xref: /sqlite-3.40.0/src/parse.y (revision ffe07b2d)
1348784efSdrh /*
2b19a2bc6Sdrh ** 2001 September 15
3348784efSdrh **
4b19a2bc6Sdrh ** The author disclaims copyright to this source code.  In place of
5b19a2bc6Sdrh ** a legal notice, here is a blessing:
6348784efSdrh **
7b19a2bc6Sdrh **    May you do good and not evil.
8b19a2bc6Sdrh **    May you find forgiveness for yourself and forgive others.
9b19a2bc6Sdrh **    May you share freely, never taking more than you give.
10348784efSdrh **
11348784efSdrh *************************************************************************
12348784efSdrh ** This file contains SQLite's grammar for SQL.  Process this file
13348784efSdrh ** using the lemon parser generator to generate C code that runs
14348784efSdrh ** the parser.  Lemon will also generate a header file containing
15348784efSdrh ** numeric codes for all of the tokens.
16348784efSdrh **
17*ffe07b2dSdrh ** @(#) $Id: parse.y,v 1.181 2005/11/03 00:41:17 drh Exp $
18348784efSdrh */
19487e262fSdrh 
20487e262fSdrh // All token codes are small integers with #defines that begin with "TK_"
21348784efSdrh %token_prefix TK_
22487e262fSdrh 
23487e262fSdrh // The type of the data attached to each token is Token.  This is also the
24487e262fSdrh // default type for non-terminals.
25487e262fSdrh //
26348784efSdrh %token_type {Token}
27f57b14a6Sdrh %default_type {Token}
28487e262fSdrh 
29487e262fSdrh // The generated parser function takes a 4th argument as follows:
30348784efSdrh %extra_argument {Parse *pParse}
31487e262fSdrh 
32487e262fSdrh // This code runs whenever there is a syntax error
33487e262fSdrh //
34348784efSdrh %syntax_error {
35b86ccfb2Sdrh   if( pParse->zErrMsg==0 ){
36b86ccfb2Sdrh     if( TOKEN.z[0] ){
374adee20fSdanielk1977       sqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &TOKEN);
38b86ccfb2Sdrh     }else{
394adee20fSdanielk1977       sqlite3ErrorMsg(pParse, "incomplete SQL statement");
40b86ccfb2Sdrh     }
41b86ccfb2Sdrh   }
42348784efSdrh }
43487e262fSdrh 
44487e262fSdrh // The name of the generated procedure that implements the parser
45487e262fSdrh // is as follows:
464adee20fSdanielk1977 %name sqlite3Parser
47487e262fSdrh 
48487e262fSdrh // The following text is included near the beginning of the C source
49487e262fSdrh // code file that implements the parser.
50487e262fSdrh //
51348784efSdrh %include {
52348784efSdrh #include "sqliteInt.h"
53348784efSdrh #include "parse.h"
549bbca4c1Sdrh 
559bbca4c1Sdrh /*
56ad3cab52Sdrh ** An instance of this structure holds information about the
57ad3cab52Sdrh ** LIMIT clause of a SELECT statement.
589bbca4c1Sdrh */
59ad3cab52Sdrh struct LimitVal {
60a2dc3b1aSdanielk1977   Expr *pLimit;    /* The LIMIT expression.  NULL if there is no limit */
61a2dc3b1aSdanielk1977   Expr *pOffset;   /* The OFFSET expression.  NULL if there is none */
62ad3cab52Sdrh };
63c3f9bad2Sdanielk1977 
64c3f9bad2Sdanielk1977 /*
652e3a1f16Sdrh ** An instance of this structure is used to store the LIKE,
662e3a1f16Sdrh ** GLOB, NOT LIKE, and NOT GLOB operators.
672e3a1f16Sdrh */
682e3a1f16Sdrh struct LikeOp {
69b71090fdSdrh   Token operator;  /* "like" or "glob" or "regexp" */
702e3a1f16Sdrh   int not;         /* True if the NOT keyword is present */
712e3a1f16Sdrh };
722e3a1f16Sdrh 
732e3a1f16Sdrh /*
74ad3cab52Sdrh ** An instance of the following structure describes the event of a
75ad3cab52Sdrh ** TRIGGER.  "a" is the event type, one of TK_UPDATE, TK_INSERT,
76ad3cab52Sdrh ** TK_DELETE, or TK_INSTEAD.  If the event is of the form
77ad3cab52Sdrh **
78ad3cab52Sdrh **      UPDATE ON (a,b,c)
79ad3cab52Sdrh **
80ad3cab52Sdrh ** Then the "b" IdList records the list "a,b,c".
81c3f9bad2Sdanielk1977 */
82ad3cab52Sdrh struct TrigEvent { int a; IdList * b; };
83caec2f12Sdrh 
8425d6543dSdrh /*
8525d6543dSdrh ** An instance of this structure holds the ATTACH key and the key type.
8625d6543dSdrh */
8725d6543dSdrh struct AttachKey { int type;  Token key; };
8825d6543dSdrh 
89caec2f12Sdrh } // end %include
90348784efSdrh 
91348784efSdrh // These are extra tokens used by the lexer but never seen by the
92348784efSdrh // parser.  We put them in a rule so that the parser generator will
936206d50aSdrh // add them to the parse.h output file.
94348784efSdrh //
95c4a3c779Sdrh %nonassoc END_OF_FILE ILLEGAL SPACE UNCLOSED_STRING COMMENT FUNCTION
9613449892Sdrh           COLUMN AGG_FUNCTION AGG_COLUMN CONST_FUNC.
97c4a3c779Sdrh 
98826fb5a3Sdrh // Input is a single SQL command
99c4a3c779Sdrh input ::= cmdlist.
100094b2bbfSdrh cmdlist ::= cmdlist ecmd.
101826fb5a3Sdrh cmdlist ::= ecmd.
10280242055Sdrh cmdx ::= cmd.           { sqlite3FinishCoding(pParse); }
103b7f9164eSdrh ecmd ::= SEMI.
104b7f9164eSdrh ecmd ::= explain cmdx SEMI.
1054adee20fSdanielk1977 explain ::= .           { sqlite3BeginParse(pParse, 0); }
106b7f9164eSdrh %ifndef SQLITE_OMIT_EXPLAIN
107b7f9164eSdrh explain ::= EXPLAIN.              { sqlite3BeginParse(pParse, 1); }
108ecc9242fSdrh explain ::= EXPLAIN QUERY PLAN.   { sqlite3BeginParse(pParse, 2); }
109b7f9164eSdrh %endif
110348784efSdrh 
111382c0247Sdrh ///////////////////// Begin and end transactions. ////////////////////////////
112c4a3c779Sdrh //
113fa86c412Sdrh 
114684917c2Sdrh cmd ::= BEGIN transtype(Y) trans_opt.  {sqlite3BeginTransaction(pParse, Y);}
115c4a3c779Sdrh trans_opt ::= .
116c4a3c779Sdrh trans_opt ::= TRANSACTION.
1175ad1a6c8Sdrh trans_opt ::= TRANSACTION nm.
118684917c2Sdrh %type transtype {int}
119684917c2Sdrh transtype(A) ::= .             {A = TK_DEFERRED;}
120684917c2Sdrh transtype(A) ::= DEFERRED(X).  {A = @X;}
121684917c2Sdrh transtype(A) ::= IMMEDIATE(X). {A = @X;}
122684917c2Sdrh transtype(A) ::= EXCLUSIVE(X). {A = @X;}
1234adee20fSdanielk1977 cmd ::= COMMIT trans_opt.      {sqlite3CommitTransaction(pParse);}
1244adee20fSdanielk1977 cmd ::= END trans_opt.         {sqlite3CommitTransaction(pParse);}
1254adee20fSdanielk1977 cmd ::= ROLLBACK trans_opt.    {sqlite3RollbackTransaction(pParse);}
126c4a3c779Sdrh 
127382c0247Sdrh ///////////////////// The CREATE TABLE statement ////////////////////////////
128348784efSdrh //
129348784efSdrh cmd ::= create_table create_table_args.
130cbb18d22Sdanielk1977 create_table ::= CREATE(X) temp(T) TABLE nm(Y) dbnm(Z). {
131cbb18d22Sdanielk1977    sqlite3StartTable(pParse,&X,&Y,&Z,T,0);
132969fa7c1Sdrh }
133f57b3399Sdrh %type temp {int}
13453c0f748Sdanielk1977 %ifndef SQLITE_OMIT_TEMPDB
135d24cc427Sdrh temp(A) ::= TEMP.  {A = 1;}
13653c0f748Sdanielk1977 %endif
137d24cc427Sdrh temp(A) ::= .      {A = 0;}
13819a8e7e8Sdanielk1977 create_table_args ::= LP columnlist conslist_opt(X) RP(Y). {
13919a8e7e8Sdanielk1977   sqlite3EndTable(pParse,&X,&Y,0);
140969fa7c1Sdrh }
141969fa7c1Sdrh create_table_args ::= AS select(S). {
14219a8e7e8Sdanielk1977   sqlite3EndTable(pParse,0,0,S);
1434adee20fSdanielk1977   sqlite3SelectDelete(S);
144969fa7c1Sdrh }
145348784efSdrh columnlist ::= columnlist COMMA column.
146348784efSdrh columnlist ::= column.
147348784efSdrh 
148487e262fSdrh // A "column" is a complete description of a single column in a
149487e262fSdrh // CREATE TABLE statement.  This includes the column name, its
150487e262fSdrh // datatype, and other keywords such as PRIMARY KEY, UNIQUE, REFERENCES,
151487e262fSdrh // NOT NULL and so forth.
152348784efSdrh //
15319a8e7e8Sdanielk1977 column(A) ::= columnid(X) type carglist. {
15419a8e7e8Sdanielk1977   A.z = X.z;
15519a8e7e8Sdanielk1977   A.n = (pParse->sLastToken.z-X.z) + pParse->sLastToken.n;
15619a8e7e8Sdanielk1977 }
15719a8e7e8Sdanielk1977 columnid(A) ::= nm(X). {
15819a8e7e8Sdanielk1977   sqlite3AddColumn(pParse,&X);
15919a8e7e8Sdanielk1977   A = X;
16019a8e7e8Sdanielk1977 }
16119a8e7e8Sdanielk1977 
162c4a3c779Sdrh 
163c4a3c779Sdrh // An IDENTIFIER can be a generic identifier, or one of several
164c4a3c779Sdrh // keywords.  Any non-standard keyword can also be an identifier.
