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qrz/vendor/github.com/go-sql-driver/mysql/CHANGELOG.md
Paul Lecuq e341b56267
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added multi db support
2024-09-02 22:01:28 +02:00

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Version 1.8.1 (2024-03-26)

Bugfixes:

  • fix race condition when context is canceled in #1562 and #1570

Version 1.8.0 (2024-03-09)

Major Changes:

  • Use SET NAMES charset COLLATE collation. by @methane in #1437
    • Older go-mysql-driver used collation_id in the handshake packet. But it caused collation mismatch in some situation.
    • If you don't specify charset nor collation, go-mysql-driver sends SET NAMES utf8mb4 for new connection. This uses server's default collation for utf8mb4.
    • If you specify charset, go-mysql-driver sends SET NAMES <charset>. This uses the server's default collation for <charset>.
    • If you specify collation and/or charset, go-mysql-driver sends SET NAMES charset COLLATE collation.
  • PathEscape dbname in DSN. by @methane in #1432
    • This is backward incompatible in rare case. Check your DSN.
  • Drop Go 1.13-17 support by @methane in #1420
    • Use Go 1.18+
  • Parse numbers on text protocol too by @methane in #1452
    • When text protocol is used, go-mysql-driver passed bare []byte to database/sql for avoid unnecessary allocation and conversion.
    • If user specified *any to Scan(), database/sql passed the []byte into the target variable.
    • This confused users because most user doesn't know when text/binary protocol used.
    • go-mysql-driver 1.8 converts integer/float values into int64/double even in text protocol. This doesn't increase allocation compared to []byte and conversion cost is negatable.
  • New options start using the Functional Option Pattern to avoid increasing technical debt in the Config object. Future version may introduce Functional Option for existing options, but not for now.
    • Make TimeTruncate functional option by @methane in 1552
    • Add BeforeConnect callback to configuration object by @ItalyPaleAle in #1469

Other changes:

Version 1.7.1 (2023-04-25)

Changes:

  • bump actions/checkout@v3 and actions/setup-go@v3 (#1375)
  • Add go1.20 and mariadb10.11 to the testing matrix (#1403)
  • Increase default maxAllowedPacket size. (#1411)

Bugfixes:

  • Use SET syntax as specified in the MySQL documentation (#1402)

Version 1.7 (2022-11-29)

Changes:

  • Drop support of Go 1.12 (#1211)
  • Refactoring (*textRows).readRow in a more clear way (#1230)
  • util: Reduce boundary check in escape functions. (#1316)
  • enhancement for mysqlConn handleAuthResult (#1250)

New Features:

  • support Is comparison on MySQLError (#1210)
  • return unsigned in database type name when necessary (#1238)
  • Add API to express like a --ssl-mode=PREFERRED MySQL client (#1370)
  • Add SQLState to MySQLError (#1321)

Bugfixes:

  • Fix parsing 0 year. (#1257)

Version 1.6 (2021-04-01)

Changes:

  • Migrate the CI service from travis-ci to GitHub Actions (#1176, #1183, #1190)
  • NullTime is deprecated (#960, #1144)
  • Reduce allocations when building SET command (#1111)
  • Performance improvement for time formatting (#1118)
  • Performance improvement for time parsing (#1098, #1113)

New Features:

  • Implement driver.Validator interface (#1106, #1174)
  • Support returning uint64 from Valuer in ConvertValue (#1143)
  • Add json.RawMessage for converter and prepared statement (#1059)
  • Interpolate json.RawMessage as string (#1058)
  • Implements CheckNamedValue (#1090)

Bugfixes:

  • Stop rounding times (#1121, #1172)
  • Put zero filler into the SSL handshake packet (#1066)
  • Fix checking cancelled connections back into the connection pool (#1095)
  • Fix remove last 0 byte for mysql_old_password when password is empty (#1133)

Version 1.5 (2020-01-07)

Changes:

  • Dropped support Go 1.9 and lower (#823, #829, #886, #1016, #1017)
  • Improve buffer handling (#890)
  • Document potentially insecure TLS configs (#901)
  • Use a double-buffering scheme to prevent data races (#943)
  • Pass uint64 values without converting them to string (#838, #955)
  • Update collations and make utf8mb4 default (#877, #1054)
  • Make NullTime compatible with sql.NullTime in Go 1.13+ (#995)
  • Removed CloudSQL support (#993, #1007)
  • Add Go Module support (#1003)

