pgr_dijkstra

Button	Action
	Opens the web page of the documentation of pgr_dijkstra
	Choose pgr_dijkstra on the drop down box

Edges SQL tab

Field	Action
	Write the table name of the edges
	Write the schema of the edge table
	Write the geometry column name
	Tick to use the Bounding Box of the QGIS canvas to limit the rows of edge table

Columns

Field	Action
	Write the column that has the edge identifier
	Write the column that has the edge source
	Write the column that has the edge target
	Write the column that has the cost of the edge source -> target
	Write the column that has the cost of the edge target -> source, the column will be used when the box is ticked

Arguments tab

Field	Action
	Choose with or write the comma separated identifiers of the start vertices
	Choose with or write the comma separated identifiers of the destination vertices
	Tick if the graph is directed

Execute tab

Button	Action
	Draws in the canvas the resulting path
	Removes from the canvas objects generated with Preview
	Creates a one row per edge line geometry layer
	Creates a one row per path multiline geometry layer. As many rows as needed

Depending on the pressed button the layer name will be

(<U|D>) pgr_dijkstra: <source_id>  to <target_id>  BBOX(<bbox>)
(M <U|D>) pgr_dijkstra: <source_id>  to <target_id>  BBOX(<bbox>)