Table: filter_expr

Contains the conditions names and expressions of the filtering system.

> Columns

• expr_id: integer (not null)
  Primary key

• name: varchar(100)
  Condition's name

• user_lastmod: integer
  Id of the last user who has modified the condition. This is a foreign key to users.user_id.

• last_update: timestamptz
  Date of the last update of the row.

• expression: text
  Text of the expression. This is what is evaluated by the filtering system to compute whether the condition is true or false.