fix: null filtering on embed when column=relation #1843

Job	Run time
Build MacOS (Nix)	16m 25s
Build Linux (Cabal, GHC 9.0.2)	26m 8s
Build Linux (Cabal, GHC 9.2.4)	19m 53s
Build aarch64 (Cabal, GHC ${{ matrix.ghc }})	0s
Build Linux (Stack)	3m 34s
Build MacOS (Stack)	5m 9s
Build Windows (Stack)	10m 13s
Get FreeBSD build from CirrusCI	6m 20s
Build Linux static (Nix)	7m 42s
Lint & check code style	1m 54s
Test memory (Nix)	5m 56s
Test (Nix)	9m 29s
Test PG 9.6 (Nix)	5m 15s
Test PG 10 (Nix)	7m 11s
Test PG 11 (Nix)	6m 1s
Test PG 12 (Nix)	7m 41s
Test PG 13 (Nix)	6m 5s
Test PG 14 (Nix)	6m 24s
Test PG 15 (Nix)	7m 43s
Prepare release	0s
Release on Docker Hub	0s
Release on GitHub	0s
Release Arm Builds on Docker Hub	0s
Remove copied files from server	0s
	2h 39m 3s

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