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Type:
Bug
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Status: Closed (View Workflow)
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 10.0.21
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Component/s: Character Sets, Dynamic Columns
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Labels:None
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Environment:Seen on both OS X 10.9 and Ubuntu 14.04
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Sprint:10.2.11
Possibly related to MDEV-461.
When calling column_create with names set to utf8, one can successfully
encode an emoji that takes 4 bytes in utf-8:
adamj@localhost [1]> set names utf8;
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adamj@localhost [2]> select column_json(column_create('��', 1));
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+---------------------------------------+
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| column_json(column_create('��', 1)) |
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+---------------------------------------+
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| {"��":1} |
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+---------------------------------------+
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However if the connection is set to utf8mb4 this actually fails,
counter-intuitively:
adamj@localhost [3]> set names utf8mb4;
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adamj@localhost [4]> select column_json(column_create('��', 1));
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+------------------------------------+
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| column_json(column_create('?', 1)) |
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+------------------------------------+
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| {"?":1} |
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+------------------------------------+
|
|
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adamj@localhost [5]> select column_list(column_create('��', 1));
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+------------------------------------+
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| column_list(column_create('?', 1)) |
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+------------------------------------+
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| `?` |
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+------------------------------------+
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Other unicode characters work fine though:
adamj@localhost [6]> select column_list(column_create('❤', 1));
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+--------------------------------------+
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| column_list(column_create('❤', 1)) |
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+--------------------------------------+
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| `❤` |
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+--------------------------------------+
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