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Allow "<expr> IN <table>" as a shorthand for

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"<expr> IN (SELECT * FROM <table>)" (CVS 1180)

FossilOrigin-Name: 01874d252ac44861e927dea3f5534f67e19b1fa8
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drh
2004-01-15 03:30:24 +00:00
parent aa940eacfe
commit 23b2db23b4
4 changed files with 49 additions and 11 deletions
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src/parse.y
+17 -1
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@@ -14,7 +14,7 @@
** the parser. Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.105 2003/12/06 21:43:56 drh Exp $
** @(#) $Id: parse.y,v 1.106 2004/01/15 03:30:25 drh Exp $
*/
%token_prefix TK_
%token_type {Token}
@@ -664,6 +664,22 @@ expr(A) ::= expr(X) NOT IN LP select(Y) RP(E). {
A = sqliteExpr(TK_NOT, A, 0, 0);
sqliteExprSpan(A,&X->span,&E);
}
expr(A) ::= expr(X) IN nm(Y) dbnm(D). {
SrcList *pSrc = sqliteSrcListAppend(0, &Y, &D);
ExprList *pList = sqliteExprListAppend(0, sqliteExpr(TK_ALL,0,0,0), 0);
A = sqliteExpr(TK_IN, X, 0, 0);
if( A ) A->pSelect = sqliteSelectNew(pList,pSrc,0,0,0,0,0,-1,0);
sqliteExprSpan(A,&X->span,D.z?&D:&Y);
}
expr(A) ::= expr(X) NOT IN nm(Y) dbnm(D). {
SrcList *pSrc = sqliteSrcListAppend(0, &Y, &D);
ExprList *pList = sqliteExprListAppend(0, sqliteExpr(TK_ALL,0,0,0), 0);
A = sqliteExpr(TK_IN, X, 0, 0);
if( A ) A->pSelect = sqliteSelectNew(pList,pSrc,0,0,0,0,0,-1,0);
A = sqliteExpr(TK_NOT, A, 0, 0);
sqliteExprSpan(A,&X->span,D.z?&D:&Y);
}
/* CASE expressions */
expr(A) ::= CASE(C) case_operand(X) case_exprlist(Y) case_else(Z) END(E). {