165c4a3c779Sdrh //
166982cef7eSdrh %type id {Token}
167f18543caSdrh id(A) ::= ID(X).         {A = X;}
1680bd1f4eaSdrh 
16934e33bb8Sdrh // The following directive causes tokens ABORT, AFTER, ASC, etc. to
17034e33bb8Sdrh // fallback to ID if they will not parse as their original value.
17134e33bb8Sdrh // This obviates the need for the "id" nonterminal.
17234e33bb8Sdrh //
1730bd1f4eaSdrh %fallback ID
1749f18e8a0Sdrh   ABORT AFTER ANALYZE ASC ATTACH BEFORE BEGIN CASCADE CAST CONFLICT
175684917c2Sdrh   DATABASE DEFERRED DESC DETACH EACH END EXCLUSIVE EXPLAIN FAIL FOR
176ecc9242fSdrh   IGNORE IMMEDIATE INITIALLY INSTEAD LIKE_KW MATCH PLAN QUERY KEY
1775ad1a6c8Sdrh   OF OFFSET PRAGMA RAISE REPLACE RESTRICT ROW STATEMENT
178b7f9164eSdrh   TEMP TRIGGER VACUUM VIEW
179b7f9164eSdrh %ifdef SQLITE_OMIT_COMPOUND_SELECT
180b7f9164eSdrh   EXCEPT INTERSECT UNION
181b7f9164eSdrh %endif
182b71090fdSdrh   REINDEX RENAME CTIME_KW ALTER
183b7f9164eSdrh   .
184c4a3c779Sdrh 
1852d3917daSdrh // Define operator precedence early so that this is the first occurance
1862d3917daSdrh // of the operator tokens in the grammer.  Keeping the operators together
1872d3917daSdrh // causes them to be assigned integer values that are close together,
1882d3917daSdrh // which keeps parser tables smaller.
1892d3917daSdrh //
190f2bc013cSdrh // The token values assigned to these symbols is determined by the order
191f2bc013cSdrh // in which lemon first sees them.  It must be the case that ISNULL/NOTNULL,
192f2bc013cSdrh // NE/EQ, GT/LE, and GE/LT are separated by only a single value.  See
193f2bc013cSdrh // the sqlite3ExprIfFalse() routine for additional information on this
194f2bc013cSdrh // constraint.
195f2bc013cSdrh //
1962d3917daSdrh %left OR.
1972d3917daSdrh %left AND.
1982d3917daSdrh %right NOT.
199b71090fdSdrh %left IS LIKE_KW BETWEEN IN ISNULL NOTNULL NE EQ.
2009a43267bSdrh %left GT LE LT GE.
2017c6303c0Sdanielk1977 %right ESCAPE.
2022d3917daSdrh %left BITAND BITOR LSHIFT RSHIFT.
2032d3917daSdrh %left PLUS MINUS.
2042d3917daSdrh %left STAR SLASH REM.
2052d3917daSdrh %left CONCAT.
2062d3917daSdrh %right UMINUS UPLUS BITNOT.
2072d3917daSdrh 
208c4a3c779Sdrh // And "ids" is an identifer-or-string.
209c4a3c779Sdrh //
210c4a3c779Sdrh %type ids {Token}
2115ad1a6c8Sdrh ids(A) ::= ID(X).        {A = X;}
212c4a3c779Sdrh ids(A) ::= STRING(X).    {A = X;}
213c4a3c779Sdrh 
2145ad1a6c8Sdrh // The name of a column or table can be any of the following:
2155ad1a6c8Sdrh //
2165ad1a6c8Sdrh %type nm {Token}
2175ad1a6c8Sdrh nm(A) ::= ID(X).         {A = X;}
2185ad1a6c8Sdrh nm(A) ::= STRING(X).     {A = X;}
2195ad1a6c8Sdrh nm(A) ::= JOIN_KW(X).    {A = X;}
2205ad1a6c8Sdrh 
221487e262fSdrh // A typetoken is really one or more tokens that form a type name such
222487e262fSdrh // as can be found after the column name in a CREATE TABLE statement.
223487e262fSdrh // Multiple tokens are concatenated to form the value of the typetoken.
224487e262fSdrh //
225487e262fSdrh %type typetoken {Token}
226382c0247Sdrh type ::= .
227487e262fSdrh type ::= typetoken(X).                   {sqlite3AddColumnType(pParse,&X);}
228487e262fSdrh typetoken(A) ::= typename(X).   {A = X;}
229487e262fSdrh typetoken(A) ::= typename(X) LP signed RP(Y). {
230487e262fSdrh   A.z = X.z;
231487e262fSdrh   A.n = &Y.z[Y.n] - X.z;
232487e262fSdrh }
233487e262fSdrh typetoken(A) ::= typename(X) LP signed COMMA signed RP(Y). {
234487e262fSdrh   A.z = X.z;
235487e262fSdrh   A.n = &Y.z[Y.n] - X.z;
236487e262fSdrh }
237382c0247Sdrh %type typename {Token}
238382c0247Sdrh typename(A) ::= ids(X).             {A = X;}
239596bd235Sdrh typename(A) ::= typename(X) ids(Y). {A.z=X.z; A.n=Y.n+(Y.z-X.z);}
240ef0cae50Sdrh %type signed {int}
24174ad7fe9Sdrh signed(A) ::= plus_num(X).    { A = atoi(X.z); }
24274ad7fe9Sdrh signed(A) ::= minus_num(X).   { A = -atoi(X.z); }
243487e262fSdrh 
244487e262fSdrh // "carglist" is a list of additional constraints that come after the
245487e262fSdrh // column name and column type in a CREATE TABLE statement.
246487e262fSdrh //
247348784efSdrh carglist ::= carglist carg.
248348784efSdrh carglist ::= .
2495ad1a6c8Sdrh carg ::= CONSTRAINT nm ccons.
250348784efSdrh carg ::= ccons.
2517977a17fSdanielk1977 carg ::= DEFAULT term(X).            {sqlite3AddDefaultValue(pParse,X);}
252eb55bd2fSdrh carg ::= DEFAULT LP expr(X) RP.      {sqlite3AddDefaultValue(pParse,X);}
2537977a17fSdanielk1977 carg ::= DEFAULT PLUS term(X).       {sqlite3AddDefaultValue(pParse,X);}
2547977a17fSdanielk1977 carg ::= DEFAULT MINUS term(X).      {
2557977a17fSdanielk1977   Expr *p = sqlite3Expr(TK_UMINUS, X, 0, 0);
2567977a17fSdanielk1977   sqlite3AddDefaultValue(pParse,p);
2577977a17fSdanielk1977 }
2587977a17fSdanielk1977 carg ::= DEFAULT id(X).              {
2597977a17fSdanielk1977   Expr *p = sqlite3Expr(TK_STRING, 0, 0, &X);
2607977a17fSdanielk1977   sqlite3AddDefaultValue(pParse,p);
2617977a17fSdanielk1977 }
262348784efSdrh 
263382c0247Sdrh // In addition to the type name, we also care about the primary key and
264382c0247Sdrh // UNIQUE constraints.
265348784efSdrh //
2660d316a40Sdrh ccons ::= NULL onconf.
2674adee20fSdanielk1977 ccons ::= NOT NULL onconf(R).               {sqlite3AddNotNull(pParse, R);}
268205f48e6Sdrh ccons ::= PRIMARY KEY sortorder onconf(R) autoinc(I).
269205f48e6Sdrh                                      {sqlite3AddPrimaryKey(pParse,0,R,I);}
270cbb18d22Sdanielk1977 ccons ::= UNIQUE onconf(R).          {sqlite3CreateIndex(pParse,0,0,0,0,R,0,0);}
271*ffe07b2dSdrh ccons ::= CHECK LP expr(X) RP.       {sqlite3AddCheckConstraint(pParse, X);}
272c2eef3b3Sdrh ccons ::= REFERENCES nm(T) idxlist_opt(TA) refargs(R).
2734adee20fSdanielk1977                                 {sqlite3CreateForeignKey(pParse,0,&T,TA,R);}
2744adee20fSdanielk1977 ccons ::= defer_subclause(D).   {sqlite3DeferForeignKey(pParse,D);}
275d3d39e93Sdrh ccons ::= COLLATE id(C).  {sqlite3AddCollateType(pParse, C.z, C.n);}
27604738cb9Sdrh 
277205f48e6Sdrh // The optional AUTOINCREMENT keyword
278205f48e6Sdrh %type autoinc {int}
279205f48e6Sdrh autoinc(X) ::= .          {X = 0;}
2802958a4e6Sdrh autoinc(X) ::= AUTOINCR.  {X = 1;}
281205f48e6Sdrh 
282c2eef3b3Sdrh // The next group of rules parses the arguments to a REFERENCES clause
283c2eef3b3Sdrh // that determine if the referential integrity checking is deferred or
284c2eef3b3Sdrh // or immediate and which determine what action to take if a ref-integ
285c2eef3b3Sdrh // check fails.
