Class Greatest

Declaration

Documentation

If any expression is null the return value is database-specific:
On PostgreSQL, the maximum not-null expression is returned.
On MySQL, Oracle, and SQLite, if any expression is null, null is returned.

Methods

• ▶ def __init__(self, *expressions, **extra) override

  source link

  This method overrides django.db.models.expressions.Func.__init__.

• ▶ def as_sqlite(self, compiler, connection, **extra_context) override

  Use the MAX function on SQLite.

  source link

  This method overrides django.db.models.expressions.SQLiteNumericMixin.as_sqlite.

Inherited methods

• Methods inherited from django.db.models.expressions.Func:
  __repr__, as_sql, copy, get_source_expressions, resolve_expression, set_source_expressions
• Methods inherited from django.db.models.expressions.BaseExpression:
  __eq__, __getstate__, __hash__, asc, conditional, contains_aggregate, contains_column_references, contains_over_clause, convert_value, desc, field, flatten, get_db_converters, get_group_by_cols, get_lookup, get_source_fields, get_transform, identity, output_field, relabeled_clone, reverse_ordering, select_format
• Methods inherited from django.db.models.expressions.Combinable:
  __add__, __and__, __mod__, __mul__, __neg__, __or__, __pow__, __radd__, __rand__, __rmod__, __rmul__, __ror__, __rpow__, __rsub__, __rtruediv__, __sub__, __truediv__, bitand, bitleftshift, bitor, bitrightshift, bitxor

Reexports

• Imported in django.db.models.functions.

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