Method index_put

nodedb/src/engine/sparse/btree_index.rs:295–319

Insert a secondary index entry (tenant-scoped). Opens its own write transaction. Callers already inside a write transaction — the PointPut / BatchInsert apply path — MUST use [`SparseEngine::index_put_in_txn`] instead; redb allows only one active writer so a nested `begin_write` here deadlocks.

(
        &self,
        tenant_id: u64,
        collection: &str,
        field: &str,
        value: &str,
        document_id: &str,
    )

    /// [`SparseEngine::index_put_in_txn`] instead; redb allows only one
    /// active writer so a nested `begin_write` here deadlocks.
    pub fn index_put(
        &self,
        tenant_id: u64,
        collection: &str,
        field: &str,
        value: &str,
        document_id: &str,
    ) -> crate::Result<()> {
        super::btree::with_tenant_key4(tenant_id, collection, field, value, document_id, |key| {
            let write_txn = self
                .db
                .begin_write()
                .map_err(|e| redb_err("write txn", e))?;
            {
                let mut table = write_txn
                    .open_table(INDEXES)
                    .map_err(|e| redb_err("open table", e))?;
                table
                    .insert(key, [].as_slice())
                    .map_err(|e| redb_err("index insert", e))?;
            }
            write_txn.commit().map_err(|e| redb_err("commit", e))?;
            Ok(())
        })
    }

    /// Insert a secondary index entry into an already-open write txn.
    ///