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support emoji (utf8mb4) #7

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krlmlr opened this issue Jul 5, 2017 · 4 comments
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support emoji (utf8mb4) #7

krlmlr opened this issue Jul 5, 2017 · 4 comments
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1.0

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krlmlr commented Jul 5, 2017

Issue by graingert
Wednesday Mar 25, 2015 at 10:47 GMT
Originally opened as r-dbi/RMySQL#60

From the sqlalchemy docs:

The encoding used for Unicode has traditionally been 'utf8'. However, for MySQL versions 5.5.3 on forward, a new MySQL-specific encoding 'utf8mb4' has been introduced. The rationale for this new encoding is due to the fact that MySQL’s utf-8 encoding only supports codepoints up to three bytes instead of four. Therefore, when communicating with a MySQL database that includes codepoints more than three bytes in size, this new charset is preferred, if supported by both the database as well as the client DBAPI
@krlmlr krlmlr added this to the 1.0 milestone Jul 5, 2017
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krlmlr commented Jul 5, 2017

Comment by hadley
Wednesday Mar 25, 2015 at 13:02 GMT

So utf8mb4 is "real" utf-8?

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krlmlr commented Jul 5, 2017

Comment by graingert
Wednesday Mar 25, 2015 at 14:03 GMT

Yeah, utf8mb4 is UTF-8 as described by https://tools.ietf.org/html/rfc3629

The original description of UTF-8 allowed for up to 6-byte characters

@krlmlr krlmlr closed this as completed in a16ce45 Sep 13, 2017
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krlmlr commented Sep 13, 2017

@graingert: Thanks!

krlmlr added a commit that referenced this issue Sep 24, 2017
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Merge tag 'v0.11-7'
56707ab 
- Improve documentation for location of option files, with reference (#18).
- Fully support parametrized queries (#22, #27, #39).
- Use snake_case in C++ code.
- Make transactions compliant to the spec (#38, #49).
- 64-bit integers are now supported through the `bit64` package. Unfortunately, this also means that numeric literals (as in `SELECT 1`) are returned as 64-bit integers (#12).
- Support timestamp values with sub-second precision on output.
- The connection now uses the "utf8mb4" charset by default (#7).
- The `port` and `client.flag` arguments to `dbConnect()` are coerced to integer (#4).
- Date values with the year beyond 2038 are supported (#56).
- Improve DBI compliance (#1, #5, #10, #15, #17, #40).
- Correct handling of DATETIME and TIME columns (#52, @noahwilliamsson).
krlmlr added a commit that referenced this issue Oct 4, 2017
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Merge tag 'v1.0-2'
5238273 
Initial release, compliant to the DBI specification.

- Test almost all test cases of the DBI specification.
- Fully support parametrized queries (#22, #27, #39).
- Queries not supported by the prepared statement protocol still can be run via `dbExecute()` or `dbSendStatement()`, the function `mariadbExecQuery()` has been removed (#28).
- Spec-compliant transactions (#38, #49).
- 64-bit integers are now supported through the `bit64` package. Unfortunately, this also means that numeric literals (as in `SELECT 1`) are returned as 64-bit integers (#12).
- Correct handling of DATETIME and TIME columns (#52, @noahwilliamsson). Support timestamp values with sub-second precision on output, and with year beyond 2038 (#56).
- The connection now uses the "utf8mb4" charset by default (#7).
- New default `row.names = FALSE`.
- New SSL-related arguments to `dbConnect()`: `ssl.key`, `ssl.cert`, `ssl.ca`, `ssl.capath`, `ssl.cipher` (#131, #148, @adamchainz).
- CI for Linux, Windows, and OS X (#25).
- Support for Connector/C from both MariaDB and MySQL.
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