drh
fdd6e85a34
and write older databases that specify DESC indices but do not really use them. Nothing is close to working yet. (CVS 2822) FossilOrigin-Name: cd110aa225b09591064405dd8952b3df37278c52
1037 lines
35 KiB
Plaintext
1037 lines
35 KiB
Plaintext
/*
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** 2001 September 15
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**
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** The author disclaims copyright to this source code. In place of
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** a legal notice, here is a blessing:
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**
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** May you do good and not evil.
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** May you find forgiveness for yourself and forgive others.
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** May you share freely, never taking more than you give.
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**
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*************************************************************************
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** This file contains SQLite's grammar for SQL. Process this file
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** using the lemon parser generator to generate C code that runs
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** the parser. Lemon will also generate a header file containing
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** numeric codes for all of the tokens.
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**
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** @(#) $Id: parse.y,v 1.188 2005/12/16 01:06:17 drh Exp $
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*/
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// All token codes are small integers with #defines that begin with "TK_"
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%token_prefix TK_
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// The type of the data attached to each token is Token. This is also the
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// default type for non-terminals.
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//
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%token_type {Token}
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%default_type {Token}
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// The generated parser function takes a 4th argument as follows:
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%extra_argument {Parse *pParse}
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// This code runs whenever there is a syntax error
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//
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%syntax_error {
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if( pParse->zErrMsg==0 ){
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if( TOKEN.z[0] ){
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sqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &TOKEN);
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}else{
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sqlite3ErrorMsg(pParse, "incomplete SQL statement");
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}
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}
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}
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// The name of the generated procedure that implements the parser
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// is as follows:
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%name sqlite3Parser
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// The following text is included near the beginning of the C source
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// code file that implements the parser.
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//
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%include {
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#include "sqliteInt.h"
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#include "parse.h"
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/*
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** An instance of this structure holds information about the
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** LIMIT clause of a SELECT statement.
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*/
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struct LimitVal {
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Expr *pLimit; /* The LIMIT expression. NULL if there is no limit */
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Expr *pOffset; /* The OFFSET expression. NULL if there is none */
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};
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/*
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** An instance of this structure is used to store the LIKE,
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** GLOB, NOT LIKE, and NOT GLOB operators.
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*/
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struct LikeOp {
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Token operator; /* "like" or "glob" or "regexp" */
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int not; /* True if the NOT keyword is present */
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};
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/*
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** An instance of the following structure describes the event of a
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** TRIGGER. "a" is the event type, one of TK_UPDATE, TK_INSERT,
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** TK_DELETE, or TK_INSTEAD. If the event is of the form
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**
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** UPDATE ON (a,b,c)
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**
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** Then the "b" IdList records the list "a,b,c".
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*/
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struct TrigEvent { int a; IdList * b; };
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/*
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** An instance of this structure holds the ATTACH key and the key type.
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*/
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struct AttachKey { int type; Token key; };
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} // end %include
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// Input is a single SQL command
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input ::= cmdlist.
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cmdlist ::= cmdlist ecmd.
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cmdlist ::= ecmd.
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cmdx ::= cmd. { sqlite3FinishCoding(pParse); }
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ecmd ::= SEMI.
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ecmd ::= explain cmdx SEMI.
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explain ::= . { sqlite3BeginParse(pParse, 0); }
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%ifndef SQLITE_OMIT_EXPLAIN
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explain ::= EXPLAIN. { sqlite3BeginParse(pParse, 1); }
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explain ::= EXPLAIN QUERY PLAN. { sqlite3BeginParse(pParse, 2); }
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%endif
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///////////////////// Begin and end transactions. ////////////////////////////
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//
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cmd ::= BEGIN transtype(Y) trans_opt. {sqlite3BeginTransaction(pParse, Y);}
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trans_opt ::= .
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trans_opt ::= TRANSACTION.
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trans_opt ::= TRANSACTION nm.
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%type transtype {int}
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transtype(A) ::= . {A = TK_DEFERRED;}
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transtype(A) ::= DEFERRED(X). {A = @X;}
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transtype(A) ::= IMMEDIATE(X). {A = @X;}
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transtype(A) ::= EXCLUSIVE(X). {A = @X;}
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cmd ::= COMMIT trans_opt. {sqlite3CommitTransaction(pParse);}
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cmd ::= END trans_opt. {sqlite3CommitTransaction(pParse);}
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cmd ::= ROLLBACK trans_opt. {sqlite3RollbackTransaction(pParse);}
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///////////////////// The CREATE TABLE statement ////////////////////////////
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//
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cmd ::= create_table create_table_args.
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create_table ::= CREATE(X) temp(T) TABLE nm(Y) dbnm(Z). {
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sqlite3StartTable(pParse,&X,&Y,&Z,T,0);
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}
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%type temp {int}
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%ifndef SQLITE_OMIT_TEMPDB
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temp(A) ::= TEMP. {A = 1;}
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%endif
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temp(A) ::= . {A = 0;}
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create_table_args ::= LP columnlist conslist_opt(X) RP(Y). {
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sqlite3EndTable(pParse,&X,&Y,0);
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}
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create_table_args ::= AS select(S). {
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sqlite3EndTable(pParse,0,0,S);
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sqlite3SelectDelete(S);
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}
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columnlist ::= columnlist COMMA column.
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columnlist ::= column.
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// A "column" is a complete description of a single column in a
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// CREATE TABLE statement. This includes the column name, its
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// datatype, and other keywords such as PRIMARY KEY, UNIQUE, REFERENCES,
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// NOT NULL and so forth.
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//
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column(A) ::= columnid(X) type carglist. {
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A.z = X.z;
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A.n = (pParse->sLastToken.z-X.z) + pParse->sLastToken.n;
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}
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columnid(A) ::= nm(X). {
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sqlite3AddColumn(pParse,&X);
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A = X;
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}
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// An IDENTIFIER can be a generic identifier, or one of several
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// keywords. Any non-standard keyword can also be an identifier.
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//
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%type id {Token}
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id(A) ::= ID(X). {A = X;}
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// The following directive causes tokens ABORT, AFTER, ASC, etc. to
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// fallback to ID if they will not parse as their original value.
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// This obviates the need for the "id" nonterminal.
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//
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%fallback ID
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ABORT AFTER ANALYZE ASC ATTACH BEFORE BEGIN CASCADE CAST CONFLICT
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DATABASE DEFERRED DESC DETACH EACH END EXCLUSIVE EXPLAIN FAIL FOR
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IGNORE IMMEDIATE INITIALLY INSTEAD LIKE_KW MATCH PLAN QUERY KEY
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OF OFFSET PRAGMA RAISE REPLACE RESTRICT ROW STATEMENT
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TEMP TRIGGER VACUUM VIEW
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%ifdef SQLITE_OMIT_COMPOUND_SELECT
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EXCEPT INTERSECT UNION
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%endif
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REINDEX RENAME CTIME_KW
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.
