Module rusqlite::vtab[−][src]

This is supported on crate feature vtab only.

Expand description

Create virtual tables.

Follow these steps to create your own virtual table:

Write implementation of VTab and VTabCursor traits.
Create an instance of the Module structure specialized for VTab impl. from step 1.
Register your Module structure using Connection::create_module.
Run a CREATE VIRTUAL TABLE command that specifies the new module in the USING clause.

(See SQLite doc)

Modules

arrayarray

Array Virtual Table.

Structs

Context is used by VTabCursor::column to specify the cell value.

IndexConstraint

WHERE clause constraint.

IndexConstraintAndUsageIter

Iterate on index constraint and its associated usage.

IndexConstraintIter

feature = "vtab"

IndexConstraintUsage

Information about what parameters to pass to VTabCursor::filter.

Pass information into and receive the reply from the VTab::best_index method.

Virtual table module

A column of the ORDER BY clause.

feature = "vtab"

feature = "vtab"

Values iterator.

Wrapper to VTabCursor::filter arguments, the values requested by VTab::best_index.

sqlite3_vtab_cursor

Enums

IndexConstraintOp

Index constraint operator. See Virtual Table Constraint Operator Codes for details.

Traits

Non-eponymous virtual table instance trait.

Virtual table instance trait.

Virtual table cursor trait.

Functions

Dequote string

eponymous_only_module

Create an eponymous only virtual table implementation.

escape_double_quote

Escape double-quote (") character occurrences by doubling them ("").

The boolean can be one of:

read_only_module

Create a read-only virtual table implementation.