64a4058cce
Start to add compatibility with squee returning #f for null values
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While maintaining compatibility for older versions of squee.
2021-01-02 10:06:27 +00:00
d2646e7110
Remove some non-existent imports
2020-10-04 13:22:24 +01:00
e2e55c69de
Rework the shortlived PostgreSQL specific connection channel
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In to a generic thing more like (ice-9 futures). Including copying some bits
from the (ice-9 threads) module and adapting them to work with this fibers
approach, rather than futures. The advantage being that using fibers channels
doesn't block the threads being used by fibers, whereas futures would.
2020-10-03 21:32:46 +01:00
9723a18df4
Add some utilities to work with PostgreSQL connections in threads
2020-10-03 09:20:39 +01:00
1bdc8855ba
Extract out opening PostgreSQL connections
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So this can be reused.
2020-10-03 08:55:56 +01:00
71afa93981
Make with-postgresql-connection work with multiple values
2020-10-02 20:15:23 +01:00
404f39a9ee
Drop default thread count for make-postgresql-connection-channel
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At least for data deletion, 4 seems unnecessary.
2020-10-01 19:41:13 +01:00
614f9888a5
Add some utilities to use PostgreSQL/Squee through a channel
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To allow for some concurrency.
2020-10-01 19:13:30 +01:00
0cc78b90ae
Support setting a statement timeout
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To stop queries related to the web server that run for a long time.
2020-04-24 08:59:32 +01:00
8e9f1af89b
Use the config options when creating the default paramstring
2020-04-07 17:37:03 +01:00
b337c5fcb2
Add a function to check if the test database is being used
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This helps avoid problems when running the tests, and the test database not
being used.
2020-02-24 21:15:43 +00:00
356a5954b2
Add support for using a database URI
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As this is useful when working with pg_tmp.
2019-10-08 19:45:41 +01:00
1441942200
Hack better NULL support on to (squee)
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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.
2019-09-04 12:52:12 +02:00
fde1000cb3
Add a couple of functions for PostgreSQL advisory locks
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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.
2019-07-12 19:51:42 +01:00
743cec7cb6
Associate a name with database connections
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This helps when working out which connection to the database is doing what.
2019-07-12 19:49:26 +01:00
051962b54d
Add a with-postgresql-transaction procedure
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To help with running tests.
2019-05-05 13:35:17 +01:00
2e45bb0696
Extract out some database functionality to another module
2019-04-14 10:04:51 +01:00
