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46 lines
1.2 KiB
C++
46 lines
1.2 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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/** Cases:
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*
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* Normal case:
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* INSERT INTO [db.]table (c1, c2, c3) VALUES (v11, v12, v13), (v21, v22, v23), ...
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* INSERT INTO [db.]table VALUES (v11, v12, v13), (v21, v22, v23), ...
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*
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* Insert of data in an arbitrary format.
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* The data itself comes after LF(line feed), if it exists, or after all the whitespace characters, otherwise.
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* INSERT INTO [db.]table (c1, c2, c3) FORMAT format \n ...
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* INSERT INTO [db.]table FORMAT format \n ...
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*
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* Insert the result of the SELECT or WATCH query.
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* INSERT INTO [db.]table (c1, c2, c3) SELECT | WATCH ...
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* INSERT INTO [db.]table SELECT | WATCH ...
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*/
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class ParserInsertQuery : public IParserBase
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{
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private:
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const char * end;
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const char * getName() const override { return "INSERT query"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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public:
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ParserInsertQuery(const char * end_) : end(end_) {}
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};
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/** Insert accepts an identifier and an asterisk with variants.
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*/
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class ParserInsertElement : public IParserBase
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{
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protected:
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const char * getName() const override { return "insert element"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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}
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