New Features:

  • Implement support of optional TLS (#900)
  • Check connection liveness (#934, #964, #997, #1048, #1051, #1052)
  • Implement Connector Interface (#941, #958, #1020, #1035)

Bugfixes:

  • Mark connections as bad on error during ping (#875)
  • Mark connections as bad on error during dial (#867)
  • Fix connection leak caused by rapid context cancellation (#1024)
  • Mark connections as bad on error during Conn.Prepare (#1030)

Version 1.4.1 (2018-11-14)

Bugfixes:

  • Fix TIME format for binary columns (#818)
  • Fix handling of empty auth plugin names (#835)
  • Fix caching_sha2_password with empty password (#826)
  • Fix canceled context broke mysqlConn (#862)
  • Fix OldAuthSwitchRequest support (#870)
  • Fix Auth Response packet for cleartext password (#887)

Version 1.4 (2018-06-03)

Changes:

  • Documentation fixes (#530, #535, #567)
  • Refactoring (#575, #579, #580, #581, #603, #615, #704)
  • Cache column names (#444)
  • Sort the DSN parameters in DSNs generated from a config (#637)
  • Allow native password authentication by default (#644)
  • Use the default port if it is missing in the DSN (#668)
  • Removed the strict mode (#676)
  • Do not query max_allowed_packet by default (#680)
  • Dropped support Go 1.6 and lower (#696)
  • Updated ConvertValue() to match the database/sql/driver implementation (#760)
  • Document the usage of 0000-00-00T00:00:00 as the time.Time zero value (#783)
  • Improved the compatibility of the authentication system (#807)

New Features:

  • Multi-Results support (#537)
  • rejectReadOnly DSN option (#604)
  • context.Context support (#608, #612, #627, #761)
  • Transaction isolation level support (#619, #744)
  • Read-Only transactions support (#618, #634)
  • NewConfig function which initializes a config with default values (#679)
  • Implemented the ColumnType interfaces (#667, #724)
  • Support for custom string types in ConvertValue (#623)
  • Implemented NamedValueChecker, improving support for uint64 with high bit set (#690, #709, #710)
  • caching_sha2_password authentication plugin support (#794, #800, #801, #802)
  • Implemented driver.SessionResetter (#779)
  • sha256_password authentication plugin support (#808)

Bugfixes:

  • Use the DSN hostname as TLS default ServerName if tls=true (#564, #718)
  • Fixed LOAD LOCAL DATA INFILE for empty files (#590)
  • Removed columns definition cache since it sometimes cached invalid data (#592)
  • Don't mutate registered TLS configs (#600)
  • Make RegisterTLSConfig concurrency-safe (#613)
  • Handle missing auth data in the handshake packet correctly (#646)
  • Do not retry queries when data was written to avoid data corruption (#302, #736)
  • Cache the connection pointer for error handling before invalidating it (#678)
  • Fixed imports for appengine/cloudsql (#700)
  • Fix sending STMT_LONG_DATA for 0 byte data (#734)
  • Set correct capacity for []bytes read from length-encoded strings (#766)
  • Make RegisterDial concurrency-safe (#773)

Version 1.3 (2016-12-01)

Changes:

  • Go 1.1 is no longer supported
  • Use decimals fields in MySQL to format time types (#249)
  • Buffer optimizations (#269)
  • TLS ServerName defaults to the host (#283)
  • Refactoring (#400, #410, #437)
  • Adjusted documentation for second generation CloudSQL (#485)
  • Documented DSN system var quoting rules (#502)
  • Made statement.Close() calls idempotent to avoid errors in Go 1.6+ (#512)

New Features:

  • Enable microsecond resolution on TIME, DATETIME and TIMESTAMP (#249)
  • Support for returning table alias on Columns() (#289, #359, #382)
  • Placeholder interpolation, can be activated with the DSN parameter interpolateParams=true (#309, #318, #490)
  • Support for uint64 parameters with high bit set (#332, #345)
  • Cleartext authentication plugin support (#327)
  • Exported ParseDSN function and the Config struct (#403, #419, #429)
  • Read / Write timeouts (#401)
  • Support for JSON field type (#414)
  • Support for multi-statements and multi-results (#411, #431)
  • DSN parameter to set the driver-side max_allowed_packet value manually (#489)
  • Native password authentication plugin support (#494, #524)

