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Add an experimental API for retrieving the SQL source from a compiled statement: sqlite3_sql(). Ticket #2769. (CVS 4543)

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FossilOrigin-Name: d31f1e0d74a871d66cf7d3ef35faae5171d5cbc3
This commit is contained in:
danielk1977
2007-11-14 06:48:48 +00:00
parent 8e556520e9
commit d0e2a85436
7 changed files with 40 additions and 23 deletions
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11
src/tclsqlite.c
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@@ -12,7 +12,7 @@
** A TCL Interface to SQLite. Append this file to sqlite3.c and
** compile the whole thing to build a TCL-enabled version of SQLite.
**
** $Id: tclsqlite.c,v 1.206 2007/11/13 10:30:26 danielk1977 Exp $
** $Id: tclsqlite.c,v 1.207 2007/11/14 06:48:48 danielk1977 Exp $
*/
#include "tcl.h"
#include <errno.h>
@@ -85,7 +85,7 @@ struct SqlPreparedStmt {
SqlPreparedStmt *pPrev; /* Previous on the list */
sqlite3_stmt *pStmt; /* The prepared statement */
int nSql; /* chars in zSql[] */
char zSql[1]; /* Text of the SQL statement */
const char *zSql; /* Text of the SQL statement */
};
typedef struct IncrblobChannel IncrblobChannel;
@@ -1813,12 +1813,13 @@ static int DbObjCmd(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
*/
if( pPreStmt==0 ){
len = zLeft - zSql;
pPreStmt = (SqlPreparedStmt*)Tcl_Alloc( sizeof(*pPreStmt) + len );
pPreStmt = (SqlPreparedStmt*)Tcl_Alloc( sizeof(*pPreStmt) );
if( pPreStmt==0 ) return TCL_ERROR;
pPreStmt->pStmt = pStmt;
pPreStmt->nSql = len;
memcpy(pPreStmt->zSql, zSql, len);
pPreStmt->zSql[len] = 0;
pPreStmt->zSql = sqlite3_sql(pStmt);
assert( strlen(pPreStmt->zSql)==len );
assert( 0==memcmp(pPreStmt->zSql, zSql, len) );
}
/* Add the prepared statement to the beginning of the cache list