CREATE ALIAS ... AS: Compilation was incorrect if the source code contained characters that are not supported by the default file encoding.

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When using the small version of H2 ('jarClient'), the first call to Connection.createBlob (or similar) could throw a ClassNotFoundException.

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Try to use current java executable path, not the one in %PATH% (there could be a reference to an old one)

Older versions of H2 (version 1.2.127 and older) could not connect to a new version (version 1.2.129 and newer). The connection blocked when trying to connect. Now the connection no longer blocks, instead a SQL exception is thrown.

A database could not be opened sometimes after dropping tables or indexes, and then creating new indexes for existing tables.

IN(..): when combining and IN(..) condition with a condition that didn't use an index, the result could contain duplicate rows.