28604738cb9Sdrh //
287c2eef3b3Sdrh %type refargs {int}
288c2eef3b3Sdrh refargs(A) ::= .                     { A = OE_Restrict * 0x010101; }
289c2eef3b3Sdrh refargs(A) ::= refargs(X) refarg(Y). { A = (X & Y.mask) | Y.value; }
290c2eef3b3Sdrh %type refarg {struct {int value; int mask;}}
291c2eef3b3Sdrh refarg(A) ::= MATCH nm.              { A.value = 0;     A.mask = 0x000000; }
292c2eef3b3Sdrh refarg(A) ::= ON DELETE refact(X).   { A.value = X;     A.mask = 0x0000ff; }
293c2eef3b3Sdrh refarg(A) ::= ON UPDATE refact(X).   { A.value = X<<8;  A.mask = 0x00ff00; }
294c2eef3b3Sdrh refarg(A) ::= ON INSERT refact(X).   { A.value = X<<16; A.mask = 0xff0000; }
295c2eef3b3Sdrh %type refact {int}
296c2eef3b3Sdrh refact(A) ::= SET NULL.              { A = OE_SetNull; }
297c2eef3b3Sdrh refact(A) ::= SET DEFAULT.           { A = OE_SetDflt; }
298c2eef3b3Sdrh refact(A) ::= CASCADE.               { A = OE_Cascade; }
299c2eef3b3Sdrh refact(A) ::= RESTRICT.              { A = OE_Restrict; }
300c2eef3b3Sdrh %type defer_subclause {int}
301c2eef3b3Sdrh defer_subclause(A) ::= NOT DEFERRABLE init_deferred_pred_opt(X).  {A = X;}
302c2eef3b3Sdrh defer_subclause(A) ::= DEFERRABLE init_deferred_pred_opt(X).      {A = X;}
303c2eef3b3Sdrh %type init_deferred_pred_opt {int}
304c2eef3b3Sdrh init_deferred_pred_opt(A) ::= .                       {A = 0;}
305c2eef3b3Sdrh init_deferred_pred_opt(A) ::= INITIALLY DEFERRED.     {A = 1;}
306c2eef3b3Sdrh init_deferred_pred_opt(A) ::= INITIALLY IMMEDIATE.    {A = 0;}
307348784efSdrh 
308348784efSdrh // For the time being, the only constraint we care about is the primary
309382c0247Sdrh // key and UNIQUE.  Both create indices.
310348784efSdrh //
31119a8e7e8Sdanielk1977 conslist_opt(A) ::= .                   {A.n = 0; A.z = 0;}
31219a8e7e8Sdanielk1977 conslist_opt(A) ::= COMMA(X) conslist.  {A = X;}
313348784efSdrh conslist ::= conslist COMMA tcons.
314a2e1bb5aSdrh conslist ::= conslist tcons.
315348784efSdrh conslist ::= tcons.
3165ad1a6c8Sdrh tcons ::= CONSTRAINT nm.
317f3388144Sdrh tcons ::= PRIMARY KEY LP idxlist(X) autoinc(I) RP onconf(R).
318205f48e6Sdrh                                          {sqlite3AddPrimaryKey(pParse,X,R,I);}
3199cfcf5d4Sdrh tcons ::= UNIQUE LP idxlist(X) RP onconf(R).
320cbb18d22Sdanielk1977                                        {sqlite3CreateIndex(pParse,0,0,0,X,R,0,0);}
3219cfcf5d4Sdrh tcons ::= CHECK expr onconf.
322c2eef3b3Sdrh tcons ::= FOREIGN KEY LP idxlist(FA) RP
323c2eef3b3Sdrh           REFERENCES nm(T) idxlist_opt(TA) refargs(R) defer_subclause_opt(D). {
3244adee20fSdanielk1977     sqlite3CreateForeignKey(pParse, FA, &T, TA, R);
3254adee20fSdanielk1977     sqlite3DeferForeignKey(pParse, D);
326c2eef3b3Sdrh }
327c2eef3b3Sdrh %type defer_subclause_opt {int}
328c2eef3b3Sdrh defer_subclause_opt(A) ::= .                    {A = 0;}
329c2eef3b3Sdrh defer_subclause_opt(A) ::= defer_subclause(X).  {A = X;}
3309cfcf5d4Sdrh 
3319cfcf5d4Sdrh // The following is a non-standard extension that allows us to declare the
3329cfcf5d4Sdrh // default behavior when there is a constraint conflict.
3339cfcf5d4Sdrh //
3349cfcf5d4Sdrh %type onconf {int}
3351c92853dSdrh %type orconf {int}
3361c92853dSdrh %type resolvetype {int}
3371c92853dSdrh onconf(A) ::= .                              {A = OE_Default;}
3381c92853dSdrh onconf(A) ::= ON CONFLICT resolvetype(X).    {A = X;}
3391c92853dSdrh orconf(A) ::= .                              {A = OE_Default;}
3401c92853dSdrh orconf(A) ::= OR resolvetype(X).             {A = X;}
34174ad7fe9Sdrh resolvetype(A) ::= raisetype(X).             {A = X;}
3421c92853dSdrh resolvetype(A) ::= IGNORE.                   {A = OE_Ignore;}
3431c92853dSdrh resolvetype(A) ::= REPLACE.                  {A = OE_Replace;}
344348784efSdrh 
345382c0247Sdrh ////////////////////////// The DROP TABLE /////////////////////////////////////
346348784efSdrh //
34774ad7fe9Sdrh cmd ::= DROP TABLE fullname(X). {
34874ad7fe9Sdrh   sqlite3DropTable(pParse, X, 0);
349a8858103Sdanielk1977 }
350348784efSdrh 
351a76b5dfcSdrh ///////////////////// The CREATE VIEW statement /////////////////////////////
352a76b5dfcSdrh //
353b7f9164eSdrh %ifndef SQLITE_OMIT_VIEW
35448dec7e2Sdanielk1977 cmd ::= CREATE(X) temp(T) VIEW nm(Y) dbnm(Z) AS select(S). {
35548dec7e2Sdanielk1977   sqlite3CreateView(pParse, &X, &Y, &Z, S, T);
356a76b5dfcSdrh }
35774ad7fe9Sdrh cmd ::= DROP VIEW fullname(X). {
35874ad7fe9Sdrh   sqlite3DropTable(pParse, X, 1);
359a76b5dfcSdrh }
360b7f9164eSdrh %endif // SQLITE_OMIT_VIEW
361a76b5dfcSdrh 
362382c0247Sdrh //////////////////////// The SELECT statement /////////////////////////////////
363348784efSdrh //
3649bb61fe7Sdrh cmd ::= select(X).  {
365b3bce662Sdanielk1977   sqlite3Select(pParse, X, SRT_Callback, 0, 0, 0, 0, 0);
3664adee20fSdanielk1977   sqlite3SelectDelete(X);
3679bb61fe7Sdrh }
368efb7251dSdrh 
3699bb61fe7Sdrh %type select {Select*}
3704adee20fSdanielk1977 %destructor select {sqlite3SelectDelete($$);}
37182c3d636Sdrh %type oneselect {Select*}
3724adee20fSdanielk1977 %destructor oneselect {sqlite3SelectDelete($$);}
3739bb61fe7Sdrh 
37482c3d636Sdrh select(A) ::= oneselect(X).                      {A = X;}
375b7f9164eSdrh %ifndef SQLITE_OMIT_COMPOUND_SELECT
3760a36c57eSdrh select(A) ::= select(X) multiselect_op(Y) oneselect(Z).  {
377daffd0e5Sdrh   if( Z ){
37882c3d636Sdrh     Z->op = Y;
37982c3d636Sdrh     Z->pPrior = X;
380daffd0e5Sdrh   }
38182c3d636Sdrh   A = Z;
38282c3d636Sdrh }
3830a36c57eSdrh %type multiselect_op {int}
38474ad7fe9Sdrh multiselect_op(A) ::= UNION(OP).      {A = @OP;}
3850a36c57eSdrh multiselect_op(A) ::= UNION ALL.      {A = TK_ALL;}
38674ad7fe9Sdrh multiselect_op(A) ::= INTERSECT(OP).  {A = @OP;}
38774ad7fe9Sdrh multiselect_op(A) ::= EXCEPT(OP).     {A = @OP;}
388b7f9164eSdrh %endif // SQLITE_OMIT_COMPOUND_SELECT
38982c3d636Sdrh oneselect(A) ::= SELECT distinct(D) selcollist(W) from(X) where_opt(Y)
3909bbca4c1Sdrh                  groupby_opt(P) having_opt(Q) orderby_opt(Z) limit_opt(L). {
391a2dc3b1aSdanielk1977   A = sqlite3SelectNew(W,X,Y,P,Q,Z,D,L.pLimit,L.pOffset);
3929bb61fe7Sdrh }
3939bb61fe7Sdrh 
3949bb61fe7Sdrh // The "distinct" nonterminal is true (1) if the DISTINCT keyword is
3959bb61fe7Sdrh // present and false (0) if it is not.
3969bb61fe7Sdrh //
397efb7251dSdrh %type distinct {int}
398efb7251dSdrh distinct(A) ::= DISTINCT.   {A = 1;}
399fef5208cSdrh distinct(A) ::= ALL.        {A = 0;}
400efb7251dSdrh distinct(A) ::= .           {A = 0;}
401348784efSdrh 
4029bb61fe7Sdrh // selcollist is a list of expressions that are to become the return
4037c917d19Sdrh // values of the SELECT statement.  The "*" in statements like
4047c917d19Sdrh // "SELECT * FROM ..." is encoded as a special expression with an
4057c917d19Sdrh // opcode of TK_ALL.
4069bb61fe7Sdrh //
407348784efSdrh %type selcollist {ExprList*}
4084adee20fSdanielk1977 %destructor selcollist {sqlite3ExprListDelete($$);}
409348784efSdrh %type sclp {ExprList*}
4104adee20fSdanielk1977 %destructor sclp {sqlite3ExprListDelete($$);}
411348784efSdrh sclp(A) ::= selcollist(X) COMMA.             {A = X;}
412348784efSdrh sclp(A) ::= .                                {A = 0;}
41301f3f253Sdrh selcollist(A) ::= sclp(P) expr(X) as(Y).     {
4144adee20fSdanielk1977    A = sqlite3ExprListAppend(P,X,Y.n?&Y:0);
41501f3f253Sdrh }
4167c917d19Sdrh selcollist(A) ::= sclp(P) STAR. {
4174adee20fSdanielk1977   A = sqlite3ExprListAppend(P, sqlite3Expr(TK_ALL, 0, 0, 0), 0);
4187c917d19Sdrh }
4195ad1a6c8Sdrh selcollist(A) ::= sclp(P) nm(X) DOT STAR. {
4204adee20fSdanielk1977   Expr *pRight = sqlite3Expr(TK_ALL, 0, 0, 0);
4214adee20fSdanielk1977   Expr *pLeft = sqlite3Expr(TK_ID, 0, 0, &X);
4224adee20fSdanielk1977   A = sqlite3ExprListAppend(P, sqlite3Expr(TK_DOT, pLeft, pRight, 0), 0);
42354473229Sdrh }
42401f3f253Sdrh 
42501f3f253Sdrh // An option "AS <id>" phrase that can follow one of the expressions that
42601f3f253Sdrh // define the result set, or one of the tables in the FROM clause.
