
opt_where_clause: |
| 125 |
/* empty */ |
| 126 |
| where_clause |
| 127 |
; |
| 128 |
|
| 129 |
from_clause: |
| 130 |
FROM table_ref_commalist { |
| 131 |
strcpy(parsed_sql.table_list, $2); |
| 132 |
} |
| 133 |
; |
| 134 |
|
| 135 |
table_ref_commalist: |
| 136 |
table_ref |
| 137 |
| table_ref_commalist ',' table_ref { |
| 138 |
printf("Multiple-table query not handled\n"); glb_errflag = 1; |
| 139 |
} |
| 140 |
; |
| 141 |
|
| 142 |
table_ref: |
| 143 |
table |
| 144 |
| table range_variable |
| 145 |
; |
| 146 |
|
| 147 |
where_clause: |
| 148 |
WHERE search_condition { |
| 149 |
strcpy(parsed_sql.where_clause, $2); |
| 150 |
} |
| 151 |
; |
| 152 |
|
| 153 |
opt_order_by_clause: |
| 154 |
/* empty */ |
| 155 |
| ORDER BY column_ref_commalist { |
| 156 |
strcpy(parsed_sql.order_by, $3); |
| 157 |
} |
| 158 |
; |
| 159 |
|
| 160 |
opt_group_by_clause: |
| 161 |
/* empty */ |
| 162 |
| GROUP BY column_ref_commalist |
| 163 |
; |
| 164 |
|
| 165 |
column_ref_commalist: |
| 166 |
column_ref |
| 167 |
| column_ref_commalist ',' column_ref { |
| 168 |
strcpy($$, $1); |
| 169 |
strcat($$, ","); |
| 170 |
strcat($$, $3); |
| 171 |
} |
| 172 |
; |
| 173 |
|
| 174 |
opt_having_clause: |
| 175 |
/* empty */ |
| 176 |
| HAVING search_condition { |
| 177 |
printf("HAVING condition not handled\n"); glb_errflag = 1; |
| 178 |
} |
| 179 |
; |
| 180 |
|
| 181 |
|
| 182 |
/* search conditions */ |
| 183 |
search_condition: |
| 184 |
search_condition OR search_condition { |
| 185 |
strcpy($$, $1); |
| 186 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 187 |
strcat($$, $2); |
| 188 |
strcat($$, ","); |
| 189 |
strcat($$, $3); |
| 190 |
} |
| 191 |
| search_condition AND search_condition { |
| 192 |
strcpy($$, $1); |
| 193 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 194 |
strcat($$, $2); |
| 195 |
strcat($$, ","); |
| 196 |
strcat($$, $3); |
| 197 |
} |
| 198 |
| NOT search_condition { |
| 199 |
strcpy($$, $1); |
| 200 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 201 |
strcat($$, $2); |
| 202 |
} |
| 203 |
| '(' search_condition ')' { |
| 204 |
strcpy($$, $1); |
| 205 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 206 |
strcat($$, $2); |
| 207 |
strcat($$, ","); |
| 208 |
strcat($$, $3); |
| 209 |
} |
| 210 |
| predicate |
| 211 |
; |
| 212 |
|
| 213 |
predicate: |
| 214 |
comparison_predicate |
| 215 |
| between_predicate |
| 216 |
| like_predicate |
| 217 |
| test_for_null |
| 218 |
| in_predicate |
| 219 |
| all_or_any_predicate |
| 220 |
| existence_test |
| 221 |
; |
| 222 |
|
| 223 |
comparison_predicate: |
| 224 |
scalar_exp comparison scalar_exp { |
| 225 |
|
| 226 |
strcpy(perl_op, |
| 227 |
call_perl_tr_op(parsed_sql.table_list, $1, $2, $3) ); |
| 228 |
/* only one table allowed in "table_list" */ |
| 229 |
|
| 230 |
