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#pragma once
#include <Parsers/IAST_fwd.h>
#include <Core/Block.h>
#include <Core/NamesAndTypes.h>
#include <Interpreters/Aliases.h>
#include <Interpreters/SelectQueryOptions.h>
#include <Interpreters/DatabaseAndTableWithAlias.h>
#include <Storages/IStorage_fwd.h>
#include <Interpreters/TreeCNFConverter.h>
namespace DB
{
struct StorageInMemoryMetadata;
using StorageMetadataPtr = std::shared_ptr<const StorageInMemoryMetadata>;
/// Optimizer that extracts constraints that
/// depends only on columns of primary key
/// and tries to add function 'indexHint' to
/// WHERE clause, which reduces amount of read data.
class AddIndexConstraintsOptimizer final
{
public:
explicit AddIndexConstraintsOptimizer(const StorageMetadataPtr & metadata_snapshot);
void perform(CNFQuery & cnf_query);
private:
const StorageMetadataPtr & metadata_snapshot;
};
}
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