v, ok := valueExpr.(*query.UnsafeSQLString)
if !ok {
"%s: right-hand side of %q operator must be a literal string (got: %v)",
query.InvalidExpressionErrMessage,
operator,
value,
)
}
v.Val = escapeLikeValueForPrefixSearch(v.Val, defaultLikeEscapeChar)
if operator == sqlparser.StartsWithStr {