diff --git a/R/meta.R b/R/meta.R
index 4689f1706..74b6ade63 100644
--- a/R/meta.R
+++ b/R/meta.R
@@ -235,13 +235,19 @@ meta_rel_register <- function(rel, rel_expr) {
     meta_record(constructive::deparse_call(expr(!!current_call)))
   }
 
-  # https://github.com/cynkra/constructive/issues/102
-  meta_record(constructive::deparse_call(expr(!!name <- !!rel_expr)))
+  # Will be NULL if the computation fails
+  if (is.null(rel)) {
+    # Multi-expressions not there yet:
+    # https://github.com/cynkra/constructive/issues/102
+    meta_record(constructive::deparse_call(expr(try(!!name <- !!rel_expr))))
+  } else {
+    meta_record(constructive::deparse_call(expr(!!name <- !!rel_expr)))
 
-  obj <- list(rel = rel, name = name, df = df)
-  hash <- deparse(rel)
+    obj <- list(rel = rel, name = name)
+    hash <- deparse(rel)
 
-  rel_cache$set(hash, obj)
+    rel_cache$set(hash, obj)
+  }
   invisible()
 }
 
diff --git a/R/relational-duckdb.R b/R/relational-duckdb.R
index d8bc8ba9b..c5733743c 100644
--- a/R/relational-duckdb.R
+++ b/R/relational-duckdb.R
@@ -192,12 +192,15 @@ rel_to_df.duckdb_relation <- function(rel, ...) {
 #' @export
 rel_filter.duckdb_relation <- function(rel, exprs, ...) {
   duckdb_exprs <- to_duckdb_exprs(exprs)
-  out <- duckdb$rel_filter(rel, duckdb_exprs)
+  
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_filter(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_filter(
     !!meta_rel_get(rel)$name,
     list(!!!to_duckdb_exprs_meta(exprs))
-  )))
+  ))))
+
+  out <- duckdb$rel_filter(rel, duckdb_exprs)
 
   out
 }
@@ -206,12 +209,14 @@ rel_filter.duckdb_relation <- function(rel, exprs, ...) {
 rel_project.duckdb_relation <- function(rel, exprs, ...) {
   duckdb_exprs <- to_duckdb_exprs(exprs)
 
-  out <- duckdb$rel_project(rel, duckdb_exprs)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_project(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_project(
     !!meta_rel_get(rel)$name,
     list(!!!to_duckdb_exprs_meta(exprs))
-  )))
+  ))))
+
+  out <- duckdb$rel_project(rel, duckdb_exprs)
 
   out
 }
@@ -221,18 +226,20 @@ rel_aggregate.duckdb_relation <- function(rel, groups, aggregates, ...) {
   duckdb_groups <- to_duckdb_exprs(groups)
   duckdb_aggregates <- to_duckdb_exprs(aggregates)
 
+  out <- NULL
+
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_aggregate(
+    !!meta_rel_get(rel)$name,
+    groups = list(!!!to_duckdb_exprs_meta(groups)),
+    aggregates = list(!!!to_duckdb_exprs_meta(aggregates))
+  ))))
+
   out <- duckdb$rel_aggregate(
     rel,
     groups = duckdb_groups,
     aggregates = duckdb_aggregates
   )
 
-  meta_rel_register(out, expr(duckdb$rel_aggregate(
-    !!meta_rel_get(rel)$name,
-    groups = list(!!!to_duckdb_exprs_meta(groups)),
-    aggregates = list(!!!to_duckdb_exprs_meta(aggregates))
-  )))
-
   out
 }
 
@@ -241,12 +248,14 @@ rel_order.duckdb_relation <- function(rel, orders, ascending = NULL, ...) {
 
   duckdb_orders <- to_duckdb_exprs(orders)
 
-  out <- duckdb$rel_order(rel, duckdb_orders, ascending)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_order(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_order(
     !!meta_rel_get(rel)$name,
     list(!!!to_duckdb_exprs_meta(orders))
-  )))
+  ))))
+
+  out <- duckdb$rel_order(rel, duckdb_orders, ascending)
 
   out
 }
@@ -258,26 +267,30 @@ rel_join.duckdb_relation <- function(left, right, conds, join, join_ref_type, ..
     join <- "outer"
   }
 
