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drh348784e2000-05-29 20:41:49 +00001/*
drhb19a2bc2001-09-16 00:13:26 +00002** 2001 September 15
drh348784e2000-05-29 20:41:49 +00003**
drhb19a2bc2001-09-16 00:13:26 +00004** The author disclaims copyright to this source code. In place of
5** a legal notice, here is a blessing:
drh348784e2000-05-29 20:41:49 +00006**
drhb19a2bc2001-09-16 00:13:26 +00007** May you do good and not evil.
8** May you find forgiveness for yourself and forgive others.
9** May you share freely, never taking more than you give.
drh348784e2000-05-29 20:41:49 +000010**
11*************************************************************************
12** This file contains SQLite's grammar for SQL. Process this file
13** using the lemon parser generator to generate C code that runs
14** the parser. Lemon will also generate a header file containing
15** numeric codes for all of the tokens.
16**
drhc99130f2005-09-11 11:56:27 +000017** @(#) $Id: parse.y,v 1.179 2005/09/11 11:56:28 drh Exp $
drh348784e2000-05-29 20:41:49 +000018*/
drh487e2622005-06-25 18:42:14 +000019
20// All token codes are small integers with #defines that begin with "TK_"
drh348784e2000-05-29 20:41:49 +000021%token_prefix TK_
drh487e2622005-06-25 18:42:14 +000022
23// The type of the data attached to each token is Token. This is also the
24// default type for non-terminals.
25//
drh348784e2000-05-29 20:41:49 +000026%token_type {Token}
drhf57b14a2001-09-14 18:54:08 +000027%default_type {Token}
drh487e2622005-06-25 18:42:14 +000028
29// The generated parser function takes a 4th argument as follows:
drh348784e2000-05-29 20:41:49 +000030%extra_argument {Parse *pParse}
drh487e2622005-06-25 18:42:14 +000031
32// This code runs whenever there is a syntax error
33//
drh348784e2000-05-29 20:41:49 +000034%syntax_error {
drhb86ccfb2003-01-28 23:13:10 +000035 if( pParse->zErrMsg==0 ){
36 if( TOKEN.z[0] ){
danielk19774adee202004-05-08 08:23:19 +000037 sqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &TOKEN);
drhb86ccfb2003-01-28 23:13:10 +000038 }else{
danielk19774adee202004-05-08 08:23:19 +000039 sqlite3ErrorMsg(pParse, "incomplete SQL statement");
drhb86ccfb2003-01-28 23:13:10 +000040 }
41 }
drh348784e2000-05-29 20:41:49 +000042}
drh487e2622005-06-25 18:42:14 +000043
44// The name of the generated procedure that implements the parser
45// is as follows:
danielk19774adee202004-05-08 08:23:19 +000046%name sqlite3Parser
drh487e2622005-06-25 18:42:14 +000047
48// The following text is included near the beginning of the C source
49// code file that implements the parser.
50//
drh348784e2000-05-29 20:41:49 +000051%include {
52#include "sqliteInt.h"
53#include "parse.h"
drh9bbca4c2001-11-06 04:00:18 +000054
55/*
drhad3cab52002-05-24 02:04:32 +000056** An instance of this structure holds information about the
57** LIMIT clause of a SELECT statement.
drh9bbca4c2001-11-06 04:00:18 +000058*/
drhad3cab52002-05-24 02:04:32 +000059struct LimitVal {
danielk1977a2dc3b12005-02-05 12:48:48 +000060 Expr *pLimit; /* The LIMIT expression. NULL if there is no limit */
61 Expr *pOffset; /* The OFFSET expression. NULL if there is none */
drhad3cab52002-05-24 02:04:32 +000062};
danielk1977c3f9bad2002-05-15 08:30:12 +000063
64/*
drh2e3a1f12004-10-06 14:39:28 +000065** An instance of this structure is used to store the LIKE,
66** GLOB, NOT LIKE, and NOT GLOB operators.
67*/
68struct LikeOp {
drhb71090f2005-05-23 17:26:51 +000069 Token operator; /* "like" or "glob" or "regexp" */
70 int not; /* True if the NOT keyword is present */
drh2e3a1f12004-10-06 14:39:28 +000071};
72
73/*
drhad3cab52002-05-24 02:04:32 +000074** An instance of the following structure describes the event of a
75** TRIGGER. "a" is the event type, one of TK_UPDATE, TK_INSERT,
76** TK_DELETE, or TK_INSTEAD. If the event is of the form
77**
78** UPDATE ON (a,b,c)
79**
80** Then the "b" IdList records the list "a,b,c".
danielk1977c3f9bad2002-05-15 08:30:12 +000081*/
drhad3cab52002-05-24 02:04:32 +000082struct TrigEvent { int a; IdList * b; };
drhcaec2f12003-01-07 02:47:47 +000083
drh25d65432004-07-22 15:02:25 +000084/*
85** An instance of this structure holds the ATTACH key and the key type.
86*/
87struct AttachKey { int type; Token key; };
88
drhcaec2f12003-01-07 02:47:47 +000089} // end %include
drh348784e2000-05-29 20:41:49 +000090
drh348784e2000-05-29 20:41:49 +000091// These are extra tokens used by the lexer but never seen by the
92// parser. We put them in a rule so that the parser generator will
drh6206d502000-06-19 19:09:08 +000093// add them to the parse.h output file.
drh348784e2000-05-29 20:41:49 +000094//
drhc4a3c772001-04-04 11:48:57 +000095%nonassoc END_OF_FILE ILLEGAL SPACE UNCLOSED_STRING COMMENT FUNCTION
drh13449892005-09-07 21:22:45 +000096 COLUMN AGG_FUNCTION AGG_COLUMN CONST_FUNC.
drhc4a3c772001-04-04 11:48:57 +000097
drh826fb5a2004-02-14 23:59:57 +000098// Input is a single SQL command
drhc4a3c772001-04-04 11:48:57 +000099input ::= cmdlist.
drh094b2bb2002-03-13 18:54:07 +0000100cmdlist ::= cmdlist ecmd.
drh826fb5a2004-02-14 23:59:57 +0000101cmdlist ::= ecmd.
drh80242052004-06-09 00:48:12 +0000102cmdx ::= cmd. { sqlite3FinishCoding(pParse); }
drhb7f91642004-10-31 02:22:47 +0000103ecmd ::= SEMI.
104ecmd ::= explain cmdx SEMI.
danielk19774adee202004-05-08 08:23:19 +0000105explain ::= . { sqlite3BeginParse(pParse, 0); }
drhb7f91642004-10-31 02:22:47 +0000106%ifndef SQLITE_OMIT_EXPLAIN
drhecc92422005-09-10 16:46:12 +0000107explain ::= EXPLAIN. { sqlite3BeginParse(pParse, 1); }
108explain ::= EXPLAIN QUERY PLAN. { sqlite3BeginParse(pParse, 2); }
drhb7f91642004-10-31 02:22:47 +0000109%endif
drh348784e2000-05-29 20:41:49 +0000110
drh382c0242001-10-06 16:33:02 +0000111///////////////////// Begin and end transactions. ////////////////////////////
drhc4a3c772001-04-04 11:48:57 +0000112//
drhfa86c412002-02-02 15:01:15 +0000113
drh684917c2004-10-05 02:41:42 +0000114cmd ::= BEGIN transtype(Y) trans_opt. {sqlite3BeginTransaction(pParse, Y);}
drhc4a3c772001-04-04 11:48:57 +0000115trans_opt ::= .
116trans_opt ::= TRANSACTION.
drh5ad1a6c2002-07-01 12:27:09 +0000117trans_opt ::= TRANSACTION nm.
drh684917c2004-10-05 02:41:42 +0000118%type transtype {int}
119transtype(A) ::= . {A = TK_DEFERRED;}
120transtype(A) ::= DEFERRED(X). {A = @X;}
121transtype(A) ::= IMMEDIATE(X). {A = @X;}
122transtype(A) ::= EXCLUSIVE(X). {A = @X;}
danielk19774adee202004-05-08 08:23:19 +0000123cmd ::= COMMIT trans_opt. {sqlite3CommitTransaction(pParse);}
124cmd ::= END trans_opt. {sqlite3CommitTransaction(pParse);}
125cmd ::= ROLLBACK trans_opt. {sqlite3RollbackTransaction(pParse);}
drhc4a3c772001-04-04 11:48:57 +0000126
drh382c0242001-10-06 16:33:02 +0000127///////////////////// The CREATE TABLE statement ////////////////////////////
drh348784e2000-05-29 20:41:49 +0000128//
129cmd ::= create_table create_table_args.
danielk1977cbb18d22004-05-28 11:37:27 +0000130create_table ::= CREATE(X) temp(T) TABLE nm(Y) dbnm(Z). {
131 sqlite3StartTable(pParse,&X,&Y,&Z,T,0);
drh969fa7c2002-02-18 18:30:32 +0000132}
drhf57b3392001-10-08 13:22:32 +0000133%type temp {int}
danielk197753c0f742005-03-29 03:10:59 +0000134%ifndef SQLITE_OMIT_TEMPDB
drhd24cc422003-03-27 12:51:24 +0000135temp(A) ::= TEMP. {A = 1;}
danielk197753c0f742005-03-29 03:10:59 +0000136%endif
drhd24cc422003-03-27 12:51:24 +0000137temp(A) ::= . {A = 0;}
danielk197719a8e7e2005-03-17 05:03:38 +0000138create_table_args ::= LP columnlist conslist_opt(X) RP(Y). {
139 sqlite3EndTable(pParse,&X,&Y,0);
drh969fa7c2002-02-18 18:30:32 +0000140}
141create_table_args ::= AS select(S). {
danielk197719a8e7e2005-03-17 05:03:38 +0000142 sqlite3EndTable(pParse,0,0,S);
danielk19774adee202004-05-08 08:23:19 +0000143 sqlite3SelectDelete(S);
drh969fa7c2002-02-18 18:30:32 +0000144}
drh348784e2000-05-29 20:41:49 +0000145columnlist ::= columnlist COMMA column.
146columnlist ::= column.
