Add support for parameters in SqlHandler #52
Description
Implemented as session parameters
https://www.postgresql.org/docs/9.6/static/sql-set.html
https://dev.mysql.com/doc/refman/5.7/en/set-statement.html
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Implemented as session parameters
https://www.postgresql.org/docs/9.6/static/sql-set.html
https://dev.mysql.com/doc/refman/5.7/en/set-statement.html