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#pragma once
#include <Interpreters/InDepthNodeVisitor.h>
#include <Interpreters/Aliases.h>
namespace DB
{
class ASTSelectQuery;
struct TableWithColumnNamesAndTypes;
/** Replaces tuple comparisons with multiple comparisons.
*
* Example: SELECT id FROM test_table WHERE (id, value) = (1, 'Value');
* Result: SELECT id FROM test_table WHERE id = 1 AND value = 'Value';
*/
class ComparisonTupleEliminationMatcher
{
public:
struct Data {};
static bool needChildVisit(ASTPtr &, const ASTPtr &);
static void visit(ASTPtr & ast, Data & data);
};
using ComparisonTupleEliminationVisitor = InDepthNodeVisitor<ComparisonTupleEliminationMatcher, true>;
}
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