[teiid-issues] [JBoss JIRA] Created: (TEIID-1600) Exact numerical literal parsing
Steven Hawkins (JIRA)
jira-events at lists.jboss.org
Mon May 23 13:31:00 EDT 2011
Exact numerical literal parsing
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Key: TEIID-1600
URL: https://issues.jboss.org/browse/TEIID-1600
Project: Teiid
Issue Type: Bug
Components: Query Engine
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 8.0
Teiid diverges from the SQL spec by parsing numerical expressions of the form <integral value>.<integral value> as doubles rather than as an exact numeric type (which for us would be BigDecimal). I believe this was originally done to match Java parsing semantics and potentially to avoid performance overhead of using BigBecimal. However this can lead to a loss of precision that is not expected by ANSI SQL.
inexact numeric values entered in scientific notation would not be affected by this change. They would still be parsed as doubles.
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