if ( strlen(perl_op) == 15 && |
| 231 |
perl_op[0] == 'd' && |
| 232 |
perl_op[1] == 'a' && |
| 233 |
perl_op[2] == 't' && |
| 234 |
perl_op[3] == 'e' && |
| 235 |
perl_op[4] == '_' && |
| 236 |
perl_op[5] == 'c' && |
| 237 |
perl_op[6] == 'o' && |
| 238 |
perl_op[7] == 'm' && |
| 239 |
perl_op[8] == 'p' && |
| 240 |
perl_op[9] == 'a' && |
| 241 |
perl_op[10] == 'r' && |
| 242 |
perl_op[11] == 'e' ) { |
| 243 |
|
| 244 |
strcpy(tmp_str, perl_op); |
| 245 |
perl_op[0] = tmp_str[13]; /* tmp_str[12] is '_' */ |
| 246 |
perl_op[1] = tmp_str[14]; |
| 247 |
perl_op[2] = '\0'; |
| 248 |
|
| 249 |
sprintf($$, "date_compare(,%s,\\\\,'%s'\\\\,%s)", |
| 250 |
$1, perl_op, $3); |
| 251 |
/* commas around 1st %s translate into spaces; */ |
| 252 |
/* need spaces so $subst_where will be correct */ |
| 253 |
/* double escape so perl will see as the */ |
| 254 |
/* character '\' rather than a perl escape */ |
| 255 |
} |
| 256 |
else { |
| 257 |
strcpy($$, $1); |
| 258 |
strcat($$, ","); /* use comma's for spaces because of |
| 259 |
obj_srvr.pm */ |
| 260 |
strcat($$, perl_op); |
| 261 |
strcat($$, ","); |
| 262 |
strcat($$, $3); |
| 263 |
} |
| 264 |
} |
| 265 |
| scalar_exp comparison subquery |
| 266 |
; |
| 267 |
|
| 268 |
comparison: |
| 269 |
COMP_EQ |
| 270 |
| COMP_NE1 |
| 271 |
| COMP_NE2 |
| 272 |
| COMP_LT |
| 273 |
| COMP_GT |
| 274 |
| COMP_LE |
| 275 |
| COMP_GE |
| 276 |
; |
| 277 |
|
| 278 |
between_predicate: |
| 279 |
scalar_exp NOT BETWEEN scalar_exp AND scalar_exp { |
| 280 |
|
| 281 |
strcpy(perl_op, |
| 282 |
call_perl_tr_op(parsed_sql.table_list, $1, ">=", $4) ); |
| 283 |
/* only one table allowed in "table_list" */ |
| 284 |
|
| 285 |
if ( strlen(perl_op) == 15 && |
| 286 |
perl_op[0] == 'd' && |
| 287 |
perl_op[1] == 'a' && |
| 288 |
perl_op[2] == 't' && |
| 289 |
perl_op[3] == 'e' && |
| 290 |
perl_op[4] == '_' && |
| 291 |
perl_op[5] == 'c' && |
| 292 |
perl_op[6] == 'o' && |
| 293 |
perl_op[7] == 'm' && |
| 294 |
perl_op[8] == 'p' && |
| 295 |
perl_op[9] == 'a' && |
| 296 |
perl_op[10] == 'r' && |
| 297 |
perl_op[11] == 'e' ) { |
| 298 |
|
| 299 |
sprintf($$, "!(date_compare(,%s,\\\\,'%s'\\\\,%s),and,date_compare(,%s,\\\\,'%s'\\\\,%s))", |
| 300 |
$1, ">=", $4, $1, "<=", $6); |
| 301 |
/* commas around 1st %s translate into spaces; */ |
| 302 |
/* need spaces so $subst_where will be correct */ |
| 303 |
/* double escape so perl will see as the */ |
| 304 |
/* character '\' rather than a perl escape */ |
| 305 |
} |
| 306 |
else { |
| 307 |
strcpy($$, "!("); |
| 308 |
strcat($$, $1); |
| 309 |
strcat($$, ","); /* use comma's for spaces because of |
| 310 |
obj_srvr.pm */ |
| 311 |
strcat($$, ">="); |
| 312 |
strcat($$, ","); |
| 313 |
strcat($$, $4); |
| 314 |
strcat($$, ",and,"); |
| 315 |
strcat($$, $1); |
| 316 |
strcat($$, ","); |
