MCOL-5675: null safe#3760

mariadb-LeonidFedorov wants to merge 3 commits intostable-23.10mariadb-corporation/mariadb-columnstore-engine:stable-23.10from

MCOL-5675-null-safemariadb-corporation/mariadb-columnstore-engine:MCOL-5675-null-safeCopy head branch name to clipboard