PostgreSQL DATETIME type mapping change
Conversion of DATETIME type with fractional seconds to PostgreSQL TIME(N)/TIMESTAMP(N) was invalid and has been reviewed.
Before Genero 3.00, the PostgreSQL driver converted DATETIME
types as
follows:
DATETIME HOUR TO MINUTE
was converted toTIMESTAMP(3) WITHOUT TIME ZONE
DATETIME HOUR TO SECOND
was converted toTIME(0) WITHOUT TIME ZONE
DATETIME HOUR TO FRACTION(n)
was converted toTIME(n+1) WITHOUT TIME ZONE
DATETIME YEAR TO MINUTE
was converted toTIMESTAMP(3) WITHOUT TIME ZONE
DATETIME YEAR TO SECOND
was converted toTIMESTAMP(3) WITHOUT TIME ZONE
DATETIME YEAR TO FRACTION(n)
was converted toTIMESTAMP(n+1) WITHOUT TIME ZONE
Starting with Genero 3.00, when creating a table in a BDL program with CREATE TABLE, the types are converted in a different way:
DATETIME HOUR TO MINUTE
is converted toTIME(0) WITHOUT TIME ZONE
(seconds set to 00).DATETIME HOUR TO SECOND
is converted toTIME(0) WITHOUT TIME ZONE
.DATETIME HOUR TO FRACTION(n)
is converted toTIME(n) WITHOUT TIME ZONE
.DATETIME YEAR TO MINUTE
is converted toTIMESTAMP(0) WITHOUT TIME ZONE
(seconds set to 00).DATETIME YEAR TO SECOND
is converted toTIMESTAMP(0) WITHOUT TIME ZONE
.DATETIME YEAR TO FRACTION(n)
is converted toTIMESTAMP(n) WITHOUT TIME ZONE
.
This bug fix introduces an incompatibility and can have an impact on applications using
DATETIME HOUR TO MINUTE
, DATETIME HOUR TO FRACTION(n)
or
DATETIME YEAR TO FRACTION(n)
. If you are using one of these types, consider
reviewing your database schema, to modify the column types according to the new SQL type conversion
rules.
Important:
More changes on DATETIME
type mapping take place in Genero BDL version 3.20.