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https://issues.apache.org/jira/browse/CALCITE-919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14955315#comment-14955315
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Josh Elser commented on CALCITE-919:
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In practice, for a table with a value of {{13.7}}, we end up with a Number on
the client side which is a BigDecimal, implemented as {{137}} with a scale of
{{1}} and precision of {{3}}.
It looks like when we call {{setScale}}, the fact that we were calling this
method with a new scale of {{0}}, it caused some confusion and we got this
exception instead.
> ArithmeticException when querying against decimal field.
> --------------------------------------------------------
>
> Key: CALCITE-919
> URL: https://issues.apache.org/jira/browse/CALCITE-919
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Reporter: Josh Elser
> Assignee: Josh Elser
> Fix For: 1.5.0-incubating
>
>
> Running against Phoenix:
> {code}
> DROP TABLE IF EXISTS foo;
> CREATE TABLE IF NOT EXISTS foo (ID INTEGER PRIMARY KEY,decimal_id DECIMAL);
> UPSERT INTO foo VALUES (0,13.7);
> UPSERT INTO foo VALUES (1,13.7);
> UPSERT INTO foo VALUES (2,13.7);
> SELECT * FROM foo;
> {code}
> Nets an exception on the client side:
> {code}
> java.lang.ArithmeticException: Rounding necessary
> at java.math.BigDecimal.divideAndRound(BigDecimal.java:1452)
> at java.math.BigDecimal.setScale(BigDecimal.java:2402)
> at
> org.apache.calcite.avatica.util.AbstractCursor$NumberAccessor.getBigDecimal(AbstractCursor.java:704)
> at
> org.apache.calcite.avatica.util.AbstractCursor$NumberAccessor.getBigDecimal(AbstractCursor.java:708)
> at org.apache.calcite.avatica.AvaticaSite.get(AvaticaSite.java:327)
> at
> org.apache.calcite.avatica.AvaticaResultSet.getObject(AvaticaResultSet.java:381)
> at sqlline.Rows$Row.<init>(Rows.java:157)
> at sqlline.IncrementalRows.hasNext(IncrementalRows.java:63)
> at sqlline.TableOutputFormat.print(TableOutputFormat.java:33)
> at sqlline.SqlLine.print(SqlLine.java:1653)
> at sqlline.Commands.execute(Commands.java:833)
> at sqlline.Commands.sql(Commands.java:732)
> at sqlline.SqlLine.dispatch(SqlLine.java:808)
> at sqlline.SqlLine.begin(SqlLine.java:681)
> at sqlline.SqlLine.start(SqlLine.java:398)
> at sqlline.SqlLine.main(SqlLine.java:292)
> {code}
> The above works without Avatica in the picture, so I'm assuming that
> something isn't working as it should in the Accessors.
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