Man page - mongoc_bulkwrite_updatemanyopts_set_upsert(3)

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MONGOC_BULKWRITE_UPDATEMANYOPTS_SET_UPSERT(3) libmongoc MONGOC_BULKWRITE_UPDATEMANYOPTS_SET_UPSERT(3)

void
mongoc_bulkwrite_updatemanyopts_set_upsert (mongoc_bulkwrite_updatemanyopts_t *self, bool upsert);


If upsert is true, creates a new document if no document matches the query.

The upsert option is not sent if this function is not called. The server's default value is false.

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December 18, 2025 1.30.4