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// Define operator precedence early so that this is the first occurance
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// of the operator tokens in the grammer. Keeping the operators together
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// causes them to be assigned integer values that are close together,
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// which keeps parser tables smaller.
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//
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// The token values assigned to these symbols is determined by the order
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// in which lemon first sees them. It must be the case that ISNULL/NOTNULL,
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// NE/EQ, GT/LE, and GE/LT are separated by only a single value. See
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// the sqlite3ExprIfFalse() routine for additional information on this
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// constraint.
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//
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%left OR.
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%left AND.
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%right NOT.
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%left IS LIKE_KW BETWEEN IN ISNULL NOTNULL NE EQ.
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%left GT LE LT GE.
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%right ESCAPE.
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%left BITAND BITOR LSHIFT RSHIFT.
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%left PLUS MINUS.
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%left STAR SLASH REM.
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%left CONCAT.
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%right UMINUS UPLUS BITNOT.
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// And "ids" is an identifer-or-string.
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//
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%type ids {Token}
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ids(A) ::= ID|STRING(X). {A = X;}
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// The name of a column or table can be any of the following:
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//
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%type nm {Token}
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nm(A) ::= ID(X). {A = X;}
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nm(A) ::= STRING(X). {A = X;}
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nm(A) ::= JOIN_KW(X). {A = X;}
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// A typetoken is really one or more tokens that form a type name such
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// as can be found after the column name in a CREATE TABLE statement.
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// Multiple tokens are concatenated to form the value of the typetoken.
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//
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%type typetoken {Token}
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type ::= .
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type ::= typetoken(X). {sqlite3AddColumnType(pParse,&X);}
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typetoken(A) ::= typename(X). {A = X;}
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typetoken(A) ::= typename(X) LP signed RP(Y). {
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A.z = X.z;
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A.n = &Y.z[Y.n] - X.z;
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}
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typetoken(A) ::= typename(X) LP signed COMMA signed RP(Y). {
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A.z = X.z;
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A.n = &Y.z[Y.n] - X.z;
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}
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%type typename {Token}
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typename(A) ::= ids(X). {A = X;}
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typename(A) ::= typename(X) ids(Y). {A.z=X.z; A.n=Y.n+(Y.z-X.z);}
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%type signed {int}
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signed(A) ::= plus_num(X). { A = atoi((char*)X.z); }
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signed(A) ::= minus_num(X). { A = -atoi((char*)X.z); }
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// "carglist" is a list of additional constraints that come after the
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// column name and column type in a CREATE TABLE statement.
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//
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carglist ::= carglist carg.
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carglist ::= .
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carg ::= CONSTRAINT nm ccons.
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carg ::= ccons.
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carg ::= DEFAULT term(X). {sqlite3AddDefaultValue(pParse,X);}
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carg ::= DEFAULT LP expr(X) RP. {sqlite3AddDefaultValue(pParse,X);}
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carg ::= DEFAULT PLUS term(X). {sqlite3AddDefaultValue(pParse,X);}
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carg ::= DEFAULT MINUS term(X). {
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Expr *p = sqlite3Expr(TK_UMINUS, X, 0, 0);
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sqlite3AddDefaultValue(pParse,p);
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}
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carg ::= DEFAULT id(X). {
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Expr *p = sqlite3Expr(TK_STRING, 0, 0, &X);
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sqlite3AddDefaultValue(pParse,p);
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}
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// In addition to the type name, we also care about the primary key and
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// UNIQUE constraints.
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//
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ccons ::= NULL onconf.
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ccons ::= NOT NULL onconf(R). {sqlite3AddNotNull(pParse, R);}
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ccons ::= PRIMARY KEY sortorder(Z) onconf(R) autoinc(I).
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{sqlite3AddPrimaryKey(pParse,0,R,I,Z);}
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ccons ::= UNIQUE onconf(R). {sqlite3CreateIndex(pParse,0,0,0,0,R,0,0,0);}
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ccons ::= CHECK LP expr(X) RP. {sqlite3AddCheckConstraint(pParse,X);}
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ccons ::= REFERENCES nm(T) idxlist_opt(TA) refargs(R).
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{sqlite3CreateForeignKey(pParse,0,&T,TA,R);}
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ccons ::= defer_subclause(D). {sqlite3DeferForeignKey(pParse,D);}
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ccons ::= COLLATE id(C). {sqlite3AddCollateType(pParse, (char*)C.z, C.n);}
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// The optional AUTOINCREMENT keyword
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%type autoinc {int}
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autoinc(X) ::= . {X = 0;}
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autoinc(X) ::= AUTOINCR. {X = 1;}
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// The next group of rules parses the arguments to a REFERENCES clause
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// that determine if the referential integrity checking is deferred or
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// or immediate and which determine what action to take if a ref-integ
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// check fails.
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//
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%type refargs {int}
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refargs(A) ::= . { A = OE_Restrict * 0x010101; }
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refargs(A) ::= refargs(X) refarg(Y). { A = (X & Y.mask) | Y.value; }
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%type refarg {struct {int value; int mask;}}
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refarg(A) ::= MATCH nm. { A.value = 0; A.mask = 0x000000; }
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refarg(A) ::= ON DELETE refact(X). { A.value = X; A.mask = 0x0000ff; }
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refarg(A) ::= ON UPDATE refact(X). { A.value = X<<8; A.mask = 0x00ff00; }
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refarg(A) ::= ON INSERT refact(X). { A.value = X<<16; A.mask = 0xff0000; }
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%type refact {int}
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refact(A) ::= SET NULL. { A = OE_SetNull; }
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refact(A) ::= SET DEFAULT. { A = OE_SetDflt; }
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refact(A) ::= CASCADE. { A = OE_Cascade; }
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refact(A) ::= RESTRICT. { A = OE_Restrict; }
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%type defer_subclause {int}
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defer_subclause(A) ::= NOT DEFERRABLE init_deferred_pred_opt(X). {A = X;}
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defer_subclause(A) ::= DEFERRABLE init_deferred_pred_opt(X). {A = X;}
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%type init_deferred_pred_opt {int}
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init_deferred_pred_opt(A) ::= . {A = 0;}
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init_deferred_pred_opt(A) ::= INITIALLY DEFERRED. {A = 1;}
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init_deferred_pred_opt(A) ::= INITIALLY IMMEDIATE. {A = 0;}
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// For the time being, the only constraint we care about is the primary
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// key and UNIQUE. Both create indices.
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//
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conslist_opt(A) ::= . {A.n = 0; A.z = 0;}
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conslist_opt(A) ::= COMMA(X) conslist. {A = X;}
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conslist ::= conslist COMMA tcons.
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conslist ::= conslist tcons.
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conslist ::= tcons.