147
drh487e2622005-06-25 18:42:14 +0000148// A "column" is a complete description of a single column in a
149// CREATE TABLE statement. This includes the column name, its
150// datatype, and other keywords such as PRIMARY KEY, UNIQUE, REFERENCES,
151// NOT NULL and so forth.
drh348784e2000-05-29 20:41:49 +0000152//
danielk197719a8e7e2005-03-17 05:03:38 +0000153column(A) ::= columnid(X) type carglist. {
154 A.z = X.z;
155 A.n = (pParse->sLastToken.z-X.z) + pParse->sLastToken.n;
156}
157columnid(A) ::= nm(X). {
158 sqlite3AddColumn(pParse,&X);
159 A = X;
160}
161
drhc4a3c772001-04-04 11:48:57 +0000162
163// An IDENTIFIER can be a generic identifier, or one of several
164// keywords. Any non-standard keyword can also be an identifier.
drhc4a3c772001-04-04 11:48:57 +0000165//
drh982cef72000-05-30 16:27:03 +0000166%type id {Token}
drhf18543c2002-03-30 15:26:50 +0000167id(A) ::= ID(X). {A = X;}
drh0bd1f4e2002-06-06 18:54:39 +0000168
drh34e33bb2002-06-06 19:04:16 +0000169// The following directive causes tokens ABORT, AFTER, ASC, etc. to
170// fallback to ID if they will not parse as their original value.
171// This obviates the need for the "id" nonterminal.
172//
drh319e4e72003-09-30 01:54:13 +0000173%fallback ID
drh9f18e8a2005-07-08 12:13:04 +0000174 ABORT AFTER ANALYZE ASC ATTACH BEFORE BEGIN CASCADE CAST CONFLICT
drh684917c2004-10-05 02:41:42 +0000175 DATABASE DEFERRED DESC DETACH EACH END EXCLUSIVE EXPLAIN FAIL FOR
drhecc92422005-09-10 16:46:12 +0000176 IGNORE IMMEDIATE INITIALLY INSTEAD LIKE_KW MATCH PLAN QUERY KEY
drh5ad1a6c2002-07-01 12:27:09 +0000177 OF OFFSET PRAGMA RAISE REPLACE RESTRICT ROW STATEMENT
drhb7f91642004-10-31 02:22:47 +0000178 TEMP TRIGGER VACUUM VIEW
179%ifdef SQLITE_OMIT_COMPOUND_SELECT
180 EXCEPT INTERSECT UNION
181%endif
drhb71090f2005-05-23 17:26:51 +0000182 REINDEX RENAME CTIME_KW ALTER
drhb7f91642004-10-31 02:22:47 +0000183 .
drhc4a3c772001-04-04 11:48:57 +0000184
drh2d3917d2004-02-22 16:27:00 +0000185// Define operator precedence early so that this is the first occurance
186// of the operator tokens in the grammer. Keeping the operators together
187// causes them to be assigned integer values that are close together,
188// which keeps parser tables smaller.
189//
drhf2bc0132004-10-04 13:19:23 +0000190// The token values assigned to these symbols is determined by the order
191// in which lemon first sees them. It must be the case that ISNULL/NOTNULL,
192// NE/EQ, GT/LE, and GE/LT are separated by only a single value. See
193// the sqlite3ExprIfFalse() routine for additional information on this
194// constraint.
195//
drh2d3917d2004-02-22 16:27:00 +0000196%left OR.
197%left AND.
198%right NOT.
drhb71090f2005-05-23 17:26:51 +0000199%left IS LIKE_KW BETWEEN IN ISNULL NOTNULL NE EQ.
drh9a432672004-10-04 13:38:09 +0000200%left GT LE LT GE.
danielk19777c6303c2004-11-17 16:41:29 +0000201%right ESCAPE.
drh2d3917d2004-02-22 16:27:00 +0000202%left BITAND BITOR LSHIFT RSHIFT.
203%left PLUS MINUS.
204%left STAR SLASH REM.
205%left CONCAT.
206%right UMINUS UPLUS BITNOT.
207
drhc4a3c772001-04-04 11:48:57 +0000208// And "ids" is an identifer-or-string.
209//
210%type ids {Token}
drh5ad1a6c2002-07-01 12:27:09 +0000211ids(A) ::= ID(X). {A = X;}
drhc4a3c772001-04-04 11:48:57 +0000212ids(A) ::= STRING(X). {A = X;}
213
drh5ad1a6c2002-07-01 12:27:09 +0000214// The name of a column or table can be any of the following:
215//
216%type nm {Token}
217nm(A) ::= ID(X). {A = X;}
218nm(A) ::= STRING(X). {A = X;}
219nm(A) ::= JOIN_KW(X). {A = X;}
220
drh487e2622005-06-25 18:42:14 +0000221// A typetoken is really one or more tokens that form a type name such
222// as can be found after the column name in a CREATE TABLE statement.
223// Multiple tokens are concatenated to form the value of the typetoken.
224//
225%type typetoken {Token}
drh382c0242001-10-06 16:33:02 +0000226type ::= .
drh487e2622005-06-25 18:42:14 +0000227type ::= typetoken(X). {sqlite3AddColumnType(pParse,&X);}
228typetoken(A) ::= typename(X). {A = X;}
229typetoken(A) ::= typename(X) LP signed RP(Y). {
230 A.z = X.z;
231 A.n = &Y.z[Y.n] - X.z;
232}
233typetoken(A) ::= typename(X) LP signed COMMA signed RP(Y). {
234 A.z = X.z;
235 A.n = &Y.z[Y.n] - X.z;
236}
drh382c0242001-10-06 16:33:02 +0000237%type typename {Token}
drhe2ea40d2004-05-20 12:41:19 +0000238typename(A) ::= ids(X). {A = X;}
drh596bd232004-09-30 14:22:47 +0000239typename(A) ::= typename(X) ids(Y). {A.z=X.z; A.n=Y.n+(Y.z-X.z);}
drhef0cae52003-07-16 02:19:37 +0000240%type signed {int}
drh74ad7fe2004-10-07 03:06:28 +0000241signed(A) ::= plus_num(X). { A = atoi(X.z); }
242signed(A) ::= minus_num(X). { A = -atoi(X.z); }
drh487e2622005-06-25 18:42:14 +0000243
244// "carglist" is a list of additional constraints that come after the
245// column name and column type in a CREATE TABLE statement.
246//
drh348784e2000-05-29 20:41:49 +0000247carglist ::= carglist carg.
248carglist ::= .
drh5ad1a6c2002-07-01 12:27:09 +0000249carg ::= CONSTRAINT nm ccons.
drh348784e2000-05-29 20:41:49 +0000250carg ::= ccons.
danielk19777977a172004-11-09 12:44:37 +0000251carg ::= DEFAULT term(X). {sqlite3AddDefaultValue(pParse,X);}
drheb55bd22005-06-30 17:04:21 +0000252carg ::= DEFAULT LP expr(X) RP. {sqlite3AddDefaultValue(pParse,X);}
danielk19777977a172004-11-09 12:44:37 +0000253carg ::= DEFAULT PLUS term(X). {sqlite3AddDefaultValue(pParse,X);}
254carg ::= DEFAULT MINUS term(X). {
255 Expr *p = sqlite3Expr(TK_UMINUS, X, 0, 0);
256 sqlite3AddDefaultValue(pParse,p);
257}
258carg ::= DEFAULT id(X). {
259 Expr *p = sqlite3Expr(TK_STRING, 0, 0, &X);
260 sqlite3AddDefaultValue(pParse,p);
261}
drh348784e2000-05-29 20:41:49 +0000262
drh382c0242001-10-06 16:33:02 +0000263// In addition to the type name, we also care about the primary key and
264// UNIQUE constraints.
drh348784e2000-05-29 20:41:49 +0000265//
drh0d316a42002-08-11 20:10:47 +0000266ccons ::= NULL onconf.
danielk19774adee202004-05-08 08:23:19 +0000267ccons ::= NOT NULL onconf(R). {sqlite3AddNotNull(pParse, R);}
drh205f48e2004-11-05 00:43:11 +0000268ccons ::= PRIMARY KEY sortorder onconf(R) autoinc(I).
269 {sqlite3AddPrimaryKey(pParse,0,R,I);}
drh74ad7fe2004-10-07 03:06:28 +0000270ccons ::= UNIQUE onconf(R). {sqlite3CreateIndex(pParse,0,0,0,0,R,0,0);}
danielk197719a8e7e2005-03-17 05:03:38 +0000271ccons ::= CHECK LP expr(X) RP onconf. {sqlite3ExprDelete(X);}
drhc2eef3b2002-08-31 18:53:06 +0000272ccons ::= REFERENCES nm(T) idxlist_opt(TA) refargs(R).
danielk19774adee202004-05-08 08:23:19 +0000273 {sqlite3CreateForeignKey(pParse,0,&T,TA,R);}
274ccons ::= defer_subclause(D). {sqlite3DeferForeignKey(pParse,D);}
drhd3d39e92004-05-20 22:16:29 +0000275ccons ::= COLLATE id(C). {sqlite3AddCollateType(pParse, C.z, C.n);}
drh04738cb2002-06-02 18:19:00 +0000276
drh205f48e2004-11-05 00:43:11 +0000277// The optional AUTOINCREMENT keyword
278%type autoinc {int}
drh2958a4e2004-11-12 03:56:15 +0000279autoinc(X) ::= . {X = 0;}
280autoinc(X) ::= AUTOINCR. {X = 1;}
drh205f48e2004-11-05 00:43:11 +0000281
drhc2eef3b2002-08-31 18:53:06 +0000282// The next group of rules parses the arguments to a REFERENCES clause
283// that determine if the referential integrity checking is deferred or
284// or immediate and which determine what action to take if a ref-integ
285// check fails.
