We have the same problem. MysqlMySQL version (Ver 14.14 Distrib 5.7.9, for osx10.11 (x86_64) using EditLine wrapper)
Had problems "SQL statement: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression"SQL statement: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression
and by adding the code at my.cnf file resolved it for me :
[mysqld] sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
[mysqld]
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION