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76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
#include <Parsers/ParserCreateFunctionQuery.h>
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#include <Parsers/ASTCreateFunctionQuery.h>
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#include <Parsers/ASTExpressionList.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/ExpressionListParsers.h>
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namespace DB
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{
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bool ParserCreateFunctionQuery::parseImpl(IParser::Pos & pos, ASTPtr & node, Expected & expected)
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{
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ParserKeyword s_create("CREATE");
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ParserKeyword s_function("FUNCTION");
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ParserKeyword s_or_replace("OR REPLACE");
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ParserKeyword s_if_not_exists("IF NOT EXISTS");
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ParserKeyword s_on("ON");
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ParserIdentifier function_name_p;
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ParserKeyword s_as("AS");
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ParserExpression lambda_p;
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ASTPtr function_name;
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ASTPtr function_core;
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String cluster_str;
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bool or_replace = false;
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bool if_not_exists = false;
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if (!s_create.ignore(pos, expected))
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return false;
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if (s_or_replace.ignore(pos, expected))
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or_replace = true;
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if (!s_function.ignore(pos, expected))
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return false;
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if (!or_replace && s_if_not_exists.ignore(pos, expected))
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if_not_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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if (!s_as.ignore(pos, expected))
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return false;
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if (!lambda_p.parse(pos, function_core, expected))
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return false;
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auto create_function_query = std::make_shared<ASTCreateFunctionQuery>();
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node = create_function_query;
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create_function_query->function_name = function_name;
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create_function_query->children.push_back(function_name);
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create_function_query->function_core = function_core;
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create_function_query->children.push_back(function_core);
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create_function_query->or_replace = or_replace;
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create_function_query->if_not_exists = if_not_exists;
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create_function_query->cluster = std::move(cluster_str);
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return true;
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}
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}
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