D 2021-07-22T16:01:06.353 T +comment de9c86c9e4cdb34f4b7d65f160d1e589fb969bbf64c66d2b24c502d1ee424dbb Attempt\sto\soptimize\s"x\sIS\sNULL"\sand\s"x\sIS\sNOT\sNULL"\sexpressions\swhen\sx\sis\sa\scolumn\swith\sa\sNOT\sNULL\sconstraint.\s\sThis\saddresses\sthe\sperformance\sissue\r\ndescribed\sby\s[forum:/forumpost/a5fc33cf9d8f4ff5|forum\spost\sa5fc33cf9d8f4ff5]. U drh Z 4c4cb9ecd8f0dc8ff49312568104106d