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63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
#pragma once
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#include <Parsers/IAST.h>
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#include <Parsers/ASTQueryWithTableAndOutput.h>
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#include <Parsers/ASTQueryWithOnCluster.h>
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namespace DB
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{
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/** OPTIMIZE query
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*/
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class ASTOptimizeQuery : public ASTQueryWithTableAndOutput, public ASTQueryWithOnCluster
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{
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public:
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/// The partition to optimize can be specified.
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ASTPtr partition;
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/// A flag can be specified - perform optimization "to the end" instead of one step.
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bool final = false;
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/// Do deduplicate (default: false)
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bool deduplicate = false;
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/// Deduplicate by columns.
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ASTPtr deduplicate_by_columns;
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/// Delete 'is_deleted' data
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bool cleanup = false;
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/** Get the text that identifies this element. */
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String getID(char delim) const override
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{
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return "OptimizeQuery" + (delim + getDatabase()) + delim + getTable() + (final ? "_final" : "") + (deduplicate ? "_deduplicate" : "")+ (cleanup ? "_cleanup" : "");
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}
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ASTPtr clone() const override
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{
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auto res = std::make_shared<ASTOptimizeQuery>(*this);
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res->children.clear();
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if (partition)
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{
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res->partition = partition->clone();
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res->children.push_back(res->partition);
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}
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if (deduplicate_by_columns)
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{
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res->deduplicate_by_columns = deduplicate_by_columns->clone();
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res->children.push_back(res->deduplicate_by_columns);
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}
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return res;
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}
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void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
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ASTPtr getRewrittenASTWithoutOnCluster(const WithoutOnClusterASTRewriteParams & params) const override
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{
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return removeOnCluster<ASTOptimizeQuery>(clone(), params.default_database);
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}
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QueryKind getQueryKind() const override { return QueryKind::Optimize; }
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};
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}
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