| blob | 0143a8dd5078a023d0fe486008700e11bccbb1b2 |
1 %{
2 #include <CSql.h>
3 #include <stdlib.h>
4 #include "Parser.h"
6 class Predicate;
7 ParsedData *parsedData;
8 extern char yytext[];
9 int yylex( void );
10 void yyerror(const char* Msg);
11 %}
14 %union
15 {
16 char *stringval;
17 void *predicate;
18 void *Expression;
19 void *FunctionType;
20 }
22 %left OR
23 %left AND
24 %left '+' '-'
25 %left '*' '/' '%'
26 %nonassoc UMINUS
27 %token <stringval> STRING FIELD NUMBER_STRING BINARY_STRING DOUBLE OPERATOR PARAMETER ALLTABLE DESCRIBE PRIMARYINFO AUTO_INCREMENT GETCATALOGS GETDATATYPES GETTABLETYPES IMPORTEDKEY EXPORTEDKEY
28 %token <stringval> SELECT FROM WHERE BETWEEN IN AND OR NOT AS LIMIT OFFSET INNER OUTER CROSS JOIN LEFT IS
29 %token <stringval> INSERT INTO VALUES EXPLAIN PLAN
30 %token <stringval> DELETE UPDATE SET NULL_VALUE
31 %token <stringval> CREATE TABLE PRIMARY KEY DEFAULT INDEX ON HASH TREE TRIE UNIQUE DROP SIZE FOREIGN REFERENCES COMPACT TRUNCATE
32 %token <stringval> CACHE CONDITION FIELDLIST PK DIRECT DSN UNCACHE NOSCHEMA
33 %token <stringval> INT_TYPE LONG_TYPE SHORT_TYPE DOUBLE_TYPE TIMESTAMP_TYPE DATE_TYPE CHAR_TYPE TIME_TYPE BIGINT_TYPE FLOAT_TYPE TINYINT_TYPE BINARY_TYPE VARCHAR_TYPE
34 %token <stringval> DATE_DIFF DATE_ADD DATE_SUB HOUR MINUTE SECOND YEAR MONTH DAY INTERVAL TIME_DIFF TIME_ADD TIME_SUB TIMESTAMP_DIFF TIMESTAMP_ADD TIMESTAMP_SUB EXTRACT NOW
35 %token <stringval> USER PASSWORD ALTER FLUSH ADD COLUMN MODIFY RENAME TO
36 %token <stringval> MIN MAX AVG SUM COUNT GROUP BY HAVING ORDER ASC DESC DISTINCT
37 %token ';' ',' '(' ')'
38 %type <stringval> ident field value not_opt doub_value num_value
39 /*%type <stringval> foreign_key_constraint foreign_key_create foreign_key_constraint_L*/
40 %type <predicate> conditions condition hconditions hcondition
41 %type <Expression> stmt_exp atom function_opt
42 %type <FunctionType> date_opt time_opt datetime_opt
43 %%
44 command: select_statement { YYACCEPT; }
45 | insert_statement { YYACCEPT; }
46 | delete_statement { YYACCEPT; }
47 | update_statement { YYACCEPT; }
48 | ddl_statement { YYACCEPT; }
49 | internal_statement { YYACCEPT; }
50 | cache_statement { YYACCEPT; }
51 | copy_table_statement { YYACCEPT; }
52 | user_manager_statement { YYACCEPT; }
53 | management_statement { YYACCEPT; }
54 | alter_statement { YYACCEPT; }
55 | other {YYACCEPT;}
56 ;
57 alter_statement: ALTER TABLE ident ADD '(' create_defn_list_con ')' semicolon_opt
58 {
59 parsedData->setStmtType(AlterStatement);
60 parsedData->setAlterType(ALTERADD);
61 parsedData->setTableName($3);
62 free($3);
63 }
64 | ALTER TABLE ident DROP COLUMN ident semicolon_opt
65 {
66 parsedData->setStmtType(AlterStatement);
67 parsedData->setAlterType(ALTERDROP);
68 parsedData->setTableName($3);
69 parsedData->setIndexName($6);
70 free($3);
71 }
72 | ALTER TABLE ident MODIFY '(' create_defn ')' semicolon_opt
73 {
74 printf(" Not Implemented\n");
75 free($3);
76 YYABORT;
77 }
78 | RENAME TABLE ident TO ident semicolon_opt
79 {
80 parsedData->setStmtType(AlterStatement);
81 parsedData->setAlterType(ALTERTABLERENAME);
82 parsedData->setTableName($3);
83 parsedData->setIndexName($5);
84 free($3); free($5);
86 }
87 | ALTER TABLE ident RENAME COLUMN ident TO ident semicolon_opt
88 {
89 parsedData->setStmtType(AlterStatement);
90 parsedData->setAlterType(ALTERFIELDRENAME);
91 parsedData->setTableName($3);
92 parsedData->setIndexName($6);
93 parsedData->setPKTableName($8);
94 free($3); free($5); free($8);
95 }
96 | ALTER INDEX ident RENAME TO ident semicolon_opt
97 {
98 parsedData->setStmtType(AlterStatement);
99 parsedData->setAlterType(ALTERINDEXRENAME);
100 parsedData->setTableName($3);
101 parsedData->setIndexName($6);
102 free($3); free($5);
103 }
104 ;
105 management_statement: FLUSH CACHE semicolon_opt
106 {
107 parsedData->setStmtType(MgmtStatement);
108 }
109 ;
110 user_manager_statement: CREATE USER ident PASSWORD STRING semicolon_opt
111 {
112 parsedData->setStmtType(UserStatement);
113 parsedData->createUserNode((char*)$3,(char*)$5);
114 free($3);
115 free($5);
116 }
117 |DROP USER ident semicolon_opt
118 {
119 parsedData->setStmtType(UserStatement);
120 parsedData->dropUserNode((char*)$3);
121 free($3);