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tcons ::= CONSTRAINT nm.
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tcons ::= PRIMARY KEY LP idxlist(X) autoinc(I) RP onconf(R).
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{sqlite3AddPrimaryKey(pParse,X,R,I,0);}
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tcons ::= UNIQUE LP idxlist(X) RP onconf(R).
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{sqlite3CreateIndex(pParse,0,0,0,X,R,0,0,0);}
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tcons ::= CHECK LP expr(E) RP onconf. {sqlite3AddCheckConstraint(pParse,E);}
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tcons ::= FOREIGN KEY LP idxlist(FA) RP
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REFERENCES nm(T) idxlist_opt(TA) refargs(R) defer_subclause_opt(D). {
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sqlite3CreateForeignKey(pParse, FA, &T, TA, R);
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sqlite3DeferForeignKey(pParse, D);
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}
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%type defer_subclause_opt {int}
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defer_subclause_opt(A) ::= . {A = 0;}
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defer_subclause_opt(A) ::= defer_subclause(X). {A = X;}
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// The following is a non-standard extension that allows us to declare the
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// default behavior when there is a constraint conflict.
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//
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%type onconf {int}
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%type orconf {int}
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%type resolvetype {int}
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onconf(A) ::= . {A = OE_Default;}
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onconf(A) ::= ON CONFLICT resolvetype(X). {A = X;}
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orconf(A) ::= . {A = OE_Default;}
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orconf(A) ::= OR resolvetype(X). {A = X;}
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resolvetype(A) ::= raisetype(X). {A = X;}
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resolvetype(A) ::= IGNORE. {A = OE_Ignore;}
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resolvetype(A) ::= REPLACE. {A = OE_Replace;}
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////////////////////////// The DROP TABLE /////////////////////////////////////
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//
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cmd ::= DROP TABLE fullname(X). {
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sqlite3DropTable(pParse, X, 0);
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}
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///////////////////// The CREATE VIEW statement /////////////////////////////
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//
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%ifndef SQLITE_OMIT_VIEW
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cmd ::= CREATE(X) temp(T) VIEW nm(Y) dbnm(Z) AS select(S). {
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sqlite3CreateView(pParse, &X, &Y, &Z, S, T);
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}
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cmd ::= DROP VIEW fullname(X). {
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sqlite3DropTable(pParse, X, 1);
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}
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%endif // SQLITE_OMIT_VIEW
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//////////////////////// The SELECT statement /////////////////////////////////
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//
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cmd ::= select(X). {
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sqlite3Select(pParse, X, SRT_Callback, 0, 0, 0, 0, 0);
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sqlite3SelectDelete(X);
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}
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%type select {Select*}
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%destructor select {sqlite3SelectDelete($$);}
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|
%type oneselect {Select*}
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%destructor oneselect {sqlite3SelectDelete($$);}
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select(A) ::= oneselect(X). {A = X;}
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|
%ifndef SQLITE_OMIT_COMPOUND_SELECT
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|
select(A) ::= select(X) multiselect_op(Y) oneselect(Z). {
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|
if( Z ){
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Z->op = Y;
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Z->pPrior = X;
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}
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A = Z;
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}
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|
%type multiselect_op {int}
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multiselect_op(A) ::= UNION(OP). {A = @OP;}
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multiselect_op(A) ::= UNION ALL. {A = TK_ALL;}
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multiselect_op(A) ::= EXCEPT|INTERSECT(OP). {A = @OP;}
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%endif // SQLITE_OMIT_COMPOUND_SELECT
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oneselect(A) ::= SELECT distinct(D) selcollist(W) from(X) where_opt(Y)
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|
groupby_opt(P) having_opt(Q) orderby_opt(Z) limit_opt(L). {
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A = sqlite3SelectNew(W,X,Y,P,Q,Z,D,L.pLimit,L.pOffset);
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}
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|
// The "distinct" nonterminal is true (1) if the DISTINCT keyword is
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|
// present and false (0) if it is not.
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//
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%type distinct {int}
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distinct(A) ::= DISTINCT. {A = 1;}
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|
distinct(A) ::= ALL. {A = 0;}
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|
distinct(A) ::= . {A = 0;}
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|
|
// selcollist is a list of expressions that are to become the return
|
|
// values of the SELECT statement. The "*" in statements like
|
|
// "SELECT * FROM ..." is encoded as a special expression with an
|
|
// opcode of TK_ALL.
|
|
//
|
|
%type selcollist {ExprList*}
|
|
%destructor selcollist {sqlite3ExprListDelete($$);}
|
|
%type sclp {ExprList*}
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|
%destructor sclp {sqlite3ExprListDelete($$);}
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sclp(A) ::= selcollist(X) COMMA. {A = X;}
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|
sclp(A) ::= . {A = 0;}
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selcollist(A) ::= sclp(P) expr(X) as(Y). {
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A = sqlite3ExprListAppend(P,X,Y.n?&Y:0);
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}
|
|
selcollist(A) ::= sclp(P) STAR. {
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A = sqlite3ExprListAppend(P, sqlite3Expr(TK_ALL, 0, 0, 0), 0);
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}
|
|
selcollist(A) ::= sclp(P) nm(X) DOT STAR. {
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Expr *pRight = sqlite3Expr(TK_ALL, 0, 0, 0);
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Expr *pLeft = sqlite3Expr(TK_ID, 0, 0, &X);
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A = sqlite3ExprListAppend(P, sqlite3Expr(TK_DOT, pLeft, pRight, 0), 0);
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}
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|
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// An option "AS <id>" phrase that can follow one of the expressions that
|
|
// define the result set, or one of the tables in the FROM clause.
|
|
//
|
|
%type as {Token}
|
|
as(X) ::= AS nm(Y). {X = Y;}
|
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as(X) ::= ids(Y). {X = Y;}
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as(X) ::= . {X.n = 0;}
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|
|
%type seltablist {SrcList*}
|
|
%destructor seltablist {sqlite3SrcListDelete($$);}
|
|
%type stl_prefix {SrcList*}
|
|
%destructor stl_prefix {sqlite3SrcListDelete($$);}
|
|
%type from {SrcList*}
|
|
%destructor from {sqlite3SrcListDelete($$);}
|
|
|
|
// A complete FROM clause.
|
|
//
|
|
from(A) ::= . {A = sqliteMalloc(sizeof(*A));}
|
|
from(A) ::= FROM seltablist(X). {A = X;}
|
|
|
|
// "seltablist" is a "Select Table List" - the content of the FROM clause
|
|
// in a SELECT statement. "stl_prefix" is a prefix of this list.
