message: More involved memory usage test
diff: @@ -14,6 +14,7 @@ CREATE FUNCTION memory_usage_to_bytes(x) AS CASE
  WHEN CONTAINS(x, 'TB') THEN REPLACE(x, 'TB', '')::INT * 1000 * 1000 * 1000 * 1000
  ELSE x::INT END
  +# regular table
  statement ok
  create table integers(i integer);
  @@ -32,6 +33,7 @@ SELECT memory_usage_to_bytes(current_usage.memory_usage) * 10 < base_memory.usag
  ----
  true
  +# table with primary key
  statement ok
  create table integers(i integer primary key);
  @@ -51,6 +53,6 @@ DROP TABLE integers
  # verify that the memory dropped again
  query I
  -SELECT memory_usage_to_bytes(current_usage.memory_usage) * 10 < base_memory.usage FROM pragma_database_size() current_usage, base_memory;
  +SELECT memory_usage_to_bytes(current_usage.memory_usage) * 10 < index_memory.usage FROM pragma_database_size() current_usage, index_memory;
  ----
  true
  