122 }
123 | ALTER USER ident SET PASSWORD STRING semicolon_opt
124 {
125 parsedData->setStmtType(UserStatement);
126 parsedData->alterUserNode((char*)$3,(char*)$6);
127 free($3);
128 free($6);
129 }
130 ;
131 copy_table_statement: CREATE TABLE ident AS SELECT opt_distinct field_list FROM table_list where_clause_opt group_by_opt having_opt order_by_opt limit_opt semicolon_opt
132 {
133 parsedData->setStmtType(CopyTableStatement);
134 parsedData->setPKTableName($3);
135 parsedData->setCreateTbl();
136 free($3);
137 }
138 | INSERT INTO ident AS SELECT opt_distinct field_list FROM table_list where_clause_opt group_by_opt having_opt order_by_opt limit_opt semicolon_opt
139 {
140 parsedData->setStmtType(CopyTableStatement);
141 parsedData->setPKTableName($3);
142 free($3);
143 }
144 ;
145 internal_statement: COMPACT TABLE ident
146 {
147 parsedData->setStmtType(CompactTableStatement);
148 parsedData->setTableName($3);
149 free($3);
150 }
151 ;
152 other: ALLTABLE
153 {
154 parsedData->setStmtType(MetaStatement);
155 parsedData->setResultSetPlan(GetTables);
156 }
157 | DESCRIBE table
158 {
159 parsedData->setStmtType(MetaStatement);
160 parsedData->setResultSetPlan(GetColumns);
161 }
162 | DESCRIBE INDEX table
163 {
164 parsedData->setStmtType(MetaStatement);
165 parsedData->setResultSetPlan(GetIndexes);
167 }
168 | PRIMARYINFO table
169 {
170 parsedData->setStmtType(MetaStatement);
171 parsedData->setResultSetPlan(GetPriIndex);
172 }
173 | GETCATALOGS
174 {
175 parsedData->setStmtType(MetaStatement);
176 parsedData->setResultSetPlan(GetCatalogs);
177 }
178 | GETTABLETYPES
179 {
180 parsedData->setStmtType(MetaStatement);
181 parsedData->setResultSetPlan(GetTableType);
182 }
183 | GETDATATYPES
184 {
185 parsedData->setStmtType(MetaStatement);
186 parsedData->setResultSetPlan(GetDataType);
187 }
188 | IMPORTEDKEY table
189 {
190 parsedData->setStmtType(MetaStatement);
191 parsedData->setResultSetPlan(GetImportKey);
192 }
193 | EXPORTEDKEY table
194 {
195 parsedData->setStmtType(MetaStatement);
196 parsedData->setResultSetPlan(GetExportKey);
197 }
198 ;
199 select_statement: opt_explain SELECT opt_distinct field_list FROM table_list where_clause_opt group_by_opt having_opt order_by_opt limit_opt semicolon_opt
200 {
201 parsedData->setStmtType(SelectStatement);
202 parsedData->setCacheWorthy(true);
203 }
204 ;
205 opt_explain: EXPLAIN PLAN
206 {
207 parsedData->setExplain();
208 }
209 |
210 ;
211 opt_distinct: DISTINCT
212 {
213 parsedData->setDistinct();
214 }
215 |
216 ;
217 field_list: field_list field_list_L
218 | field_with_as
219 ;
220 field_list_L: ',' field_with_as
221 ;
222 field_with_as: field
223 | field AS ident
224 {
225 parsedData->insertFieldAlias((char*)$3);
226 free((char*)$3);
227 }
228 ;
229 table_list: table_list table_list_L
230 | table
231 | table join_exp
232 ;
233 join_exp: INNER opt_join table ON conditions join_exp
234 {
235 parsedData->insertJoinType(INNER_JOIN);
236 Condition *cond = parsedData->getCondition();
237 Predicate *pred = cond->getPredicate();
238 if (pred == NULL) {
239 parsedData->setCondition((Predicate*)$5);
240 } else {
241 Predicate *newPred;
242 newPred = parsedData->insertPredicate(pred, OpAnd, (Predicate*)$5);
243 parsedData->setCondition(newPred);
244 }
246 }
247 | LEFT opt_outer opt_join table ON conditions join_exp
248 {
249 parsedData->insertJoinType(LEFT_JOIN);
250 Condition *cond = parsedData->getCondition();
251 Predicate *pred = cond->getPredicate();
252 if (pred == NULL) {
253 parsedData->setCondition((Predicate*)$6);
254 } else {
255 Predicate *newPred;
256 newPred = parsedData->insertPredicate(pred, OpAnd, (Predicate*)$6);
257 parsedData->setCondition(newPred);
258 }
259 }
260 | CROSS opt_join table join_exp
261 {
262 parsedData->insertJoinType(INNER_JOIN);
263 }
264 |
265 ;
266 opt_outer:
267 |OUTER
268 ;
269 opt_join:
270 |JOIN
271 ;
272 table_list_L: ',' table
273 {
274 parsedData->insertJoinType(INNER_JOIN);
275 }
276 ;
278 insert_statement: INSERT INTO ident field_list_opt VALUES '(' value_list ')' semicolon_opt
279 {
280 parsedData->setStmtType(InsertStatement);
281 parsedData->setTableName($3);
282 free($3);
283 }
284 ;
286 field_list_opt:
287 | '(' field_list ')'
288 ;