|
|
//
|
|
stl_prefix(A) ::= seltablist(X) joinop(Y). {
|
|
A = X;
|
|
if( A && A->nSrc>0 ) A->a[A->nSrc-1].jointype = Y;
|
|
}
|
|
stl_prefix(A) ::= . {A = 0;}
|
|
seltablist(A) ::= stl_prefix(X) nm(Y) dbnm(D) as(Z) on_opt(N) using_opt(U). {
|
|
A = sqlite3SrcListAppend(X,&Y,&D);
|
|
if( Z.n ) sqlite3SrcListAddAlias(A,&Z);
|
|
if( N ){
|
|
if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pOn = N; }
|
|
else { sqlite3ExprDelete(N); }
|
|
}
|
|
if( U ){
|
|
if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pUsing = U; }
|
|
else { sqlite3IdListDelete(U); }
|
|
}
|
|
}
|
|
%ifndef SQLITE_OMIT_SUBQUERY
|
|
seltablist(A) ::= stl_prefix(X) LP seltablist_paren(S) RP
|
|
as(Z) on_opt(N) using_opt(U). {
|
|
A = sqlite3SrcListAppend(X,0,0);
|
|
A->a[A->nSrc-1].pSelect = S;
|
|
if( Z.n ) sqlite3SrcListAddAlias(A,&Z);
|
|
if( N ){
|
|
if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pOn = N; }
|
|
else { sqlite3ExprDelete(N); }
|
|
}
|
|
if( U ){
|
|
if( A && A->nSrc>1 ){ A->a[A->nSrc-2].pUsing = U; }
|
|
else { sqlite3IdListDelete(U); }
|
|
}
|
|
}
|
|
|
|
// A seltablist_paren nonterminal represents anything in a FROM that
|
|
// is contained inside parentheses. This can be either a subquery or
|
|
// a grouping of table and subqueries.
|
|
//
|
|
%type seltablist_paren {Select*}
|
|
%destructor seltablist_paren {sqlite3SelectDelete($$);}
|
|
seltablist_paren(A) ::= select(S). {A = S;}
|
|
seltablist_paren(A) ::= seltablist(F). {
|
|
A = sqlite3SelectNew(0,F,0,0,0,0,0,0,0);
|
|
}
|
|
%endif // SQLITE_OMIT_SUBQUERY
|
|
|
|
%type dbnm {Token}
|
|
dbnm(A) ::= . {A.z=0; A.n=0;}
|
|
dbnm(A) ::= DOT nm(X). {A = X;}
|
|
|
|
%type fullname {SrcList*}
|
|
%destructor fullname {sqlite3SrcListDelete($$);}
|
|
fullname(A) ::= nm(X) dbnm(Y). {A = sqlite3SrcListAppend(0,&X,&Y);}
|
|
|
|
%type joinop {int}
|
|
%type joinop2 {int}
|
|
joinop(X) ::= COMMA|JOIN. { X = JT_INNER; }
|
|
joinop(X) ::= JOIN_KW(A) JOIN. { X = sqlite3JoinType(pParse,&A,0,0); }
|
|
joinop(X) ::= JOIN_KW(A) nm(B) JOIN. { X = sqlite3JoinType(pParse,&A,&B,0); }
|
|
joinop(X) ::= JOIN_KW(A) nm(B) nm(C) JOIN.
|
|
{ X = sqlite3JoinType(pParse,&A,&B,&C); }
|
|
|
|
%type on_opt {Expr*}
|
|
%destructor on_opt {sqlite3ExprDelete($$);}
|
|
on_opt(N) ::= ON expr(E). {N = E;}
|
|
on_opt(N) ::= . {N = 0;}
|
|
|
|
%type using_opt {IdList*}
|
|
%destructor using_opt {sqlite3IdListDelete($$);}
|
|
using_opt(U) ::= USING LP inscollist(L) RP. {U = L;}
|
|
using_opt(U) ::= . {U = 0;}
|
|
|
|
|
|
%type orderby_opt {ExprList*}
|
|
%destructor orderby_opt {sqlite3ExprListDelete($$);}
|
|
%type sortlist {ExprList*}
|
|
%destructor sortlist {sqlite3ExprListDelete($$);}
|
|
%type sortitem {Expr*}
|
|
%destructor sortitem {sqlite3ExprDelete($$);}
|
|
|
|
orderby_opt(A) ::= . {A = 0;}
|
|
orderby_opt(A) ::= ORDER BY sortlist(X). {A = X;}
|
|
sortlist(A) ::= sortlist(X) COMMA sortitem(Y) collate(C) sortorder(Z). {
|
|
A = sqlite3ExprListAppend(X,Y,C.n>0?&C:0);
|
|
if( A ) A->a[A->nExpr-1].sortOrder = Z;
|
|
}
|
|
sortlist(A) ::= sortitem(Y) collate(C) sortorder(Z). {
|
|
A = sqlite3ExprListAppend(0,Y,C.n>0?&C:0);
|
|
if( A && A->a ) A->a[0].sortOrder = Z;
|
|
}
|
|
sortitem(A) ::= expr(X). {A = X;}
|
|
|
|
%type sortorder {int}
|
|
%type collate {Token}
|
|
|
|
sortorder(A) ::= ASC. {A = SQLITE_SO_ASC;}
|
|
sortorder(A) ::= DESC. {A = SQLITE_SO_DESC;}
|
|
sortorder(A) ::= . {A = SQLITE_SO_ASC;}
|
|
collate(C) ::= . {C.z = 0; C.n = 0;}
|
|
collate(C) ::= COLLATE id(X). {C = X;}
|
|
|
|
%type groupby_opt {ExprList*}
|
|
%destructor groupby_opt {sqlite3ExprListDelete($$);}
|
|
groupby_opt(A) ::= . {A = 0;}
|
|
groupby_opt(A) ::= GROUP BY exprlist(X). {A = X;}
|
|
|
|
%type having_opt {Expr*}
|
|
%destructor having_opt {sqlite3ExprDelete($$);}
|
|
having_opt(A) ::= . {A = 0;}
|
|
having_opt(A) ::= HAVING expr(X). {A = X;}
|
|
|
|
%type limit_opt {struct LimitVal}
|
|
%destructor limit_opt {
|
|
sqlite3ExprDelete($$.pLimit);
|
|
sqlite3ExprDelete($$.pOffset);
|
|
}
|
|
limit_opt(A) ::= . {A.pLimit = 0; A.pOffset = 0;}
|
|
limit_opt(A) ::= LIMIT expr(X). {A.pLimit = X; A.pOffset = 0;}
|
|
limit_opt(A) ::= LIMIT expr(X) OFFSET expr(Y).
|
|
{A.pLimit = X; A.pOffset = Y;}
|
|
limit_opt(A) ::= LIMIT expr(X) COMMA expr(Y).
