Kouhei Sutou 2019-03-04 18:09:15 +0900 (Mon, 04 Mar 2019) Revision: 2dd0e4ab05c5e5f79f747899b892f8c6ead70a4a https://github.com/groonga/groonga/commit/2dd0e4ab05c5e5f79f747899b892f8c6ead70a4a Message: expr optimize: add support for null Added files: lib/mrb/scripts/expression_tree/null.rb Modified files: lib/mrb/scripts/expression_tree.rb lib/mrb/scripts/expression_tree/sources.am lib/mrb/scripts/expression_tree_builder.rb Modified: lib/mrb/scripts/expression_tree.rb (+1 -0) =================================================================== --- lib/mrb/scripts/expression_tree.rb 2019-03-04 18:02:55 +0900 (fcf21cc69) +++ lib/mrb/scripts/expression_tree.rb 2019-03-04 18:09:15 +0900 (8901950c1) @@ -7,6 +7,7 @@ require "expression_tree/function_call" require "expression_tree/index_column" require "expression_tree/logical_operation" require "expression_tree/member" +require "expression_tree/null" require "expression_tree/procedure" require "expression_tree/reference" require "expression_tree/table" Added: lib/mrb/scripts/expression_tree/null.rb (+17 -0) 100644 =================================================================== --- /dev/null +++ lib/mrb/scripts/expression_tree/null.rb 2019-03-04 18:09:15 +0900 (0cb3554c8) @@ -0,0 +1,17 @@ +module Groonga + module ExpressionTree + class Null + def build(expression) + expression.append_constant(nil, Operator::PUSH, 1) + end + + def estimatable? + true + end + + def estimate_size(table) + 0 + end + end + end +end Modified: lib/mrb/scripts/expression_tree/sources.am (+1 -0) =================================================================== --- lib/mrb/scripts/expression_tree/sources.am 2019-03-04 18:02:55 +0900 (46caed209) +++ lib/mrb/scripts/expression_tree/sources.am 2019-03-04 18:09:15 +0900 (9e4b115ad) @@ -8,6 +8,7 @@ RUBY_SCRIPT_FILES = \ index_column.rb \ logical_operation.rb \ member.rb \ + null.rb \ procedure.rb \ reference.rb \ table.rb \ Modified: lib/mrb/scripts/expression_tree_builder.rb (+2 -0) =================================================================== --- lib/mrb/scripts/expression_tree_builder.rb 2019-03-04 18:02:55 +0900 (076f3e26f) +++ lib/mrb/scripts/expression_tree_builder.rb 2019-03-04 18:09:15 +0900 (75af9395f) @@ -142,6 +142,8 @@ module Groonga node = ExpressionTree::Accessor.new(code.value) when Table node = ExpressionTree::Table.new(code.value) + when Void + node = ExpressionTree::Null.new else node = ExpressionTree::Constant.new(code.value.value) end -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.osdn.me/mailman/archives/groonga-commit/attachments/20190304/c685c215/attachment-0001.html>
