docs: private Map<String, String> initRemoveEmbeddedPropertyQuery(EntityKeyMetadata entityKeyMetadata, TupleTypeContext tupleTypeContext) {
  		if ( tupleTypeContext == null ) {
  			return Collections.emptyMap();
  		}
  		Map<String, String> removeColumn = new HashMap<>();
  		for ( String column : tupleTypeContext.getSelectableColumns() ) {
  			if ( EmbeddedHelper.isPartOfEmbedded( column ) ) {
  				if ( !removeColumn.containsKey( column ) ) {
  					StringBuilder queryBuilder = new StringBuilder();
  					queryBuilder.append( "MATCH " );
  					appendEntityNode( "n", entityKeyMetadata, queryBuilder );
  					String[] path = EmbeddedHelper.split( column );
  					for ( int i = 0; i < path.length - 1; i++ ) {
  						queryBuilder.append( "-[:" );
  						appendRelationshipType( queryBuilder, path[i] );
  						queryBuilder.append( "]->" );
  						if ( i == path.length - 2 ) {
  							queryBuilder.append( "(e:EMBEDDED) " );
  						}
  						else {
  							queryBuilder.append( "(:EMBEDDED) " );
  						}
  					}
  					queryBuilder.append( "REMOVE e." );
  					escapeIdentifier( queryBuilder, path[path.length - 1] );
  					queryBuilder.append( " WITH e " );
  					queryBuilder.append( "MATCH (e)<-[erel]-(a) " );
  					queryBuilder.append( "WHERE length(keys(e))=0 AND NOT ((e)-->()) " );
  					queryBuilder.append( "DELETE e, erel " );
  					queryBuilder.append( "WITH a " );
  					queryBuilder.append( "OPTIONAL MATCH path=(a)<-[r*]-(b:EMBEDDED), (b)<-[brel]-(), (x) " );
  					queryBuilder.append( "WHERE a:EMBEDDED AND length(keys(a))=0 AND NOT((a)<-[*]-(:EMBEDDED)-->())  AND NOT ((a)<-[*]-(x)<-[*]-(b)) AND length(keys(b))>0 " );
  					queryBuilder.append( "FOREACH (r in relationships(path) | DELETE r) " );
  					queryBuilder.append( "FOREACH (n in nodes(path) | DELETE n) " );
  					queryBuilder.append( "WITH a " );
  					queryBuilder.append( "MATCH (a)<-[arel]-() " );
  					queryBuilder.append( "WHERE length(keys(a))=0 AND a:EMBEDDED " );
  					queryBuilder.append( "DELETE arel, a " );
  					removeColumn.put( column, queryBuilder.toString() );
  				}
  			}
  		}
  		return Collections.unmodifiableMap( removeColumn );
  	}