HowTo make Wiki history working with Postgres 90 » History » Version 3
Florian Breitwieser, 2011-02-21 17:31
1 | 1 | Florian Breitwieser | h1. HowTo make Wiki history working with Postgres 9.0 |
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3 | 3 | Florian Breitwieser | h2. Problem |
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5 | 2 | Florian Breitwieser | When accessing the history version of a Wiki page (e.g. Wiki?version=16), just a string which is not human readable is displayed. It starts like this and is about 5000 characters long: |
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7 | <pre> |
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8 | \x68312e204d532050726f63657373696e6720506970656c696e670d0a0d0a68322e2047656e6572616c2073657475700d0a0d0a57696e646f7773206d616368696e657320617474616368656420746f206d61737370656320617265207573656420746f20636f70792066696c657320746f206365727461696e206c6f636174696f6e732e20402f72 |
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10 | </pre> |
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11 | Same result for exporting TXT or HTML of the current version, and a Wiki-diff just diffs between two such strings. |
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13 | 1 | Florian Breitwieser | h2. Solution |
14 | 3 | Florian Breitwieser | |
15 | 1 | Florian Breitwieser | PostgreSQL 9 introduced a new 'hex' format for bytea data input and output. Default for output is now hex, but it can be easily reverted to the old 'escape' format with the following command: |
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17 | <pre> |
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18 | ALTER DATABASE redmine SET bytea_output TO 'escape'; |
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19 | </pre> |
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21 | See also #7677. |