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fix read extra bytes when with separator

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This commit is contained in:
zhang2014 2020-06-22 21:30:55 +08:00
parent ee2ca536ff
commit b820cfb3b6
3 changed files with 23 additions and 2 deletions
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14
src/IO/ReadHelpers.h
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@ -634,12 +634,22 @@ inline bool tryReadDateText(DayNum & date, ReadBuffer & buf)
inline void readUUIDText(UUID & uuid, ReadBuffer & buf)
{
char s[36];
size_t size = buf.read(s, 36);
size_t size = buf.read(s, 32);
if (size >= 32)
if (size == 32)
{
if (s[8] == '-')
{
size += buf.read(&s[32], 4);
if (size != 36)
{
s[size] = 0;
throw Exception(std::string("Cannot parse uuid ") + s, ErrorCodes::CANNOT_PARSE_UUID);
}
parseUUID<true>(reinterpret_cast<const UInt8 *>(s), std::reverse_iterator<UInt8 *>(reinterpret_cast<UInt8 *>(&uuid) + 16));
}
else
parseUUID<false>(reinterpret_cast<const UInt8 *>(s), std::reverse_iterator<UInt8 *>(reinterpret_cast<UInt8 *>(&uuid) + 16));
}

2
tests/queries/0_stateless/01338_uuid_without_separator.reference
View File

@ -1,2 +1,4 @@
417ddc5d-e556-4d27-95dd-a34d84e46a50
417ddc5d-e556-4d27-95dd-a34d84e46a50
1 417ddc5d-e556-4d27-95dd-a34d84e46a50 Example 1
2 417ddc5d-e556-4d27-95dd-a34d84e46a51 Example 2

9
tests/queries/0_stateless/01338_uuid_without_separator.sql
View File

@ -1,2 +1,11 @@
SELECT toUUID('417ddc5de5564d2795dda34d84e46a50');
SELECT toUUID('417ddc5d-e556-4d27-95dd-a34d84e46a50');
DROP TABLE IF EXISTS t_uuid;
CREATE TABLE t_uuid (x UInt8, y UUID, z String) ENGINE = TinyLog;
INSERT INTO t_uuid VALUES (1, '417ddc5de5564d2795dda34d84e46a50', 'Example 1');
INSERT INTO t_uuid VALUES (2, '417ddc5d-e556-4d27-95dd-a34d84e46a51', 'Example 2');
SELECT * FROM t_uuid ORDER BY x ASC;
DROP TABLE IF EXISTS t_uuid;