mirror of
https://github.com/ClickHouse/ClickHouse.git
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100 lines
3.4 KiB
C++
100 lines
3.4 KiB
C++
#pragma once
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#include <Parsers/ASTQueryWithTableAndOutput.h>
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#include <Common/quoteString.h>
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namespace DB
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{
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struct ASTExistsTableQueryIDAndQueryNames
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{
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static constexpr auto ID = "ExistsTableQuery";
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static constexpr auto Query = "EXISTS TABLE";
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static constexpr auto QueryTemporary = "EXISTS TEMPORARY TABLE";
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};
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struct ASTExistsDictionaryQueryIDAndQueryNames
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{
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static constexpr auto ID = "ExistsDictionaryQuery";
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static constexpr auto Query = "EXISTS DICTIONARY";
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/// No temporary dictionaries are supported, just for parsing
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static constexpr auto QueryTemporary = "EXISTS TEMPORARY DICTIONARY";
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};
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struct ASTShowCreateTableQueryIDAndQueryNames
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{
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static constexpr auto ID = "ShowCreateTableQuery";
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static constexpr auto Query = "SHOW CREATE TABLE";
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static constexpr auto QueryTemporary = "SHOW CREATE TEMPORARY TABLE";
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};
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struct ASTShowCreateDatabaseQueryIDAndQueryNames
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{
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static constexpr auto ID = "ShowCreateDatabaseQuery";
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static constexpr auto Query = "SHOW CREATE DATABASE";
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static constexpr auto QueryTemporary = "SHOW CREATE TEMPORARY DATABASE";
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};
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struct ASTShowCreateDictionaryQueryIDAndQueryNames
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{
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static constexpr auto ID = "ShowCreateDictionaryQuery";
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static constexpr auto Query = "SHOW CREATE DICTIONARY";
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/// No temporary dictionaries are supported, just for parsing
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static constexpr auto QueryTemporary = "SHOW CREATE TEMPORARY DICTIONARY";
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};
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struct ASTDescribeQueryExistsQueryIDAndQueryNames
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{
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static constexpr auto ID = "DescribeQuery";
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static constexpr auto Query = "DESCRIBE TABLE";
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static constexpr auto QueryTemporary = "DESCRIBE TEMPORARY TABLE";
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};
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using ASTExistsTableQuery = ASTQueryWithTableAndOutputImpl<ASTExistsTableQueryIDAndQueryNames>;
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using ASTExistsDictionaryQuery = ASTQueryWithTableAndOutputImpl<ASTExistsDictionaryQueryIDAndQueryNames>;
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using ASTShowCreateTableQuery = ASTQueryWithTableAndOutputImpl<ASTShowCreateTableQueryIDAndQueryNames>;
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using ASTShowCreateDictionaryQuery = ASTQueryWithTableAndOutputImpl<ASTShowCreateDictionaryQueryIDAndQueryNames>;
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class ASTShowCreateDatabaseQuery : public ASTQueryWithTableAndOutputImpl<ASTShowCreateDatabaseQueryIDAndQueryNames>
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{
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protected:
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void formatQueryImpl(const FormatSettings & settings, FormatState &, FormatStateStacked) const override
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "") << ASTShowCreateDatabaseQueryIDAndQueryNames::Query
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<< " " << (settings.hilite ? hilite_none : "") << backQuoteIfNeed(database);
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}
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};
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class ASTDescribeQuery : public ASTQueryWithOutput
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{
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public:
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ASTPtr table_expression;
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String getID(char) const override { return "DescribeQuery"; }
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ASTPtr clone() const override
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{
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auto res = std::make_shared<ASTDescribeQuery>(*this);
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res->children.clear();
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if (table_expression)
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{
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res->table_expression = table_expression->clone();
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res->children.push_back(res->table_expression);
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}
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cloneOutputOptions(*res);
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return res;
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}
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protected:
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void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override
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{
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settings.ostr << (settings.hilite ? hilite_keyword : "")
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<< "DESCRIBE TABLE " << (settings.hilite ? hilite_none : "");
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table_expression->formatImpl(settings, state, frame);
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}
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};
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}
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