drh04738cb2002-06-02 18:19:00 +0000286//
drhc2eef3b2002-08-31 18:53:06 +0000287%type refargs {int}
288refargs(A) ::= . { A = OE_Restrict * 0x010101; }
289refargs(A) ::= refargs(X) refarg(Y). { A = (X & Y.mask) | Y.value; }
290%type refarg {struct {int value; int mask;}}
291refarg(A) ::= MATCH nm. { A.value = 0; A.mask = 0x000000; }
292refarg(A) ::= ON DELETE refact(X). { A.value = X; A.mask = 0x0000ff; }
293refarg(A) ::= ON UPDATE refact(X). { A.value = X<<8; A.mask = 0x00ff00; }
294refarg(A) ::= ON INSERT refact(X). { A.value = X<<16; A.mask = 0xff0000; }
295%type refact {int}
296refact(A) ::= SET NULL. { A = OE_SetNull; }
297refact(A) ::= SET DEFAULT. { A = OE_SetDflt; }
298refact(A) ::= CASCADE. { A = OE_Cascade; }
299refact(A) ::= RESTRICT. { A = OE_Restrict; }
300%type defer_subclause {int}
301defer_subclause(A) ::= NOT DEFERRABLE init_deferred_pred_opt(X). {A = X;}
302defer_subclause(A) ::= DEFERRABLE init_deferred_pred_opt(X). {A = X;}
303%type init_deferred_pred_opt {int}
304init_deferred_pred_opt(A) ::= . {A = 0;}
305init_deferred_pred_opt(A) ::= INITIALLY DEFERRED. {A = 1;}
306init_deferred_pred_opt(A) ::= INITIALLY IMMEDIATE. {A = 0;}
drh348784e2000-05-29 20:41:49 +0000307
308// For the time being, the only constraint we care about is the primary
drh382c0242001-10-06 16:33:02 +0000309// key and UNIQUE. Both create indices.
drh348784e2000-05-29 20:41:49 +0000310//
danielk197719a8e7e2005-03-17 05:03:38 +0000311conslist_opt(A) ::= . {A.n = 0; A.z = 0;}
312conslist_opt(A) ::= COMMA(X) conslist. {A = X;}
drh348784e2000-05-29 20:41:49 +0000313conslist ::= conslist COMMA tcons.
drha2e1bb52001-01-04 14:20:18 +0000314conslist ::= conslist tcons.
drh348784e2000-05-29 20:41:49 +0000315conslist ::= tcons.
drh5ad1a6c2002-07-01 12:27:09 +0000316tcons ::= CONSTRAINT nm.
drhf3388142004-11-13 03:48:06 +0000317tcons ::= PRIMARY KEY LP idxlist(X) autoinc(I) RP onconf(R).
drh205f48e2004-11-05 00:43:11 +0000318 {sqlite3AddPrimaryKey(pParse,X,R,I);}
drh9cfcf5d2002-01-29 18:41:24 +0000319tcons ::= UNIQUE LP idxlist(X) RP onconf(R).
danielk1977cbb18d22004-05-28 11:37:27 +0000320 {sqlite3CreateIndex(pParse,0,0,0,X,R,0,0);}
drh9cfcf5d2002-01-29 18:41:24 +0000321tcons ::= CHECK expr onconf.
drhc2eef3b2002-08-31 18:53:06 +0000322tcons ::= FOREIGN KEY LP idxlist(FA) RP
323 REFERENCES nm(T) idxlist_opt(TA) refargs(R) defer_subclause_opt(D). {
danielk19774adee202004-05-08 08:23:19 +0000324 sqlite3CreateForeignKey(pParse, FA, &T, TA, R);
325 sqlite3DeferForeignKey(pParse, D);
drhc2eef3b2002-08-31 18:53:06 +0000326}
327%type defer_subclause_opt {int}
328defer_subclause_opt(A) ::= . {A = 0;}
329defer_subclause_opt(A) ::= defer_subclause(X). {A = X;}
drh9cfcf5d2002-01-29 18:41:24 +0000330
331// The following is a non-standard extension that allows us to declare the
332// default behavior when there is a constraint conflict.
333//
334%type onconf {int}
drh1c928532002-01-31 15:54:21 +0000335%type orconf {int}
336%type resolvetype {int}
drh74ad7fe2004-10-07 03:06:28 +0000337onconf(A) ::= . {A = OE_Default;}
338onconf(A) ::= ON CONFLICT resolvetype(X). {A = X;}
339orconf(A) ::= . {A = OE_Default;}
340orconf(A) ::= OR resolvetype(X). {A = X;}
341resolvetype(A) ::= raisetype(X). {A = X;}
342resolvetype(A) ::= IGNORE. {A = OE_Ignore;}
343resolvetype(A) ::= REPLACE. {A = OE_Replace;}
drh348784e2000-05-29 20:41:49 +0000344
drh382c0242001-10-06 16:33:02 +0000345////////////////////////// The DROP TABLE /////////////////////////////////////
drh348784e2000-05-29 20:41:49 +0000346//
drh74ad7fe2004-10-07 03:06:28 +0000347cmd ::= DROP TABLE fullname(X). {
348 sqlite3DropTable(pParse, X, 0);
danielk1977a8858102004-05-28 12:11:21 +0000349}
drh348784e2000-05-29 20:41:49 +0000350
drha76b5df2002-02-23 02:32:10 +0000351///////////////////// The CREATE VIEW statement /////////////////////////////
352//
drhb7f91642004-10-31 02:22:47 +0000353%ifndef SQLITE_OMIT_VIEW
danielk197748dec7e2004-05-28 12:33:30 +0000354cmd ::= CREATE(X) temp(T) VIEW nm(Y) dbnm(Z) AS select(S). {
355 sqlite3CreateView(pParse, &X, &Y, &Z, S, T);
drha76b5df2002-02-23 02:32:10 +0000356}
drh74ad7fe2004-10-07 03:06:28 +0000357cmd ::= DROP VIEW fullname(X). {
358 sqlite3DropTable(pParse, X, 1);
drha76b5df2002-02-23 02:32:10 +0000359}
drhb7f91642004-10-31 02:22:47 +0000360%endif // SQLITE_OMIT_VIEW
drha76b5df2002-02-23 02:32:10 +0000361
drh382c0242001-10-06 16:33:02 +0000362//////////////////////// The SELECT statement /////////////////////////////////
drh348784e2000-05-29 20:41:49 +0000363//
drh9bb61fe2000-06-05 16:01:39 +0000364cmd ::= select(X). {
danielk1977b3bce662005-01-29 08:32:43 +0000365 sqlite3Select(pParse, X, SRT_Callback, 0, 0, 0, 0, 0);
danielk19774adee202004-05-08 08:23:19 +0000366 sqlite3SelectDelete(X);
drh9bb61fe2000-06-05 16:01:39 +0000367}
drhefb72512000-05-31 20:00:52 +0000368
drh9bb61fe2000-06-05 16:01:39 +0000369%type select {Select*}
danielk19774adee202004-05-08 08:23:19 +0000370%destructor select {sqlite3SelectDelete($$);}
drh82c3d632000-06-06 21:56:07 +0000371%type oneselect {Select*}
danielk19774adee202004-05-08 08:23:19 +0000372%destructor oneselect {sqlite3SelectDelete($$);}
drh9bb61fe2000-06-05 16:01:39 +0000373
drh82c3d632000-06-06 21:56:07 +0000374select(A) ::= oneselect(X). {A = X;}
drhb7f91642004-10-31 02:22:47 +0000375%ifndef SQLITE_OMIT_COMPOUND_SELECT
drh0a36c572002-02-18 22:49:59 +0000376select(A) ::= select(X) multiselect_op(Y) oneselect(Z). {
drhdaffd0e2001-04-11 14:28:42 +0000377 if( Z ){
drh82c3d632000-06-06 21:56:07 +0000378 Z->op = Y;
379 Z->pPrior = X;
drhdaffd0e2001-04-11 14:28:42 +0000380 }
381 A = Z;
drh82c3d632000-06-06 21:56:07 +0000382}
drh0a36c572002-02-18 22:49:59 +0000383%type multiselect_op {int}
drh74ad7fe2004-10-07 03:06:28 +0000384multiselect_op(A) ::= UNION(OP). {A = @OP;}
385multiselect_op(A) ::= UNION ALL. {A = TK_ALL;}
386multiselect_op(A) ::= INTERSECT(OP). {A = @OP;}
387multiselect_op(A) ::= EXCEPT(OP). {A = @OP;}
drhb7f91642004-10-31 02:22:47 +0000388%endif // SQLITE_OMIT_COMPOUND_SELECT
drh82c3d632000-06-06 21:56:07 +0000389oneselect(A) ::= SELECT distinct(D) selcollist(W) from(X) where_opt(Y)
drh9bbca4c2001-11-06 04:00:18 +0000390 groupby_opt(P) having_opt(Q) orderby_opt(Z) limit_opt(L). {
danielk1977a2dc3b12005-02-05 12:48:48 +0000391 A = sqlite3SelectNew(W,X,Y,P,Q,Z,D,L.pLimit,L.pOffset);
drh9bb61fe2000-06-05 16:01:39 +0000392}
393
394// The "distinct" nonterminal is true (1) if the DISTINCT keyword is
395// present and false (0) if it is not.
