}

  /**
   * 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
   */

	CurrentTable string = "~~~ct~~~" // current table
	Associations string = "~~~as~~~" // associations
)

var (
	currentTable  = Table{Name: CurrentTable}
	PrimaryColumn = Column{Table: CurrentTable, Name: PrimaryKey}
)

// Column quote with name
type Column struct {
	Table string
	Name  string
	Alias string
	Raw   bool
}

// Table quote with name
type Table struct {
	Name  string
	Alias string
	Raw   bool

		"`User__Company`.*":  {"User__Company", "*"},
		`"User__Company".*`:  {"User__Company", "*"},
		`"table"."*"`:        {"", ""},
	} {
		if table, column := matchName(k); table != v[0] || column != v[1] {
			t.Errorf("failed to match value: %v, got %v, expect: %v", k, []string{table, column}, v)
		}
	}

		if len(joinForeignValues) == 0 {
			return nil
		}

		joinResults := rel.JoinTable.MakeSlice().Elem()
		column, values := schema.ToQueryValues(clause.CurrentTable, joinForeignKeys, joinForeignValues)
		if err := tx.Where(clause.IN{Column: column, Values: values}).Find(joinResults.Addr().Interface()).Error; err != nil {
			return err
		}

		// convert join identity map to relation identity map

		builder.WriteByte(' ')
	} else {
		if len(onConflict.Columns) > 0 {
			builder.WriteByte('(')
			for idx, column := range onConflict.Columns {
				if idx > 0 {
					builder.WriteByte(',')
				}
				builder.WriteQuoted(column)
			}
			builder.WriteString(`) `)
		}

		if len(onConflict.TargetWhere.Exprs) > 0 {
			builder.WriteString(" WHERE ")
			onConflict.TargetWhere.Build(builder)

     * @param line The one-based index of the line containing the problem or {@code -1} if unknown.
     * @param column The one-based index of the column containing the problem or {@code -1} if unknown.
     * @param cause The cause of the problem, may be {@code null}.
     */
    void add(Problem.Severity severity, String message, int line, int column, Exception cause);

    /**

    #  Is the column name camel case?
    #  Basically you don't need this if the style of column name is like 'FOO_NAME'.
    #    [true]
    #      The column name is camel case.
    #      e.g. If the column name is 'OrderDetailId', the class name is 'OrderDetailId'.
    #
    #    [false]
    #      e.g. If the column name is 'ORDER_DETAIL_ID', the class name is 'OrderDetailId'.

 * order of the various views.
 *
 * <p>The views returned by {@link #column}, {@link #columnKeySet()}, and {@link #columnMap()} have
 * iterators that don't support {@code remove()}. Otherwise, all optional operations are supported.
 * Null row keys, columns keys, and values are not supported.
 *
 * <p>Lookups by row key are often faster than lookups by column key, because the data is stored in

 * order of the various views.
 *
 * <p>The views returned by {@link #column}, {@link #columnKeySet()}, and {@link #columnMap()} have
 * iterators that don't support {@code remove()}. Otherwise, all optional operations are supported.
 * Null row keys, columns keys, and values are not supported.
 *
 * <p>Lookups by row key are often faster than lookups by column key, because the data is stored in

			if idx > 0 {
				builder.WriteByte(',')
			}

			builder.WriteQuoted(column.Column)
			if column.Desc {
				builder.WriteString(" DESC")
			}
		}
	}
}

// MergeClause merge order by clauses
func (orderBy OrderBy) MergeClause(clause *Clause) {
	if v, ok := clause.Expression.(OrderBy); ok {
		for i := len(orderBy.Columns) - 1; i >= 0; i-- {
			if orderBy.Columns[i].Reorder {