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Adding table column query capability to support ODBC. (CVS 278)

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FossilOrigin-Name: b63b3f3684a3d584ef99f54cde76b6c483bbfef7
This commit is contained in:
drh
2001-10-06 16:33:02 +00:00
parent 480bf1769d
commit 382c0247c7
20 changed files with 361 additions and 105 deletions
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20
src/vdbe.c
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@@ -30,11 +30,10 @@
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.79 2001/09/27 15:11:54 drh Exp $
** $Id: vdbe.c,v 1.80 2001/10/06 16:33:03 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include <unistd.h>
/*
** SQL is translated into a sequence of instructions to be
@@ -1084,20 +1083,26 @@ case OP_Integer: {
/* Opcode: String * * P3
**
** The string value P3 is pushed onto the stack.
** The string value P3 is pushed onto the stack. If P3==0 then a
** NULL is pushed onto the stack.
*/
case OP_String: {
int i = ++p->tos;
char *z;
VERIFY( if( NeedStack(p, p->tos) ) goto no_mem; )
z = pOp->p3;
if( z==0 ) z = "";
zStack[i] = z;
aStack[i].n = strlen(z) + 1;
aStack[i].flags = STK_Str;
if( z==0 ){
zStack[i] = 0;
aStack[i].flags = STK_Null;
}else{
zStack[i] = z;
aStack[i].n = strlen(z) + 1;
aStack[i].flags = STK_Str;
}
break;
}
#if 0 /* NOT USED */
/* Opcode: Null * * *
**
** Push a NULL value onto the stack.
@@ -1109,6 +1114,7 @@ case OP_Null: {
aStack[i].flags = STK_Null;
break;
}
#endif
/* Opcode: Pop P1 * *
**