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Posted to issues@calcite.apache.org by "Ruben Quesada Lopez (JIRA)" <ji...@apache.org> on 2018/11/19 15:15:00 UTC
[jira] [Updated] (CALCITE-2684) AssertionError on RexBuilder when
creating BigDecimal RexLiteral
[ https://issues.apache.org/jira/browse/CALCITE-2684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ruben Quesada Lopez updated CALCITE-2684:
-----------------------------------------
Description:
The method {{RexBuilder#makeExactLiteral(java.math.BigDecimal)}} throws an AssertionError if the BigDecimal parameter has an unscaled value that overflows long:
{code:java}
public RexLiteral makeExactLiteral(BigDecimal bd) {
...
long l = bd.unscaledValue().longValue(); // narrowing conversion BigInteter to long
...
assert BigDecimal.valueOf(l, scale).equals(bd); // assert fails if l overflew long
...
{code}
Moreover, with the current implementation, it can be possible to have this AssertionError, even in the cases when the variable {{l}} would not be used at all (decimal number)
{code:java}
...
assert BigDecimal.valueOf(l, scale).equals(bd); // assert can fail, even if scale == 0 (l would not be needed)
if (scale == 0) {
if ((l >= Integer.MIN_VALUE) && (l <= Integer.MAX_VALUE))
relType = typeFactory.createSqlType(SqlTypeName.INTEGER);
else
relType = typeFactory.createSqlType(SqlTypeName.BIGINT);
} else {
int precision = bd.unscaledValue().abs().toString().length();
if (precision > scale)
relType = typeFactory.createSqlType(SqlTypeName.DECIMAL, precision, scale);
else
relType = typeFactory.createSqlType(SqlTypeName.DECIMAL, scale + 1, scale);
}
{code}
was:
The method {{RexBuilder#makeExactLiteral(java.math.BigDecimal)}} throws an AssertionError if the BigDecimal parameter has an unscaled value that overflows long:
{code:java}
public RexLiteral makeExactLiteral(BigDecimal bd) {
...
long l = bd.unscaledValue().longValue(); // narrowing conversion BigInteter to long
...
assert BigDecimal.valueOf(l, scale).equals(bd); // assert fails if l overflew long
...
{code}
> AssertionError on RexBuilder when creating BigDecimal RexLiteral
> ----------------------------------------------------------------
>
> Key: CALCITE-2684
> URL: https://issues.apache.org/jira/browse/CALCITE-2684
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.17.0
> Reporter: Ruben Quesada Lopez
> Assignee: Julian Hyde
> Priority: Minor
> Fix For: 1.18.0
>
>
> The method {{RexBuilder#makeExactLiteral(java.math.BigDecimal)}} throws an AssertionError if the BigDecimal parameter has an unscaled value that overflows long:
> {code:java}
> public RexLiteral makeExactLiteral(BigDecimal bd) {
> ...
> long l = bd.unscaledValue().longValue(); // narrowing conversion BigInteter to long
> ...
> assert BigDecimal.valueOf(l, scale).equals(bd); // assert fails if l overflew long
> ...
> {code}
> Moreover, with the current implementation, it can be possible to have this AssertionError, even in the cases when the variable {{l}} would not be used at all (decimal number)
> {code:java}
> ...
> assert BigDecimal.valueOf(l, scale).equals(bd); // assert can fail, even if scale == 0 (l would not be needed)
> if (scale == 0) {
> if ((l >= Integer.MIN_VALUE) && (l <= Integer.MAX_VALUE))
> relType = typeFactory.createSqlType(SqlTypeName.INTEGER);
> else
> relType = typeFactory.createSqlType(SqlTypeName.BIGINT);
> } else {
> int precision = bd.unscaledValue().abs().toString().length();
> if (precision > scale)
> relType = typeFactory.createSqlType(SqlTypeName.DECIMAL, precision, scale);
> else
> relType = typeFactory.createSqlType(SqlTypeName.DECIMAL, scale + 1, scale);
> }
> {code}
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