396//
drhefb72512000-05-31 20:00:52 +0000397%type distinct {int}
drhefb72512000-05-31 20:00:52 +0000398distinct(A) ::= DISTINCT. {A = 1;}
drhfef52082000-06-06 01:50:43 +0000399distinct(A) ::= ALL. {A = 0;}
drhefb72512000-05-31 20:00:52 +0000400distinct(A) ::= . {A = 0;}
drh348784e2000-05-29 20:41:49 +0000401
drh9bb61fe2000-06-05 16:01:39 +0000402// selcollist is a list of expressions that are to become the return
drh7c917d12001-12-16 20:05:05 +0000403// values of the SELECT statement. The "*" in statements like
404// "SELECT * FROM ..." is encoded as a special expression with an
405// opcode of TK_ALL.
drh9bb61fe2000-06-05 16:01:39 +0000406//
drh348784e2000-05-29 20:41:49 +0000407%type selcollist {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000408%destructor selcollist {sqlite3ExprListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000409%type sclp {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000410%destructor sclp {sqlite3ExprListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000411sclp(A) ::= selcollist(X) COMMA. {A = X;}
412sclp(A) ::= . {A = 0;}
drh01f3f252002-05-24 16:14:15 +0000413selcollist(A) ::= sclp(P) expr(X) as(Y). {
danielk19774adee202004-05-08 08:23:19 +0000414 A = sqlite3ExprListAppend(P,X,Y.n?&Y:0);
drh01f3f252002-05-24 16:14:15 +0000415}
drh7c917d12001-12-16 20:05:05 +0000416selcollist(A) ::= sclp(P) STAR. {
danielk19774adee202004-05-08 08:23:19 +0000417 A = sqlite3ExprListAppend(P, sqlite3Expr(TK_ALL, 0, 0, 0), 0);
drh7c917d12001-12-16 20:05:05 +0000418}
drh5ad1a6c2002-07-01 12:27:09 +0000419selcollist(A) ::= sclp(P) nm(X) DOT STAR. {
danielk19774adee202004-05-08 08:23:19 +0000420 Expr *pRight = sqlite3Expr(TK_ALL, 0, 0, 0);
421 Expr *pLeft = sqlite3Expr(TK_ID, 0, 0, &X);
422 A = sqlite3ExprListAppend(P, sqlite3Expr(TK_DOT, pLeft, pRight, 0), 0);
drh54473222002-04-04 02:10:55 +0000423}
drh01f3f252002-05-24 16:14:15 +0000424
425// An option "AS <id>" phrase that can follow one of the expressions that
426// define the result set, or one of the tables in the FROM clause.
427//
428%type as {Token}
drh74ad7fe2004-10-07 03:06:28 +0000429as(X) ::= AS nm(Y). {X = Y;}
430as(X) ::= ids(Y). {X = Y;}
431as(X) ::= . {X.n = 0;}
drh9bb61fe2000-06-05 16:01:39 +0000432
drh348784e2000-05-29 20:41:49 +0000433
drhad3cab52002-05-24 02:04:32 +0000434%type seltablist {SrcList*}
danielk19774adee202004-05-08 08:23:19 +0000435%destructor seltablist {sqlite3SrcListDelete($$);}
drhad3cab52002-05-24 02:04:32 +0000436%type stl_prefix {SrcList*}
danielk19774adee202004-05-08 08:23:19 +0000437%destructor stl_prefix {sqlite3SrcListDelete($$);}
drhad3cab52002-05-24 02:04:32 +0000438%type from {SrcList*}
danielk19774adee202004-05-08 08:23:19 +0000439%destructor from {sqlite3SrcListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000440
drh01f3f252002-05-24 16:14:15 +0000441// A complete FROM clause.
442//
drhbf3a4fa2002-04-06 13:57:42 +0000443from(A) ::= . {A = sqliteMalloc(sizeof(*A));}
drh348784e2000-05-29 20:41:49 +0000444from(A) ::= FROM seltablist(X). {A = X;}
drh01f3f252002-05-24 16:14:15 +0000445
446// "seltablist" is a "Select Table List" - the content of the FROM clause
447// in a SELECT statement. "stl_prefix" is a prefix of this list.
448//
449stl_prefix(A) ::= seltablist(X) joinop(Y). {
450 A = X;
451 if( A && A->nSrc>0 ) A->a[A->nSrc-1].jointype = Y;
452}
drh348784e2000-05-29 20:41:49 +0000453stl_prefix(A) ::= . {A = 0;}
drh113088e2003-03-20 01:16:58 +0000454seltablist(A) ::= stl_prefix(X) nm(Y) dbnm(D) as(Z) on_opt(N) using_opt(U). {
danielk19774adee202004-05-08 08:23:19 +0000455 A = sqlite3SrcListAppend(X,&Y,&D);
456 if( Z.n ) sqlite3SrcListAddAlias(A,&Z);
drh01f3f252002-05-24 16:14:15 +0000457 if( N ){
458 if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pOn = N; }
danielk19774adee202004-05-08 08:23:19 +0000459 else { sqlite3ExprDelete(N); }
drh01f3f252002-05-24 16:14:15 +0000460 }
461 if( U ){
462 if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pUsing = U; }
danielk19774adee202004-05-08 08:23:19 +0000463 else { sqlite3IdListDelete(U); }
drh01f3f252002-05-24 16:14:15 +0000464 }
drhc4a3c772001-04-04 11:48:57 +0000465}
drh51522cd2005-01-20 13:36:19 +0000466%ifndef SQLITE_OMIT_SUBQUERY
467 seltablist(A) ::= stl_prefix(X) LP seltablist_paren(S) RP
468 as(Z) on_opt(N) using_opt(U). {
469 A = sqlite3SrcListAppend(X,0,0);
470 A->a[A->nSrc-1].pSelect = S;
471 if( Z.n ) sqlite3SrcListAddAlias(A,&Z);
472 if( N ){
473 if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pOn = N; }
474 else { sqlite3ExprDelete(N); }
475 }
476 if( U ){
477 if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pUsing = U; }
478 else { sqlite3IdListDelete(U); }
479 }
drhd5feede2002-05-08 21:46:14 +0000480 }
drh51522cd2005-01-20 13:36:19 +0000481
482 // A seltablist_paren nonterminal represents anything in a FROM that
483 // is contained inside parentheses. This can be either a subquery or
484 // a grouping of table and subqueries.
485 //
486 %type seltablist_paren {Select*}
487 %destructor seltablist_paren {sqlite3SelectDelete($$);}
488 seltablist_paren(A) ::= select(S). {A = S;}
489 seltablist_paren(A) ::= seltablist(F). {
danielk1977a2dc3b12005-02-05 12:48:48 +0000490 A = sqlite3SelectNew(0,F,0,0,0,0,0,0,0);
drh01f3f252002-05-24 16:14:15 +0000491 }
drh51522cd2005-01-20 13:36:19 +0000492%endif // SQLITE_OMIT_SUBQUERY
drhb733d032004-01-24 20:18:12 +0000493
drh113088e2003-03-20 01:16:58 +0000494%type dbnm {Token}
495dbnm(A) ::= . {A.z=0; A.n=0;}
496dbnm(A) ::= DOT nm(X). {A = X;}
497
drh74ad7fe2004-10-07 03:06:28 +0000498%type fullname {SrcList*}
499%destructor fullname {sqlite3SrcListDelete($$);}
500fullname(A) ::= nm(X) dbnm(Y). {A = sqlite3SrcListAppend(0,&X,&Y);}
501
drh01f3f252002-05-24 16:14:15 +0000502%type joinop {int}
503%type joinop2 {int}
504joinop(X) ::= COMMA. { X = JT_INNER; }
505joinop(X) ::= JOIN. { X = JT_INNER; }
danielk19774adee202004-05-08 08:23:19 +0000506joinop(X) ::= JOIN_KW(A) JOIN. { X = sqlite3JoinType(pParse,&A,0,0); }
507joinop(X) ::= JOIN_KW(A) nm(B) JOIN. { X = sqlite3JoinType(pParse,&A,&B,0); }
drh5ad1a6c2002-07-01 12:27:09 +0000508joinop(X) ::= JOIN_KW(A) nm(B) nm(C) JOIN.
danielk19774adee202004-05-08 08:23:19 +0000509 { X = sqlite3JoinType(pParse,&A,&B,&C); }
drh01f3f252002-05-24 16:14:15 +0000510
511%type on_opt {Expr*}
danielk19774adee202004-05-08 08:23:19 +0000512%destructor on_opt {sqlite3ExprDelete($$);}
drh01f3f252002-05-24 16:14:15 +0000513on_opt(N) ::= ON expr(E). {N = E;}
514on_opt(N) ::= . {N = 0;}
515
516%type using_opt {IdList*}
danielk19774adee202004-05-08 08:23:19 +0000517%destructor using_opt {sqlite3IdListDelete($$);}
danielk19770202b292004-06-09 09:55:16 +0000518using_opt(U) ::= USING LP inscollist(L) RP. {U = L;}
drh01f3f252002-05-24 16:14:15 +0000519using_opt(U) ::= . {U = 0;}
520
521
drh348784e2000-05-29 20:41:49 +0000522%type orderby_opt {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000523%destructor orderby_opt {sqlite3ExprListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000524%type sortlist {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000525%destructor sortlist {sqlite3ExprListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000526%type sortitem {Expr*}
danielk19774adee202004-05-08 08:23:19 +0000527%destructor sortitem {sqlite3ExprDelete($$);}
drh348784e2000-05-29 20:41:49 +0000528
529orderby_opt(A) ::= . {A = 0;}
530orderby_opt(A) ::= ORDER BY sortlist(X). {A = X;}
drh8e2ca022002-06-17 17:07:19 +0000531sortlist(A) ::= sortlist(X) COMMA sortitem(Y) collate(C) sortorder(Z). {
drh1186b0a2004-05-20 23:37:54 +0000532 A = sqlite3ExprListAppend(X,Y,C.n>0?&C:0);
drhd3d39e92004-05-20 22:16:29 +0000533 if( A ) A->a[A->nExpr-1].sortOrder = Z;
drh9bb61fe2000-06-05 16:01:39 +0000534}
drh38640e12002-07-05 21:42:36 +0000535sortlist(A) ::= sortitem(Y) collate(C) sortorder(Z). {
drh1186b0a2004-05-20 23:37:54 +0000536 A = sqlite3ExprListAppend(0,Y,C.n>0?&C:0);
danielk197796fb0dd2004-06-30 09:49:22 +0000537 if( A && A->a ) A->a[0].sortOrder = Z;
drh9bb61fe2000-06-05 16:01:39 +0000538}
drhda9d6c42000-05-31 18:20:14 +0000539sortitem(A) ::= expr(X). {A = X;}
drh348784e2000-05-29 20:41:49 +0000540
541%type sortorder {int}
drhd3d39e92004-05-20 22:16:29 +0000542%type collate {Token}
drh348784e2000-05-29 20:41:49 +0000543
drh8e2ca022002-06-17 17:07:19 +0000544sortorder(A) ::= ASC. {A = SQLITE_SO_ASC;}
545sortorder(A) ::= DESC. {A = SQLITE_SO_DESC;}
546sortorder(A) ::= . {A = SQLITE_SO_ASC;}
drhd3d39e92004-05-20 22:16:29 +0000547collate(C) ::= . {C.z = 0; C.n = 0;}
548collate(C) ::= COLLATE id(X). {C = X;}
drh348784e2000-05-29 20:41:49 +0000549
drh22827922000-06-06 17:27:05 +0000550%type groupby_opt {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000551%destructor groupby_opt {sqlite3ExprListDelete($$);}
drh6206d502000-06-19 19:09:08 +0000552groupby_opt(A) ::= . {A = 0;}
drh22827922000-06-06 17:27:05 +0000553groupby_opt(A) ::= GROUP BY exprlist(X). {A = X;}
554
555%type having_opt {Expr*}
danielk19774adee202004-05-08 08:23:19 +0000556%destructor having_opt {sqlite3ExprDelete($$);}
drh6206d502000-06-19 19:09:08 +0000557having_opt(A) ::= . {A = 0;}
drh22827922000-06-06 17:27:05 +0000558having_opt(A) ::= HAVING expr(X). {A = X;}
559
drhad3cab52002-05-24 02:04:32 +0000560%type limit_opt {struct LimitVal}
danielk1977a2dc3b12005-02-05 12:48:48 +0000561%destructor limit_opt {
562 sqlite3ExprDelete($$.pLimit);
563 sqlite3ExprDelete($$.pOffset);
564}
565limit_opt(A) ::= . {A.pLimit = 0; A.pOffset = 0;}
566limit_opt(A) ::= LIMIT expr(X). {A.pLimit = X; A.pOffset = 0;}
567limit_opt(A) ::= LIMIT expr(X) OFFSET expr(Y).