42701f3f253Sdrh //
42801f3f253Sdrh %type as {Token}
4295ad1a6c8Sdrh as(X) ::= AS nm(Y).    {X = Y;}
4305ad1a6c8Sdrh as(X) ::= ids(Y).      {X = Y;}
43101f3f253Sdrh as(X) ::= .            {X.n = 0;}
4329bb61fe7Sdrh 
433348784efSdrh 
434ad3cab52Sdrh %type seltablist {SrcList*}
4354adee20fSdanielk1977 %destructor seltablist {sqlite3SrcListDelete($$);}
436ad3cab52Sdrh %type stl_prefix {SrcList*}
4374adee20fSdanielk1977 %destructor stl_prefix {sqlite3SrcListDelete($$);}
438ad3cab52Sdrh %type from {SrcList*}
4394adee20fSdanielk1977 %destructor from {sqlite3SrcListDelete($$);}
440348784efSdrh 
44101f3f253Sdrh // A complete FROM clause.
44201f3f253Sdrh //
443bf3a4fa4Sdrh from(A) ::= .                                 {A = sqliteMalloc(sizeof(*A));}
444348784efSdrh from(A) ::= FROM seltablist(X).               {A = X;}
44501f3f253Sdrh 
44601f3f253Sdrh // "seltablist" is a "Select Table List" - the content of the FROM clause
44701f3f253Sdrh // in a SELECT statement.  "stl_prefix" is a prefix of this list.
44801f3f253Sdrh //
44901f3f253Sdrh stl_prefix(A) ::= seltablist(X) joinop(Y).    {
45001f3f253Sdrh    A = X;
45101f3f253Sdrh    if( A && A->nSrc>0 ) A->a[A->nSrc-1].jointype = Y;
45201f3f253Sdrh }
453348784efSdrh stl_prefix(A) ::= .                           {A = 0;}
454113088ecSdrh seltablist(A) ::= stl_prefix(X) nm(Y) dbnm(D) as(Z) on_opt(N) using_opt(U). {
4554adee20fSdanielk1977   A = sqlite3SrcListAppend(X,&Y,&D);
4564adee20fSdanielk1977   if( Z.n ) sqlite3SrcListAddAlias(A,&Z);
45701f3f253Sdrh   if( N ){
45801f3f253Sdrh     if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pOn = N; }
4594adee20fSdanielk1977     else { sqlite3ExprDelete(N); }
460c4a3c779Sdrh   }
46101f3f253Sdrh   if( U ){
46201f3f253Sdrh     if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pUsing = U; }
4634adee20fSdanielk1977     else { sqlite3IdListDelete(U); }
46401f3f253Sdrh   }
46501f3f253Sdrh }
46651522cd3Sdrh %ifndef SQLITE_OMIT_SUBQUERY
467b733d037Sdrh   seltablist(A) ::= stl_prefix(X) LP seltablist_paren(S) RP
468b733d037Sdrh                     as(Z) on_opt(N) using_opt(U). {
4694adee20fSdanielk1977     A = sqlite3SrcListAppend(X,0,0);
470ad3cab52Sdrh     A->a[A->nSrc-1].pSelect = S;
4714adee20fSdanielk1977     if( Z.n ) sqlite3SrcListAddAlias(A,&Z);
47201f3f253Sdrh     if( N ){
47301f3f253Sdrh       if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pOn = N; }
4744adee20fSdanielk1977       else { sqlite3ExprDelete(N); }
47522f70c32Sdrh     }
47601f3f253Sdrh     if( U ){
47701f3f253Sdrh       if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pUsing = U; }
4784adee20fSdanielk1977       else { sqlite3IdListDelete(U); }
479d5feede1Sdrh     }
48022f70c32Sdrh   }
481348784efSdrh 
482b733d037Sdrh  // A seltablist_paren nonterminal represents anything in a FROM that
483b733d037Sdrh   // is contained inside parentheses.  This can be either a subquery or
484b733d037Sdrh   // a grouping of table and subqueries.
485b733d037Sdrh   //
486b733d037Sdrh   %type seltablist_paren {Select*}
4874adee20fSdanielk1977   %destructor seltablist_paren {sqlite3SelectDelete($$);}
488b733d037Sdrh   seltablist_paren(A) ::= select(S).      {A = S;}
489b733d037Sdrh   seltablist_paren(A) ::= seltablist(F).  {
490a2dc3b1aSdanielk1977      A = sqlite3SelectNew(0,F,0,0,0,0,0,0,0);
491b733d037Sdrh   }
49251522cd3Sdrh %endif // SQLITE_OMIT_SUBQUERY
493b733d037Sdrh 
494113088ecSdrh %type dbnm {Token}
495113088ecSdrh dbnm(A) ::= .          {A.z=0; A.n=0;}
496113088ecSdrh dbnm(A) ::= DOT nm(X). {A = X;}
497113088ecSdrh 
49874ad7fe9Sdrh %type fullname {SrcList*}
49974ad7fe9Sdrh %destructor fullname {sqlite3SrcListDelete($$);}
50074ad7fe9Sdrh fullname(A) ::= nm(X) dbnm(Y).  {A = sqlite3SrcListAppend(0,&X,&Y);}
50174ad7fe9Sdrh 
50201f3f253Sdrh %type joinop {int}
50301f3f253Sdrh %type joinop2 {int}
50401f3f253Sdrh joinop(X) ::= COMMA.                   { X = JT_INNER; }
50501f3f253Sdrh joinop(X) ::= JOIN.                    { X = JT_INNER; }
5064adee20fSdanielk1977 joinop(X) ::= JOIN_KW(A) JOIN.         { X = sqlite3JoinType(pParse,&A,0,0); }
5074adee20fSdanielk1977 joinop(X) ::= JOIN_KW(A) nm(B) JOIN.   { X = sqlite3JoinType(pParse,&A,&B,0); }
5085ad1a6c8Sdrh joinop(X) ::= JOIN_KW(A) nm(B) nm(C) JOIN.
5094adee20fSdanielk1977                                        { X = sqlite3JoinType(pParse,&A,&B,&C); }
51001f3f253Sdrh 
51101f3f253Sdrh %type on_opt {Expr*}
5124adee20fSdanielk1977 %destructor on_opt {sqlite3ExprDelete($$);}
51301f3f253Sdrh on_opt(N) ::= ON expr(E).   {N = E;}
51401f3f253Sdrh on_opt(N) ::= .             {N = 0;}
51501f3f253Sdrh 
51601f3f253Sdrh %type using_opt {IdList*}
5174adee20fSdanielk1977 %destructor using_opt {sqlite3IdListDelete($$);}
5180202b29eSdanielk1977 using_opt(U) ::= USING LP inscollist(L) RP.  {U = L;}
51901f3f253Sdrh using_opt(U) ::= .                        {U = 0;}
52001f3f253Sdrh 
52101f3f253Sdrh 
522348784efSdrh %type orderby_opt {ExprList*}
5234adee20fSdanielk1977 %destructor orderby_opt {sqlite3ExprListDelete($$);}
524348784efSdrh %type sortlist {ExprList*}
5254adee20fSdanielk1977 %destructor sortlist {sqlite3ExprListDelete($$);}
526348784efSdrh %type sortitem {Expr*}
5274adee20fSdanielk1977 %destructor sortitem {sqlite3ExprDelete($$);}
528348784efSdrh 
529348784efSdrh orderby_opt(A) ::= .                          {A = 0;}
530348784efSdrh orderby_opt(A) ::= ORDER BY sortlist(X).      {A = X;}
5318e2ca029Sdrh sortlist(A) ::= sortlist(X) COMMA sortitem(Y) collate(C) sortorder(Z). {
5321186b0a0Sdrh   A = sqlite3ExprListAppend(X,Y,C.n>0?&C:0);
533d3d39e93Sdrh   if( A ) A->a[A->nExpr-1].sortOrder = Z;
534348784efSdrh }
53538640e15Sdrh sortlist(A) ::= sortitem(Y) collate(C) sortorder(Z). {
5361186b0a0Sdrh   A = sqlite3ExprListAppend(0,Y,C.n>0?&C:0);
53796fb0dd5Sdanielk1977   if( A && A->a ) A->a[0].sortOrder = Z;
538348784efSdrh }
539da9d6c45Sdrh sortitem(A) ::= expr(X).   {A = X;}
540348784efSdrh 
541348784efSdrh %type sortorder {int}
542d3d39e93Sdrh %type collate {Token}
543348784efSdrh 
5448e2ca029Sdrh sortorder(A) ::= ASC.           {A = SQLITE_SO_ASC;}
5458e2ca029Sdrh sortorder(A) ::= DESC.          {A = SQLITE_SO_DESC;}
5468e2ca029Sdrh sortorder(A) ::= .              {A = SQLITE_SO_ASC;}
547d3d39e93Sdrh collate(C) ::= .                {C.z = 0; C.n = 0;}
548d3d39e93Sdrh collate(C) ::= COLLATE id(X).   {C = X;}
549348784efSdrh 
5502282792aSdrh %type groupby_opt {ExprList*}
5514adee20fSdanielk1977 %destructor groupby_opt {sqlite3ExprListDelete($$);}
5522282792aSdrh groupby_opt(A) ::= .                      {A = 0;}
5532282792aSdrh groupby_opt(A) ::= GROUP BY exprlist(X).  {A = X;}
5542282792aSdrh 
5552282792aSdrh %type having_opt {Expr*}
5564adee20fSdanielk1977 %destructor having_opt {sqlite3ExprDelete($$);}
5572282792aSdrh having_opt(A) ::= .                {A = 0;}
5582282792aSdrh having_opt(A) ::= HAVING expr(X).  {A = X;}
5592282792aSdrh 
560ad3cab52Sdrh %type limit_opt {struct LimitVal}
561a2dc3b1aSdanielk1977 %destructor limit_opt {
562a2dc3b1aSdanielk1977   sqlite3ExprDelete($$.pLimit);
563a2dc3b1aSdanielk1977   sqlite3ExprDelete($$.pOffset);
564a2dc3b1aSdanielk1977 }
565a2dc3b1aSdanielk1977 limit_opt(A) ::= .                     {A.pLimit = 0; A.pOffset = 0;}
566a2dc3b1aSdanielk1977 limit_opt(A) ::= LIMIT expr(X).        {A.pLimit = X; A.pOffset = 0;}
567a2dc3b1aSdanielk1977 limit_opt(A) ::= LIMIT expr(X) OFFSET expr(Y).
