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Add the xIntegrity method to the sqlite3_module object. Implement this

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method in RTREE, FTS3/4, and FTS5 so that "PRAGMA integrity_check" also
verifies the correctness of shadow tables associated with those virtual
tables.

FossilOrigin-Name: 17bede8cdefd968210dd8a5a2617acbe12ba2c99fdd5e88c5def8665e7bec2d7
This commit is contained in:
drh
2023-09-06 12:52:00 +00:00
parent 5a05a68315
commit 961c2a9f36
24 changed files with 223 additions and 55 deletions
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36
src/vdbe.c
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@@ -8128,6 +8128,42 @@ case OP_VOpen: { /* ncycle */
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */
#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VCheck * P2 * P4 *
**
** P4 is a pointer to a Table object that is a virtual table that
** supports the xIntegrity() method. This opcode runs the xIntegrity()
** method for that virtual table. If an error is reported back, the error
** message is stored in register P2. If no errors are seen, register P2
** is set to NULL.
*/
case OP_VCheck: { /* out2 */
Table *pTab;
sqlite3_vtab *pVtab;
const sqlite3_module *pModule;
char *zErr;
pOut = &aMem[pOp->p2];
sqlite3VdbeMemSetNull(pOut); /* Innocent until proven guilty */
assert( pOp->p4type==P4_TABLE );
pTab = pOp->p4.pTab;
assert( pTab!=0 );
assert( IsVirtual(pTab) );
assert( pTab->u.vtab.p!=0 );
pVtab = pTab->u.vtab.p->pVtab;
assert( pVtab!=0 );
pModule = pVtab->pModule;
assert( pModule!=0 );
assert( pModule->iVersion>=4 );
assert( pModule->xIntegrity!=0 );
zErr = pModule->xIntegrity(pVtab);
if( zErr ){
sqlite3VdbeMemSetStr(pOut, zErr, -1, SQLITE_UTF8, sqlite3_free);
}
break;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */
#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Opcode: VInitIn P1 P2 P3 * *
** Synopsis: r[P2]=ValueList(P1,P3)