mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-02 12:32:04 +00:00
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include <Parsers/ASTDropFunctionQuery.h>
|
|
#include <Parsers/ASTIdentifier.h>
|
|
#include <Parsers/CommonParsers.h>
|
|
#include <Parsers/ExpressionElementParsers.h>
|
|
#include <Parsers/ParserDropFunctionQuery.h>
|
|
|
|
namespace DB
|
|
{
|
|
|
|
bool ParserDropFunctionQuery::parseImpl(IParser::Pos & pos, ASTPtr & node, Expected & expected)
|
|
{
|
|
ParserKeyword s_drop(Keyword::DROP);
|
|
ParserKeyword s_function(Keyword::FUNCTION);
|
|
ParserKeyword s_if_exists(Keyword::IF_EXISTS);
|
|
ParserKeyword s_on(Keyword::ON);
|
|
ParserIdentifier function_name_p;
|
|
|
|
String cluster_str;
|
|
bool if_exists = false;
|
|
|
|
ASTPtr function_name;
|
|
|
|
if (!s_drop.ignore(pos, expected))
|
|
return false;
|
|
|
|
if (!s_function.ignore(pos, expected))
|
|
return false;
|
|
|
|
if (s_if_exists.ignore(pos, expected))
|
|
if_exists = true;
|
|
|
|
if (!function_name_p.parse(pos, function_name, expected))
|
|
return false;
|
|
|
|
if (s_on.ignore(pos, expected))
|
|
{
|
|
if (!ASTQueryWithOnCluster::parse(pos, cluster_str, expected))
|
|
return false;
|
|
}
|
|
|
|
auto drop_function_query = std::make_shared<ASTDropFunctionQuery>();
|
|
drop_function_query->if_exists = if_exists;
|
|
drop_function_query->cluster = std::move(cluster_str);
|
|
|
|
node = drop_function_query;
|
|
|
|
drop_function_query->function_name = function_name->as<ASTIdentifier &>().name();
|
|
|
|
return true;
|
|
}
|
|
|
|
}
|