+  out <- NULL
+  
   if (join_ref_type == "regular") {
     # Compatibility with older duckdb versions
-    out <- duckdb$rel_join(left, right, duckdb_conds, join)
 
-    meta_rel_register(out, expr(duckdb$rel_join(
+    withr::defer(meta_rel_register(out, expr(duckdb$rel_join(
       !!meta_rel_get(left)$name,
       !!meta_rel_get(right)$name,
       list(!!!to_duckdb_exprs_meta(conds)),
       !!join
-    )))
+    ))))
+
+    out <- duckdb$rel_join(left, right, duckdb_conds, join)
   } else {
-    out <- duckdb$rel_join(left, right, duckdb_conds, join, join_ref_type)
 
-    meta_rel_register(out, expr(duckdb$rel_join(
+    withr::defer(meta_rel_register(out, expr(duckdb$rel_join(
       !!meta_rel_get(left)$name,
       !!meta_rel_get(right)$name,
       list(!!!to_duckdb_exprs_meta(conds)),
       !!join,
       !!join_ref_type
-    )))
+    ))))
+
+    out <- duckdb$rel_join(left, right, duckdb_conds, join, join_ref_type)
   }
 
   out
@@ -285,71 +298,83 @@ rel_join.duckdb_relation <- function(left, right, conds, join, join_ref_type, ..
 
 #' @export
 rel_limit.duckdb_relation <- function(rel, n, ...) {
-  out <- duckdb$rel_limit(rel, n)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_limit(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_limit(
     !!meta_rel_get(rel)$name,
     !!n
-  )))
+  ))))
+
+  out <- duckdb$rel_limit(rel, n)
 
   out
 }
 
 #' @export
 rel_distinct.duckdb_relation <- function(rel, ...) {
-  out <- duckdb$rel_distinct(rel)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_distinct(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_distinct(
     !!meta_rel_get(rel)$name
-  )))
+  ))))
+
+  out <- duckdb$rel_distinct(rel)
 
   out
 }
 
 #' @export
 rel_set_intersect.duckdb_relation <- function(rel_a, rel_b, ...) {
-  out <- duckdb$rel_set_intersect(rel_a, rel_b)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_set_intersect(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_set_intersect(
     !!meta_rel_get(rel_a)$name,
     !!meta_rel_get(rel_b)$name
-  )))
+  ))))
+
+  out <- duckdb$rel_set_intersect(rel_a, rel_b)
 
   out
 }
 
 #' @export
 rel_set_diff.duckdb_relation <- function(rel_a, rel_b, ...) {
-  out <- duckdb$rel_set_diff(rel_a, rel_b)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_set_diff(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_set_diff(
     !!meta_rel_get(rel_a)$name,
     !!meta_rel_get(rel_b)$name
-  )))
+  ))))
+
+  out <- duckdb$rel_set_diff(rel_a, rel_b)
 
   out
 }
 
 #' @export
 rel_set_symdiff.duckdb_relation <- function(rel_a, rel_b, ...) {
-  out <- duckdb$rel_set_symdiff(rel_a, rel_b)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_set_symdiff(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_set_symdiff(
     !!meta_rel_get(rel_a)$name,
     !!meta_rel_get(rel_b)$name
-  )))
+  ))))
+
+  out <- duckdb$rel_set_symdiff(rel_a, rel_b)
 
   out
 }
 
 #' @export
 rel_union_all.duckdb_relation <- function(rel_a, rel_b, ...) {
-  out <- duckdb$rel_union_all(rel_a, rel_b)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_union_all(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_union_all(
     !!meta_rel_get(rel_a)$name,
     !!meta_rel_get(rel_b)$name
-  )))
+  ))))
+
+  out <- duckdb$rel_union_all(rel_a, rel_b)
 
   out
 }
@@ -365,12 +390,14 @@ rel_alias.duckdb_relation <- function(rel, ...) {
 
 #' @export
 rel_set_alias.duckdb_relation <- function(rel, alias, ...) {
-  out <- duckdb$rel_set_alias(rel, alias)
+  out <- NULL
 
-  meta_rel_register(out, expr(duckdb$rel_set_alias(
+  withr::defer(meta_rel_register(out, expr(duckdb$rel_set_alias(
     !!meta_rel_get(rel)$name,
     !!alias
-  )))
+  ))))
+
+  out <- duckdb$rel_set_alias(rel, alias)
 
   out
 }