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53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include <Parsers/ASTDropFunctionQuery.h>
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#include <Parsers/ASTIdentifier.h>
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#include <Parsers/CommonParsers.h>
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#include <Parsers/ExpressionElementParsers.h>
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#include <Parsers/ParserDropFunctionQuery.h>
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namespace DB
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{
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bool ParserDropFunctionQuery::parseImpl(IParser::Pos & pos, ASTPtr & node, Expected & expected)
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{
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ParserKeyword s_drop(Keyword::DROP);
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ParserKeyword s_function(Keyword::FUNCTION);
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ParserKeyword s_if_exists(Keyword::IF_EXISTS);
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ParserKeyword s_on(Keyword::ON);
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ParserIdentifier function_name_p;
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String cluster_str;
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bool if_exists = false;
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ASTPtr function_name;
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if (!s_drop.ignore(pos, expected))
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return false;
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if (!s_function.ignore(pos, expected))
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return false;
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if (s_if_exists.ignore(pos, expected))
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if_exists = true;
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if (!function_name_p.parse(pos, function_name, expected))
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return false;
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if (s_on.ignore(pos, expected))
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{
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if (!ASTQueryWithOnCluster::parse(pos, cluster_str, expected))
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return false;
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}
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auto drop_function_query = std::make_shared<ASTDropFunctionQuery>();
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drop_function_query->if_exists = if_exists;
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drop_function_query->cluster = std::move(cluster_str);
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node = drop_function_query;
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drop_function_query->function_name = function_name->as<ASTIdentifier &>().name();
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return true;
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}
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}
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