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56 lines
729 B
C++
56 lines
729 B
C++
#pragma once
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#include <string>
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#include <unordered_map>
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#include <DB/Parsers/IAST.h>
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namespace DB
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{
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enum class ColumnDefaultType
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{
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Default,
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Materialized,
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Alias
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};
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}
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namespace std
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{
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template<> struct hash<DB::ColumnDefaultType>
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{
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size_t operator()(const DB::ColumnDefaultType type) const
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{
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return hash<int>{}(static_cast<int>(type));
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}
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};
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}
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namespace DB
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{
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ColumnDefaultType columnDefaultTypeFromString(const std::string & str);
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std::string toString(const ColumnDefaultType type);
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struct ColumnDefault
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{
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ColumnDefaultType type;
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ASTPtr expression;
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};
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bool operator==(const ColumnDefault & lhs, const ColumnDefault & rhs);
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using ColumnDefaults = std::unordered_map<std::string, ColumnDefault>;
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}
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