568a2dc3b1aSdanielk1977                                        {A.pLimit = X; A.pOffset = Y;}
569a2dc3b1aSdanielk1977 limit_opt(A) ::= LIMIT expr(X) COMMA expr(Y).
570a2dc3b1aSdanielk1977                                        {A.pOffset = X; A.pLimit = Y;}
5719bbca4c1Sdrh 
572382c0247Sdrh /////////////////////////// The DELETE statement /////////////////////////////
573382c0247Sdrh //
57474ad7fe9Sdrh cmd ::= DELETE FROM fullname(X) where_opt(Y). {sqlite3DeleteFrom(pParse,X,Y);}
575348784efSdrh 
576348784efSdrh %type where_opt {Expr*}
5774adee20fSdanielk1977 %destructor where_opt {sqlite3ExprDelete($$);}
578348784efSdrh 
579348784efSdrh where_opt(A) ::= .                    {A = 0;}
580348784efSdrh where_opt(A) ::= WHERE expr(X).       {A = X;}
581348784efSdrh 
582382c0247Sdrh ////////////////////////// The UPDATE command ////////////////////////////////
583382c0247Sdrh //
58474ad7fe9Sdrh cmd ::= UPDATE orconf(R) fullname(X) SET setlist(Y) where_opt(Z).
58574ad7fe9Sdrh     {sqlite3Update(pParse,X,Y,Z,R);}
586348784efSdrh 
587f8db1bc0Sdrh %type setlist {ExprList*}
588f8db1bc0Sdrh %destructor setlist {sqlite3ExprListDelete($$);}
589f8db1bc0Sdrh 
5905ad1a6c8Sdrh setlist(A) ::= setlist(Z) COMMA nm(X) EQ expr(Y).
5914adee20fSdanielk1977     {A = sqlite3ExprListAppend(Z,Y,&X);}
5924adee20fSdanielk1977 setlist(A) ::= nm(X) EQ expr(Y).   {A = sqlite3ExprListAppend(0,Y,&X);}
593348784efSdrh 
594382c0247Sdrh ////////////////////////// The INSERT command /////////////////////////////////
595382c0247Sdrh //
59674ad7fe9Sdrh cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F)
597113088ecSdrh         VALUES LP itemlist(Y) RP.
59874ad7fe9Sdrh             {sqlite3Insert(pParse, X, Y, 0, F, R);}
59974ad7fe9Sdrh cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F) select(S).
60074ad7fe9Sdrh             {sqlite3Insert(pParse, X, 0, S, F, R);}
601348784efSdrh 
602fa86c412Sdrh %type insert_cmd {int}
603fa86c412Sdrh insert_cmd(A) ::= INSERT orconf(R).   {A = R;}
604fa86c412Sdrh insert_cmd(A) ::= REPLACE.            {A = OE_Replace;}
605fa86c412Sdrh 
606348784efSdrh 
607348784efSdrh %type itemlist {ExprList*}
6084adee20fSdanielk1977 %destructor itemlist {sqlite3ExprListDelete($$);}
609348784efSdrh 
6104adee20fSdanielk1977 itemlist(A) ::= itemlist(X) COMMA expr(Y).  {A = sqlite3ExprListAppend(X,Y,0);}
6114adee20fSdanielk1977 itemlist(A) ::= expr(X).                    {A = sqlite3ExprListAppend(0,X,0);}
612348784efSdrh 
613967e8b73Sdrh %type inscollist_opt {IdList*}
6144adee20fSdanielk1977 %destructor inscollist_opt {sqlite3IdListDelete($$);}
615967e8b73Sdrh %type inscollist {IdList*}
6164adee20fSdanielk1977 %destructor inscollist {sqlite3IdListDelete($$);}
617348784efSdrh 
618967e8b73Sdrh inscollist_opt(A) ::= .                       {A = 0;}
619967e8b73Sdrh inscollist_opt(A) ::= LP inscollist(X) RP.    {A = X;}
6204adee20fSdanielk1977 inscollist(A) ::= inscollist(X) COMMA nm(Y).  {A = sqlite3IdListAppend(X,&Y);}
6214adee20fSdanielk1977 inscollist(A) ::= nm(Y).                      {A = sqlite3IdListAppend(0,&Y);}
622348784efSdrh 
623382c0247Sdrh /////////////////////////// Expression Processing /////////////////////////////
624382c0247Sdrh //
625348784efSdrh 
626348784efSdrh %type expr {Expr*}
6274adee20fSdanielk1977 %destructor expr {sqlite3ExprDelete($$);}
6287977a17fSdanielk1977 %type term {Expr*}
6297977a17fSdanielk1977 %destructor term {sqlite3ExprDelete($$);}
630348784efSdrh 
6317977a17fSdanielk1977 expr(A) ::= term(X).             {A = X;}
632752e679aSdanielk1977 expr(A) ::= LP(B) expr(X) RP(E). {A = X; sqlite3ExprSpan(A,&B,&E); }
6337977a17fSdanielk1977 term(A) ::= NULL(X).             {A = sqlite3Expr(@X, 0, 0, &X);}
6344adee20fSdanielk1977 expr(A) ::= ID(X).               {A = sqlite3Expr(TK_ID, 0, 0, &X);}
6354adee20fSdanielk1977 expr(A) ::= JOIN_KW(X).          {A = sqlite3Expr(TK_ID, 0, 0, &X);}
6365ad1a6c8Sdrh expr(A) ::= nm(X) DOT nm(Y). {
6374adee20fSdanielk1977   Expr *temp1 = sqlite3Expr(TK_ID, 0, 0, &X);
6384adee20fSdanielk1977   Expr *temp2 = sqlite3Expr(TK_ID, 0, 0, &Y);
6394adee20fSdanielk1977   A = sqlite3Expr(TK_DOT, temp1, temp2, 0);
640e1b6a5b8Sdrh }
641d24cc427Sdrh expr(A) ::= nm(X) DOT nm(Y) DOT nm(Z). {
6424adee20fSdanielk1977   Expr *temp1 = sqlite3Expr(TK_ID, 0, 0, &X);
6434adee20fSdanielk1977   Expr *temp2 = sqlite3Expr(TK_ID, 0, 0, &Y);
6444adee20fSdanielk1977   Expr *temp3 = sqlite3Expr(TK_ID, 0, 0, &Z);
6454adee20fSdanielk1977   Expr *temp4 = sqlite3Expr(TK_DOT, temp2, temp3, 0);
6464adee20fSdanielk1977   A = sqlite3Expr(TK_DOT, temp1, temp4, 0);
647d24cc427Sdrh }
6487977a17fSdanielk1977 term(A) ::= INTEGER(X).      {A = sqlite3Expr(@X, 0, 0, &X);}
6497977a17fSdanielk1977 term(A) ::= FLOAT(X).        {A = sqlite3Expr(@X, 0, 0, &X);}
6507977a17fSdanielk1977 term(A) ::= STRING(X).       {A = sqlite3Expr(@X, 0, 0, &X);}
651aee18ef8Sdanielk1977 term(A) ::= BLOB(X).         {A = sqlite3Expr(@X, 0, 0, &X);}
6524e0cff60Sdrh expr(A) ::= REGISTER(X).     {A = sqlite3RegisterExpr(pParse, &X);}
6537c972decSdrh expr(A) ::= VARIABLE(X).     {
654895d7472Sdrh   Token *pToken = &X;
655895d7472Sdrh   Expr *pExpr = A = sqlite3Expr(TK_VARIABLE, 0, 0, pToken);
656fa6bc000Sdrh   sqlite3ExprAssignVarNumber(pParse, pExpr);
657895d7472Sdrh }
658487e262fSdrh %ifndef SQLITE_OMIT_CAST
659487e262fSdrh expr(A) ::= CAST(X) LP expr(E) AS typetoken(T) RP(Y). {
660487e262fSdrh   A = sqlite3Expr(TK_CAST, E, 0, &T);
661487e262fSdrh   sqlite3ExprSpan(A,&X,&Y);
662487e262fSdrh }
663487e262fSdrh %endif // SQLITE_OMIT_CAST
664fd357974Sdrh expr(A) ::= ID(X) LP distinct(D) exprlist(Y) RP(E). {
6654adee20fSdanielk1977   A = sqlite3ExprFunction(Y, &X);
6664adee20fSdanielk1977   sqlite3ExprSpan(A,&X,&E);
667fd357974Sdrh   if( D ){
668fd357974Sdrh     A->flags |= EP_Distinct;
669fd357974Sdrh   }
670e1b6a5b8Sdrh }
671e1b6a5b8Sdrh expr(A) ::= ID(X) LP STAR RP(E). {
6724adee20fSdanielk1977   A = sqlite3ExprFunction(0, &X);
6734adee20fSdanielk1977   sqlite3ExprSpan(A,&X,&E);
674e1b6a5b8Sdrh }
675b71090fdSdrh term(A) ::= CTIME_KW(OP). {
676b71090fdSdrh   /* The CURRENT_TIME, CURRENT_DATE, and CURRENT_TIMESTAMP values are
677b71090fdSdrh   ** treated as functions that return constants */
678b71090fdSdrh   A = sqlite3ExprFunction(0,&OP);
679b71090fdSdrh   if( A ) A->op = TK_CONST_FUNC;
680b71090fdSdrh }
6817ac25c75Sdrh expr(A) ::= expr(X) AND(OP) expr(Y).    {A = sqlite3Expr(@OP, X, Y, 0);}
6827ac25c75Sdrh expr(A) ::= expr(X) OR(OP) expr(Y).     {A = sqlite3Expr(@OP, X, Y, 0);}
6837ac25c75Sdrh expr(A) ::= expr(X) LT(OP) expr(Y).     {A = sqlite3Expr(@OP, X, Y, 0);}
6847ac25c75Sdrh expr(A) ::= expr(X) GT(OP) expr(Y).     {A = sqlite3Expr(@OP, X, Y, 0);}
6857ac25c75Sdrh expr(A) ::= expr(X) LE(OP) expr(Y).     {A = sqlite3Expr(@OP, X, Y, 0);}
6867ac25c75Sdrh expr(A) ::= expr(X) GE(OP) expr(Y).     {A = sqlite3Expr(@OP, X, Y, 0);}
6877ac25c75Sdrh expr(A) ::= expr(X) NE(OP) expr(Y).     {A = sqlite3Expr(@OP, X, Y, 0);}
6887ac25c75Sdrh expr(A) ::= expr(X) EQ(OP) expr(Y).     {A = sqlite3Expr(@OP, X, Y, 0);}
6897ac25c75Sdrh expr(A) ::= expr(X) BITAND(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
6907ac25c75Sdrh expr(A) ::= expr(X) BITOR(OP) expr(Y).  {A = sqlite3Expr(@OP, X, Y, 0);}
6917ac25c75Sdrh expr(A) ::= expr(X) LSHIFT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
6927ac25c75Sdrh expr(A) ::= expr(X) RSHIFT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
69374ad7fe9Sdrh expr(A) ::= expr(X) PLUS(OP) expr(Y).   {A = sqlite3Expr(@OP, X, Y, 0);}
69474ad7fe9Sdrh expr(A) ::= expr(X) MINUS(OP) expr(Y).  {A = sqlite3Expr(@OP, X, Y, 0);}
69574ad7fe9Sdrh expr(A) ::= expr(X) STAR(OP) expr(Y).   {A = sqlite3Expr(@OP, X, Y, 0);}
69674ad7fe9Sdrh expr(A) ::= expr(X) SLASH(OP) expr(Y).  {A = sqlite3Expr(@OP, X, Y, 0);}
