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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#pragma once
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#include <Parsers/IParserBase.h>
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namespace DB
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{
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/** List of single or multiple JOIN-ed tables or subqueries in SELECT query, with ARRAY JOINs and SAMPLE, FINAL modifiers.
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*/
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class ParserTablesInSelectQuery : public IParserBase
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{
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protected:
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const char * getName() const { return "table, table function, subquery or list of joined tables"; }
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bool parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected);
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};
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class ParserTablesInSelectQueryElement : public IParserBase
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{
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public:
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ParserTablesInSelectQueryElement(bool is_first) : is_first(is_first) {}
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protected:
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const char * getName() const { return "table, table function, subquery or list of joined tables"; }
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bool parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected);
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private:
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bool is_first;
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};
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class ParserTableExpression : public IParserBase
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{
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protected:
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const char * getName() const { return "table or subquery or table function"; }
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bool parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected);
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};
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class ParserArrayJoin : public IParserBase
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{
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protected:
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const char * getName() const { return "array join"; }
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bool parseImpl(Pos & pos, Pos end, ASTPtr & node, Pos & max_parsed_pos, Expected & expected);
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};
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}
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