| 317 |
strcat($$, "<="); |
| 318 |
strcat($$, ","); |
| 319 |
strcat($$, $6); |
| 320 |
strcat($$, ")"); |
| 321 |
} |
| 322 |
} |
| 323 |
|
| 324 |
| scalar_exp BETWEEN scalar_exp AND scalar_exp { |
| 325 |
|
| 326 |
strcpy(perl_op, |
| 327 |
call_perl_tr_op(parsed_sql.table_list, $1, ">=", $3) ); |
| 328 |
/* only one table allowed in "table_list" */ |
| 329 |
|
| 330 |
if ( strlen(perl_op) == 15 && |
| 331 |
perl_op[0] == 'd' && |
| 332 |
perl_op[1] == 'a' && |
| 333 |
perl_op[2] == 't' && |
| 334 |
perl_op[3] == 'e' && |
| 335 |
perl_op[4] == '_' && |
| 336 |
perl_op[5] == 'c' && |
| 337 |
perl_op[6] == 'o' && |
| 338 |
perl_op[7] == 'm' && |
| 339 |
perl_op[8] == 'p' && |
| 340 |
perl_op[9] == 'a' && |
| 341 |
perl_op[10] == 'r' && |
| 342 |
perl_op[11] == 'e' ) { |
| 343 |
|
| 344 |
sprintf($$, "date_compare(,%s,\\\\,'%s'\\\\,%s),and,date_compare(,%s,\\\\,'%s'\\\\,%s)", |
| 345 |
$1, ">=", $3, $1, "<=", $5); |
| 346 |
/* commas around 1st %s translate into spaces; */ |
| 347 |
/* need spaces so $subst_where will be correct */ |
| 348 |
/* double escape so perl will see as the */ |
| 349 |
/* character '\' rather than a perl escape */ |
| 350 |
} |
| 351 |
else { |
| 352 |
strcpy($$, $1); |
| 353 |
strcat($$, ","); /* use comma's for spaces because of |
| 354 |
obj_srvr.pm */ |
| 355 |
strcat($$, ">="); |
| 356 |
strcat($$, ","); |
| 357 |
strcat($$, $3); |
| 358 |
strcat($$, ",and,"); |
| 359 |
strcat($$, $1); |
| 360 |
strcat($$, ","); |
| 361 |
strcat($$, "<="); |
| 362 |
strcat($$, ","); |
| 363 |
strcat($$, $5); |
| 364 |
} |
| 365 |
} |
| 366 |
; |
| 367 |
|
| 368 |
like_predicate: |
| 369 |
scalar_exp NOT LIKE atom opt_escape { |
| 370 |
strcpy($$, call_perl_like2re($1, $2, $3, $4) ); |
| 371 |
} |
| 372 |
| scalar_exp LIKE atom opt_escape { |
| 373 |
strcpy($$, call_perl_like2re($1, $2, $3, "") ); |
| 374 |
} |
| 375 |
; |
| 376 |
|
| 377 |
|
| 378 |
opt_escape: |
| 379 |
/* empty */ |
| 380 |
| ESCAPE atom { |
| 381 |
printf("Escape not handled\n"); glb_errflag = 1; |
| 382 |
} |
| 383 |
; |
| 384 |
|
| 385 |
test_for_null: |
| 386 |
column_ref IS NOT NULLX { |
| 387 |
strcpy($$, $1); |
| 388 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 389 |
strcat($$, $2); |
| 390 |
strcat($$, ","); |
| 391 |
strcat($$, $3); |
| 392 |
strcat($$, ","); |
| 393 |
strcat($$, $4); |
| 394 |
} |
| 395 |
| column_ref IS NULLX { |
| 396 |
strcpy($$, $1); |
| 397 |
strcat($$, ","); |
| 398 |
strcat($$, $2); |
| 399 |
strcat($$, ","); |
| 400 |
strcat($$, $3); |
| 401 |
} |
| 402 |
; |
| 403 |
|
| 404 |
in_predicate: |
| 405 |
scalar_exp NOT IN subquery { |
| 406 |
printf("Subquery not handled\n"); glb_errflag = 1; |
| 407 |
} |
| 408 |
| scalar_exp IN subquery { |
| 409 |
printf("Subquery not handled\n"); glb_errflag = 1; |
| 410 |
} |
