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- issue2551223 - fix timestamp truncation in mysql and postgresql
The data types used to represent timestamps in pg and mysql for
ephemeral tables: sessions and otks don't have enough signifcant
digits to work. As a result the timestamps are rounduped (up/down)
rsuling in the stored timestamp being 2 minutes (pg) or 2-3
hours(mysql) off from what it should be.
Modify db schema to use a numeric type that preserves more significant
figures. Implement schema upgrade. Document need for upgrade in
upgrading.txt.
Write tests for schema upgrade.
Implement test for updateTimestamp method on BasicDatabase that showed
this issue in the first place. Write overrides for test for
anydbm/memorydb which store timestamp properly or not at all.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Mon, 25 Jul 2022 17:20:20 -0400 |
| parents | a0a100453eb9 |
| children | b21ebabeb2ef |
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.. index:: postgres; deployment notes ========================== PostgreSQL/psycopg Backend ========================== This are notes about PostqreSQL backend based on the psycopg adapter for Roundup issue tracker. Prerequisites ============= To use PostgreSQL as backend for storing roundup data, you should additionally install: 1. PostgreSQL_ 8.x or higher 2. The psycopg_ python interface to PostgreSQL_ Note that you currently need at least version 2.8 of psycopg_ -- the postgresql backend will work with 2.7 but if you're using the native postgresql indexer you need at least 2.8. Also if you want to run the tests, these also need 2.8. If your distribution has an older version we suggest that you install into a python virtual environment. .. _psycopg: https://www.psycopg.org/ .. _PostgreSQL: https://www.postgresql.org/ Running the PostgreSQL unit tests ================================= The user that you're running the tests as will need to be able to access the postgresql database on the local machine and create and drop databases. See the config values in 'test/db_test_base.py' about which database connection, name and user will be used. Credit ====== The postgresql backend was originally submitted by Federico Di Gregorio <fog@initd.org>