|
|
{A.pOffset = X; A.pLimit = Y;}
|
|
|
|
/////////////////////////// The DELETE statement /////////////////////////////
|
|
//
|
|
cmd ::= DELETE FROM fullname(X) where_opt(Y). {sqlite3DeleteFrom(pParse,X,Y);}
|
|
|
|
%type where_opt {Expr*}
|
|
%destructor where_opt {sqlite3ExprDelete($$);}
|
|
|
|
where_opt(A) ::= . {A = 0;}
|
|
where_opt(A) ::= WHERE expr(X). {A = X;}
|
|
|
|
////////////////////////// The UPDATE command ////////////////////////////////
|
|
//
|
|
cmd ::= UPDATE orconf(R) fullname(X) SET setlist(Y) where_opt(Z).
|
|
{sqlite3Update(pParse,X,Y,Z,R);}
|
|
|
|
%type setlist {ExprList*}
|
|
%destructor setlist {sqlite3ExprListDelete($$);}
|
|
|
|
setlist(A) ::= setlist(Z) COMMA nm(X) EQ expr(Y).
|
|
{A = sqlite3ExprListAppend(Z,Y,&X);}
|
|
setlist(A) ::= nm(X) EQ expr(Y). {A = sqlite3ExprListAppend(0,Y,&X);}
|
|
|
|
////////////////////////// The INSERT command /////////////////////////////////
|
|
//
|
|
cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F)
|
|
VALUES LP itemlist(Y) RP.
|
|
{sqlite3Insert(pParse, X, Y, 0, F, R);}
|
|
cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F) select(S).
|
|
{sqlite3Insert(pParse, X, 0, S, F, R);}
|
|
|
|
%type insert_cmd {int}
|
|
insert_cmd(A) ::= INSERT orconf(R). {A = R;}
|
|
insert_cmd(A) ::= REPLACE. {A = OE_Replace;}
|
|
|
|
|
|
%type itemlist {ExprList*}
|
|
%destructor itemlist {sqlite3ExprListDelete($$);}
|
|
|
|
itemlist(A) ::= itemlist(X) COMMA expr(Y). {A = sqlite3ExprListAppend(X,Y,0);}
|
|
itemlist(A) ::= expr(X). {A = sqlite3ExprListAppend(0,X,0);}
|
|
|
|
%type inscollist_opt {IdList*}
|
|
%destructor inscollist_opt {sqlite3IdListDelete($$);}
|
|
%type inscollist {IdList*}
|
|
%destructor inscollist {sqlite3IdListDelete($$);}
|
|
|
|
inscollist_opt(A) ::= . {A = 0;}
|
|
inscollist_opt(A) ::= LP inscollist(X) RP. {A = X;}
|
|
inscollist(A) ::= inscollist(X) COMMA nm(Y). {A = sqlite3IdListAppend(X,&Y);}
|
|
inscollist(A) ::= nm(Y). {A = sqlite3IdListAppend(0,&Y);}
|
|
|
|
/////////////////////////// Expression Processing /////////////////////////////
|
|
//
|
|
|
|
%type expr {Expr*}
|
|
%destructor expr {sqlite3ExprDelete($$);}
|
|
%type term {Expr*}
|
|
%destructor term {sqlite3ExprDelete($$);}
|
|
|
|
expr(A) ::= term(X). {A = X;}
|
|
expr(A) ::= LP(B) expr(X) RP(E). {A = X; sqlite3ExprSpan(A,&B,&E); }
|
|
term(A) ::= NULL(X). {A = sqlite3Expr(@X, 0, 0, &X);}
|
|
expr(A) ::= ID(X). {A = sqlite3Expr(TK_ID, 0, 0, &X);}
|
|
expr(A) ::= JOIN_KW(X). {A = sqlite3Expr(TK_ID, 0, 0, &X);}
|
|
expr(A) ::= nm(X) DOT nm(Y). {
|
|
Expr *temp1 = sqlite3Expr(TK_ID, 0, 0, &X);
|
|
Expr *temp2 = sqlite3Expr(TK_ID, 0, 0, &Y);
|
|
A = sqlite3Expr(TK_DOT, temp1, temp2, 0);
|
|
}
|
|
expr(A) ::= nm(X) DOT nm(Y) DOT nm(Z). {
|
|
Expr *temp1 = sqlite3Expr(TK_ID, 0, 0, &X);
|
|
Expr *temp2 = sqlite3Expr(TK_ID, 0, 0, &Y);
|
|
Expr *temp3 = sqlite3Expr(TK_ID, 0, 0, &Z);
|
|
Expr *temp4 = sqlite3Expr(TK_DOT, temp2, temp3, 0);
|
|
A = sqlite3Expr(TK_DOT, temp1, temp4, 0);
|
|
}
|
|
term(A) ::= INTEGER|FLOAT|BLOB(X). {A = sqlite3Expr(@X, 0, 0, &X);}
|
|
term(A) ::= STRING(X). {A = sqlite3Expr(@X, 0, 0, &X);}
|
|
expr(A) ::= REGISTER(X). {A = sqlite3RegisterExpr(pParse, &X);}
|
|
expr(A) ::= VARIABLE(X). {
|
|
Token *pToken = &X;
|
|
Expr *pExpr = A = sqlite3Expr(TK_VARIABLE, 0, 0, pToken);
|
|
sqlite3ExprAssignVarNumber(pParse, pExpr);
|
|
}
|
|
%ifndef SQLITE_OMIT_CAST
|
|
expr(A) ::= CAST(X) LP expr(E) AS typetoken(T) RP(Y). {
|
|
A = sqlite3Expr(TK_CAST, E, 0, &T);
|
|
sqlite3ExprSpan(A,&X,&Y);
|
|
}
|
|
%endif // SQLITE_OMIT_CAST
|
|
expr(A) ::= ID(X) LP distinct(D) exprlist(Y) RP(E). {
|
|
A = sqlite3ExprFunction(Y, &X);
|
|
sqlite3ExprSpan(A,&X,&E);
|
|
if( D ){
|
|
A->flags |= EP_Distinct;
|
|
}
|
|
}
|
|
expr(A) ::= ID(X) LP STAR RP(E). {
|
|
A = sqlite3ExprFunction(0, &X);
|
|
sqlite3ExprSpan(A,&X,&E);
|
|
}
|
|
term(A) ::= CTIME_KW(OP). {
|
|
/* The CURRENT_TIME, CURRENT_DATE, and CURRENT_TIMESTAMP values are
|
|
** treated as functions that return constants */
|
|
A = sqlite3ExprFunction(0,&OP);
|
|
if( A ) A->op = TK_CONST_FUNC;
|
|
}
|
|
expr(A) ::= expr(X) AND(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
|
|
expr(A) ::= expr(X) OR(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
|
|
expr(A) ::= expr(X) LT|GT|GE|LE(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
|
|
expr(A) ::= expr(X) EQ|NE(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
|
|
expr(A) ::= expr(X) BITAND|BITOR|LSHIFT|RSHIFT(OP) expr(Y).
