1RDF::Query::Expression(U3s)er Contributed Perl DocumentatRiDoFn::Query::Expression(3)
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6 RDF::Query::Expression - Class for Expr expressions
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9 This document describes RDF::Query::Expression version 2.918.
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12 "new ( $op, @operands )"
13 Returns a new Expr structure.
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15 "construct_args"
16 Returns a list of arguments that, passed to this class'
17 constructor, will produce a clone of this algebra pattern.
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19 "op"
20 Returns the operator of the expression.
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22 "operands"
23 Returns a list of the operands of the expression.
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25 "sse"
26 Returns the SSE string for this algebra expression.
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28 "explain"
29 Returns a string serialization of the expression appropriate for
30 display on the command line. This method is primarily used by the
31 "explain" method of the subclasses of RDF::Query::Plan.
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33 "as_hash"
34 Returns the expression as a nested set of plain data structures (no
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37 "type"
38 Returns the type of this algebra expression.
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40 "referenced_variables"
41 Returns a list of the variable names used in this algebra
42 expression.
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44 "nonaggregated_referenced_variables"
45 Returns a list of the variable names used in this algebra
46 expression except those used as aliases for aggregate operations.
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49 Gregory Todd Williams <gwilliams@cpan.org>
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53perl v5.34.0 2021-07-22 RDF::Query::Expression(3)