fixes coalesce and case operators in multithreaded environments (bug #2136) #2168
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@rfelcman Radek, sorry for tagging you but I would like move ahead with this PR. This change fixes a severe bug for coalesce function which was reported by multiple people. Can we get it merged somehow? If so, I would also prepare fixes for other versions. |
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The bug is described in the issue #2136
TestArgumentListFunctionExpressionConcurrency.java - adds tests that reproduce the bug.
ExpressionOperator.java - printCollection method is modified so it does not modify the shared argumentIndexes field.
ArgumentListFunctionExpression.java - previous "workarounds" are removed