290 value_list: value_list value_list_L
291 | value
292 {
293 parsedData->insertValue((char*)$1);
294 free($1);
295 }
296 ;
297 value_list_L: ',' value
298 {
299 parsedData->insertValue((char*)$2);
300 free($2);
301 }
302 ;
304 invalue_list: invalue_list invalue_list_L
305 | value
306 {
307 parsedData->insertInValue((char*)$1);
308 free($1);
309 }
310 ;
311 invalue_list_L: ',' value
312 {
313 parsedData->insertInValue((char*)$2);
314 free($2);
315 }
316 ;
318 delete_statement: DELETE FROM ident where_clause_opt semicolon_opt
319 {
320 parsedData->setStmtType(DeleteStatement);
321 parsedData->setTableName($3);
322 free($3);
323 }
324 ;
326 update_statement: UPDATE ident SET assign_list where_clause_opt semicolon_opt
327 {
328 parsedData->setStmtType(UpdateStatement);
329 parsedData->setTableName($2);
330 free( $2 );
331 }
332 ;
334 semicolon_opt: ';'
335 |
336 ;
338 assign_list: assign_list assign_list_L
339 | assign_stmt
340 ;
342 assign_list_L: ',' assign_stmt
343 ;
344 assign_stmt: ident OPERATOR stmt_exp
345 {
346 parsedData->insertUpdateExpression( (char*) $1, (Expression* ) $3);
347 free( $1 ); free($2);
348 }
349 | ident OPERATOR value
350 {
351 parsedData->insertUpdateValue( (char*) $1, (char*) $3);
352 free( $1 ); free($2);free( $3 );
353 }
354 | ident OPERATOR NULL_VALUE
355 {
356 parsedData->insertUpdateValue( (char*) $1, (char*) $3);
357 free( $1 ); free($2);free( $3 );
358 }
359 ;
360 stmt_exp: stmt_exp '/' stmt_exp
361 {
362 Expression* exp;
363 exp=parsedData->insertExpression((Expression *)$1, division, (Expression *)$3);
364 $$=exp;
365 }
366 | stmt_exp '%' stmt_exp
367 {
368 Expression* exp;
369 exp=parsedData->insertExpression((Expression *)$1, modulus, (Expression *)$3);
370 $$=exp;
371 }
372 | stmt_exp '*' stmt_exp
373 {
374 Expression* exp;
375 exp=parsedData->insertExpression((Expression *)$1, multiplication, (Expression *)$3);
376 $$=exp;
377 }
378 | stmt_exp '+' stmt_exp
379 {
380 Expression* exp;
381 exp=parsedData->insertExpression((Expression *)$1, addition, (Expression *)$3);
382 $$=exp;
383 }
384 | stmt_exp '-' stmt_exp
385 {
386 Expression* exp;
387 exp=parsedData->insertExpression((Expression *)$1, subtraction, (Expression *)$3);
388 $$=exp;
389 }
390 | '(' stmt_exp ')'
391 {
392 $$=$2;
393 }
394 | '-' stmt_exp %prec UMINUS
395 {
396 $$ = $2;
397 }
398 | '+' stmt_exp %prec UMINUS
399 {
400 $$ = $2;
401 }
402 | function_opt
403 | atom
404 ;
405 function_opt: DATE_DIFF '(' atom ',' atom ')'
406 {
407 Expression* exp;
408 parsedData->setFunctionType(DATEDIFF);
409 exp=parsedData->insertExpression((Expression *)$3, DATEDIFF, (Expression *)$5);
410 $$=exp;
411 }
412 | DATE_ADD '(' atom INTERVAL atom date_opt ')'
413 {
414 Expression* exp;
415 parsedData->setFunctionType((*(FunctionType *)$6));
416 exp=parsedData->insertExpression((Expression *)$3, (*(FunctionType *)$6), (Expression *)$5);
417 $$=exp;
418 }
419 | DATE_SUB '(' atom INTERVAL atom date_opt ')'
420 {
421 Expression* exp;
422 //parsedData->setFunctionType((*(FunctionType *)$6));
423 parsedData->setFunctionType((FunctionType)((int)(*(FunctionType *)$6)+3));
424 exp=parsedData->insertExpression((Expression *)$3, (FunctionType)((int)(*(FunctionType *)$6)+3), (Expression *)$5);
425 $$=exp;
426 }
427 | TIME_DIFF '(' atom ',' atom ')'
428 {
429 Expression* exp;
430 parsedData->setFunctionType(TIMEDIFF);
431 exp=parsedData->insertExpression((Expression *)$3, TIMEDIFF, (Expression *)$5);
432 $$=exp;
433 }
434 | TIME_ADD '(' atom INTERVAL atom time_opt ')'
435 {
436 Expression* exp;
437 parsedData->setFunctionType((*(FunctionType *)$6));
438 exp=parsedData->insertExpression((Expression *)$3, (*(FunctionType *)$6), (Expression *)$5);
439 $$=exp;
440 }
441 | TIME_SUB '(' atom INTERVAL atom time_opt ')'
442 {
443 Expression* exp;
444 parsedData->setFunctionType((FunctionType)((int)(*(FunctionType *)$6)+3));
445 exp=parsedData->insertExpression((Expression *)$3, (FunctionType)((int)(*(FunctionType *)$6)+3), (Expression *)$5);
446 $$=exp;
447 }
448 | TIMESTAMP_DIFF '(' datetime_opt ',' atom ',' atom ')'
449 {
450 Expression* exp;
451 int diff=0;
452 FunctionType val = (*(FunctionType *)$3);
453 if( val == DATEADDWITHYEAR || val == DATEADDWITHMON || val == DATEADDWITHDAY ) diff = 24;
