Sha256: 38bbc8822d729aa693a1829a3f548890200a6b2d5ae23e45050890a5d2962c34

Contents?: true

Size: 374 Bytes

Versions: 6

Compression:

Stored size: 374 Bytes

Contents

Relational heading (print the relation type)

SYNOPSIS

    #(signature)

DESCRIPTION

This operator simply outputs a relation containing one tuple: the heading of 
its operand. 

EXAMPLE

    # What is the heading of the `suppliers` relation?
    !(alf heading suppliers)

    # What is the heading of the following join?
    !(alf join suppliers supplies | alf heading)

Version data entries

6 entries across 6 versions & 1 rubygems

Version Path
alf-0.12.2 doc/operators/relational/heading.md
alf-0.12.1 doc/operators/relational/heading.md
alf-0.12.0 doc/operators/relational/heading.md
alf-0.11.1 doc/operators/relational/heading.md
alf-0.11.0 doc/operators/relational/heading.md
alf-0.10.1 doc/operators/relational/heading.md