| 411 |
| scalar_exp NOT IN '(' atom_commalist ')' { |
| 412 |
/* Translate into equivalent perl expression for reval in Obj_Srvr.pm */ |
| 413 |
/* (Use comma's for spaces because that's how Obj_Srvr.pm expects */ |
| 414 |
/* it. Obj_Srvr.pm will convert comma's to spaces before reval.) */ |
| 415 |
/* perl-escape foward slashes and parentheses to avoid screwing up */ |
| 416 |
/* first round of perl parsing (wh/ uses reg. exp's), before reval(). */ |
| 417 |
strcpy($$, "!grep \\/^"); |
| 418 |
strcat($$, $1); |
| 419 |
strcat($$, "$\\/\\\\, "); /* double escape so perl will see as the */ |
| 420 |
/* character '\' rather than a perl escape */ |
| 421 |
strcat($$, "\\("); |
| 422 |
strcat($$, $4); |
| 423 |
strcat($$, "\\)"); |
| 424 |
} |
| 425 |
| scalar_exp IN '(' atom_commalist ')' { |
| 426 |
/* Translate into equivalent perl expression for reval in Obj_Srvr.pm */ |
| 427 |
strcpy($$, "grep \\/^"); |
| 428 |
strcat($$, $1); |
| 429 |
strcat($$, "$\\/\\\\, "); |
| 430 |
strcat($$, "\\("); |
| 431 |
strcat($$, $4); |
| 432 |
strcat($$, "\\)"); |
| 433 |
} |
| 434 |
; |
| 435 |
|
| 436 |
atom_commalist: |
| 437 |
atom |
| 438 |
| atom_commalist ',' atom { |
| 439 |
strcpy($$, $1); |
| 440 |
strcat($$, "\\\\,"); /* save from perl-parse (see in_predicate:) */ |
| 441 |
strcat($$, $3); |
| 442 |
} |
| 443 |
; |
| 444 |
|
| 445 |
all_or_any_predicate: |
| 446 |
scalar_exp comparison any_all_some subquery { |
| 447 |
printf("Subquery not handled\n"); glb_errflag = 1; |
| 448 |
} |
| 449 |
; |
| 450 |
|
| 451 |
any_all_some: |
| 452 |
sqlANY |
| 453 |
| ALL |
| 454 |
| SOME |
| 455 |
; |
| 456 |
|
| 457 |
existence_test: |
| 458 |
EXISTS subquery |
| 459 |
{ printf("Subquery not handled\n"); glb_errflag = 1; } |
| 460 |
; |
| 461 |
|
| 462 |
/* jhjh - we won't handle subqueries; shouldn't need w/ a simple data model */ |
| 463 |
subquery: |
| 464 |
'(' SELECT opt_all_distinct selection table_exp ')' |
| 465 |
{ printf("Subquery not handled\n"); glb_errflag = 1; } |
| 466 |
; |
| 467 |
|
| 468 |
|
| 469 |
/* scalar expressions */ |
| 470 |
scalar_exp: |
| 471 |
scalar_exp '+' scalar_exp { |
| 472 |
strcpy($$, $1); |
| 473 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 474 |
strcat($$, $2); |
| 475 |
strcat($$, ","); |
| 476 |
strcat($$, $3); |
| 477 |
} |
| 478 |
| scalar_exp '-' scalar_exp { |
| 479 |
strcpy($$, $1); |
| 480 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 481 |
strcat($$, $2); |
| 482 |
strcat($$, ","); |
| 483 |
strcat($$, $3); |
| 484 |
} |
| 485 |
| scalar_exp '*' scalar_exp { |
| 486 |
strcpy($$, $1); |
| 487 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 488 |
strcat($$, $2); |
| 489 |
strcat($$, ","); |
| 490 |
strcat($$, $3); |
| 491 |
} |
| 492 |
| scalar_exp '/' scalar_exp { |
| 493 |
strcpy($$, $1); |