|
|
{A = sqlite3Expr(@OP, X, Y, 0);}
|
|
expr(A) ::= expr(X) PLUS|MINUS(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
|
|
expr(A) ::= expr(X) STAR|SLASH|REM(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
|
|
expr(A) ::= expr(X) CONCAT(OP) expr(Y). {A = sqlite3Expr(@OP, X, Y, 0);}
|
|
%type likeop {struct LikeOp}
|
|
likeop(A) ::= LIKE_KW(X). {A.operator = X; A.not = 0;}
|
|
likeop(A) ::= NOT LIKE_KW(X). {A.operator = X; A.not = 1;}
|
|
%type escape {Expr*}
|
|
escape(X) ::= ESCAPE expr(A). [ESCAPE] {X = A;}
|
|
escape(X) ::= . [ESCAPE] {X = 0;}
|
|
expr(A) ::= expr(X) likeop(OP) expr(Y) escape(E). [LIKE_KW] {
|
|
ExprList *pList = sqlite3ExprListAppend(0, Y, 0);
|
|
pList = sqlite3ExprListAppend(pList, X, 0);
|
|
if( E ){
|
|
pList = sqlite3ExprListAppend(pList, E, 0);
|
|
}
|
|
A = sqlite3ExprFunction(pList, &OP.operator);
|
|
if( OP.not ) A = sqlite3Expr(TK_NOT, A, 0, 0);
|
|
sqlite3ExprSpan(A, &X->span, &Y->span);
|
|
}
|
|
|
|
expr(A) ::= expr(X) ISNULL|NOTNULL(E). {
|
|
A = sqlite3Expr(@E, X, 0, 0);
|
|
sqlite3ExprSpan(A,&X->span,&E);
|
|
}
|
|
expr(A) ::= expr(X) IS NULL(E). {
|
|
A = sqlite3Expr(TK_ISNULL, X, 0, 0);
|
|
sqlite3ExprSpan(A,&X->span,&E);
|
|
}
|
|
expr(A) ::= expr(X) NOT NULL(E). {
|
|
A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
|
|
sqlite3ExprSpan(A,&X->span,&E);
|
|
}
|
|
expr(A) ::= expr(X) IS NOT NULL(E). {
|
|
A = sqlite3Expr(TK_NOTNULL, X, 0, 0);
|
|
sqlite3ExprSpan(A,&X->span,&E);
|
|
}
|
|
expr(A) ::= NOT|BITNOT(B) expr(X). {
|
|
A = sqlite3Expr(@B, X, 0, 0);
|
|
sqlite3ExprSpan(A,&B,&X->span);
|
|
}
|
|
expr(A) ::= MINUS(B) expr(X). [UMINUS] {
|
|
A = sqlite3Expr(TK_UMINUS, X, 0, 0);
|
|
sqlite3ExprSpan(A,&B,&X->span);
|
|
}
|
|
expr(A) ::= PLUS(B) expr(X). [UPLUS] {
|
|
A = sqlite3Expr(TK_UPLUS, X, 0, 0);
|
|
sqlite3ExprSpan(A,&B,&X->span);
|
|
}
|
|
%type between_op {int}
|
|
between_op(A) ::= BETWEEN. {A = 0;}
|
|
between_op(A) ::= NOT BETWEEN. {A = 1;}
|
|
expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
|
|
ExprList *pList = sqlite3ExprListAppend(0, X, 0);
|
|
pList = sqlite3ExprListAppend(pList, Y, 0);
|
|
A = sqlite3Expr(TK_BETWEEN, W, 0, 0);
|
|
if( A ){
|
|
A->pList = pList;
|
|
}else{
|
|
sqlite3ExprListDelete(pList);
|
|
}
|
|
if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
|
|
sqlite3ExprSpan(A,&W->span,&Y->span);
|
|
}
|
|
%ifndef SQLITE_OMIT_SUBQUERY
|
|
%type in_op {int}
|
|
in_op(A) ::= IN. {A = 0;}
|
|
in_op(A) ::= NOT IN. {A = 1;}
|
|
expr(A) ::= expr(X) in_op(N) LP exprlist(Y) RP(E). [IN] {
|
|
A = sqlite3Expr(TK_IN, X, 0, 0);
|
|
if( A ){
|
|
A->pList = Y;
|
|
}else{
|
|
sqlite3ExprListDelete(Y);
|
|
}
|
|
if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
|
|
sqlite3ExprSpan(A,&X->span,&E);
|
|
}
|
|
expr(A) ::= LP(B) select(X) RP(E). {
|
|
A = sqlite3Expr(TK_SELECT, 0, 0, 0);
|
|
if( A ){
|
|
A->pSelect = X;
|
|
}else{
|
|
sqlite3SelectDelete(X);
|
|
}
|
|
sqlite3ExprSpan(A,&B,&E);
|
|
}
|
|
expr(A) ::= expr(X) in_op(N) LP select(Y) RP(E). [IN] {
|
|
A = sqlite3Expr(TK_IN, X, 0, 0);
|
|
if( A ){
|
|
A->pSelect = Y;
|
|
}else{
|
|
sqlite3SelectDelete(Y);
|
|
}
|
|
if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
|
|
sqlite3ExprSpan(A,&X->span,&E);
|
|
}
|
|
expr(A) ::= expr(X) in_op(N) nm(Y) dbnm(Z). [IN] {
|
|
SrcList *pSrc = sqlite3SrcListAppend(0,&Y,&Z);
|
|
A = sqlite3Expr(TK_IN, X, 0, 0);
|
|
if( A ){
|
|
A->pSelect = sqlite3SelectNew(0,pSrc,0,0,0,0,0,0,0);
|
|
}else{
|
|
sqlite3SrcListDelete(pSrc);
|
|
}
|
|
if( N ) A = sqlite3Expr(TK_NOT, A, 0, 0);
|
|
sqlite3ExprSpan(A,&X->span,Z.z?&Z:&Y);
|
|
}
|
|
expr(A) ::= EXISTS(B) LP select(Y) RP(E). {
|
|
Expr *p = A = sqlite3Expr(TK_EXISTS, 0, 0, 0);
|
|
if( p ){
|
|
p->pSelect = Y;
|
|
sqlite3ExprSpan(p,&B,&E);
|
|
}else{
|
|
sqlite3SelectDelete(Y);
|
|
}
|
|
}
|
|
%endif // SQLITE_OMIT_SUBQUERY
|
|
|
|
/* CASE expressions */
|
|
expr(A) ::= CASE(C) case_operand(X) case_exprlist(Y) case_else(Z) END(E). {
|
|
A = sqlite3Expr(TK_CASE, X, Z, 0);
|
|
if( A ){
|
|
A->pList = Y;
|
|
}else{
|
|
sqlite3ExprListDelete(Y);
|
|
}
|
|
sqlite3ExprSpan(A, &C, &E);
|
|
}
|
|
%type case_exprlist {ExprList*}
|
|
%destructor case_exprlist {sqlite3ExprListDelete($$);}
|
|
case_exprlist(A) ::= case_exprlist(X) WHEN expr(Y) THEN expr(Z). {
|
|
A = sqlite3ExprListAppend(X, Y, 0);
|
|
A = sqlite3ExprListAppend(A, Z, 0);
|
|
}
|
|
case_exprlist(A) ::= WHEN expr(Y) THEN expr(Z). {
|
|
A = sqlite3ExprListAppend(0, Y, 0);
|
|
A = sqlite3ExprListAppend(A, Z, 0);
|
|
}
|
|
%type case_else {Expr*}
|
|
case_else(A) ::= ELSE expr(X). {A = X;}
|
|
case_else(A) ::= . {A = 0;}
|
|
%type case_operand {Expr*}
|
|
case_operand(A) ::= expr(X). {A = X;}
|
|
case_operand(A) ::= . {A = 0;}
|
|
|
|
%type exprlist {ExprList*}
|
|
%destructor exprlist {sqlite3ExprListDelete($$);}
|
|
%type expritem {Expr*}
|
|
%destructor expritem {sqlite3ExprDelete($$);}
|
|
|
|
exprlist(A) ::= exprlist(X) COMMA expritem(Y).