568 {A.pLimit = X; A.pOffset = Y;}
569limit_opt(A) ::= LIMIT expr(X) COMMA expr(Y).
570 {A.pOffset = X; A.pLimit = Y;}
drh9bbca4c2001-11-06 04:00:18 +0000571
drh382c0242001-10-06 16:33:02 +0000572/////////////////////////// The DELETE statement /////////////////////////////
573//
drh74ad7fe2004-10-07 03:06:28 +0000574cmd ::= DELETE FROM fullname(X) where_opt(Y). {sqlite3DeleteFrom(pParse,X,Y);}
drh348784e2000-05-29 20:41:49 +0000575
576%type where_opt {Expr*}
danielk19774adee202004-05-08 08:23:19 +0000577%destructor where_opt {sqlite3ExprDelete($$);}
drh348784e2000-05-29 20:41:49 +0000578
579where_opt(A) ::= . {A = 0;}
580where_opt(A) ::= WHERE expr(X). {A = X;}
581
drh382c0242001-10-06 16:33:02 +0000582////////////////////////// The UPDATE command ////////////////////////////////
583//
drh74ad7fe2004-10-07 03:06:28 +0000584cmd ::= UPDATE orconf(R) fullname(X) SET setlist(Y) where_opt(Z).
585 {sqlite3Update(pParse,X,Y,Z,R);}
drh348784e2000-05-29 20:41:49 +0000586
drhf8db1bc2005-04-22 02:38:37 +0000587%type setlist {ExprList*}
588%destructor setlist {sqlite3ExprListDelete($$);}
589
drh5ad1a6c2002-07-01 12:27:09 +0000590setlist(A) ::= setlist(Z) COMMA nm(X) EQ expr(Y).
danielk19774adee202004-05-08 08:23:19 +0000591 {A = sqlite3ExprListAppend(Z,Y,&X);}
592setlist(A) ::= nm(X) EQ expr(Y). {A = sqlite3ExprListAppend(0,Y,&X);}
drh348784e2000-05-29 20:41:49 +0000593
drh382c0242001-10-06 16:33:02 +0000594////////////////////////// The INSERT command /////////////////////////////////
595//
drh74ad7fe2004-10-07 03:06:28 +0000596cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F)
drh113088e2003-03-20 01:16:58 +0000597 VALUES LP itemlist(Y) RP.
drh74ad7fe2004-10-07 03:06:28 +0000598 {sqlite3Insert(pParse, X, Y, 0, F, R);}
599cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F) select(S).
600 {sqlite3Insert(pParse, X, 0, S, F, R);}
drh348784e2000-05-29 20:41:49 +0000601
drhfa86c412002-02-02 15:01:15 +0000602%type insert_cmd {int}
603insert_cmd(A) ::= INSERT orconf(R). {A = R;}
604insert_cmd(A) ::= REPLACE. {A = OE_Replace;}
605
drh348784e2000-05-29 20:41:49 +0000606
607%type itemlist {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000608%destructor itemlist {sqlite3ExprListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000609
danielk19774adee202004-05-08 08:23:19 +0000610itemlist(A) ::= itemlist(X) COMMA expr(Y). {A = sqlite3ExprListAppend(X,Y,0);}
611itemlist(A) ::= expr(X). {A = sqlite3ExprListAppend(0,X,0);}
drh348784e2000-05-29 20:41:49 +0000612
drh967e8b72000-06-21 13:59:10 +0000613%type inscollist_opt {IdList*}
danielk19774adee202004-05-08 08:23:19 +0000614%destructor inscollist_opt {sqlite3IdListDelete($$);}
drh967e8b72000-06-21 13:59:10 +0000615%type inscollist {IdList*}
danielk19774adee202004-05-08 08:23:19 +0000616%destructor inscollist {sqlite3IdListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000617
drhc4a3c772001-04-04 11:48:57 +0000618inscollist_opt(A) ::= . {A = 0;}
619inscollist_opt(A) ::= LP inscollist(X) RP. {A = X;}
danielk19774adee202004-05-08 08:23:19 +0000620inscollist(A) ::= inscollist(X) COMMA nm(Y). {A = sqlite3IdListAppend(X,&Y);}
621inscollist(A) ::= nm(Y). {A = sqlite3IdListAppend(0,&Y);}
drh348784e2000-05-29 20:41:49 +0000622
drh382c0242001-10-06 16:33:02 +0000623/////////////////////////// Expression Processing /////////////////////////////
624//
drh348784e2000-05-29 20:41:49 +0000625
626%type expr {Expr*}
danielk19774adee202004-05-08 08:23:19 +0000627%destructor expr {sqlite3ExprDelete($$);}
danielk19777977a172004-11-09 12:44:37 +0000628%type term {Expr*}
629%destructor term {sqlite3ExprDelete($$);}
drh348784e2000-05-29 20:41:49 +0000630
danielk19777977a172004-11-09 12:44:37 +0000631expr(A) ::= term(X). {A = X;}
danielk1977752e6792004-11-09 16:13:33 +0000632expr(A) ::= LP(B) expr(X) RP(E). {A = X; sqlite3ExprSpan(A,&B,&E); }
danielk19777977a172004-11-09 12:44:37 +0000633term(A) ::= NULL(X). {A = sqlite3Expr(@X, 0, 0, &X);}
danielk19774adee202004-05-08 08:23:19 +0000634expr(A) ::= ID(X). {A = sqlite3Expr(TK_ID, 0, 0, &X);}
635expr(A) ::= JOIN_KW(X). {A = sqlite3Expr(TK_ID, 0, 0, &X);}
drh5ad1a6c2002-07-01 12:27:09 +0000636expr(A) ::= nm(X) DOT nm(Y). {
danielk19774adee202004-05-08 08:23:19 +0000637 Expr *temp1 = sqlite3Expr(TK_ID, 0, 0, &X);
638 Expr *temp2 = sqlite3Expr(TK_ID, 0, 0, &Y);
639 A = sqlite3Expr(TK_DOT, temp1, temp2, 0);
drhe1b6a5b2000-07-29 13:06:59 +0000640}
drhd24cc422003-03-27 12:51:24 +0000641expr(A) ::= nm(X) DOT nm(Y) DOT nm(Z). {
danielk19774adee202004-05-08 08:23:19 +0000642 Expr *temp1 = sqlite3Expr(TK_ID, 0, 0, &X);
643 Expr *temp2 = sqlite3Expr(TK_ID, 0, 0, &Y);
644 Expr *temp3 = sqlite3Expr(TK_ID, 0, 0, &Z);
645 Expr *temp4 = sqlite3Expr(TK_DOT, temp2, temp3, 0);
646 A = sqlite3Expr(TK_DOT, temp1, temp4, 0);
drhd24cc422003-03-27 12:51:24 +0000647}
danielk19777977a172004-11-09 12:44:37 +0000648term(A) ::= INTEGER(X). {A = sqlite3Expr(@X, 0, 0, &X);}
649term(A) ::= FLOAT(X). {A = sqlite3Expr(@X, 0, 0, &X);}
650term(A) ::= STRING(X). {A = sqlite3Expr(@X, 0, 0, &X);}
danielk1977aee18ef2005-03-09 12:26:50 +0000651term(A) ::= BLOB(X). {A = sqlite3Expr(@X, 0, 0, &X);}
drh4e0cff62004-11-05 05:10:28 +0000652expr(A) ::= REGISTER(X). {A = sqlite3RegisterExpr(pParse, &X);}
drh7c972de2003-09-06 22:18:07 +0000653expr(A) ::= VARIABLE(X). {
drh895d7472004-08-20 16:02:39 +0000654 Token *pToken = &X;
655 Expr *pExpr = A = sqlite3Expr(TK_VARIABLE, 0, 0, pToken);
drhfa6bc002004-09-07 16:19:52 +0000656 sqlite3ExprAssignVarNumber(pParse, pExpr);
drh7c972de2003-09-06 22:18:07 +0000657}
drh487e2622005-06-25 18:42:14 +0000658%ifndef SQLITE_OMIT_CAST
659expr(A) ::= CAST(X) LP expr(E) AS typetoken(T) RP(Y). {
660 A = sqlite3Expr(TK_CAST, E, 0, &T);
661 sqlite3ExprSpan(A,&X,&Y);
662}
663%endif // SQLITE_OMIT_CAST
drhfd357972005-09-09 01:33:19 +0000664expr(A) ::= ID(X) LP distinct(D) exprlist(Y) RP(E). {
danielk19774adee202004-05-08 08:23:19 +0000665 A = sqlite3ExprFunction(Y, &X);
666 sqlite3ExprSpan(A,&X,&E);
drhfd357972005-09-09 01:33:19 +0000667 if( D ){
drhfd357972005-09-09 01:33:19 +0000668 A->flags |= EP_Distinct;
669 }
drhe1b6a5b2000-07-29 13:06:59 +0000670}
671expr(A) ::= ID(X) LP STAR RP(E). {
danielk19774adee202004-05-08 08:23:19 +0000672 A = sqlite3ExprFunction(0, &X);
673 sqlite3ExprSpan(A,&X,&E);
drhe1b6a5b2000-07-29 13:06:59 +0000674}
drhb71090f2005-05-23 17:26:51 +0000675term(A) ::= CTIME_KW(OP). {
676 /* The CURRENT_TIME, CURRENT_DATE, and CURRENT_TIMESTAMP values are
677 ** treated as functions that return constants */
678 A = sqlite3ExprFunction(0,&OP);
679 if( A ) A->op = TK_CONST_FUNC;
680}
drh7ac25c72004-08-19 15:12:26 +0000681expr(A) ::= expr(X) AND(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
682expr(A) ::= expr(X) OR(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
683expr(A) ::= expr(X) LT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
684expr(A) ::= expr(X) GT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
685expr(A) ::= expr(X) LE(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
686expr(A) ::= expr(X) GE(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
687expr(A) ::= expr(X) NE(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
688expr(A) ::= expr(X) EQ(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
689expr(A) ::= expr(X) BITAND(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
690expr(A) ::= expr(X) BITOR(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
691expr(A) ::= expr(X) LSHIFT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
692expr(A) ::= expr(X) RSHIFT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
drh74ad7fe2004-10-07 03:06:28 +0000693expr(A) ::= expr(X) PLUS(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
694expr(A) ::= expr(X) MINUS(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
695expr(A) ::= expr(X) STAR(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