454 else diff = 21;
455 parsedData->setFunctionType((FunctionType)((int)(*(FunctionType *)$3+diff)));
456 exp=parsedData->insertExpression((Expression *)$5, (FunctionType)((int)(*(FunctionType *)$3)+diff), (Expression *)$7);
457 $$=exp;
458 }
459 | TIMESTAMP_ADD '(' atom INTERVAL atom datetime_opt ')'
460 {
461 Expression* exp;
462 parsedData->setFunctionType((FunctionType)((int)(*(FunctionType *)$6)+12));
463 exp=parsedData->insertExpression((Expression *)$3, (FunctionType)((int)(*(FunctionType *)$6)+12), (Expression *)$5);
464 $$=exp;
465 }
466 | TIMESTAMP_SUB '(' atom INTERVAL atom datetime_opt ')'
467 {
468 Expression* exp;
469 parsedData->setFunctionType((FunctionType)((int)(*(FunctionType *)$6)+15));
470 exp=parsedData->insertExpression((Expression *)$3, (FunctionType)((int)(*(FunctionType *)$6)+15), (Expression *)$5);
471 $$=exp;
472 }
473 | EXTRACT '(' datetime_opt FROM atom ')'
474 {
475 FunctionType val = UNKNOWN_FUNCTION;
476 //if((*(FunctionType *)$3) >=8)
477 // val = (FunctionType)((int)(*(FunctionType *)$3)+36);
478 //else
479 val = (FunctionType)((int)(*(FunctionType *)$3)+30);
480 Expression* exp;
481 parsedData->setFunctionType(val);
482 exp=parsedData->insertExpression((Expression *)$5, val,NULL);
483 $$=exp;
484 }
485 | DATE_TYPE '(' atom ')'
486 {
487 Expression* exp;
488 parsedData->setFunctionType(DATEFROMTIMESTAMP);
489 exp=parsedData->insertExpression((Expression *)$3, DATEFROMTIMESTAMP, NULL);
490 $$=exp;
492 }
493 | TIME_TYPE '(' atom ')'
494 {
495 Expression* exp;
496 parsedData->setFunctionType(TIMEFROMTIMESTAMP);
497 exp=parsedData->insertExpression((Expression *)$3, TIMEFROMTIMESTAMP, NULL);
498 $$=exp;
499 }
500 ;
501 datetime_opt: time_opt
502 {
503 FunctionType val = *(FunctionType *)$1;
504 $$ = &val;
505 }
506 | date_opt
507 {
508 FunctionType val = *(FunctionType *)$1;
509 $$ = &val;
510 }
511 ;
512 time_opt: HOUR
513 {
514 FunctionType val = TIMEADDWITHHOUR;
515 $$ = &val;
516 }
517 | MINUTE
518 {
519 FunctionType val = TIMEADDWITHMIN;
520 $$ = &val;
521 }
522 | SECOND
523 {
524 FunctionType val = TIMEADDWITHSEC;
525 $$ = &val;
526 }
527 ;
528 date_opt: YEAR
529 {
530 FunctionType val = DATEADDWITHYEAR;
531 $$ = &val;
532 }
533 | MONTH
534 {
535 FunctionType val = DATEADDWITHMON;
536 $$ = &val;
537 }
538 | DAY
539 {
540 FunctionType val = DATEADDWITHDAY;
541 $$ = &val;
542 }
543 ;
544 atom : ident
545 {
546 Expression* exp;
547 exp=parsedData->insertExpression((char *)$1);
548 free($1);
549 $$=exp;
550 }
551 | value
552 {
553 Expression* exp;
554 bool flag = false;
555 exp=parsedData->insertExpression((char *)$1, flag);
556 free($1);
557 $$=exp;
558 }
559 | NULL_VALUE
560 {
561 Expression* exp;
562 exp=parsedData->insertExpression("NULL");
563 free($1);
564 $$=exp;
565 }
566 ;
568 where_clause_opt: WHERE conditions
569 {
570 Condition *cond = parsedData->getCondition();
571 Predicate *pred = cond->getPredicate();
572 if (pred == NULL) {
573 parsedData->setCondition((Predicate*)$2);
574 } else {
575 Predicate *newPred;
576 newPred = parsedData->insertPredicate(pred, OpAnd, (Predicate*)$2);
577 parsedData->setCondition(newPred);
578 }
580 }
581 |
582 ;
583 group_by_opt: GROUP BY group_field_list
584 |
585 ;
586 order_by_opt: ORDER BY order_field_list
587 |
588 ;
589 limit_opt: LIMIT NUMBER_STRING
590 {
591 parsedData->setLimit(atoi($2), 0);
592 }
593 | LIMIT NUMBER_STRING OFFSET NUMBER_STRING
594 {
595 parsedData->setLimit(atoi($2), atoi($4));
596 }
597 |
598 ;
599 having_opt: HAVING hconditions
600 |
601 ;
602 group_field_list: group_field_list group_field_list_L
603 | group_field
604 ;
605 group_field_list_L: ',' group_field
606 ;
607 group_field: ident
608 {
609 parsedData->insertGroupField((char*)$1);
610 free( $1 );
611 }
612 ;
613 order_field_list: order_field_list order_field_list_L
614 | order_field
615 ;
616 order_field_list_L: ',' order_field
617 ;
618 order_field: ident
619 {
620 parsedData->insertOrderByField((char*)$1);
621 free( $1 );
622 }
623 | ident ASC
624 {
625 parsedData->insertOrderByField((char*)$1);
626 free( $1 );
627 }
628 | ident DESC
629 {
630 parsedData->insertOrderByField((char*)$1, true);
631 free( $1 );
632 }
633 ;