69774ad7fe9Sdrh expr(A) ::= expr(X) REM(OP) expr(Y).    {A = sqlite3Expr(@OP, X, Y, 0);}
69874ad7fe9Sdrh expr(A) ::= expr(X) CONCAT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
69974ad7fe9Sdrh %type likeop {struct LikeOp}
700b71090fdSdrh likeop(A) ::= LIKE_KW(X).     {A.operator = X; A.not = 0;}
701b71090fdSdrh likeop(A) ::= NOT LIKE_KW(X). {A.operator = X; A.not = 1;}
7027c6303c0Sdanielk1977 %type escape {Expr*}
7037c6303c0Sdanielk1977 escape(X) ::= ESCAPE expr(A). [ESCAPE] {X = A;}
7047c6303c0Sdanielk1977 escape(X) ::= .               [ESCAPE] {X = 0;}
705b71090fdSdrh expr(A) ::= expr(X) likeop(OP) expr(Y) escape(E).  [LIKE_KW]  {
7064adee20fSdanielk1977   ExprList *pList = sqlite3ExprListAppend(0, Y, 0);
7074adee20fSdanielk1977   pList = sqlite3ExprListAppend(pList, X, 0);
7087c6303c0Sdanielk1977   if( E ){
7097c6303c0Sdanielk1977     pList = sqlite3ExprListAppend(pList, E, 0);
7107c6303c0Sdanielk1977   }
711b71090fdSdrh   A = sqlite3ExprFunction(pList, &OP.operator);
7122e3a1f16Sdrh   if( OP.not ) A = sqlite3Expr(TK_NOT, A, 0, 0);
7134adee20fSdanielk1977   sqlite3ExprSpan(A, &X->span, &Y->span);
7140ac65892Sdrh }
7157c6303c0Sdanielk1977 
716e1b6a5b8Sdrh expr(A) ::= expr(X) ISNULL(E). {
7174adee20fSdanielk1977   A = sqlite3Expr(TK_ISNULL, X, 0, 0);
7184adee20fSdanielk1977   sqlite3ExprSpan(A,&X->span,&E);
719e1b6a5b8Sdrh }
72033048c0bSdrh expr(A) ::= expr(X) IS NULL(E). {
7214adee20fSdanielk1977   A = sqlite3Expr(TK_ISNULL, X, 0, 0);
7224adee20fSdanielk1977   sqlite3ExprSpan(A,&X->span,&E);
72333048c0bSdrh }
72433048c0bSdrh expr(A) ::= expr(X) NOTNULL(E). {
7254adee20fSdanielk1977   A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
7264adee20fSdanielk1977   sqlite3ExprSpan(A,&X->span,&E);
72733048c0bSdrh }
728e1b6a5b8Sdrh expr(A) ::= expr(X) NOT NULL(E). {
7294adee20fSdanielk1977   A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
7304adee20fSdanielk1977   sqlite3ExprSpan(A,&X->span,&E);
731e1b6a5b8Sdrh }
73281a20f21Sdrh expr(A) ::= expr(X) IS NOT NULL(E). {
7334adee20fSdanielk1977   A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
7344adee20fSdanielk1977   sqlite3ExprSpan(A,&X->span,&E);
73581a20f21Sdrh }
736e1b6a5b8Sdrh expr(A) ::= NOT(B) expr(X). {
7377ac25c75Sdrh   A = sqlite3Expr(@B, X, 0, 0);
7384adee20fSdanielk1977   sqlite3ExprSpan(A,&B,&X->span);
739e1b6a5b8Sdrh }
74081a20f21Sdrh expr(A) ::= BITNOT(B) expr(X). {
7417ac25c75Sdrh   A = sqlite3Expr(@B, X, 0, 0);
7424adee20fSdanielk1977   sqlite3ExprSpan(A,&B,&X->span);
74381a20f21Sdrh }
744e1b6a5b8Sdrh expr(A) ::= MINUS(B) expr(X). [UMINUS] {
7454adee20fSdanielk1977   A = sqlite3Expr(TK_UMINUS, X, 0, 0);
7464adee20fSdanielk1977   sqlite3ExprSpan(A,&B,&X->span);
747e1b6a5b8Sdrh }
7484b59ab5eSdrh expr(A) ::= PLUS(B) expr(X). [UPLUS] {
7494adee20fSdanielk1977   A = sqlite3Expr(TK_UPLUS, X, 0, 0);
7504adee20fSdanielk1977   sqlite3ExprSpan(A,&B,&X->span);
751e1b6a5b8Sdrh }
7522e3a1f16Sdrh %type between_op {int}
7532e3a1f16Sdrh between_op(A) ::= BETWEEN.     {A = 0;}
7542e3a1f16Sdrh between_op(A) ::= NOT BETWEEN. {A = 1;}
7552e3a1f16Sdrh expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
7564adee20fSdanielk1977   ExprList *pList = sqlite3ExprListAppend(0, X, 0);
7574adee20fSdanielk1977   pList = sqlite3ExprListAppend(pList, Y, 0);
7584adee20fSdanielk1977   A = sqlite3Expr(TK_BETWEEN, W, 0, 0);
75953f733c7Sdrh   if( A ){
76053f733c7Sdrh     A->pList = pList;
76153f733c7Sdrh   }else{
76253f733c7Sdrh     sqlite3ExprListDelete(pList);
76353f733c7Sdrh   }
7642e3a1f16Sdrh   if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
7654adee20fSdanielk1977   sqlite3ExprSpan(A,&W->span,&Y->span);
766fef5208cSdrh }
7673e8c37e7Sdanielk1977 %ifndef SQLITE_OMIT_SUBQUERY
7682e3a1f16Sdrh   %type in_op {int}
7692e3a1f16Sdrh   in_op(A) ::= IN.      {A = 0;}
7702e3a1f16Sdrh   in_op(A) ::= NOT IN.  {A = 1;}
7712e3a1f16Sdrh   expr(A) ::= expr(X) in_op(N) LP exprlist(Y) RP(E). [IN] {
7724adee20fSdanielk1977     A = sqlite3Expr(TK_IN, X, 0, 0);
773d5d56523Sdanielk1977     if( A ){
774d5d56523Sdanielk1977       A->pList = Y;
775d5d56523Sdanielk1977     }else{
776d5d56523Sdanielk1977       sqlite3ExprListDelete(Y);
777d5d56523Sdanielk1977     }
7782e3a1f16Sdrh     if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
7794adee20fSdanielk1977     sqlite3ExprSpan(A,&X->span,&E);
780fef5208cSdrh   }
78151522cd3Sdrh   expr(A) ::= LP(B) select(X) RP(E). {
78251522cd3Sdrh     A = sqlite3Expr(TK_SELECT, 0, 0, 0);
78353f733c7Sdrh     if( A ){
78453f733c7Sdrh       A->pSelect = X;
78553f733c7Sdrh     }else{
78653f733c7Sdrh       sqlite3SelectDelete(X);
78753f733c7Sdrh     }
78851522cd3Sdrh     sqlite3ExprSpan(A,&B,&E);
78951522cd3Sdrh   }
7902e3a1f16Sdrh   expr(A) ::= expr(X) in_op(N) LP select(Y) RP(E).  [IN] {
7914adee20fSdanielk1977     A = sqlite3Expr(TK_IN, X, 0, 0);
79253f733c7Sdrh     if( A ){
79353f733c7Sdrh       A->pSelect = Y;
79453f733c7Sdrh     }else{
79553f733c7Sdrh       sqlite3SelectDelete(Y);
79653f733c7Sdrh     }
7972e3a1f16Sdrh     if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
7984adee20fSdanielk1977     sqlite3ExprSpan(A,&X->span,&E);
799fef5208cSdrh   }
80074ad7fe9Sdrh   expr(A) ::= expr(X) in_op(N) nm(Y) dbnm(Z). [IN] {
80174ad7fe9Sdrh     SrcList *pSrc = sqlite3SrcListAppend(0,&Y,&Z);
8024adee20fSdanielk1977     A = sqlite3Expr(TK_IN, X, 0, 0);
80353f733c7Sdrh     if( A ){
80453f733c7Sdrh       A->pSelect = sqlite3SelectNew(0,pSrc,0,0,0,0,0,0,0);
80553f733c7Sdrh     }else{
80653f733c7Sdrh       sqlite3SrcListDelete(pSrc);
80753f733c7Sdrh     }
8082e3a1f16Sdrh     if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
80974ad7fe9Sdrh     sqlite3ExprSpan(A,&X->span,Z.z?&Z:&Y);
81023b2db23Sdrh   }
81151522cd3Sdrh   expr(A) ::= EXISTS(B) LP select(Y) RP(E). {
81251522cd3Sdrh     Expr *p = A = sqlite3Expr(TK_EXISTS, 0, 0, 0);
81351522cd3Sdrh     if( p ){
81451522cd3Sdrh       p->pSelect = Y;
81551522cd3Sdrh       sqlite3ExprSpan(p,&B,&E);
81653f733c7Sdrh     }else{
81753f733c7Sdrh       sqlite3SelectDelete(Y);
81851522cd3Sdrh     }
81951522cd3Sdrh   }
82051522cd3Sdrh %endif // SQLITE_OMIT_SUBQUERY
821fef5208cSdrh 
82217a7f8ddSdrh /* CASE expressions */
82317a7f8ddSdrh expr(A) ::= CASE(C) case_operand(X) case_exprlist(Y) case_else(Z) END(E). {
8244adee20fSdanielk1977   A = sqlite3Expr(TK_CASE, X, Z, 0);
82553f733c7Sdrh   if( A ){
82653f733c7Sdrh     A->pList = Y;
82753f733c7Sdrh   }else{
82853f733c7Sdrh     sqlite3ExprListDelete(Y);
82953f733c7Sdrh   }
8304adee20fSdanielk1977   sqlite3ExprSpan(A, &C, &E);
83117a7f8ddSdrh }
83217a7f8ddSdrh %type case_exprlist {ExprList*}
8334adee20fSdanielk1977 %destructor case_exprlist {sqlite3ExprListDelete($$);}
83417a7f8ddSdrh case_exprlist(A) ::= case_exprlist(X) WHEN expr(Y) THEN expr(Z). {
8354adee20fSdanielk1977   A = sqlite3ExprListAppend(X, Y, 0);
8364adee20fSdanielk1977   A = sqlite3ExprListAppend(A, Z, 0);
83717a7f8ddSdrh }
83817a7f8ddSdrh case_exprlist(A) ::= WHEN expr(Y) THEN expr(Z). {
8394adee20fSdanielk1977   A = sqlite3ExprListAppend(0, Y, 0);
8404adee20fSdanielk1977   A = sqlite3ExprListAppend(A, Z, 0);
84117a7f8ddSdrh }
84217a7f8ddSdrh %type case_else {Expr*}
84317a7f8ddSdrh case_else(A) ::=  ELSE expr(X).         {A = X;}
84417a7f8ddSdrh case_else(A) ::=  .                     {A = 0;}
84517a7f8ddSdrh %type case_operand {Expr*}
84617a7f8ddSdrh case_operand(A) ::= expr(X).            {A = X;}
84717a7f8ddSdrh case_operand(A) ::= .                   {A = 0;}
848348784efSdrh 
849348784efSdrh %type exprlist {ExprList*}
8504adee20fSdanielk1977 %destructor exprlist {sqlite3ExprListDelete($$);}
851348784efSdrh %type expritem {Expr*}
8524adee20fSdanielk1977 %destructor expritem {sqlite3ExprDelete($$);}
853348784efSdrh 
854348784efSdrh exprlist(A) ::= exprlist(X) COMMA expritem(Y).