696expr(A) ::= expr(X) SLASH(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
697expr(A) ::= expr(X) REM(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
698expr(A) ::= expr(X) CONCAT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
699%type likeop {struct LikeOp}
drhb71090f2005-05-23 17:26:51 +0000700likeop(A) ::= LIKE_KW(X). {A.operator = X; A.not = 0;}
701likeop(A) ::= NOT LIKE_KW(X). {A.operator = X; A.not = 1;}
danielk19777c6303c2004-11-17 16:41:29 +0000702%type escape {Expr*}
703escape(X) ::= ESCAPE expr(A). [ESCAPE] {X = A;}
704escape(X) ::= . [ESCAPE] {X = 0;}
drhb71090f2005-05-23 17:26:51 +0000705expr(A) ::= expr(X) likeop(OP) expr(Y) escape(E). [LIKE_KW] {
danielk19774adee202004-05-08 08:23:19 +0000706 ExprList *pList = sqlite3ExprListAppend(0, Y, 0);
707 pList = sqlite3ExprListAppend(pList, X, 0);
danielk19777c6303c2004-11-17 16:41:29 +0000708 if( E ){
709 pList = sqlite3ExprListAppend(pList, E, 0);
710 }
drhb71090f2005-05-23 17:26:51 +0000711 A = sqlite3ExprFunction(pList, &OP.operator);
drh2e3a1f12004-10-06 14:39:28 +0000712 if( OP.not ) A = sqlite3Expr(TK_NOT, A, 0, 0);
danielk19774adee202004-05-08 08:23:19 +0000713 sqlite3ExprSpan(A, &X->span, &Y->span);
drh0ac65892002-04-20 14:24:41 +0000714}
danielk19777c6303c2004-11-17 16:41:29 +0000715
drhe1b6a5b2000-07-29 13:06:59 +0000716expr(A) ::= expr(X) ISNULL(E). {
danielk19774adee202004-05-08 08:23:19 +0000717 A = sqlite3Expr(TK_ISNULL, X, 0, 0);
718 sqlite3ExprSpan(A,&X->span,&E);
drhe1b6a5b2000-07-29 13:06:59 +0000719}
drh33048c02001-10-01 14:29:22 +0000720expr(A) ::= expr(X) IS NULL(E). {
danielk19774adee202004-05-08 08:23:19 +0000721 A = sqlite3Expr(TK_ISNULL, X, 0, 0);
722 sqlite3ExprSpan(A,&X->span,&E);
drh33048c02001-10-01 14:29:22 +0000723}
drhe1b6a5b2000-07-29 13:06:59 +0000724expr(A) ::= expr(X) NOTNULL(E). {
danielk19774adee202004-05-08 08:23:19 +0000725 A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
726 sqlite3ExprSpan(A,&X->span,&E);
drhe1b6a5b2000-07-29 13:06:59 +0000727}
drh33048c02001-10-01 14:29:22 +0000728expr(A) ::= expr(X) NOT NULL(E). {
danielk19774adee202004-05-08 08:23:19 +0000729 A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
730 sqlite3ExprSpan(A,&X->span,&E);
drh33048c02001-10-01 14:29:22 +0000731}
drh81a20f22001-10-12 17:30:04 +0000732expr(A) ::= expr(X) IS NOT NULL(E). {
danielk19774adee202004-05-08 08:23:19 +0000733 A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
734 sqlite3ExprSpan(A,&X->span,&E);
drh81a20f22001-10-12 17:30:04 +0000735}
drhe1b6a5b2000-07-29 13:06:59 +0000736expr(A) ::= NOT(B) expr(X). {
drh7ac25c72004-08-19 15:12:26 +0000737 A = sqlite3Expr(@B, X, 0, 0);
danielk19774adee202004-05-08 08:23:19 +0000738 sqlite3ExprSpan(A,&B,&X->span);
drhe1b6a5b2000-07-29 13:06:59 +0000739}
drh81a20f22001-10-12 17:30:04 +0000740expr(A) ::= BITNOT(B) expr(X). {
drh7ac25c72004-08-19 15:12:26 +0000741 A = sqlite3Expr(@B, X, 0, 0);
danielk19774adee202004-05-08 08:23:19 +0000742 sqlite3ExprSpan(A,&B,&X->span);
drh81a20f22001-10-12 17:30:04 +0000743}
drhe1b6a5b2000-07-29 13:06:59 +0000744expr(A) ::= MINUS(B) expr(X). [UMINUS] {
danielk19774adee202004-05-08 08:23:19 +0000745 A = sqlite3Expr(TK_UMINUS, X, 0, 0);
746 sqlite3ExprSpan(A,&B,&X->span);
drhe1b6a5b2000-07-29 13:06:59 +0000747}
drh4b59ab52002-08-24 18:24:51 +0000748expr(A) ::= PLUS(B) expr(X). [UPLUS] {
danielk19774adee202004-05-08 08:23:19 +0000749 A = sqlite3Expr(TK_UPLUS, X, 0, 0);
750 sqlite3ExprSpan(A,&B,&X->span);
drhe1b6a5b2000-07-29 13:06:59 +0000751}
drh2e3a1f12004-10-06 14:39:28 +0000752%type between_op {int}
753between_op(A) ::= BETWEEN. {A = 0;}
754between_op(A) ::= NOT BETWEEN. {A = 1;}
755expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
danielk19774adee202004-05-08 08:23:19 +0000756 ExprList *pList = sqlite3ExprListAppend(0, X, 0);
757 pList = sqlite3ExprListAppend(pList, Y, 0);
758 A = sqlite3Expr(TK_BETWEEN, W, 0, 0);
drhdaffd0e2001-04-11 14:28:42 +0000759 if( A ) A->pList = pList;
drh2e3a1f12004-10-06 14:39:28 +0000760 if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
danielk19774adee202004-05-08 08:23:19 +0000761 sqlite3ExprSpan(A,&W->span,&Y->span);
drhfef52082000-06-06 01:50:43 +0000762}
drh51522cd2005-01-20 13:36:19 +0000763%ifndef SQLITE_OMIT_SUBQUERY
danielk19773e8c37e2005-01-21 03:12:14 +0000764 %type in_op {int}
765 in_op(A) ::= IN. {A = 0;}
766 in_op(A) ::= NOT IN. {A = 1;}
767 expr(A) ::= expr(X) in_op(N) LP exprlist(Y) RP(E). [IN] {
768 A = sqlite3Expr(TK_IN, X, 0, 0);
danielk1977d5d56522005-03-16 12:15:20 +0000769 if( A ){
770 A->pList = Y;
771 }else{
772 sqlite3ExprListDelete(Y);
773 }
danielk19773e8c37e2005-01-21 03:12:14 +0000774 if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
775 sqlite3ExprSpan(A,&X->span,&E);
776 }
drh51522cd2005-01-20 13:36:19 +0000777 expr(A) ::= LP(B) select(X) RP(E). {
778 A = sqlite3Expr(TK_SELECT, 0, 0, 0);
779 if( A ) A->pSelect = X;
danielk1977d5d56522005-03-16 12:15:20 +0000780 if( !A ) sqlite3SelectDelete(X);
drh51522cd2005-01-20 13:36:19 +0000781 sqlite3ExprSpan(A,&B,&E);
782 }
783 expr(A) ::= expr(X) in_op(N) LP select(Y) RP(E). [IN] {
784 A = sqlite3Expr(TK_IN, X, 0, 0);
785 if( A ) A->pSelect = Y;
danielk1977d5d56522005-03-16 12:15:20 +0000786 if( !A ) sqlite3SelectDelete(Y);
drh51522cd2005-01-20 13:36:19 +0000787 if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
788 sqlite3ExprSpan(A,&X->span,&E);
789 }
790 expr(A) ::= expr(X) in_op(N) nm(Y) dbnm(Z). [IN] {
791 SrcList *pSrc = sqlite3SrcListAppend(0,&Y,&Z);
792 A = sqlite3Expr(TK_IN, X, 0, 0);
danielk1977a2dc3b12005-02-05 12:48:48 +0000793 if( A ) A->pSelect = sqlite3SelectNew(0,pSrc,0,0,0,0,0,0,0);
drh51522cd2005-01-20 13:36:19 +0000794 if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
795 sqlite3ExprSpan(A,&X->span,Z.z?&Z:&Y);
796 }
797 expr(A) ::= EXISTS(B) LP select(Y) RP(E). {
798 Expr *p = A = sqlite3Expr(TK_EXISTS, 0, 0, 0);
799 if( p ){
800 p->pSelect = Y;
801 sqlite3ExprSpan(p,&B,&E);
802 }
danielk1977d5d56522005-03-16 12:15:20 +0000803 if( !p ) sqlite3SelectDelete(Y);
drh51522cd2005-01-20 13:36:19 +0000804 }
805%endif // SQLITE_OMIT_SUBQUERY
drhfef52082000-06-06 01:50:43 +0000806
drh17a7f8d2002-03-24 13:13:27 +0000807/* CASE expressions */
808expr(A) ::= CASE(C) case_operand(X) case_exprlist(Y) case_else(Z) END(E). {
danielk19774adee202004-05-08 08:23:19 +0000809 A = sqlite3Expr(TK_CASE, X, Z, 0);
drh17a7f8d2002-03-24 13:13:27 +0000810 if( A ) A->pList = Y;
danielk19774adee202004-05-08 08:23:19 +0000811 sqlite3ExprSpan(A, &C, &E);
drh17a7f8d2002-03-24 13:13:27 +0000812}
813%type case_exprlist {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000814%destructor case_exprlist {sqlite3ExprListDelete($$);}
drh17a7f8d2002-03-24 13:13:27 +0000815case_exprlist(A) ::= case_exprlist(X) WHEN expr(Y) THEN expr(Z). {
danielk19774adee202004-05-08 08:23:19 +0000816 A = sqlite3ExprListAppend(X, Y, 0);
817 A = sqlite3ExprListAppend(A, Z, 0);
drh17a7f8d2002-03-24 13:13:27 +0000818}
819case_exprlist(A) ::= WHEN expr(Y) THEN expr(Z). {
danielk19774adee202004-05-08 08:23:19 +0000820 A = sqlite3ExprListAppend(0, Y, 0);
821 A = sqlite3ExprListAppend(A, Z, 0);
drh17a7f8d2002-03-24 13:13:27 +0000822}
823%type case_else {Expr*}
824case_else(A) ::= ELSE expr(X). {A = X;}
825case_else(A) ::= . {A = 0;}
826%type case_operand {Expr*}
827case_operand(A) ::= expr(X). {A = X;}
828case_operand(A) ::= . {A = 0;}
drh348784e2000-05-29 20:41:49 +0000829
830%type exprlist {ExprList*}
danielk19774adee202004-05-08 08:23:19 +0000831%destructor exprlist {sqlite3ExprListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000832%type expritem {Expr*}
danielk19774adee202004-05-08 08:23:19 +0000833%destructor expritem {sqlite3ExprDelete($$);}
drh348784e2000-05-29 20:41:49 +0000834
drh348784e2000-05-29 20:41:49 +0000835exprlist(A) ::= exprlist(X) COMMA expritem(Y).