634 conditions: conditions OR conditions
635 {
636 Predicate *pred;
637 pred = parsedData->insertPredicate((Predicate*) $1, OpOr, (Predicate*) $3);
638 //parsedData->setCondition((Predicate*)pred);
639 $$= pred;
641 }
642 | conditions AND conditions
643 {
644 Predicate *pred;
645 pred = parsedData->insertPredicate((Predicate*) $1, OpAnd, (Predicate*) $3);
646 //parsedData->setCondition((Predicate*)pred);
647 $$= pred;
648 }
649 | '(' conditions ')' { $$=$2; }
650 | NOT '(' conditions ')'
651 {
652 Predicate *pred;
653 pred = parsedData->insertPredicate((Predicate*) $3, OpNot, NULL);
654 //parsedData->setCondition((Predicate*)pred);
655 $$= pred;
657 }
658 | not_opt condition
659 {
660 if( $1 == (char*) 1 )
661 {
662 Predicate *pred;
663 pred = parsedData->insertPredicate((Predicate*) $2, OpNot, NULL);
664 //parsedData->setCondition((Predicate*)pred);
665 $$= pred;
666 }
667 else
668 {
669 //parsedData->setCondition((Predicate*)$2);
670 $$=$2;
671 }
672 }
673 ;
674 hconditions: hconditions OR hconditions
675 {
676 Predicate *pred;
677 pred = parsedData->insertPredicate((Predicate*) $1, OpOr, (Predicate*) $3);
678 parsedData->setHavingCondition((Predicate*)pred);
679 $$= pred;
681 }
682 | hconditions AND hconditions
683 {
684 Predicate *pred;
685 pred = parsedData->insertPredicate((Predicate*) $1, OpAnd, (Predicate*) $3);
686 parsedData->setHavingCondition((Predicate*)pred);
687 $$= pred;
688 }
689 | '(' hconditions ')' { $$=$2; }
690 | NOT '(' hconditions ')'
691 {
692 Predicate *pred;
693 pred = parsedData->insertPredicate((Predicate*) $3, OpNot, NULL);
694 parsedData->setHavingCondition((Predicate*)pred);
695 $$= pred;
697 }
698 | not_opt hcondition
699 {
700 if( $1 == (char*) 1 )
701 {
702 Predicate *pred;
703 pred = parsedData->insertPredicate((Predicate*) $2, OpNot, NULL);
704 parsedData->setHavingCondition((Predicate*)pred);
705 $$= pred;
706 }
707 else
708 {
709 parsedData->setHavingCondition((Predicate*)$2);
710 $$=$2;
711 }
712 }
713 ;
714 hcondition: MIN '(' ident ')' OPERATOR value
715 {
716 ComparisionOp op = AllDataType::getComparisionOperator((char*)$5);
717 Predicate *pred;
718 void **ptr = parsedData->insertCondValueAndGetPtr((char*)$3, (char*)$6, false, AGG_MIN, true);
719 pred = parsedData->insertPredicate((char*) $3, op, ptr, AGG_MIN);
720 free( $1 ); free ($3); free ($5); free ($6);
721 $$=pred;
722 }
723 | MAX '(' ident ')' OPERATOR value
724 {
725 ComparisionOp op = AllDataType::getComparisionOperator((char*)$5);
726 Predicate *pred;
727 void **ptr = parsedData->insertCondValueAndGetPtr((char*)$3, (char*)$6, false, AGG_MAX, true);
728 pred = parsedData->insertPredicate((char*) $3, op, ptr, AGG_MAX);
729 free( $1 ); free ($3); free ($5); free ($6);
730 $$=pred;
731 }
732 | SUM '(' ident ')' OPERATOR value
733 {
734 ComparisionOp op = AllDataType::getComparisionOperator((char*)$5);
735 Predicate *pred;
736 void **ptr = parsedData->insertCondValueAndGetPtr((char*)$3, (char*)$6, false, AGG_SUM, true);
737 pred = parsedData->insertPredicate((char*) $3, op, ptr, AGG_SUM);
738 free( $1 ); free ($3); free ($5); free ($6);
739 $$=pred;
740 }
741 | AVG '(' ident ')' OPERATOR value
742 {
743 ComparisionOp op = AllDataType::getComparisionOperator((char*)$5);
744 Predicate *pred;
745 void **ptr = parsedData->insertCondValueAndGetPtr((char*)$3, (char*)$6, false, AGG_AVG, true);
746 pred = parsedData->insertPredicate((char*) $3, op, ptr, AGG_AVG);
747 free( $1 ); free ($3); free ($5); free ($6);
748 $$=pred;
749 }
750 | COUNT '(' ident ')' OPERATOR value
751 {
752 ComparisionOp op = AllDataType::getComparisionOperator((char*)$5);
753 Predicate *pred;
754 void **ptr = parsedData->insertCondValueAndGetPtr((char*)$3, (char*)$6, false, AGG_COUNT, true);
755 pred = parsedData->insertPredicate((char*) $3, op, ptr, AGG_COUNT);
756 free( $1 ); free ($3); free ($5); free ($6);
757 $$=pred;
758 }
759 ;
761 condition: ident OPERATOR value
762 {
763 ComparisionOp op = AllDataType::getComparisionOperator((char*)$2);
764 bool opLike = false;
765 if (op == OpLike) opLike = true;
766 Predicate *pred;
767 void **ptr = parsedData->insertCondValueAndGetPtr((char*)$1, (char*)$3, opLike);
768 pred = parsedData->insertPredicate((char*) $1, op, ptr);
