Created attachment 130151 [details] Open the query and have a look. Says all. Open the attaches Firebird 3 database. Open the query. I tried to divide an Integer with 2: Integer/2 1/2 = 0 This shows, as expected, wrong values, because there isn't defined a decimal-point. So I tried Integer/2.0 , which works in HSQLDB. Firebird divides with 2 and multiplicates the result with 10. 1/2.0 = 5 So I thought: Might be Firebird doesn't know how to handle the decimal point. Will try it with Decimal and a value with 2 digits. 1.00/2 = 50 Seems Firebird ignores the digits of the Decimal and works with 100 instead of 1.00. So I tried again with Decimal 2 digits and divide through 2.0 1.00/2.0 = 500 Tried all this with Version: 5.4.0.0.alpha0+ Build ID: 2a4cd80abcf9e515d1ce3b3a944b573bdc42bff2 CPU Threads: 4; OS Version: Linux 4.1; UI Render: default; VCL: kde4; TinderBox: Linux-rpm_deb-x86_64@70-TDF, Branch:master, Time: 2016-12-22_00:18:04 Locale: de-DE (de_DE.UTF-8); Calc: group Firebird in this state is very experimental.
Confirmed. Arch Linux 64-bit, KDE Plasma 5 Version: 5.4.0.0.alpha0+ Build ID: 1a58cdf8af1aba52ce0a376666dd7d742234d7cf CPU Threads: 8; OS Version: Linux 4.8; UI Render: default; VCL: kde4; Locale: fi-FI (fi_FI.UTF-8); Calc: group Built on January 4th 2016
Created attachment 130280 [details] script for isql-fb for comparison Just in case there was any doubt, the problem is LibreOffice. isql-fb returns the expected results (abbreviating long column names in the obvious way) ... ID Int Int/2 Int/2.0 D2D D2D/2 D2D/2.0 == === ===== ======= ==== ===== ======= 1 1 0 0.5 1.00 0.50 0.500 2 2 1 1.0 2.00 1.00 1.000 3 3 1 1.5 3.00 1.50 1.500 4 4 2 2.0 4.00 2.00 2.000 5 5 2 2.5 5.00 2.50 2.500
It feels like a confusion between "." as thousand separator and decimal point. It also happens in Tools/SQL.
Have tested this a little bit more: SELECT CAST("Integer" AS FLOAT)/ 2.0 "Integer/2.0_Float", CAST ("Decimal_2_Digit" AS FLOAT)/2.0 "Decimal_2_Digit/2.0_Float" FROM "Table" gives the right value for both. The decimal point works right with Float (or Double Precision), but doesn't work with Decimal (or Numeric). If I set CAST("Integer" AS NUMERIC)/ 2.0 the result is as wrong as described in bug-report. I will set this bug to version 5.3.0.0alpha0+, because the buggy behavior is introduced with Firebird 3.0.
It turns out that for computed numeric/decimal values firebird does not set subtype to either numeric or decimal.[1] In isql and jaybird (jdbc driver for firebird) the problem is solved by checking not only for subtype but scale of the column too. So I decided to do the same in this patch: https://gerrit.libreoffice.org/33660 [1] http://firebird.1100200.n4.nabble.com/Wrong-rdb-field-sub-type-for-numeric-computed-column-td4305957.html
Tamás Bunth committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=4a193d39fb785c75668c977cf6b40d11b0ef4afe tdf#105101 check scale to determine subtype It will be available in 5.4.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Works now, also for other numeric functions. Thanks Tamas. Could this be backported to LO 5.3.1?
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Looks like you mistakenly reopened the bug. Closing again.
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