drh74ad7fe2004-10-07 03:06:28 +0000836 {A = sqlite3ExprListAppend(X,Y,0);}
danielk19774adee202004-05-08 08:23:19 +0000837exprlist(A) ::= expritem(X). {A = sqlite3ExprListAppend(0,X,0);}
drh348784e2000-05-29 20:41:49 +0000838expritem(A) ::= expr(X). {A = X;}
839expritem(A) ::= . {A = 0;}
drhcce7d172000-05-31 15:34:51 +0000840
drh382c0242001-10-06 16:33:02 +0000841///////////////////////////// The CREATE INDEX command ///////////////////////
842//
danielk1977cbb18d22004-05-28 11:37:27 +0000843cmd ::= CREATE(S) uniqueflag(U) INDEX nm(X) dbnm(D)
danielk19772b6d46b2005-02-14 06:38:40 +0000844 ON nm(Y) LP idxlist(Z) RP(E) onconf(R). {
drh9cfcf5d2002-01-29 18:41:24 +0000845 if( U!=OE_None ) U = R;
846 if( U==OE_Default) U = OE_Abort;
danielk19772b6d46b2005-02-14 06:38:40 +0000847 sqlite3CreateIndex(pParse, &X, &D, sqlite3SrcListAppend(0,&Y,0),Z,U, &S, &E);
drh9cfcf5d2002-01-29 18:41:24 +0000848}
drh717e6402001-09-27 03:22:32 +0000849
850%type uniqueflag {int}
drh74ad7fe2004-10-07 03:06:28 +0000851uniqueflag(A) ::= UNIQUE. {A = OE_Abort;}
852uniqueflag(A) ::= . {A = OE_None;}
drh348784e2000-05-29 20:41:49 +0000853
danielk19770202b292004-06-09 09:55:16 +0000854%type idxlist {ExprList*}
855%destructor idxlist {sqlite3ExprListDelete($$);}
856%type idxlist_opt {ExprList*}
857%destructor idxlist_opt {sqlite3ExprListDelete($$);}
drh348784e2000-05-29 20:41:49 +0000858%type idxitem {Token}
859
drhc2eef3b2002-08-31 18:53:06 +0000860idxlist_opt(A) ::= . {A = 0;}
861idxlist_opt(A) ::= LP idxlist(X) RP. {A = X;}
danielk19770202b292004-06-09 09:55:16 +0000862idxlist(A) ::= idxlist(X) COMMA idxitem(Y) collate(C) sortorder. {
863 Expr *p = 0;
864 if( C.n>0 ){
865 p = sqlite3Expr(TK_COLUMN, 0, 0, 0);
866 if( p ) p->pColl = sqlite3LocateCollSeq(pParse, C.z, C.n);
867 }
868 A = sqlite3ExprListAppend(X, p, &Y);
869}
870idxlist(A) ::= idxitem(Y) collate(C) sortorder. {
871 Expr *p = 0;
872 if( C.n>0 ){
873 p = sqlite3Expr(TK_COLUMN, 0, 0, 0);
874 if( p ) p->pColl = sqlite3LocateCollSeq(pParse, C.z, C.n);
875 }
876 A = sqlite3ExprListAppend(0, p, &Y);
877}
878idxitem(A) ::= nm(X). {A = X;}
879
drh348784e2000-05-29 20:41:49 +0000880
drh8aff1012001-12-22 14:49:24 +0000881///////////////////////////// The DROP INDEX command /////////////////////////
drh382c0242001-10-06 16:33:02 +0000882//
drh74ad7fe2004-10-07 03:06:28 +0000883cmd ::= DROP INDEX fullname(X). {sqlite3DropIndex(pParse, X);}
drh982cef72000-05-30 16:27:03 +0000884
drh382c0242001-10-06 16:33:02 +0000885///////////////////////////// The VACUUM command /////////////////////////////
886//
danielk19774adee202004-05-08 08:23:19 +0000887cmd ::= VACUUM. {sqlite3Vacuum(pParse,0);}
drh74ad7fe2004-10-07 03:06:28 +0000888cmd ::= VACUUM nm. {sqlite3Vacuum(pParse,0);}
drhf57b14a2001-09-14 18:54:08 +0000889
drh382c0242001-10-06 16:33:02 +0000890///////////////////////////// The PRAGMA command /////////////////////////////
891//
drh13d70422004-11-13 15:59:14 +0000892%ifndef SQLITE_OMIT_PRAGMA
danielk197791cf71b2004-06-26 06:37:06 +0000893cmd ::= PRAGMA nm(X) dbnm(Z) EQ nm(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
894cmd ::= PRAGMA nm(X) dbnm(Z) EQ ON(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
895cmd ::= PRAGMA nm(X) dbnm(Z) EQ plus_num(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
896cmd ::= PRAGMA nm(X) dbnm(Z) EQ minus_num(Y). {
897 sqlite3Pragma(pParse,&X,&Z,&Y,1);
898}
899cmd ::= PRAGMA nm(X) dbnm(Z) LP nm(Y) RP. {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
drh74ad7fe2004-10-07 03:06:28 +0000900cmd ::= PRAGMA nm(X) dbnm(Z). {sqlite3Pragma(pParse,&X,&Z,0,0);}
drh13d70422004-11-13 15:59:14 +0000901%endif // SQLITE_OMIT_PRAGMA
drhf57b14a2001-09-14 18:54:08 +0000902plus_num(A) ::= plus_opt number(X). {A = X;}
903minus_num(A) ::= MINUS number(X). {A = X;}
drh74ad7fe2004-10-07 03:06:28 +0000904number(A) ::= INTEGER(X). {A = X;}
905number(A) ::= FLOAT(X). {A = X;}
drhf57b14a2001-09-14 18:54:08 +0000906plus_opt ::= PLUS.