Bugfixes:

  • Fixed handling of queries without columns and rows (#255)
  • Fixed a panic when SetKeepAlive() failed (#298)
  • Handle ERR packets while reading rows (#321)
  • Fixed reading NULL length-encoded integers in MySQL 5.6+ (#349)
  • Fixed absolute paths support in LOAD LOCAL DATA INFILE (#356)
  • Actually zero out bytes in handshake response (#378)
  • Fixed race condition in registering LOAD DATA INFILE handler (#383)
  • Fixed tests with MySQL 5.7.9+ (#380)
  • QueryUnescape TLS config names (#397)
  • Fixed "broken pipe" error by writing to closed socket (#390)
  • Fixed LOAD LOCAL DATA INFILE buffering (#424)
  • Fixed parsing of floats into float64 when placeholders are used (#434)
  • Fixed DSN tests with Go 1.7+ (#459)
  • Handle ERR packets while waiting for EOF (#473)
  • Invalidate connection on error while discarding additional results (#513)
  • Allow terminating packets of length 0 (#516)

Version 1.2 (2014-06-03)

Changes:

  • We switched back to a "rolling release". go get installs the current master branch again
  • Version v1 of the driver will not be maintained anymore. Go 1.0 is no longer supported by this driver
  • Exported errors to allow easy checking from application code
  • Enabled TCP Keepalives on TCP connections
  • Optimized INFILE handling (better buffer size calculation, lazy init, ...)
  • The DSN parser also checks for a missing separating slash
  • Faster binary date / datetime to string formatting
  • Also exported the MySQLWarning type
  • mysqlConn.Close returns the first error encountered instead of ignoring all errors
  • writePacket() automatically writes the packet size to the header
  • readPacket() uses an iterative approach instead of the recursive approach to merge split packets

New Features:

  • RegisterDial allows the usage of a custom dial function to establish the network connection
  • Setting the connection collation is possible with the collation DSN parameter. This parameter should be preferred over the charset parameter
  • Logging of critical errors is configurable with SetLogger
  • Google CloudSQL support

Bugfixes:

  • Allow more than 32 parameters in prepared statements
  • Various old_password fixes
  • Fixed TestConcurrent test to pass Go's race detection
  • Fixed appendLengthEncodedInteger for large numbers
  • Renamed readLengthEnodedString to readLengthEncodedString and skipLengthEnodedString to skipLengthEncodedString (fixed typo)

Version 1.1 (2013-11-02)

Changes:

  • Go-MySQL-Driver now requires Go 1.1
  • Connections now use the collation utf8_general_ci by default. Adding &charset=UTF8 to the DSN should not be necessary anymore
  • Made closing rows and connections error tolerant. This allows for example deferring rows.Close() without checking for errors
  • []byte(nil) is now treated as a NULL value. Before, it was treated like an empty string / []byte("")
  • DSN parameter values must now be url.QueryEscape'ed. This allows text values to contain special characters, such as '&'.
  • Use the IO buffer also for writing. This results in zero allocations (by the driver) for most queries
  • Optimized the buffer for reading
  • stmt.Query now caches column metadata
  • New Logo
  • Changed the copyright header to include all contributors
  • Improved the LOAD INFILE documentation
  • The driver struct is now exported to make the driver directly accessible
  • Refactored the driver tests
  • Added more benchmarks and moved all to a separate file
  • Other small refactoring

New Features:

  • Added old_passwords support: Required in some cases, but must be enabled by adding allowOldPasswords=true to the DSN since it is insecure
  • Added a clientFoundRows parameter: Return the number of matching rows instead of the number of rows changed on UPDATEs
  • Added TLS/SSL support: Use a TLS/SSL encrypted connection to the server. Custom TLS configs can be registered and used

Bugfixes:

  • Fixed MySQL 4.1 support: MySQL 4.1 sends packets with lengths which differ from the specification
  • Convert to DB timezone when inserting time.Time
  • Split packets (more than 16MB) are now merged correctly
  • Fixed false positive io.EOF errors when the data was fully read
  • Avoid panics on reuse of closed connections
  • Fixed empty string producing false nil values
  • Fixed sign byte for positive TIME fields

Version 1.0 (2013-05-14)

Initial Release