Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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10.1.2.1
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--------- Derby Information --------
JRE - JDBC: J2SE 1.4.2 - JDBC 3.0
[D:\Programme\Derby\bin\lib\derby.jar] 10.1.2.1 - (330608)
[D:\Programme\Derby\bin\lib\derbytools.jar] 10.1.2.1 - (330608)
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Normal
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Repro attached
Description
Cast date to timestamp results in "ERROR 42846: Cannot convert types 'DATE' to 'TIMESTAMP'.",
e.g. in ij:
select cast(cast ('2006-01-01' as date) as timestamp) from sys.sysschemas;
or
select cast (current_date as timestamp) from bradi_dat.lpaip01;
The similar issue exists for time ("ERROR 42846: Cannot convert types 'TIME' to 'TIMESTAMP'.",
Documentation clearly states that these conversions are allowed, see table 1 in a description of CAST function in the Derby Reference Manual and comment about "Conversion of date/time values" below that table (see below as well).
Conversions of date/time values
A date/time value can always be converted to and from a TIMESTAMP. If a DATE is
converted to a TIMESTAMP, the TIME component of the resulting TIMESTAMP is always
00:00:00. If a TIME data value is converted to a TIMESTAMP, the DATE component is
set to the value of CURRENT_DATE at the time the CAST is executed. If a TIMESTAMP
is converted to a DATE, the TIME component is silently truncated. If a TIMESTAMP is
converted to a TIME, the DATE component is silently truncated.
Attachments
Attachments
Issue Links
- is related to
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DERBY-6481 Derby 10.10 backport issue (winter/spring 2014)
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- Closed
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- relates to
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DERBY-6501 change 10.10 version of CastingTest.java to build/run under jsr169
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- Closed
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