907plus_opt ::= .
danielk1977c3f9bad2002-05-15 08:30:12 +0000908
909//////////////////////////// The CREATE TRIGGER command /////////////////////
drhf0f258b2003-04-21 18:48:45 +0000910
drhb7f91642004-10-31 02:22:47 +0000911%ifndef SQLITE_OMIT_TRIGGER
912
danielk19773df6b252004-05-29 10:23:19 +0000913cmd ::= CREATE trigger_decl(A) BEGIN trigger_cmd_list(S) END(Z). {
drh4b59ab52002-08-24 18:24:51 +0000914 Token all;
915 all.z = A.z;
916 all.n = (Z.z - A.z) + Z.n;
danielk19774adee202004-05-08 08:23:19 +0000917 sqlite3FinishTrigger(pParse, S, &all);
drhf0f258b2003-04-21 18:48:45 +0000918}
919
drh74ad7fe2004-10-07 03:06:28 +0000920trigger_decl(A) ::= temp(T) TRIGGER nm(B) dbnm(Z) trigger_time(C)
921 trigger_event(D)
922 ON fullname(E) foreach_clause(F) when_clause(G). {
923 sqlite3BeginTrigger(pParse, &B, &Z, C, D.a, D.b, E, F, G, T);
danielk19773df6b252004-05-29 10:23:19 +0000924 A = (Z.n==0?B:Z);
danielk1977c3f9bad2002-05-15 08:30:12 +0000925}
926
927%type trigger_time {int}
928trigger_time(A) ::= BEFORE. { A = TK_BEFORE; }
929trigger_time(A) ::= AFTER. { A = TK_AFTER; }
930trigger_time(A) ::= INSTEAD OF. { A = TK_INSTEAD;}
931trigger_time(A) ::= . { A = TK_BEFORE; }
932
drhad3cab52002-05-24 02:04:32 +0000933%type trigger_event {struct TrigEvent}
danielk19774adee202004-05-08 08:23:19 +0000934%destructor trigger_event {sqlite3IdListDelete($$.b);}
drh74ad7fe2004-10-07 03:06:28 +0000935trigger_event(A) ::= DELETE(OP). {A.a = @OP; A.b = 0;}
936trigger_event(A) ::= INSERT(OP). {A.a = @OP; A.b = 0;}
937trigger_event(A) ::= UPDATE(OP). {A.a = @OP; A.b = 0;}
938trigger_event(A) ::= UPDATE OF inscollist(X). {A.a = TK_UPDATE; A.b = X;}
danielk1977c3f9bad2002-05-15 08:30:12 +0000939
940%type foreach_clause {int}
941foreach_clause(A) ::= . { A = TK_ROW; }
942foreach_clause(A) ::= FOR EACH ROW. { A = TK_ROW; }
943foreach_clause(A) ::= FOR EACH STATEMENT. { A = TK_STATEMENT; }
944
drh0bb132b2004-07-20 14:06:51 +0000945%type when_clause {Expr*}
danielk1977c3f9bad2002-05-15 08:30:12 +0000946when_clause(A) ::= . { A = 0; }
947when_clause(A) ::= WHEN expr(X). { A = X; }
948
drh0bb132b2004-07-20 14:06:51 +0000949%type trigger_cmd_list {TriggerStep*}
danielk19774adee202004-05-08 08:23:19 +0000950%destructor trigger_cmd_list {sqlite3DeleteTriggerStep($$);}
danielk1977c3f9bad2002-05-15 08:30:12 +0000951trigger_cmd_list(A) ::= trigger_cmd(X) SEMI trigger_cmd_list(Y). {
drha69d9162003-04-17 22:57:53 +0000952 X->pNext = Y;
953 A = X;
954}
danielk1977c3f9bad2002-05-15 08:30:12 +0000955trigger_cmd_list(A) ::= . { A = 0; }
956
drh0bb132b2004-07-20 14:06:51 +0000957%type trigger_cmd {TriggerStep*}
danielk19774adee202004-05-08 08:23:19 +0000958%destructor trigger_cmd {sqlite3DeleteTriggerStep($$);}
danielk1977c3f9bad2002-05-15 08:30:12 +0000959// UPDATE
drh5ad1a6c2002-07-01 12:27:09 +0000960trigger_cmd(A) ::= UPDATE orconf(R) nm(X) SET setlist(Y) where_opt(Z).
danielk19774adee202004-05-08 08:23:19 +0000961 { A = sqlite3TriggerUpdateStep(&X, Y, Z, R); }
danielk1977c3f9bad2002-05-15 08:30:12 +0000962
963// INSERT
drh3054efe2004-02-12 17:28:13 +0000964trigger_cmd(A) ::= insert_cmd(R) INTO nm(X) inscollist_opt(F)
drh74ad7fe2004-10-07 03:06:28 +0000965 VALUES LP itemlist(Y) RP.
966 {A = sqlite3TriggerInsertStep(&X, F, Y, 0, R);}
danielk1977c3f9bad2002-05-15 08:30:12 +0000967
drh3054efe2004-02-12 17:28:13 +0000968trigger_cmd(A) ::= insert_cmd(R) INTO nm(X) inscollist_opt(F) select(S).
danielk19774adee202004-05-08 08:23:19 +0000969 {A = sqlite3TriggerInsertStep(&X, F, 0, S, R);}
danielk1977c3f9bad2002-05-15 08:30:12 +0000970
971// DELETE
drh5ad1a6c2002-07-01 12:27:09 +0000972trigger_cmd(A) ::= DELETE FROM nm(X) where_opt(Y).
danielk19774adee202004-05-08 08:23:19 +0000973 {A = sqlite3TriggerDeleteStep(&X, Y);}
danielk1977c3f9bad2002-05-15 08:30:12 +0000974
975// SELECT
danielk19774adee202004-05-08 08:23:19 +0000976trigger_cmd(A) ::= select(X). {A = sqlite3TriggerSelectStep(X); }
danielk1977c3f9bad2002-05-15 08:30:12 +0000977
danielk19776f349032002-06-11 02:25:40 +0000978// The special RAISE expression that may occur in trigger programs
drh4b59ab52002-08-24 18:24:51 +0000979expr(A) ::= RAISE(X) LP IGNORE RP(Y). {
danielk19774adee202004-05-08 08:23:19 +0000980 A = sqlite3Expr(TK_RAISE, 0, 0, 0);
drh4b59ab52002-08-24 18:24:51 +0000981 A->iColumn = OE_Ignore;
danielk19774adee202004-05-08 08:23:19 +0000982 sqlite3ExprSpan(A, &X, &Y);
drh4b59ab52002-08-24 18:24:51 +0000983}
drh74ad7fe2004-10-07 03:06:28 +0000984expr(A) ::= RAISE(X) LP raisetype(T) COMMA nm(Z) RP(Y). {
danielk19774adee202004-05-08 08:23:19 +0000985 A = sqlite3Expr(TK_RAISE, 0, 0, &Z);
drh74ad7fe2004-10-07 03:06:28 +0000986 A->iColumn = T;
danielk19774adee202004-05-08 08:23:19 +0000987 sqlite3ExprSpan(A, &X, &Y);
drh4b59ab52002-08-24 18:24:51 +0000988}
drhb7f91642004-10-31 02:22:47 +0000989%endif // !SQLITE_OMIT_TRIGGER
990
drh74ad7fe2004-10-07 03:06:28 +0000991%type raisetype {int}
992raisetype(A) ::= ROLLBACK. {A = OE_Rollback;}
993raisetype(A) ::= ABORT. {A = OE_Abort;}
994raisetype(A) ::= FAIL. {A = OE_Fail;}
995
danielk19776f349032002-06-11 02:25:40 +0000996
danielk1977c3f9bad2002-05-15 08:30:12 +0000997//////////////////////// DROP TRIGGER statement //////////////////////////////
drhb7f91642004-10-31 02:22:47 +0000998%ifndef SQLITE_OMIT_TRIGGER
drh74ad7fe2004-10-07 03:06:28 +0000999cmd ::= DROP TRIGGER fullname(X). {
1000 sqlite3DropTrigger(pParse,X);
danielk1977c3f9bad2002-05-15 08:30:12 +00001001}
drhb7f91642004-10-31 02:22:47 +00001002%endif // !SQLITE_OMIT_TRIGGER
drh113088e2003-03-20 01:16:58 +00001003
1004//////////////////////// ATTACH DATABASE file AS name /////////////////////////
drh4d189ca2004-02-12 18:46:38 +00001005cmd ::= ATTACH database_kw_opt ids(F) AS nm(D) key_opt(K). {
drh25d65432004-07-22 15:02:25 +00001006 sqlite3Attach(pParse, &F, &D, K.type, &K.key);
drh1c2d8412003-03-31 00:30:47 +00001007}
drh25d65432004-07-22 15:02:25 +00001008%type key_opt {struct AttachKey}
1009key_opt(A) ::= . { A.type = 0; }
drh25d65432004-07-22 15:02:25 +00001010key_opt(A) ::= KEY ids(X). { A.type=1; A.key = X; }
drhfeac5f82004-08-01 00:10:45 +00001011key_opt(A) ::= KEY BLOB(X). { A.type=2; A.key = X; }
drh113088e2003-03-20 01:16:58 +00001012
1013database_kw_opt ::= DATABASE.
1014database_kw_opt ::= .
1015
1016//////////////////////// DETACH DATABASE name /////////////////////////////////
drh1c2d8412003-03-31 00:30:47 +00001017cmd ::= DETACH database_kw_opt nm(D). {
danielk19774adee202004-05-08 08:23:19 +00001018 sqlite3Detach(pParse, &D);
drh1c2d8412003-03-31 00:30:47 +00001019}
drh4343fea2004-11-05 23:46:15 +00001020
1021////////////////////////// REINDEX collation //////////////////////////////////
1022%ifndef SQLITE_OMIT_REINDEX
1023cmd ::= REINDEX. {sqlite3Reindex(pParse, 0, 0);}
1024cmd ::= REINDEX nm(X) dbnm(Y). {sqlite3Reindex(pParse, &X, &Y);}
1025%endif
danielk19779fd2a9a2004-11-12 13:42:30 +00001026
drh9f18e8a2005-07-08 12:13:04 +00001027/////////////////////////////////// ANALYZE ///////////////////////////////////
1028%ifndef SQLITE_OMIT_ANALYZE
1029cmd ::= ANALYZE. {sqlite3Analyze(pParse, 0, 0);}
1030cmd ::= ANALYZE nm(X) dbnm(Y). {sqlite3Analyze(pParse, &X, &Y);}
1031%endif
1032
danielk19779fd2a9a2004-11-12 13:42:30 +00001033//////////////////////// ALTER TABLE table ... ////////////////////////////////
1034%ifndef SQLITE_OMIT_ALTERTABLE
1035cmd ::= ALTER TABLE fullname(X) RENAME TO nm(Z). {
1036 sqlite3AlterRenameTable(pParse,X,&Z);
1037}
danielk197719a8e7e2005-03-17 05:03:38 +00001038cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt column(Y). {
1039 sqlite3AlterFinishAddColumn(pParse, &Y);
1040}
1041add_column_fullname ::= fullname(X). {
1042 sqlite3AlterBeginAddColumn(pParse, X);
1043}
1044kwcolumn_opt ::= .
1045kwcolumn_opt ::= COLUMNKW.
danielk19779fd2a9a2004-11-12 13:42:30 +00001046%endif