|
|
{A = sqlite3ExprListAppend(X,Y,0);}
|
|
exprlist(A) ::= expritem(X). {A = sqlite3ExprListAppend(0,X,0);}
|
|
expritem(A) ::= expr(X). {A = X;}
|
|
expritem(A) ::= . {A = 0;}
|
|
|
|
///////////////////////////// The CREATE INDEX command ///////////////////////
|
|
//
|
|
cmd ::= CREATE(S) uniqueflag(U) INDEX nm(X) dbnm(D)
|
|
ON nm(Y) LP idxlist(Z) RP(E) onconf(R). {
|
|
if( U!=OE_None ) U = R;
|
|
if( U==OE_Default) U = OE_Abort;
|
|
sqlite3CreateIndex(pParse, &X, &D, sqlite3SrcListAppend(0,&Y,0), Z, U,
|
|
&S, &E, SQLITE_SO_ASC);
|
|
}
|
|
|
|
%type uniqueflag {int}
|
|
uniqueflag(A) ::= UNIQUE. {A = OE_Abort;}
|
|
uniqueflag(A) ::= . {A = OE_None;}
|
|
|
|
%type idxlist {ExprList*}
|
|
%destructor idxlist {sqlite3ExprListDelete($$);}
|
|
%type idxlist_opt {ExprList*}
|
|
%destructor idxlist_opt {sqlite3ExprListDelete($$);}
|
|
%type idxitem {Token}
|
|
|
|
idxlist_opt(A) ::= . {A = 0;}
|
|
idxlist_opt(A) ::= LP idxlist(X) RP. {A = X;}
|
|
idxlist(A) ::= idxlist(X) COMMA idxitem(Y) collate(C) sortorder(Z). {
|
|
Expr *p = 0;
|
|
if( C.n>0 ){
|
|
p = sqlite3Expr(TK_COLUMN, 0, 0, 0);
|
|
if( p ) p->pColl = sqlite3LocateCollSeq(pParse, (char*)C.z, C.n);
|
|
}
|
|
A = sqlite3ExprListAppend(X, p, &Y);
|
|
if( A ) A->a[A->nExpr-1].sortOrder = Z;
|
|
}
|
|
idxlist(A) ::= idxitem(Y) collate(C) sortorder(Z). {
|
|
Expr *p = 0;
|
|
if( C.n>0 ){
|
|
p = sqlite3Expr(TK_COLUMN, 0, 0, 0);
|
|
if( p ) p->pColl = sqlite3LocateCollSeq(pParse, (char*)C.z, C.n);
|
|
}
|
|
A = sqlite3ExprListAppend(0, p, &Y);
|
|
if( A ) A->a[A->nExpr-1].sortOrder = Z;
|
|
}
|
|
idxitem(A) ::= nm(X). {A = X;}
|
|
|
|
|
|
///////////////////////////// The DROP INDEX command /////////////////////////
|
|
//
|
|
cmd ::= DROP INDEX fullname(X). {sqlite3DropIndex(pParse, X);}
|
|
|
|
///////////////////////////// The VACUUM command /////////////////////////////
|
|
//
|
|
cmd ::= VACUUM. {sqlite3Vacuum(pParse,0);}
|
|
cmd ::= VACUUM nm. {sqlite3Vacuum(pParse,0);}
|
|
|
|
///////////////////////////// The PRAGMA command /////////////////////////////
|
|
//
|
|
%ifndef SQLITE_OMIT_PRAGMA
|
|
cmd ::= PRAGMA nm(X) dbnm(Z) EQ nm(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
|
|
cmd ::= PRAGMA nm(X) dbnm(Z) EQ ON(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
|
|
cmd ::= PRAGMA nm(X) dbnm(Z) EQ plus_num(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
|
|
cmd ::= PRAGMA nm(X) dbnm(Z) EQ minus_num(Y). {
|
|
sqlite3Pragma(pParse,&X,&Z,&Y,1);
|
|
}
|
|
cmd ::= PRAGMA nm(X) dbnm(Z) LP nm(Y) RP. {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
|
|
cmd ::= PRAGMA nm(X) dbnm(Z). {sqlite3Pragma(pParse,&X,&Z,0,0);}
|
|
%endif // SQLITE_OMIT_PRAGMA
|
|
plus_num(A) ::= plus_opt number(X). {A = X;}
|
|
minus_num(A) ::= MINUS number(X). {A = X;}
|
|
number(A) ::= INTEGER|FLOAT(X). {A = X;}
|
|
plus_opt ::= PLUS.
|
|
plus_opt ::= .
