return value != null && value.equals(get(rowKey, columnKey));
  }

  /** Remove a row key / column key / value mapping, if present. */
  private boolean removeMapping(
      @Nullable Object rowKey, @Nullable Object columnKey, @Nullable Object value) {
    if (containsMapping(rowKey, columnKey, value)) {
      remove(rowKey, columnKey);
      return true;
    }
    return false;
  }

  // Views

								[]clause.Expression{clause.Eq{clause.Column{Table: "profiles", Name: "email"}, clause.Column{Table: clause.CurrentTable, Name: "email"}}},
							},
						},
					},
				}, clause.From{
					Joins: []clause.Join{
						{
							Type:  clause.InnerJoin,
							Table: clause.Table{Name: "articles"},
							ON: clause.Where{
								[]clause.Expression{clause.Eq{clause.Column{Table: "articles", Name: "id"}, clause.PrimaryColumn}},

     *
     * @return The one-based index of the line containing the error or a non-positive value if unknown.
     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *
     * @return The one-based index of the column containing the error or non-positive value if unknown.
     */
    public int getColumnNumber() {
        return columnNumber;

  }

  /**
   * Returns an immutable cell with the specified row key, column key, and value.
   *
   * <p>The returned cell is serializable.
   *
   * @param rowKey the row key to be associated with the returned cell
   * @param columnKey the column key to be associated with the returned cell
   * @param value the value to be associated with the returned cell
   */

    public void add(SettingsProblem.Severity severity, String message, int line, int column, Exception cause) {
        if (line <= 0 && column <= 0 && cause instanceof SettingsParseException e) {
            line = e.getLineNumber();
            column = e.getColumnNumber();
        }

        SettingsProblem problem = new DefaultSettingsProblem(message, severity, source, line, column, cause);

        problems.add(problem);
    }

			result[k][idx] = v
		}
	}

	sort.Strings(columns)
	values.Values = make([][]interface{}, len(mapValues))
	values.Columns = make([]clause.Column, len(columns))
	for idx, column := range columns {
		values.Columns[idx] = clause.Column{Name: column}

		for i, v := range result[column] {
			if len(values.Values[i]) == 0 {
				values.Values[i] = make([]interface{}, len(columns))
			}

			values.Values[i][idx] = v
		}
	}

# classificationDeploymentMap: (NotRequired - Default map:{})
#
# The relation between column and classification.
#
# This property uses classification names of classificationDefinitionMap.
# The table name '$$ALL$$' means all tables are target.
# The table names and column names are treated as case insensitive.
#
# You don't need specify here about table classifications.

type Values struct {
	Columns []Column
	Values  [][]interface{}
}

// Name from clause name
func (Values) Name() string {
	return "VALUES"
}

// Build build from clause
func (values Values) Build(builder Builder) {
	if len(values.Columns) > 0 {
		builder.WriteByte('(')
		for idx, column := range values.Columns {
			if idx > 0 {
				builder.WriteByte(',')
			}
			builder.WriteQuoted(column)
		}
		builder.WriteByte(')')

#
# And it's one-to-one relation if you add one fixed condition to referrer table, 
# you can set virtual foreign key with fixedCondition and fixedSuffix.
# And you can use it to view objects too.
#
# If local column name is same as foreign column name,
# you can omit the setting of localColumnName and foreignColumnName.
# The names are treated as case insensitive.
#
# Example:
# map:{
#     ; FK_MEMBER_MEMBER_STATUS_CODE = map:{

222E          ; valid                  ;      ; NV8    # 1.1  CONTOUR INTEGRAL
222F          ; mapped                 ; 222E 222E     # 1.1  SURFACE INTEGRAL
2230          ; mapped                 ; 222E 222E 222E #1.1  VOLUME INTEGRAL
2231..22F1    ; valid                  ;      ; NV8    # 1.1  CLOCKWISE INTEGRAL..DOWN RIGHT DIAGONAL ELLIPSIS