Decfloat bind BIGINT,n with resulting value with 11 digits or more fail with
Decimal float invalid operation. An indeterminant error occurred during an
operation.
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Key: CORE-6181
URL: http://tracker.firebirdsql.org/browse/CORE-6181
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 4.0 Beta 2
Environment: Firebird-4.0.0.1641-0_x64 on Windows 10
Reporter: Mark Rotteveel
Conversions from a DECFLOAT using SET DECFLOAT BIND BIGINT,n fails when the
resulting NUMERIC(18,n) value has 11 digits or more.
The resulting error is:
Statement failed, SQLSTATE = 22000
Decimal float invalid operation. An indeterminant error occurred during an
operation.
Example:
SQL> set decfloat bind bigint,3;
SQL> select cast('1234567.890' as DECFLOAT(34)) from rdb$database;
CAST
=====================
1234567.890
SQL> select cast('1234567.8901' as DECFLOAT(34)) from rdb$database;
CAST
=====================
1234567.890
SQL> select cast('12345678.901' as DECFLOAT(34)) from rdb$database;
CAST
=====================
Statement failed, SQLSTATE = 22000
Decimal float invalid operation. An indeterminant error occurred during an
operation.
SQL> select cast('123456789.0' as DECFLOAT(34)) from rdb$database;
CAST
=====================
Statement failed, SQLSTATE = 22000
Decimal float invalid operation. An indeterminant error occurred during an
operation.
It looks like an artificial limit of 10 digits is enforced, while a BIGINT can
support 18-19 digits.
Expected behaviour is that with BIGINT,3
select cast('9223372036854775.807' as DECFLOAT(34)) from rdb$database
will yield exactly 9223372036854775.807 (9223372036854775807 is the maximum
value of a 64 bit integer).
As a datapoint, this worked fine in build 1575, but fails in 1614 (I don't have
build in between those numbers). Build 1614 is just after the INT128 changes.
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