Mercurial > gemma
annotate schema/updates/1310/01.import-changed.sql @ 4748:47922c1a088d
Added a 'changed' column to the import.imports table.
Changed is update each time the state changes (TODO: solve this with a trigger).
The update script takes as approximation the time of the last log entry
connected with the particular import.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Fri, 18 Oct 2019 15:34:34 +0200 |
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4748
47922c1a088d
Added a 'changed' column to the import.imports table.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
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1 ALTER TABLE import.imports ADD COLUMN changed timestamp WITH time zone NOT NULL DEFAULT CURRENT_TIMESTAMP; |
47922c1a088d
Added a 'changed' column to the import.imports table.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
2 |
47922c1a088d
Added a 'changed' column to the import.imports table.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
3 UPDATE import.imports imp SET |
47922c1a088d
Added a 'changed' column to the import.imports table.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
4 changed = (SELECT coalesce(max(time), imp.changed) |
47922c1a088d
Added a 'changed' column to the import.imports table.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
5 FROM import.import_logs |
47922c1a088d
Added a 'changed' column to the import.imports table.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
6 WHERE import_id = imp.id); |