mirrors/mongodb
mirrors/mongodb
0
0
Fork 0
mirror of https://github.com/mongodb/mongo.git synced 2024-12-01 09:32:32 +01:00
Code Issues Releases Activity

index updates

Browse Source
This commit is contained in:
Dwight 2007-11-11 18:28:33 -05:00
parent 5d77507008
commit 2f735ca816
3 changed files with 50 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
db/btree.cpp
View File

@ -307,7 +307,7 @@ int BtreeBucket::_insert(const DiskLoc& thisLoc, const char *ns, const DiskLoc&
bool found = find(key, pos);
if( found ) {
// todo: support dup keys
cout << "dup key failing" << endl;
cout << " dup key failing" << endl;
return 1;
}

31
db/pdfile.cpp
View File

@ -354,7 +354,7 @@ void DataFileMgr::update(
Record *toupdate, const DiskLoc& dl,
const char *buf, int len)
{
if( toupdate->netLength() < len ) {
if( toupdate->netLength() < len ) {
cout << "temp: update: moving record to a larger location " << ns << endl;
// doesn't fit.
deleteRecord(ns, toupdate, dl);
@ -362,6 +362,35 @@ void DataFileMgr::update(
return;
}
/* has any index keys changed? */
{
NamespaceDetails *d = namespaceIndex.details(ns);
if( d->nIndexes ) {
JSObj newObj(buf);
JSObj oldObj = dl.obj();
for( int i = 0; i < d->nIndexes; i++ ) {
IndexDetails& idx = d->indexes[i];
JSObj idxKey = idx.info.obj().getObjectField("key");
JSObjBuilder b1,b2;
JSObj kNew = newObj.extractFields(idxKey, b1);
JSObj kOld = oldObj.extractFields(idxKey, b2);
if( !kNew.woEqual(kOld) ) {
cout << " updating index, key changed " << idx.indexNamespace() << endl;
// delete old key
if( !kOld.isEmpty() )
idx.head.btree()->unindex(kOld);
// add new key
if( !kNew.isEmpty() ) {
idx.head.btree()->insert(
idx.head,
idx.indexNamespace().c_str(),
dl, kNew, false);
}
}
}
}
}
memcpy(toupdate->data, buf, len);
}

30
db/query.cpp
View File

@ -94,18 +94,26 @@ void updateObjects(const char *ns, JSObj updateobj, JSObj pattern, bool upsert)
return;
}
JSMatcher matcher(pattern);
auto_ptr<Cursor> c = theDataFileMgr.findAll(ns);
while( c->ok() ) {
Record *r = c->_current();
JSObj js(r);
if( matcher.matches(js) ) {
cout << " found match to update" << endl;
theDataFileMgr.update(ns, r, c->currLoc(), updateobj.objdata(), updateobj.objsize());
return;
{
JSMatcher matcher(pattern);
JSObj order;
auto_ptr<Cursor> c = getIndexCursor(ns, pattern, order);
if( c.get() == 0 )
c = theDataFileMgr.findAll(ns);
while( c->ok() ) {
Record *r = c->_current();
JSObj js(r);
if( !matcher.matches(js) ) {
if( c->tempStopOnMiss() )
break;
}
else {
cout << " found match to update" << endl;
theDataFileMgr.update(ns, r, c->currLoc(), updateobj.objdata(), updateobj.objsize());
return;
}
c->advance();
}
c->advance();
}
cout << " no match found. ";