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Handle empty blob constants correctly. Ticket #1373. (CVS 2615)

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FossilOrigin-Name: 5cada745ac9bf18a65d21705a398b2bb8bd1aaa2
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drh
2005-08-23 11:17:58 +00:00
parent 75757853a0
commit 6c8c6cec1f
4 changed files with 23 additions and 15 deletions
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12
src/expr.c
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@@ -12,7 +12,7 @@
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.218 2005/08/19 03:03:52 drh Exp $
** $Id: expr.c,v 1.219 2005/08/23 11:17:59 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -1467,8 +1467,16 @@ void sqlite3ExprCode(Parse *pParse, Expr *pExpr){
}
#ifndef SQLITE_OMIT_BLOB_LITERAL
case TK_BLOB: {
int n;
const char *z;
assert( TK_BLOB==OP_HexBlob );
sqlite3VdbeOp3(v, op, 0, 0, pExpr->token.z+2, pExpr->token.n-3);
n = pExpr->token.n - 3;
z = pExpr->token.z + 2;
assert( n>=0 );
if( n==0 ){
z = "";
}
sqlite3VdbeOp3(v, op, 0, 0, z, n);
break;
}
#endif