769 free( $1 ); free($2); free( $3 );
770 $$=pred;
771 }
772 | ident OPERATOR ident
773 {
774 ComparisionOp op = AllDataType::getComparisionOperator((char*)$2);
775 Predicate *pred;
776 parsedData->insertCondValue((char*) $1);
777 parsedData->insertCondValue((char*) $3);
778 pred = parsedData->insertPredicate((char*) $1, op, (char*) $3);
779 free( $1 ); free($2); free( $3 );
780 $$=pred;
781 }
783 | ident not_opt BETWEEN value AND value
784 {
785 void **ptr1 = parsedData->insertCondValueAndGetPtr((char*)$1, (char*)$4);
786 void **ptr2 = parsedData->insertCondValueAndGetPtr((char*)$1, (char*)$6);
787 Predicate *finalPred;
788 // pred1 = parsedData->insertPredicate((char*) $1, OpGreaterThanEquals, ptr1);
789 // pred2 = parsedData->insertPredicate((char*) $1, OpLessThanEquals, ptr2);
790 finalPred = parsedData->insertBetPredicate((char*) $1,
791 OpGreaterThanEquals, ptr1, OpLessThanEquals, ptr2);
792 //OpLessThanEquals, ptr2, OpGreaterThanEquals, ptr1);
794 if( $2 == (char*) 1 )
795 finalPred = parsedData->insertPredicate(finalPred, OpNot, NULL);
796 free( $1 ); free( $4 ); free( $6 );
797 $$= finalPred;
798 }
799 | ident not_opt IN '(' invalue_list ')'
800 {
801 ListIterator valIter = parsedData->getInValueList().getIterator();
802 FieldValue *value1, *value2;
803 Predicate *pred1, *pred2, *finalPred;
804 void **ptr1, **ptr2;
805 if (valIter.hasElement()) {
806 value1 = (FieldValue*) valIter.nextElement();
807 ptr1 = parsedData->insertCondValueAndGetPtr((char*)$1, value1->parsedString);
808 pred1 = parsedData->insertPredicate((char*) $1, OpEquals, ptr1);
809 finalPred=pred1;
810 }
811 while (valIter.hasElement()) {
812 value2 = (FieldValue*) valIter.nextElement();
813 ptr2 = parsedData->insertCondValueAndGetPtr((char*)$1, value2->parsedString);
814 pred2 = parsedData->insertPredicate((char*) $1, OpEquals, ptr2);
815 finalPred = parsedData->insertPredicate(pred1, OpOr, pred2);
816 pred1= finalPred;
817 }
818 parsedData->resetInValueList();
819 if( $2 == (char*)1)
820 finalPred = parsedData->insertPredicate(finalPred, OpNot, NULL);
822 free( $1 );
823 $$= finalPred;
824 }
825 | ident IS NOT NULL_VALUE
826 {
827 Predicate *pred;
828 parsedData->insertCondValue((char*) $1);
829 pred = parsedData->insertNullPredicate((char*) $1, OpIsNull, false);
830 free( $1 ); free($2); free( $3 );
831 $$=pred;
832 }
833 | ident IS NULL_VALUE
834 {
835 Predicate *pred;
836 parsedData->insertCondValue((char*) $1);
837 pred = parsedData->insertNullPredicate((char*) $1, OpIsNull, true);
838 free( $1 ); free($2); free( $3 );
839 $$=pred;
840 }
841 | function_opt OPERATOR function_opt
842 {
843 ComparisionOp op = AllDataType::getComparisionOperator((char*)$2);
844 Predicate *pred;
845 pred = parsedData->insertPredicate(((Expression*)$1), op, ((Expression*)$3));
846 $$=pred;
848 }
849 | function_opt OPERATOR ident
850 {
852 ComparisionOp op = AllDataType::getComparisionOperator((char*)$2);
853 parsedData->insertCondValue((char*) $3);
854 Predicate *pred;
855 pred = parsedData->insertPredicate(((Expression*)$1), op, (char*) $3);
856 $$=pred;
858 }
859 | function_opt OPERATOR value
860 {
861 ComparisionOp op = AllDataType::getComparisionOperator((char*)$2);
862 void **ptr = parsedData->insertCondValueAndGetPtr((char*)"dummy", (char*)$3, false, AGG_UNKNOWN, false, true);
863 Predicate *pred;
864 pred = parsedData->insertPredicate(((Expression*)$1), op, ptr);
865 $$=pred;
866 }
867 ;
868 not_opt: NOT
869 { $$=(char*) 1;
870 }
871 |
872 { $$=(char*) 0; }
873 ;
874 table: ident
875 {
876 parsedData->insertTableName((char*)$1);
877 free( $1 );
878 }
879 | ident AS ident
880 {
881 parsedData->insertTableName((char*)$1, (char*)$3);
882 free( $1 ); free($3);
883 }
884 | ident ident
885 {
886 parsedData->insertTableName((char*)$1, (char*)$2);
887 free( $1 ); free($2);
888 }
889 ;
890 field: ident
891 {
892 parsedData->insertField((char*)$1);
893 free( $1 );
895 }
896 | MIN '(' ident ')'
897 {
898 parsedData->insertField((char*)$3, AGG_MIN);
899 free( $1 );
900 }
901 | MAX '(' ident ')'
902 {
903 parsedData->insertField((char*)$3, AGG_MAX);
904 free( $1 );
905 }
906 | SUM '(' ident ')'
907 {
908 parsedData->insertField((char*)$3, AGG_SUM);
909 free( $1 );
910 }
911 | AVG '(' ident ')'
