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https://issues.apache.org/jira/browse/DRILL-1019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039296#comment-14039296
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Jacques Nadeau commented on DRILL-1019:
---------------------------------------
fixed with efa3274 or earlier
> decimal multiplication between decimal9 and decimal38 place decimal point
> wrong
> -------------------------------------------------------------------------------
>
> Key: DRILL-1019
> URL: https://issues.apache.org/jira/browse/DRILL-1019
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Reporter: Chun Chang
> Assignee: Mehant Baid
> Attachments: DRILL-1019.patch
>
>
> #Wed Jun 18 10:27:23 PDT 2014
> git.commit.id.abbrev=894037a
> Multiplying decimal9 with decimal38 produce wrong result - decimal point
> position is placed wrong.
> postgres:
> foodmart=# select c_row, cast(c_decimal9 as decimal(9,5)), cast(c_decimal38
> as decimal(38,18)), cast(c_decimal9 as decimal(9,5)) * cast(c_decimal38 as
> decimal(38,18)) from data where c_row > 8 and c_row < 14;
> c_row | c_decimal9 | c_decimal38 |
> ?column?
> -------+-------------+----------------------------------------+-----------------------------------------------
> 9 | -9876.54321 | 123456789.123456789000000000 |
> -1219326312345.67900112635269000000000
> 10 | 123.45000 | 999999999999999999.000000000000000000 |
> 123449999999999999876.55000000000000000000000
> 11 | -54.32100 | -999999999999999999.000000000000000000 |
> 54320999999999999945.67900000000000000000000
> 12 | 100.00600 | 0.000000000000000010 |
> 0.00000000000000100006000
> 13 | -1.00006 | -0.000000000000000010 |
> 0.00000000000000001000060
> (5 rows)
> Drill:
> 0: jdbc:drill:schema=dfs> select c_row, cast(c_decimal9 as decimal(9,5)),
> cast(c_decimal38 as decimal(38,18)), cast(c_decimal9 as decimal(9,5)) *
> cast(c_decimal38 as decimal(38,18)) from data where c_row > 8 and c_row < 14;
> +------------+------------+------------+------------+
> | c_row | EXPR$1 | EXPR$2 | EXPR$3 |
> +------------+------------+------------+------------+
> | 9 | -9876.54321 | 123456789.123456789000000000 |
> -1219326312345679001126.35269000000000 |
> | 10 | 123.45000 | 999999999999999999.000000000000000000 |
> 123449999999999999876550000000.00000000000000 |
> | 11 | -54.32100 | -999999999999999999.000000000000000000 |
> 54320999999999999945679000000.00000000000000 |
> | 12 | 100.00600 | 1.0E-17 | 0.00000100006000 |
> | 13 | -1.00006 | -1.0E-17 | 1.000060E-8 |
> +------------+------------+------------+------------+
> 5 rows selected (0.367 seconds)
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