8554adee20fSdanielk1977                                         {A = sqlite3ExprListAppend(X,Y,0);}
8564adee20fSdanielk1977 exprlist(A) ::= expritem(X).            {A = sqlite3ExprListAppend(0,X,0);}
857348784efSdrh expritem(A) ::= expr(X).                {A = X;}
858348784efSdrh expritem(A) ::= .                       {A = 0;}
859cce7d176Sdrh 
860382c0247Sdrh ///////////////////////////// The CREATE INDEX command ///////////////////////
861382c0247Sdrh //
862cbb18d22Sdanielk1977 cmd ::= CREATE(S) uniqueflag(U) INDEX nm(X) dbnm(D)
8632b6d46b9Sdanielk1977         ON nm(Y) LP idxlist(Z) RP(E) onconf(R). {
8649cfcf5d4Sdrh   if( U!=OE_None ) U = R;
8659cfcf5d4Sdrh   if( U==OE_Default) U = OE_Abort;
8662b6d46b9Sdanielk1977   sqlite3CreateIndex(pParse, &X, &D, sqlite3SrcListAppend(0,&Y,0),Z,U, &S, &E);
8679cfcf5d4Sdrh }
868717e6402Sdrh 
869717e6402Sdrh %type uniqueflag {int}
8709cfcf5d4Sdrh uniqueflag(A) ::= UNIQUE.  {A = OE_Abort;}
8719cfcf5d4Sdrh uniqueflag(A) ::= .        {A = OE_None;}
872348784efSdrh 
8730202b29eSdanielk1977 %type idxlist {ExprList*}
8740202b29eSdanielk1977 %destructor idxlist {sqlite3ExprListDelete($$);}
8750202b29eSdanielk1977 %type idxlist_opt {ExprList*}
8760202b29eSdanielk1977 %destructor idxlist_opt {sqlite3ExprListDelete($$);}
877348784efSdrh %type idxitem {Token}
878348784efSdrh 
879c2eef3b3Sdrh idxlist_opt(A) ::= .                         {A = 0;}
880c2eef3b3Sdrh idxlist_opt(A) ::= LP idxlist(X) RP.         {A = X;}
8810202b29eSdanielk1977 idxlist(A) ::= idxlist(X) COMMA idxitem(Y) collate(C) sortorder.  {
8820202b29eSdanielk1977   Expr *p = 0;
8830202b29eSdanielk1977   if( C.n>0 ){
8840202b29eSdanielk1977     p = sqlite3Expr(TK_COLUMN, 0, 0, 0);
8850202b29eSdanielk1977     if( p ) p->pColl = sqlite3LocateCollSeq(pParse, C.z, C.n);
8860202b29eSdanielk1977   }
8870202b29eSdanielk1977   A = sqlite3ExprListAppend(X, p, &Y);
8880202b29eSdanielk1977 }
8890202b29eSdanielk1977 idxlist(A) ::= idxitem(Y) collate(C) sortorder. {
8900202b29eSdanielk1977   Expr *p = 0;
8910202b29eSdanielk1977   if( C.n>0 ){
8920202b29eSdanielk1977     p = sqlite3Expr(TK_COLUMN, 0, 0, 0);
8930202b29eSdanielk1977     if( p ) p->pColl = sqlite3LocateCollSeq(pParse, C.z, C.n);
8940202b29eSdanielk1977   }
8950202b29eSdanielk1977   A = sqlite3ExprListAppend(0, p, &Y);
8960202b29eSdanielk1977 }
8970202b29eSdanielk1977 idxitem(A) ::= nm(X).              {A = X;}
8980202b29eSdanielk1977 
899348784efSdrh 
9008aff1015Sdrh ///////////////////////////// The DROP INDEX command /////////////////////////
901382c0247Sdrh //
90274ad7fe9Sdrh cmd ::= DROP INDEX fullname(X).   {sqlite3DropIndex(pParse, X);}
903982cef7eSdrh 
904382c0247Sdrh ///////////////////////////// The VACUUM command /////////////////////////////
905382c0247Sdrh //
9064adee20fSdanielk1977 cmd ::= VACUUM.                {sqlite3Vacuum(pParse,0);}
90774ad7fe9Sdrh cmd ::= VACUUM nm.             {sqlite3Vacuum(pParse,0);}
908f57b14a6Sdrh 
909382c0247Sdrh ///////////////////////////// The PRAGMA command /////////////////////////////
910382c0247Sdrh //
91113d7042aSdrh %ifndef SQLITE_OMIT_PRAGMA
91291cf71b0Sdanielk1977 cmd ::= PRAGMA nm(X) dbnm(Z) EQ nm(Y).  {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
91391cf71b0Sdanielk1977 cmd ::= PRAGMA nm(X) dbnm(Z) EQ ON(Y).  {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
91491cf71b0Sdanielk1977 cmd ::= PRAGMA nm(X) dbnm(Z) EQ plus_num(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
91591cf71b0Sdanielk1977 cmd ::= PRAGMA nm(X) dbnm(Z) EQ minus_num(Y). {
91691cf71b0Sdanielk1977   sqlite3Pragma(pParse,&X,&Z,&Y,1);
91791cf71b0Sdanielk1977 }
91891cf71b0Sdanielk1977 cmd ::= PRAGMA nm(X) dbnm(Z) LP nm(Y) RP. {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
91991cf71b0Sdanielk1977 cmd ::= PRAGMA nm(X) dbnm(Z).             {sqlite3Pragma(pParse,&X,&Z,0,0);}
92013d7042aSdrh %endif // SQLITE_OMIT_PRAGMA
921f57b14a6Sdrh plus_num(A) ::= plus_opt number(X).   {A = X;}
922f57b14a6Sdrh minus_num(A) ::= MINUS number(X).     {A = X;}
923f57b14a6Sdrh number(A) ::= INTEGER(X).             {A = X;}
924f57b14a6Sdrh number(A) ::= FLOAT(X).               {A = X;}
925f57b14a6Sdrh plus_opt ::= PLUS.
926f57b14a6Sdrh plus_opt ::= .