912 {
913 parsedData->insertField((char*)$3, AGG_AVG);
914 free( $1 );
915 }
916 | COUNT '(' ident ')'
917 {
918 parsedData->insertField((char*)$3, AGG_COUNT);
919 free( $1 );
920 }
921 | COUNT '(' '*' ')'
922 {
923 parsedData->insertField("*", AGG_COUNT);
924 free( $1 );
925 }
926 | '*'
927 {
928 parsedData->insertField("*");
929 }
930 |ident'*'
931 {
932 parsedData->insertField("*");
933 }
934 ;
935 ident: FIELD { $$ = $1; }
936 | '`'FIELD'`' { $$ = $2; }
937 ;
938 value: STRING { $$ = $1; }
939 | num_value
940 | BINARY_STRING { $$ = $1; }
941 | doub_value
942 | PARAMETER { $$ = $1; }
943 | NULL_VALUE { $$ = (char*) 0; }
944 | NOW '(' ')'
945 {
946 char *str=(char*)malloc(20);
947 time_t rawtime;
948 struct tm * timeinfo;
949 time ( &rawtime );
950 timeinfo = localtime ( &rawtime );
951 sprintf(str,"%d-%d-%d %d:%d:%d",timeinfo->tm_year+1900,timeinfo->tm_mon+1,timeinfo->tm_mday,timeinfo->tm_hour,timeinfo->tm_min,timeinfo->tm_sec);
952 $$=str;
955 }
956 ;
957 num_value: NUMBER_STRING { $$ = $1; }
958 | '-' NUMBER_STRING %prec UMINUS
959 {
960 char *n;
961 n=(char*)malloc(30);
962 strcpy(n,"-");
963 strcat(n,(char*)$2);
964 $$=n;
965 free($2);
966 }
967 | '+' NUMBER_STRING %prec UMINUS{ $$ = $2; }
968 ;
969 doub_value : DOUBLE { $$ = $1; }
970 | '-' DOUBLE %prec UMINUS
971 {
972 char *d;
973 d=(char*)malloc(30);
974 strcpy(d,"-");
975 strcat(d,(char*)$2);
976 $$=d;
977 free($2);
978 }
979 | '+' DOUBLE %prec UMINUS{ $$ = $2; }
980 ;
981 cache_statement: CACHE TABLE ident cache_opt semicolon_opt
982 {
983 if (!Conf::config.useCache())
984 {
985 printf("CACHE_TABLE is set to FALSE in csql.conf file.\n");
986 free($3);
987 YYABORT;
988 }
989 parsedData->setStmtType(CacheTableStatement);
990 parsedData->setTableName($3);
991 }
992 | UNCACHE TABLE ident semicolon_opt
993 {
994 parsedData->setStmtType(CacheTableStatement);
995 parsedData->setUnCache(true);
996 parsedData->setTableName($3);
997 }
998 ;
999 cache_opt: hcond_cache vcond_cache pk_cache direct_opt dsn_opt no_schema
1000 ;
1001 hcond_cache:
1002 | CONDITION value
1003 {
1004 parsedData->setHCondFld(true);
1005 parsedData->setHCondition((char*)$2);
1006 }
1007 ;
1008 vcond_cache:
1009 | FIELDLIST value
1010 {
1011 parsedData->setVCondFld(true);
1012 parsedData->setVCondition((char*)$2);
1013 free($2);
1014 }
1015 ;
1016 pk_cache:
1017 | PK ident
1018 {
1019 parsedData->setPkFld(true);
1020 parsedData->setIndexName((char*)$2);
1021 free($2);
1022 }
1023 ;
1024 direct_opt:
1025 | DIRECT
1026 {
1027 parsedData->setDirect(true);
1028 }
1029 ;
1030 dsn_opt:
1031 | DSN value
1032 {
1033 parsedData->setDSN(true);
1034 parsedData->setPKTableName((char*)$2);
1035 free($2);
1036 }
1037 no_schema:
1038 | NOSCHEMA
1039 {
1040 parsedData->setNoSchema(true);
1041 }
1042 ;
1043 ddl_statement: CREATE TABLE ident '(' create_defn_list_con ')' semicolon_opt
1044 {
1045 parsedData->setStmtType(CreateTableStatement);
1046 parsedData->setTableName($3);
1047 free($3);
1048 }
1049 | CREATE INDEX ident ON ident '(' field_list ')' opt_constr_type opt_ind_type opt_bucket semicolon_opt
1050 {
1051 parsedData->setStmtType(CreateIndexStatement);
1052 parsedData->setIndexName($3);
1053 parsedData->setTableName($5);
1054 free($3);
1055 free($5);
1056 }
1057 | DROP TABLE ident
1058 {
1059 parsedData->setStmtType(DropTableStatement);
1060 parsedData->setTableName($3);
1061 free($3);
1062 }
1063 | DROP INDEX ident
1064 {
1065 parsedData->setStmtType(DropIndexStatement);
1066 parsedData->setIndexName($3);
1067 free($3);
1068 }
1069 | TRUNCATE TABLE ident semicolon_opt
1070 {
1071 parsedData->setStmtType(TruncateStatement);
1072 parsedData->setTableName($3);
1073 free($3);
1074 }
1075 ;
1076 opt_ind_type:
1077 | HASH opt_constr_type
1078 {
1079 parsedData->setIndexType(hashIndex);
1080 }
1081 | TREE opt_constr_type
1082 {
1083 parsedData->setIndexType(treeIndex);
1084 }
1085 | TRIE opt_constr_type
1086 {
1087 parsedData->setIndexType(trieIndex);
1088 }
1089 |
1090 {
1091 parsedData->setIndexType(hashIndex);
1092 }
1093 ;
1094 opt_constr_type:
1095 | UNIQUE
1096 {
1097 parsedData->setUnique(true);
1098 }
1099 | PRIMARY
1100 {
1101 parsedData->setUnique(true);
1102 parsedData->setPrimary(true);
1103 }
1104 |
