| Commit message (Collapse) | Author | Age |
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PQgetvalue used by squee returns null values as empty strings, which are
ambiguous for string fields. Therefore, use PQgetisnull to implement a
serialiser for squee which checks empty strings to see if they're actually a
NULL value, then returns '() in this case.
exec-query-with-null-handling can be used to access this behaviour.
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Use symbol-hash to convert a symbol to the number for the lock. I'm hoping
this is OK, and it seems to be stable.
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This helps when working out which connection to the database is doing what.
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To help with running tests.
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