|
|
|
|
//////////////////////////// The CREATE TRIGGER command /////////////////////
|
|
|
|
%ifndef SQLITE_OMIT_TRIGGER
|
|
|
|
cmd ::= CREATE trigger_decl(A) BEGIN trigger_cmd_list(S) END(Z). {
|
|
Token all;
|
|
all.z = A.z;
|
|
all.n = (Z.z - A.z) + Z.n;
|
|
sqlite3FinishTrigger(pParse, S, &all);
|
|
}
|
|
|
|
trigger_decl(A) ::= temp(T) TRIGGER nm(B) dbnm(Z) trigger_time(C)
|
|
trigger_event(D)
|
|
ON fullname(E) foreach_clause(F) when_clause(G). {
|
|
sqlite3BeginTrigger(pParse, &B, &Z, C, D.a, D.b, E, F, G, T);
|
|
A = (Z.n==0?B:Z);
|
|
}
|
|
|
|
%type trigger_time {int}
|
|
trigger_time(A) ::= BEFORE. { A = TK_BEFORE; }
|
|
trigger_time(A) ::= AFTER. { A = TK_AFTER; }
|
|
trigger_time(A) ::= INSTEAD OF. { A = TK_INSTEAD;}
|
|
trigger_time(A) ::= . { A = TK_BEFORE; }
|
|
|
|
%type trigger_event {struct TrigEvent}
|
|
%destructor trigger_event {sqlite3IdListDelete($$.b);}
|
|
trigger_event(A) ::= DELETE|INSERT(OP). {A.a = @OP; A.b = 0;}
|
|
trigger_event(A) ::= UPDATE(OP). {A.a = @OP; A.b = 0;}
|
|
trigger_event(A) ::= UPDATE OF inscollist(X). {A.a = TK_UPDATE; A.b = X;}
|
|
|
|
%type foreach_clause {int}
|
|
foreach_clause(A) ::= . { A = TK_ROW; }
|
|
foreach_clause(A) ::= FOR EACH ROW. { A = TK_ROW; }
|
|
foreach_clause(A) ::= FOR EACH STATEMENT. { A = TK_STATEMENT; }
|
|
|
|
%type when_clause {Expr*}
|
|
when_clause(A) ::= . { A = 0; }
|
|
when_clause(A) ::= WHEN expr(X). { A = X; }
|
|
|
|
%type trigger_cmd_list {TriggerStep*}
|
|
%destructor trigger_cmd_list {sqlite3DeleteTriggerStep($$);}
|
|
trigger_cmd_list(A) ::= trigger_cmd(X) SEMI trigger_cmd_list(Y). {
|
|
X->pNext = Y;
|
|
A = X;
|
|
}
|
|
trigger_cmd_list(A) ::= . { A = 0; }
|
|
|
|
%type trigger_cmd {TriggerStep*}
|
|
%destructor trigger_cmd {sqlite3DeleteTriggerStep($$);}
|
|
// UPDATE
|
|
trigger_cmd(A) ::= UPDATE orconf(R) nm(X) SET setlist(Y) where_opt(Z).
|
|
{ A = sqlite3TriggerUpdateStep(&X, Y, Z, R); }
|
|
|
|
// INSERT
|
|
trigger_cmd(A) ::= insert_cmd(R) INTO nm(X) inscollist_opt(F)
|
|
VALUES LP itemlist(Y) RP.
|
|
{A = sqlite3TriggerInsertStep(&X, F, Y, 0, R);}
|
|
|
|
trigger_cmd(A) ::= insert_cmd(R) INTO nm(X) inscollist_opt(F) select(S).
|
|
{A = sqlite3TriggerInsertStep(&X, F, 0, S, R);}
|
|
|
|
// DELETE
|
|
trigger_cmd(A) ::= DELETE FROM nm(X) where_opt(Y).
|
|
{A = sqlite3TriggerDeleteStep(&X, Y);}
|
|
|
|
// SELECT
|
|
trigger_cmd(A) ::= select(X). {A = sqlite3TriggerSelectStep(X); }
|
|
|
|
// The special RAISE expression that may occur in trigger programs
|
|
expr(A) ::= RAISE(X) LP IGNORE RP(Y). {
|
|
A = sqlite3Expr(TK_RAISE, 0, 0, 0);
|
|
A->iColumn = OE_Ignore;
|
|
sqlite3ExprSpan(A, &X, &Y);
|
|
}
|
|
expr(A) ::= RAISE(X) LP raisetype(T) COMMA nm(Z) RP(Y). {
|
|
A = sqlite3Expr(TK_RAISE, 0, 0, &Z);
|
|
A->iColumn = T;
|
|
sqlite3ExprSpan(A, &X, &Y);
|
|
}
|
|
%endif // !SQLITE_OMIT_TRIGGER
|
|
|
|
%type raisetype {int}
|
|
raisetype(A) ::= ROLLBACK. {A = OE_Rollback;}
|
|
raisetype(A) ::= ABORT. {A = OE_Abort;}
|
|
raisetype(A) ::= FAIL. {A = OE_Fail;}
|
|
|
|
|
|
//////////////////////// DROP TRIGGER statement //////////////////////////////
|
|
%ifndef SQLITE_OMIT_TRIGGER
|
|
cmd ::= DROP TRIGGER fullname(X). {
|
|
sqlite3DropTrigger(pParse,X);
|
|
}
|
|
%endif // !SQLITE_OMIT_TRIGGER
|
|
|
|
//////////////////////// ATTACH DATABASE file AS name /////////////////////////
|
|
cmd ::= ATTACH database_kw_opt expr(F) AS expr(D) key_opt(K). {
|
|
sqlite3Attach(pParse, F, D, K);
|
|
}
|
|
%type key_opt {Expr *}
|
|
key_opt(A) ::= . { A = 0; }
|
|
key_opt(A) ::= KEY expr(X). { A = X; }
|
|
|
|
database_kw_opt ::= DATABASE.
|
|
database_kw_opt ::= .
|
|
|
|
//////////////////////// DETACH DATABASE name /////////////////////////////////
|
|
cmd ::= DETACH database_kw_opt expr(D). {
|
|
sqlite3Detach(pParse, D);
|
|
}
|
|
|
|
////////////////////////// REINDEX collation //////////////////////////////////
|
|
%ifndef SQLITE_OMIT_REINDEX
|
|
cmd ::= REINDEX. {sqlite3Reindex(pParse, 0, 0);}
|
|
cmd ::= REINDEX nm(X) dbnm(Y). {sqlite3Reindex(pParse, &X, &Y);}
|
|
%endif
|
|
|
|
/////////////////////////////////// ANALYZE ///////////////////////////////////
|
|
%ifndef SQLITE_OMIT_ANALYZE
|
|
cmd ::= ANALYZE. {sqlite3Analyze(pParse, 0, 0);}
|
|
cmd ::= ANALYZE nm(X) dbnm(Y). {sqlite3Analyze(pParse, &X, &Y);}
|
|
%endif
|
|
|
|
//////////////////////// ALTER TABLE table ... ////////////////////////////////
|
|
%ifndef SQLITE_OMIT_ALTERTABLE
|
|
cmd ::= ALTER TABLE fullname(X) RENAME TO nm(Z). {
|
|
sqlite3AlterRenameTable(pParse,X,&Z);
|
|
}
|
|
cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt column(Y). {
|
|
sqlite3AlterFinishAddColumn(pParse, &Y);
|
|
}
|
|
add_column_fullname ::= fullname(X). {
|
|
sqlite3AlterBeginAddColumn(pParse, X);
|
|
}
|
|
kwcolumn_opt ::= .
|
|
kwcolumn_opt ::= COLUMNKW.
|
|
%endif
|