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67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
#pragma once
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#include <Parsers/IParserBase.h>
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#include <Parsers/ParserSetQuery.h>
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namespace DB
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{
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/// Parser for dictionary lifetime part. It should contain "lifetime" keyword,
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/// opening bracket, literal value or two pairs and closing bracket:
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/// lifetime(300), lifetime(min 100 max 200). Produces ASTDictionaryLifetime.
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class ParserDictionaryLifetime : public IParserBase
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{
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protected:
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const char * getName() const override { return "lifetime definition"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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/// Parser for dictionary range part. It should contain "range" keyword opening
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/// bracket, two pairs and closing bracket: range(min attr1 max attr2). Produces
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/// ASTDictionaryRange.
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class ParserDictionaryRange : public IParserBase
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{
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protected:
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const char * getName() const override { return "range definition"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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/// Parser for dictionary layout part. It should contain "layout" keyword,
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/// opening bracket, possible pair with param value and closing bracket:
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/// layout(type()) or layout(type(param value)). Produces ASTDictionaryLayout.
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class ParserDictionaryLayout : public IParserBase
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{
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protected:
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const char * getName() const override { return "layout definition"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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class ParserDictionarySettings: public IParserBase
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{
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protected:
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const char * getName() const override { return "settings definition"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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/// Combines together all parsers from above and also parses primary key and
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/// dictionary source, which consists of custom key-value pairs:
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///
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/// PRIMARY KEY key_column1, key_column2
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/// SOURCE(MYSQL(HOST 'localhost' PORT 9000 USER 'default' REPLICA(HOST '127.0.0.1' PRIORITY 1) PASSWORD ''))
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/// LAYOUT(CACHE(size_in_cells 50))
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/// LIFETIME(MIN 1 MAX 10)
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/// RANGE(MIN second_column MAX third_column)
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///
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/// Produces ASTDictionary.
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class ParserDictionary : public IParserBase
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{
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protected:
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const char * getName() const override { return "dictionary definition"; }
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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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