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333414fe94
Added compiler-level flags used by Postgresql to place additional parenthesis than would normally be generated by precedence rules around operations involving JSON, HSTORE indexing operators as well as within their operands since it has been observed that Postgresql's precedence rules for at least the HSTORE indexing operator is not consistent between 9.4 and 9.5. Fixes: #3806 Change-Id: I5899677b330595264543b055abd54f3c76bfabf2