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From Øyvind Harboe (JIRA) <j...@apache.org>
Subject [jira] Created: (DERBY-3876) Stack overflow when issuing SELECT statements with *lots* of 'OR' in the WHERE clause
Date Fri, 12 Sep 2008 10:47:44 GMT
Stack overflow when issuing SELECT statements with *lots* of 'OR' in the WHERE clause
-------------------------------------------------------------------------------------

                 Key: DERBY-3876
                 URL: https://issues.apache.org/jira/browse/DERBY-3876
             Project: Derby
          Issue Type: Bug
            Reporter: Øyvind Harboe


The problem is that e.g. Cayenne uses *long* SQL statements with *lots* of OR statements to
implement certain operations.

This causes a stack overflow as evaluation of 'OR' is implemented recursively.

Could an iterative implementation trivially replace the recursive implementation? 





at org.apache.derby.impl.sql.compile.OrNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryOperatorNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryLogicalOperatorNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.OrNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryOperatorNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryLogicalOperatorNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.OrNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryOperatorNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryLogicalOperatorNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.OrNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryOperatorNode.bindExpression(Unknown Source)
at org.apache.derby.impl.sql.compile.BinaryLogicalOpera




See also

https://issues.apache.org/cayenne/browse/CAY-1079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12974#action_12974

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