mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-26 09:32:01 +00:00
59844b0a9d
Accepts CH client queries in the form of SHOW FUNCTIONS [LIKE | ILIKE '< pattern>'] Retrieves all columns from `functions` table in system database. Fixes #52757
36 lines
920 B
C++
36 lines
920 B
C++
#include <Parsers/ParserShowFunctionsQuery.h>
|
|
|
|
#include <Parsers/ASTLiteral.h>
|
|
#include <Parsers/ASTShowFunctionsQuery.h>
|
|
#include <Parsers/CommonParsers.h>
|
|
#include <Parsers/ExpressionElementParsers.h>
|
|
|
|
namespace DB
|
|
{
|
|
|
|
bool ParserShowFunctionsQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
|
|
{
|
|
ASTPtr like;
|
|
|
|
auto query = std::make_shared<ASTShowFunctionsQuery>();
|
|
if (!ParserKeyword("SHOW FUNCTIONS").ignore(pos, expected))
|
|
return false;
|
|
|
|
if (bool insensitive = ParserKeyword("ILIKE").ignore(pos, expected); insensitive || ParserKeyword("LIKE").ignore(pos, expected))
|
|
{
|
|
if (insensitive)
|
|
query->case_insensitive_like = true;
|
|
|
|
if (!ParserStringLiteral().parse(pos, like, expected))
|
|
return false;
|
|
}
|
|
|
|
if (like)
|
|
query->like = like->as<ASTLiteral &>().value.safeGet<const String &>();
|
|
node = query;
|
|
|
|
return true;
|
|
}
|
|
|
|
}
|