Flutter: Column is a value

A check for exact equality (null, true, false), finds all rows whose value on the stated column exactly match the specified value.

is_ and in_ filter methods are suffixed with _ to avoid collisions with reserved keywords.

Examples

With `select()`

final data = await supabase
  .from('cities')
  .select('name, country_id')
  .is_('name', null);

With `update()`

final data = await supabase
  .from('cities')
  .update(\{ 'name': 'Mordor' \})
  .is_('name', null);

With `delete()`

final data = await supabase
  .from('cities')
  .delete()
  .is_('name', null);

With `rpc()`

// Only valid if the Stored Procedure returns a table type.
final data = await supabase
  .rpc('echo_all_cities')
  .is_('name', null);