Module config 

Options for Table::view, and details about fields like expressions.

ViewConfig for the top level argument to Table::view.

expressions module for details about the ExprTK format.

Re-exports

pub use crate::proto::ColumnType;

pub use crate::proto::SortOp;

pub use expressions::*;

pub use windows::*;

Modules

expressions

Perspective supports expression columns, which are virtual columns calculated as part of the crate::View, optionally using values from its underlying crate::Table’s columns. Such expression columns are defined in Perspective’s expression language, an extended version of ExprTK, which is itself quite similar (in design and features) to expressions in Excel.

windows

Window columns are ordered, partitioned rolling computations over the rows of a crate::Table, declared per-crate::View like expression columns - the analogue of SQL window functions. Each WindowSpec produces a new output column, named by its key in the windows map ({"name": {...spec}}, symmetric with expressions), which may be used anywhere a Table column can: columns, filter, sort, group_by, etc. Window columns update incrementally as the Table updates, including rows outside an update batch whose window frames were affected by it.

Structs

DefaultStyleAttributes

The default style configurations per type, as retrived by plugin.plugin_attributes

Filter

PluginAttributes

The data needed to populate a column’s settings.

PluginConfig

The configuration which is created as the result of calling plugin.save

Sort

Symbol

SymbolAttributes

ViewConfig

ViewConfigUpdate

Enums

Aggregate

FilterReducer

FilterTerm

GroupRollupMode

Scalar

This type represents the ViewConfig serializable type, which must be JSON safe.

SortDir