Beim Ersetzen einer Tabelle bleibt die bestehende Column Mask einer Spalte mit gleichem Namen erhalten, auch wenn keine Maske angegeben wird, während zuvor alle bisherigen Masken entfernt wurden.
If a column in the new table matches a column name from the original table, its existing column mask is now retained, even if no mask is specified. This change prevents accidental removal of column-level security policies during table replacement. Previously, replacing a table dropped all existing column masks, and only newly defined masks were applied.
This change affects SQL commands ([CREATE OR] REPLACE TABLE), DataFrame APIs (saveAsTable, replace, createOrReplace), and other similar update table operations.
See Manually apply row filters and column masks.