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rdf::query::algebra::aggregate(3pm) [debian man page]

RDF::Query::Algebra::Aggregate(3pm)			User Contributed Perl Documentation		       RDF::Query::Algebra::Aggregate(3pm)

NAME

       RDF::Query::Algebra::Aggregate - Algebra class for aggregate patterns

VERSION

       This document describes RDF::Query::Algebra::Aggregate version 2.908.

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Query::Algebra class.

       "new ( $pattern, @groupby, $alias =" [$op => $col] )>
       "new ( $pattern, @groupby, expressions =" [ $alias => [$op, \%options, @cols] ] )>
	   Returns a new Aggregate structure. Groups by the named bindings in @groupby, and returns new bindings for the named $alias for the
	   operation $op on column $col.

	   $op may be one of: COUNT, MIN, MAX, SUM.

       "construct_args"
	   Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.

       "pattern"
	   Returns the aggregates pattern.

       "groupby"
	   Returns the aggregate's GROUP BY binding names.

       "ops"
	   Returns a list of tuples as ARRAY refs containing "$alias, $op, @cols".

       "sse"
	   Returns the SSE string for this algebra expression.

       "as_sparql"
	   Returns the SPARQL string for this algebra expression.

       "as_hash"
	   Returns the query as a nested set of plain data structures (no objects).

       "type"
	   Returns the type of this algebra expression.

       "referenced_variables"
	   Returns a list of the variable names used in this algebra expression.

       "potentially_bound"
	   Returns a list of the variable names used in this algebra expression that will bind values during execution.

       "definite_variables"
	   Returns a list of the variable names that will be bound after evaluating this algebra expression.

AUTHOR

	Gregory Todd Williams <gwilliams@cpan.org>

perl v5.14.2							    2012-01-31				       RDF::Query::Algebra::Aggregate(3pm)

Check Out this Related Man Page

RDF::Query::Algebra::Union(3pm) 			User Contributed Perl Documentation			   RDF::Query::Algebra::Union(3pm)

NAME

       RDF::Query::Algebra::Union - Algebra class for Union patterns

VERSION

       This document describes RDF::Query::Algebra::Union version 2.908.

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Query::Algebra class.

       "new ( $left, $right )"
	   Returns a new Union structure.

       "construct_args"
	   Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.

       "first"
	   Returns the first pattern (LHS) of the union.

       "second"
	   Returns the second pattern (RHS) of the union.

       "patterns"
	   Returns the two patterns belonging to the UNION pattern.

       "sse"
	   Returns the SSE string for this algebra expression.

       "as_sparql"
	   Returns the SPARQL string for this algebra expression.

       "as_hash"
	   Returns the query as a nested set of plain data structures (no objects).

       "type"
	   Returns the type of this algebra expression.

       "referenced_variables"
	   Returns a list of the variable names used in this algebra expression.

       "potentially_bound"
	   Returns a list of the variable names used in this algebra expression that will bind values during execution.

       "definite_variables"
	   Returns a list of the variable names that will be bound after evaluating this algebra expression.

AUTHOR

	Gregory Todd Williams <gwilliams@cpan.org>

perl v5.14.2							    2012-01-31					   RDF::Query::Algebra::Union(3pm)
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