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39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
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#pragma once
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#include <Parsers/IAST_fwd.h>
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#include <Core/Block.h>
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#include <Core/NamesAndTypes.h>
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#include <Interpreters/Aliases.h>
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#include <Interpreters/SelectQueryOptions.h>
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#include <Interpreters/DatabaseAndTableWithAlias.h>
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#include <Storages/IStorage_fwd.h>
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namespace DB
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{
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struct StorageInMemoryMetadata;
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using StorageMetadataPtr = std::shared_ptr<const StorageInMemoryMetadata>;
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class SubstituteColumnOptimizer
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{
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public:
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SubstituteColumnOptimizer(
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ASTSelectQuery * select_query,
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Aliases & /* aliases */, const NameSet & /* source_columns_set */,
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const std::vector<TableWithColumnNamesAndTypes> & /* tables_with_columns */,
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const StorageMetadataPtr & /* metadata_snapshot */,
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const ConstStoragePtr & storage);
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void perform();
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private:
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ASTSelectQuery * select_query;
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/*Aliases & aliases;
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const NameSet & source_columns_set;
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const std::vector<TableWithColumnNamesAndTypes> & tables_with_columns;*/
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const StorageMetadataPtr & metadata_snapshot;
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ConstStoragePtr storage;
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};
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}
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