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Add the "page_count" pragma. Returns a single integer - the number of pages in the specified database file. (CVS 5135)

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FossilOrigin-Name: eb6985e69ce2a5e5e7361f6226d1cfc547fd441d
This commit is contained in:
danielk1977
2008-05-15 17:48:20 +00:00
parent dad31b5e11
commit 59a93791ce
5 changed files with 107 additions and 12 deletions
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20
src/pragma.c
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@@ -11,7 +11,7 @@
*************************************************************************
** This file contains code used to implement the PRAGMA command.
**
** $Id: pragma.c,v 1.176 2008/04/17 20:59:38 drh Exp $
** $Id: pragma.c,v 1.177 2008/05/15 17:48:20 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -378,6 +378,24 @@ void sqlite3Pragma(
returnSingleInt(pParse, "max_page_count", newMax);
}else
/*
** PRAGMA [database.]page_count
**
** Return the number of pages in the specified database.
*/
if( sqlite3StrICmp(zLeft,"page_count")==0 ){
Vdbe *v;
int iReg;
v = sqlite3GetVdbe(pParse);
if( !v || sqlite3ReadSchema(pParse) ) goto pragma_out;
sqlite3CodeVerifySchema(pParse, iDb);
iReg = ++pParse->nMem;
sqlite3VdbeAddOp2(v, OP_Pagecount, iDb, iReg);
sqlite3VdbeAddOp2(v, OP_ResultRow, iReg, 1);
sqlite3VdbeSetNumCols(v, 1);
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "page_count", P4_STATIC);
}else
/*
** PRAGMA [database.]locking_mode
** PRAGMA [database.]locking_mode = (normal|exclusive)