927c3f9bad2Sdanielk1977 
928c3f9bad2Sdanielk1977 //////////////////////////// The CREATE TRIGGER command /////////////////////
929f0f258b1Sdrh 
930b7f9164eSdrh %ifndef SQLITE_OMIT_TRIGGER
931b7f9164eSdrh 
9323df6b257Sdanielk1977 cmd ::= CREATE trigger_decl(A) BEGIN trigger_cmd_list(S) END(Z). {
9334b59ab5eSdrh   Token all;
9344b59ab5eSdrh   all.z = A.z;
9354b59ab5eSdrh   all.n = (Z.z - A.z) + Z.n;
9364adee20fSdanielk1977   sqlite3FinishTrigger(pParse, S, &all);
937f0f258b1Sdrh }
938f0f258b1Sdrh 
93974ad7fe9Sdrh trigger_decl(A) ::= temp(T) TRIGGER nm(B) dbnm(Z) trigger_time(C)
94074ad7fe9Sdrh                     trigger_event(D)
94174ad7fe9Sdrh                     ON fullname(E) foreach_clause(F) when_clause(G). {
94274ad7fe9Sdrh   sqlite3BeginTrigger(pParse, &B, &Z, C, D.a, D.b, E, F, G, T);
9433df6b257Sdanielk1977   A = (Z.n==0?B:Z);
944c3f9bad2Sdanielk1977 }
945c3f9bad2Sdanielk1977 
946c3f9bad2Sdanielk1977 %type trigger_time  {int}
947c3f9bad2Sdanielk1977 trigger_time(A) ::= BEFORE.      { A = TK_BEFORE; }
948c3f9bad2Sdanielk1977 trigger_time(A) ::= AFTER.       { A = TK_AFTER;  }
949c3f9bad2Sdanielk1977 trigger_time(A) ::= INSTEAD OF.  { A = TK_INSTEAD;}
950c3f9bad2Sdanielk1977 trigger_time(A) ::= .            { A = TK_BEFORE; }
951c3f9bad2Sdanielk1977 
952ad3cab52Sdrh %type trigger_event {struct TrigEvent}
9534adee20fSdanielk1977 %destructor trigger_event {sqlite3IdListDelete($$.b);}
95474ad7fe9Sdrh trigger_event(A) ::= DELETE(OP).              {A.a = @OP; A.b = 0;}
95574ad7fe9Sdrh trigger_event(A) ::= INSERT(OP).              {A.a = @OP; A.b = 0;}
95674ad7fe9Sdrh trigger_event(A) ::= UPDATE(OP).              {A.a = @OP; A.b = 0;}
957c3f9bad2Sdanielk1977 trigger_event(A) ::= UPDATE OF inscollist(X). {A.a = TK_UPDATE; A.b = X;}
958c3f9bad2Sdanielk1977 
959c3f9bad2Sdanielk1977 %type foreach_clause {int}
960c3f9bad2Sdanielk1977 foreach_clause(A) ::= .                   { A = TK_ROW; }
961c3f9bad2Sdanielk1977 foreach_clause(A) ::= FOR EACH ROW.       { A = TK_ROW; }
962c3f9bad2Sdanielk1977 foreach_clause(A) ::= FOR EACH STATEMENT. { A = TK_STATEMENT; }
963c3f9bad2Sdanielk1977 
964c3f9bad2Sdanielk1977 %type when_clause {Expr*}
965c3f9bad2Sdanielk1977 when_clause(A) ::= .             { A = 0; }
966c3f9bad2Sdanielk1977 when_clause(A) ::= WHEN expr(X). { A = X; }
967c3f9bad2Sdanielk1977 
968c3f9bad2Sdanielk1977 %type trigger_cmd_list {TriggerStep*}
9694adee20fSdanielk1977 %destructor trigger_cmd_list {sqlite3DeleteTriggerStep($$);}
970c3f9bad2Sdanielk1977 trigger_cmd_list(A) ::= trigger_cmd(X) SEMI trigger_cmd_list(Y). {
971a69d9168Sdrh   X->pNext = Y;
972a69d9168Sdrh   A = X;
973a69d9168Sdrh }
974c3f9bad2Sdanielk1977 trigger_cmd_list(A) ::= . { A = 0; }
975c3f9bad2Sdanielk1977 
976c3f9bad2Sdanielk1977 %type trigger_cmd {TriggerStep*}
9774adee20fSdanielk1977 %destructor trigger_cmd {sqlite3DeleteTriggerStep($$);}
978c3f9bad2Sdanielk1977 // UPDATE
9795ad1a6c8Sdrh trigger_cmd(A) ::= UPDATE orconf(R) nm(X) SET setlist(Y) where_opt(Z).
9804adee20fSdanielk1977                { A = sqlite3TriggerUpdateStep(&X, Y, Z, R); }
981c3f9bad2Sdanielk1977 
982c3f9bad2Sdanielk1977 // INSERT
9833054efeeSdrh trigger_cmd(A) ::= insert_cmd(R) INTO nm(X) inscollist_opt(F)
984c3f9bad2Sdanielk1977                    VALUES LP itemlist(Y) RP.
9854adee20fSdanielk1977                {A = sqlite3TriggerInsertStep(&X, F, Y, 0, R);}
986c3f9bad2Sdanielk1977 
9873054efeeSdrh trigger_cmd(A) ::= insert_cmd(R) INTO nm(X) inscollist_opt(F) select(S).
9884adee20fSdanielk1977                {A = sqlite3TriggerInsertStep(&X, F, 0, S, R);}
989c3f9bad2Sdanielk1977 
990c3f9bad2Sdanielk1977 // DELETE
9915ad1a6c8Sdrh trigger_cmd(A) ::= DELETE FROM nm(X) where_opt(Y).
9924adee20fSdanielk1977                {A = sqlite3TriggerDeleteStep(&X, Y);}
993c3f9bad2Sdanielk1977 
994c3f9bad2Sdanielk1977 // SELECT
9954adee20fSdanielk1977 trigger_cmd(A) ::= select(X).  {A = sqlite3TriggerSelectStep(X); }
996c3f9bad2Sdanielk1977 
9976f34903eSdanielk1977 // The special RAISE expression that may occur in trigger programs
9984b59ab5eSdrh expr(A) ::= RAISE(X) LP IGNORE RP(Y).  {
9994adee20fSdanielk1977   A = sqlite3Expr(TK_RAISE, 0, 0, 0);
10004b59ab5eSdrh   A->iColumn = OE_Ignore;
10014adee20fSdanielk1977   sqlite3ExprSpan(A, &X, &Y);
10024b59ab5eSdrh }
100374ad7fe9Sdrh expr(A) ::= RAISE(X) LP raisetype(T) COMMA nm(Z) RP(Y).  {
10044adee20fSdanielk1977   A = sqlite3Expr(TK_RAISE, 0, 0, &Z);
100574ad7fe9Sdrh   A->iColumn = T;
10064adee20fSdanielk1977   sqlite3ExprSpan(A, &X, &Y);
10074b59ab5eSdrh }
1008b7f9164eSdrh %endif // !SQLITE_OMIT_TRIGGER
1009b7f9164eSdrh 
101074ad7fe9Sdrh %type raisetype {int}
101174ad7fe9Sdrh raisetype(A) ::= ROLLBACK.  {A = OE_Rollback;}
101274ad7fe9Sdrh raisetype(A) ::= ABORT.     {A = OE_Abort;}
101374ad7fe9Sdrh raisetype(A) ::= FAIL.      {A = OE_Fail;}
101474ad7fe9Sdrh 
10156f34903eSdanielk1977 
1016c3f9bad2Sdanielk1977 ////////////////////////  DROP TRIGGER statement //////////////////////////////
1017b7f9164eSdrh %ifndef SQLITE_OMIT_TRIGGER
101874ad7fe9Sdrh cmd ::= DROP TRIGGER fullname(X). {
101974ad7fe9Sdrh   sqlite3DropTrigger(pParse,X);
1020c3f9bad2Sdanielk1977 }
1021b7f9164eSdrh %endif // !SQLITE_OMIT_TRIGGER
1022113088ecSdrh 
1023113088ecSdrh //////////////////////// ATTACH DATABASE file AS name /////////////////////////
10244d189ca4Sdrh cmd ::= ATTACH database_kw_opt ids(F) AS nm(D) key_opt(K). {
102525d6543dSdrh   sqlite3Attach(pParse, &F, &D, K.type, &K.key);
10261c2d8414Sdrh }
102725d6543dSdrh %type key_opt {struct AttachKey}
102825d6543dSdrh key_opt(A) ::= .                     { A.type = 0; }
102925d6543dSdrh key_opt(A) ::= KEY ids(X).           { A.type=1; A.key = X; }
1030feac5f8dSdrh key_opt(A) ::= KEY BLOB(X).          { A.type=2; A.key = X; }
1031113088ecSdrh 
1032113088ecSdrh database_kw_opt ::= DATABASE.
1033113088ecSdrh database_kw_opt ::= .
1034113088ecSdrh 
1035113088ecSdrh //////////////////////// DETACH DATABASE name /////////////////////////////////
10361c2d8414Sdrh cmd ::= DETACH database_kw_opt nm(D). {
10374adee20fSdanielk1977   sqlite3Detach(pParse, &D);
10381c2d8414Sdrh }
10394343fea2Sdrh 
10404343fea2Sdrh ////////////////////////// REINDEX collation //////////////////////////////////
10414343fea2Sdrh %ifndef SQLITE_OMIT_REINDEX
10424343fea2Sdrh cmd ::= REINDEX.                {sqlite3Reindex(pParse, 0, 0);}
10434343fea2Sdrh cmd ::= REINDEX nm(X) dbnm(Y).  {sqlite3Reindex(pParse, &X, &Y);}
10444343fea2Sdrh %endif
10459fd2a9a0Sdanielk1977 
10469f18e8a0Sdrh /////////////////////////////////// ANALYZE ///////////////////////////////////
10479f18e8a0Sdrh %ifndef SQLITE_OMIT_ANALYZE
10489f18e8a0Sdrh cmd ::= ANALYZE.                {sqlite3Analyze(pParse, 0, 0);}
10499f18e8a0Sdrh cmd ::= ANALYZE nm(X) dbnm(Y).  {sqlite3Analyze(pParse, &X, &Y);}
10509f18e8a0Sdrh %endif
10519f18e8a0Sdrh 
10529fd2a9a0Sdanielk1977 //////////////////////// ALTER TABLE table ... ////////////////////////////////
10539fd2a9a0Sdanielk1977 %ifndef SQLITE_OMIT_ALTERTABLE
10549fd2a9a0Sdanielk1977 cmd ::= ALTER TABLE fullname(X) RENAME TO nm(Z). {
10559fd2a9a0Sdanielk1977   sqlite3AlterRenameTable(pParse,X,&Z);
10569fd2a9a0Sdanielk1977 }
105719a8e7e8Sdanielk1977 cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt column(Y). {
105819a8e7e8Sdanielk1977   sqlite3AlterFinishAddColumn(pParse, &Y);
105919a8e7e8Sdanielk1977 }
106019a8e7e8Sdanielk1977 add_column_fullname ::= fullname(X). {
106119a8e7e8Sdanielk1977   sqlite3AlterBeginAddColumn(pParse, X);
106219a8e7e8Sdanielk1977 }
106319a8e7e8Sdanielk1977 kwcolumn_opt ::= .
106419a8e7e8Sdanielk1977 kwcolumn_opt ::= COLUMNKW.
10659fd2a9a0Sdanielk1977 %endif
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