1105 {
1106 parsedData->setUnique(false);
1107 parsedData->setPrimary(false);
1108 }
1109 ;
1110 opt_bucket:
1111 | SIZE NUMBER_STRING
1112 {
1113 parsedData->setBucketSize(atoi($2));
1114 free($2);
1115 }
1116 ;
1117 create_defn_list_con:create_defn_list
1118 |create_defn_list ',' constraint_defn
1119 ;
1120 create_defn_list: create_defn_list create_defn_list_L
1121 | create_defn
1122 ;
1124 create_defn_list_L: ',' create_defn
1125 ;
1127 create_defn: field_defn
1128 {
1129 parsedData->insertFldDef();
1130 }
1131 ;
1133 field_defn: field_name field_type size_opt null_expr_opt default_expr_opt auto_increment_key
1134 ;
1136 field_name: ident
1137 {
1138 parsedData->setFldName($1);
1139 free($1);
1140 }
1141 size_opt:
1142 | '(' NUMBER_STRING ')'
1143 {
1144 DbRetVal rv = parsedData->setFldLength(atoi($2));
1145 if (rv != OK) {
1146 yyerror("Binary field length < 256");
1147 free($2);
1148 YYABORT;
1149 }
1150 free($2);
1151 }
1152 ;
1154 default_expr_opt:
1155 | DEFAULT value
1156 {
1157 DbRetVal rv = parsedData->setDefaultValue($2);
1158 if(rv != OK){
1159 yyerror("Invalid Default value.");
1160 free($2);
1161 YYABORT;
1162 }
1163 free($2);
1164 }
1165 ;
1167 null_expr_opt:
1168 | NOT NULL_VALUE
1169 {
1170 parsedData->setFldNotNull(true);
1171 }
1172 ;
1173 constraint_defn : primary_key_constraint
1174 | foreign_key_constraint
1175 | primary_key_constraint ',' foreign_key_constraint
1176 ;
1177 foreign_key_constraint: foreign_key_constraint foreign_key_constraint_L
1178 | foreign_key_create
1179 ;
1180 foreign_key_constraint_L: ',' foreign_key_create
1181 ;
1182 foreign_key_create: FOREIGN KEY '(' fkField_list ')' REFERENCES ident'(' pkField_list ')'
1183 {
1184 parsedData->setForeign(true);
1185 parsedData->setPKTableName((char*)$7);
1186 parsedData->insertForeignKeyList();
1187 }
1188 ;
1189 fkField_list: fkField_list fkField_list_L
1190 | fkField
1191 ;
1192 fkField_list_L: ',' fkField
1193 ;
1194 fkField: ident
1195 {
1196 parsedData->insertFKField((char*)$1);
1197 free($1);
1198 }
1199 ;
1200 pkField_list: pkField_list pkField_list_L
1201 | pkField
1202 ;
1203 pkField_list_L: ',' pkField
1204 ;
1205 pkField: ident
1206 {
1207 parsedData->insertPKField((char*)$1);
1208 free($1);
1209 }
1210 ;
1212 primary_key_constraint: PRIMARY KEY '(' field_list ')' opt_bucket
1213 {
1214 parsedData->setPrimary(true);
1215 }
1216 ;
1217 auto_increment_key:
1218 | AUTO_INCREMENT
1219 {
1220 DataType type = parsedData->getFldType();
1221 if(type > 4)
1222 {
1223 yyerror("AUTO_INCREMENT KEY can't be created other than INTEGER field ");
1224 free($1);
1225 YYABORT;
1226 }
1227 DbRetVal ret = parsedData->setAutoIncreament(true);
1228 if(ret != OK){
1229 yyerror("A table should have ony one AUTO_INCREMENT KEY ");
1230 free($1);
1231 YYABORT;
1232 }
1233 parsedData->setFldNotNull(true);
1234 parsedData->setAutoFldName(parsedData->getFldName());
1235 parsedData->setPrimary(true);
1236 }
1237 ;
1239 field_type: INT_TYPE
1240 {
1241 parsedData->setFldType(typeInt);
1242 }
1243 | LONG_TYPE
1244 {
1245 parsedData->setFldType(typeLong);
1246 }
1247 | SHORT_TYPE
1248 {
1249 parsedData->setFldType(typeShort);
1250 }
1251 | BIGINT_TYPE
1252 {
1253 parsedData->setFldType(typeLongLong);
1254 }
1255 | TINYINT_TYPE
1256 {
1257 parsedData->setFldType(typeByteInt);
1258 }
1259 | FLOAT_TYPE
1260 {
1261 parsedData->setFldType(typeFloat);
1262 }
1263 | DOUBLE_TYPE
1264 {
1265 parsedData->setFldType(typeDouble);
1266 }
1267 ;
1268 | DATE_TYPE
1269 {
1270 parsedData->setFldType(typeDate);
1271 }
1272 ;
1273 | TIME_TYPE
1274 {
1275 parsedData->setFldType(typeTime);
1276 }
1277 ;
1278 | TIMESTAMP_TYPE
1279 {
1280 parsedData->setFldType(typeTimeStamp);
1281 }
1282 ;
1283 | CHAR_TYPE
1284 {
1285 parsedData->setFldType(typeString);
1286 parsedData->setFldLength(2);
1287 }
1288 ;
1289 | VARCHAR_TYPE
1290 {
1291 parsedData->setFldType(typeVarchar);
1292 parsedData->setFldLength(2);
1293 }
1294 ;
1295 | BINARY_TYPE
1296 {
1297 parsedData->setFldType(typeBinary);
1298 parsedData->setFldLength(1);
1299 }
1300 ;
1301 %%
1303 extern int lexEof;
1304 void yyerror(const char* Msg) {
1305 if( lexEof == 0 )
1306 fprintf(stderr, "[Parser: %s] %s\n", Msg, yytext);
1308 return;
1309 }