thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-21 15:12:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix escaping and add string expressions support

Browse Source
This commit is contained in:
alesapin 2019-12-09 17:05:58 +03:00
parent 39bb8e724c
commit 642ce2d751
3 changed files with 45 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
dbms/src/Dictionaries/getDictionaryConfigurationFromAST.cpp
View File

@ -176,7 +176,7 @@ void buildSingleAttribute(
AutoPtr<Element> null_value_element(doc->createElement("null_value"));
String null_value_str;
if (dict_attr->default_value)
null_value_str = queryToString(dict_attr->default_value);
null_value_str = getUnescapedFieldString(dict_attr->default_value->as<ASTLiteral>()->value);
AutoPtr<Text> null_value(doc->createTextNode(null_value_str));
null_value_element->appendChild(null_value);
attribute_element->appendChild(null_value_element);
@ -184,7 +184,19 @@ void buildSingleAttribute(
if (dict_attr->expression != nullptr)
{
AutoPtr<Element> expression_element(doc->createElement("expression"));
AutoPtr<Text> expression(doc->createTextNode(queryToString(dict_attr->expression)));
/// Expression should be function or string
String expression_str;
if (const auto * literal = dict_attr->expression->as<ASTLiteral>();
literal && literal->value.getType() == Field::Types::String)
{
expression_str = getUnescapedFieldString(literal->value);
}
else
expression_str = queryToString(dict_attr->expression);
AutoPtr<Text> expression(doc->createTextNode(expression_str));
expression_element->appendChild(expression);
attribute_element->appendChild(expression_element);
}

4
dbms/tests/queries/0_stateless/01043_dictionary_attribute_properties_values.reference Normal file
View File

@ -0,0 +1,4 @@
hello
world
21844
xxx

27
dbms/tests/queries/0_stateless/01043_dictionary_attribute_properties_values.sql Normal file
View File

@ -0,0 +1,27 @@
DROP DATABASE IF EXISTS dictdb;
CREATE DATABASE dictdb Engine = Ordinary;
CREATE TABLE dictdb.dicttbl(key Int64, value_default String, value_expression String) ENGINE = MergeTree ORDER BY tuple();
INSERT INTO dictdb.dicttbl VALUES (12, 'hello', '55:66:77');
CREATE DICTIONARY dictdb.dict
(
key Int64 DEFAULT -1,
value_default String DEFAULT 'world',
value_expression String DEFAULT 'xxx' EXPRESSION 'toString(127 * 172)'
)
PRIMARY KEY key
SOURCE(CLICKHOUSE(HOST 'localhost' PORT 9000 USER 'default' TABLE 'dicttbl' DB 'dictdb'))
LAYOUT(FLAT())
LIFETIME(1);
SELECT dictGetString('dictdb.dict', 'value_default', toUInt64(12));
SELECT dictGetString('dictdb.dict', 'value_default', toUInt64(14));
SELECT dictGetString('dictdb.dict', 'value_expression', toUInt64(12));
SELECT dictGetString('dictdb.dict', 'value_expression', toUInt64(14));
DROP DATABASE IF EXISTS dictdb;