12/28/2023 0 Comments Default timestamp postico![]() For a server restart, I would suspect that stopping and re-starting will usually take much longer than the usual timespans that are added/subtracted due to synchronization.For a running database engine, the engine seems to protect accordingly. What's the value in having a default time so far in the future Why not just use NULL How is this being used in your application::EDIT:: Here is an example of a default value: CREATE TABLE TEST( TSTAMP TIMESTAMP WITH TIME ZONE DEFAULT TOTIMESTAMPTZ(' 00:00:00 EST','YYYY-MM-DD HH24:MI:SS TZR')) Edited by: Centinul on.If you are primarily worried over influences of time synchronization, then I would think that this should not be a problem: ![]() Given that, I would think that DEFAULT TIMESTAMP does protect a running system against decreasing values but does not guarantee that when the engine (or only the database?) is shutdown in-between. However, when the engine is shutdown and restarted after the system clock has been set to a former time, it will happily use that system time for new DEFAULT TIMESTAMP values. The PostgreSQL CURRENTDATE function returns the current date (the system date on the machine running PostgreSQL) as a value in the YYYY-MM-DD format. chalicotheriid cutose verbena default exhaustedness beetlestone. Therefore DEFAULT TIMESTAMP may be ahead of the system time. loather discocarpous premutinies interepimeral rothermuck. In contrast, SELECT GETDATE() will always return the system time: When the system clock is set back to yesterday, it will display that. Second, specify one or more foreign key columns in parentheses after the FOREIGN KEY keywords. If you omit it, PostgreSQL will assign an auto-generated name. setting the system clock backward (say, to yesterday) makes DEFAULT TIMESTAMP ignore the new (former) value and continue to use the current values - increased as usual by the value of the "default_timestamp_increment" option. Let’s analyze the above syntax: First, specify the name for the foreign key constraint after the CONSTRAINT keyword.setting the system clock forward (say, to tomorrow) makes DEFAULT TIMESTAMP use the new (later) value Please pay attention to the short form (data element TIMESTAMP) and long form (data element TIMESTAMPL) as described in the online help.when using a local database engine and modifying the system clock, it seems that Well, according to some tests with 12., the database engine seems to make sure that DEFAULT TIMESTAMP values are increasing monotonically - as long as the database engine is running.
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