| 494 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 495 |
strcat($$, $2); |
| 496 |
strcat($$, ","); |
| 497 |
strcat($$, $3); |
| 498 |
} |
| 499 |
| '+' scalar_exp %prec UMINUS { /* jhjh - what is this */ |
| 500 |
strcpy($$, $1); |
| 501 |
strcat($$, ","); |
| 502 |
strcat($$, $2); |
| 503 |
} |
| 504 |
| '-' scalar_exp %prec UMINUS { /* jhjh - what is this */ |
| 505 |
strcpy($$, $1); |
| 506 |
strcat($$, ","); |
| 507 |
strcat($$, $2); |
| 508 |
} |
| 509 |
| atom /* jhjh - ignore multi-word possibilities here */ |
| 510 |
| column_ref |
| 511 |
| function_ref /* jhjh - ignore functions */ |
| 512 |
| '(' scalar_exp ')' { |
| 513 |
strcpy($$, $1); |
| 514 |
strcat($$, ","); /* use comma's for spaces because of obj_srvr.pm */ |
| 515 |
strcat($$, $2); |
| 516 |
strcat($$, ","); |
| 517 |
strcat($$, $3); |
| 518 |
} |
| 519 |
; |
| 520 |
|
| 521 |
scalar_exp_commalist: |
| 522 |
scalar_exp |
| 523 |
| scalar_exp_commalist ',' scalar_exp { |
| 524 |
strcpy($$, $1); |
| 525 |
strcat($$, ","); |
| 526 |
strcat($$, $3); |
| 527 |
} |
| 528 |
; |
| 529 |
atom: |
| 530 |
parameter_ref |
| 531 |
| literal |
| 532 |
| USER |
| 533 |
; |
| 534 |
|
| 535 |
parameter_ref: |
| 536 |
parameter |
| 537 |
| parameter parameter |
| 538 |
| parameter INDICATOR parameter |
| 539 |
; |
| 540 |
|
| 541 |
function_ref: |
| 542 |
AMMSC '(' '*' ')' |
| 543 |
| AMMSC '(' DISTINCT column_ref ')' |
| 544 |
| AMMSC '(' ALL scalar_exp ')' |
| 545 |
| AMMSC '(' scalar_exp ')' |
| 546 |
; |
| 547 |
|
| 548 |
literal: |
| 549 |
STRING |
| 550 |
| INTNUM |
| 551 |
| APPROXNUM |
| 552 |
; |
| 553 |
|
| 554 |
|
| 555 |
/* miscellaneous */ |
| 556 |
table: |
| 557 |
NAME |
| 558 |
|
| 559 |
| NAME '.' NAME |
| 560 |
; |
| 561 |
|
| 562 |
column_ref: |
| 563 |
INTNUM |
| 564 |
| NAME |
| 565 |
| NAME '.' NAME { strcpy($$, $3) } |
| 566 |
| NAME '.' NAME '.' NAME |
| 567 |
| column_ref NAME { |
| 568 |
printf("Multiple-table query not handled\n"); glb_errflag = 1; |
| 569 |
} |
| 570 |
; |
| 571 |
|
| 572 |
|
| 573 |
/* the various things you can name */ |
| 574 |
column: |
| 575 |
NAME |
| 576 |
; |
| 577 |
|
| 578 |
cursor: |
| 579 |
NAME |
| 580 |
; |
| 581 |
|
| 582 |
parameter: |
| 583 |
PARAMETER /* :name handled in parser */ |
| 584 |
; |
| 585 |
|
| 586 |
range_variable: |
| 587 |
NAME { |
| 588 |
printf("Table alias not handled\n"); glb_errflag = 1; |
| 589 |
} |
| 590 |
; |
| 591 |
|
| 592 |
user: |
| 593 |
NAME |
| 594 |
; |
| 595 |
|
| 596 |
|
| 597 |
/* embedded condition things */ |
| 598 |
sql: |
| 599 |
WHENEVER NOT FOUND when_action |
| 600 |
| WHENEVER SQLERROR when_action |
| 601 |
; |
| 602 |
|
| 603 |
when_action: |
| 604 |
GOTO NAME |
| 605 |
| CONTINUE |
| 606 |
; |
| 607 |
|
| 608 |
%% |
| 609 |
|
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